network monitoring system and alert system
DESCRIPTION
Network Monitoring by cacti and alert via email(gmail/hotmail smart host), sms, twitter for completed lab file go to http://goo.gl/6QnHKTRANSCRIPT
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Network Monitoring System and Alert System
Supawit Wannapila ([email protected])CCNA,RHCEComputer Network Operation Center (CNOC)Information Technology Service Center (ITSC)Chiang Mai University
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Lab topology
server.example.com192.168.56.200
192.168.56.1
Host
External NetworkInternal Networkcacti.example.com192.168.56.100
Username : cnoc Password : cnoc
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SNMP
Simple Network Management Protocol
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Managed Device
Component
• Managed Device : อปุกรณท์ีม่ ีsnmp
• Agent : ซอฟทแ์วรท์ีอ่ยูบ่นอปุกรณ์
• Network Management System (NMS) : เครือ่งคอมพวิเตอรท์ีต่ดิตอ่กบั Agent
Agent
NMS
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Daemon & Port
• SNMP Agent (snmpd)
udp 161
• SNMP Notification Receiver (snmptrapd)
udp 162
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OID & MIB
• Object identifier (OID)
• Management Information Base (MIB)
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OID & MIB
OID MIB
1.3 org
1.3.6 dod
1.3.6.1 internet
1.3.6.1.1 directory
1.3.6.1.2 mgmt
1.3.6.1.3 experimental
1.3.6.1.4 private
1.3.6.1.4.1 enterprises
RootNode
ccitt(0)
org(3)
iso(1)
joint(2)
dod(6)
internet(1)
experi-mental
(3)
mgmt(2)
directory(1)
Private(4)
enter-prises
(1)
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snmp & snmpd installation
• ที ่server.example.com
• #apt-get install snmp snmpd
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snmpd configuration
• แกไ้ขไฟล ์/etc/snmp/snmpd.conf
เปิดใหเ้ครือ่งอืน่สามารถมาดงึขอ้มลู
• เริม่ snmpd ใหม ่– #service snmpd restart
#agentAddress udp:127.0.0.1:161agentAddress udp:161,udp6:[::1]:161
rocommunity [community string] default
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snmp configuration
• ที ่cacti.example.com
• ตดิตัง้ snmp, mibs
• #apt-get install snmp snmp-mibs-downloader
• น าเขา้ mibs แกไ้ขไฟล ์/etc/snmp/snmp.conf
#คอมเมนตอ์อก#mibs :
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snmp command
• Get
• GetNext
• Walk
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snmpget
• snmpget [OPTIONS] AGENT OID [OID]…
• OPTIONS
– v : เวอรช์ัน่ของ snmp {1, 2c, 3}
– c : comunitystring
– On : แสดง OID เป็นตวัเลข
# snmpget -v 2c -c [community string] [ip] sysName.0SNMPv2-MIB::sysName.0 = STRING: cacti.example.com
# snmpget -v 2c -c [community string] -On [ip] sysName.0.1.3.6.1.2.1.1.5.0 = STRING: cacti.example.com
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snmpgetnext
• snmpgetnext [OPTIONS] AGENT OID [OID]...
• OPTIONS
– v เวอรช์ัน่ของ snmp {1, 2c, 3}
– c : comunitystring
– On : แสดง OID เป็นตวัเลข
#snmpgetnext -v 2c -c [community string] [ip] systemSNMPv2-MIB::sysDescr.0 = STRING: Linux cacti.example.com 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:08:37 UTC 2011 i686
# snmpgetnext -v 2c -c [community string] -On [ip] system.1.3.6.1.2.1.1.1.0 = STRING: Linux cacti.example.com 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:08:37 UTC 2011 i686
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snmpwalk
• snmpwalk [OPTIONS] AGENT [OID]
• OPTIONS
– v เวอรช์ัน่ของ snmp {1, 2c, 3}
– c : comunitystring
– On : แสดง OID เป็นตวัเลข
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snmpwalk# snmpwalk -v 2c -c public localhost systemSNMPv2-MIB::sysDescr.0 = STRING: Linux cacti.example.com 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:08:37 UTC 2011 i686SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (156349) 0:26:03.49SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmpd.local.conf)SNMPv2-MIB::sysName.0 = STRING: cacti.example.comSNMPv2-MIB::sysLocation.0 = STRING: Unknown (configure /etc/snmp/snmpd.local.conf)SNMPv2-MIB::sysORLastChange.0 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORID.1 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBComplianceSNMPv2-MIB::sysORID.2 = OID: SNMP-MPD-MIB::snmpMPDComplianceSNMPv2-MIB::sysORID.3 = OID: SNMP-USER-BASED-SM-MIB::usmMIBComplianceSNMPv2-MIB::sysORID.4 = OID: SNMPv2-MIB::snmpMIBSNMPv2-MIB::sysORID.5 = OID: TCP-MIB::tcpMIBSNMPv2-MIB::sysORID.6 = OID: IP-MIB::ipSNMPv2-MIB::sysORID.7 = OID: UDP-MIB::udpMIBSNMPv2-MIB::sysORID.8 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroupSNMPv2-MIB::sysORDescr.1 = STRING: The SNMP Management Architecture MIB.SNMPv2-MIB::sysORDescr.2 = STRING: The MIB for Message Processing and Dispatching.SNMPv2-MIB::sysORDescr.3 = STRING: The management information definitions for the SNMP User-based Security Model.SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for SNMPv2 entitiesSNMPv2-MIB::sysORDescr.5 = STRING: The MIB module for managing TCP implementationsSNMPv2-MIB::sysORDescr.6 = STRING: The MIB module for managing IP and ICMP implementationsSNMPv2-MIB::sysORDescr.7 = STRING: The MIB module for managing UDP implementationsSNMPv2-MIB::sysORDescr.8 = STRING: View-based Access Control Model for SNMP.SNMPv2-MIB::sysORUpTime.1 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORUpTime.2 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORUpTime.3 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORUpTime.4 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORUpTime.5 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORUpTime.6 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORUpTime.7 = Timeticks: (0) 0:00:00.00SNMPv2-MIB::sysORUpTime.8 = Timeticks: (0) 0:00:00.00
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snmpwalk# snmpwalk -v 2c -c public -On localhost system.1.3.6.1.2.1.1.1.0 = STRING: Linux cacti.example.com 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:08:37 UTC 2011 i686.1.3.6.1.2.1.1.2.0 = OID: .1.3.6.1.4.1.8072.3.2.10.1.3.6.1.2.1.1.3.0 = Timeticks: (159043) 0:26:30.43.1.3.6.1.2.1.1.4.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmpd.local.conf).1.3.6.1.2.1.1.5.0 = STRING: cacti.example.com.1.3.6.1.2.1.1.6.0 = STRING: Unknown (configure /etc/snmp/snmpd.local.conf).1.3.6.1.2.1.1.8.0 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.2.1 = OID: .1.3.6.1.6.3.10.3.1.1.1.3.6.1.2.1.1.9.1.2.2 = OID: .1.3.6.1.6.3.11.3.1.1.1.3.6.1.2.1.1.9.1.2.3 = OID: .1.3.6.1.6.3.15.2.1.1.1.3.6.1.2.1.1.9.1.2.4 = OID: .1.3.6.1.6.3.1.1.3.6.1.2.1.1.9.1.2.5 = OID: .1.3.6.1.2.1.49.1.3.6.1.2.1.1.9.1.2.6 = OID: .1.3.6.1.2.1.4.1.3.6.1.2.1.1.9.1.2.7 = OID: .1.3.6.1.2.1.50.1.3.6.1.2.1.1.9.1.2.8 = OID: .1.3.6.1.6.3.16.2.2.1.1.3.6.1.2.1.1.9.1.3.1 = STRING: The SNMP Management Architecture MIB..1.3.6.1.2.1.1.9.1.3.2 = STRING: The MIB for Message Processing and Dispatching..1.3.6.1.2.1.1.9.1.3.3 = STRING: The management information definitions for the SNMP User-based Security Model..1.3.6.1.2.1.1.9.1.3.4 = STRING: The MIB module for SNMPv2 entities.1.3.6.1.2.1.1.9.1.3.5 = STRING: The MIB module for managing TCP implementations.1.3.6.1.2.1.1.9.1.3.6 = STRING: The MIB module for managing IP and ICMP implementations.1.3.6.1.2.1.1.9.1.3.7 = STRING: The MIB module for managing UDP implementations.1.3.6.1.2.1.1.9.1.3.8 = STRING: View-based Access Control Model for SNMP..1.3.6.1.2.1.1.9.1.4.1 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.4.2 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.4.3 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.4.4 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.4.5 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.4.6 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.4.7 = Timeticks: (0) 0:00:00.00.1.3.6.1.2.1.1.9.1.4.8 = Timeticks: (0) 0:00:00.00
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snmpwalk : interface example
# snmpwalk -v 2c -c public localhost interfaceIF-MIB::ifNumber.0 = INTEGER: 2IF-MIB::ifIndex.1 = INTEGER: 1IF-MIB::ifIndex.2 = INTEGER: 2IF-MIB::ifDescr.1 = STRING: loIF-MIB::ifDescr.2 = STRING: eth0IF-MIB::ifType.1 = INTEGER: softwareLoopback(24)IF-MIB::ifType.2 = INTEGER: ethernetCsmacd(6)IF-MIB::ifMtu.1 = INTEGER: 16436IF-MIB::ifMtu.2 = INTEGER: 1500IF-MIB::ifSpeed.1 = Gauge32: 10000000IF-MIB::ifSpeed.2 = Gauge32: 10000000IF-MIB::ifPhysAddress.1 = STRING:IF-MIB::ifPhysAddress.2 = STRING: 8:0:27:84:95:58IF-MIB::ifAdminStatus.1 = INTEGER: up(1)IF-MIB::ifAdminStatus.2 = INTEGER: up(1)IF-MIB::ifOperStatus.1 = INTEGER: up(1)IF-MIB::ifOperStatus.2 = INTEGER: up(1)IF-MIB::ifLastChange.1 = Timeticks: (0) 0:00:00.00IF-MIB::ifLastChange.2 = Timeticks: (0) 0:00:00.00มตีอ่
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snmpwalk : interface exampleIF-MIB::ifInOctets.1 = Counter32: 127825IF-MIB::ifInOctets.2 = Counter32: 34684849IF-MIB::ifInUcastPkts.1 = Counter32: 879IF-MIB::ifInUcastPkts.2 = Counter32: 56367IF-MIB::ifInNUcastPkts.1 = Counter32: 0IF-MIB::ifInNUcastPkts.2 = Counter32: 0IF-MIB::ifInDiscards.1 = Counter32: 0IF-MIB::ifInDiscards.2 = Counter32: 0IF-MIB::ifInErrors.1 = Counter32: 0IF-MIB::ifInErrors.2 = Counter32: 115IF-MIB::ifInUnknownProtos.1 = Counter32: 0IF-MIB::ifInUnknownProtos.2 = Counter32: 0IF-MIB::ifOutOctets.1 = Counter32: 127825IF-MIB::ifOutOctets.2 = Counter32: 826065IF-MIB::ifOutUcastPkts.1 = Counter32: 879IF-MIB::ifOutUcastPkts.2 = Counter32: 8163IF-MIB::ifOutNUcastPkts.1 = Counter32: 0IF-MIB::ifOutNUcastPkts.2 = Counter32: 0IF-MIB::ifOutDiscards.1 = Counter32: 0IF-MIB::ifOutDiscards.2 = Counter32: 0IF-MIB::ifOutErrors.1 = Counter32: 0IF-MIB::ifOutErrors.2 = Counter32: 0IF-MIB::ifOutQLen.1 = Gauge32: 0IF-MIB::ifOutQLen.2 = Gauge32: 0IF-MIB::ifSpecific.1 = OID: SNMPv2-SMI::zeroDotZeroIF-MIB::ifSpecific.2 = OID: SNMPv2-SMI::zeroDotZero
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snmpwalk : cisco switch example# snmpwalk -v 2c -c password 192.168.111.84 systemSNMPv2-MIB::sysDescr.0 = STRING: Cisco IOS Software, C2960 Software (C2960-LANBASE-M), Version 12.2(44)SE6, RELEASE SOFTWARE (fc1)Copyright (c) 1986-2009 by Cisco Systems, Inc.Compiled Mon 09-Mar-09 13:49 by gereddySNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.9.1.950DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (755500444) 87 days, 10:36:44.44SNMPv2-MIB::sysContact.0 = STRING:SNMPv2-MIB::sysName.0 = STRING: CNOC_2F_AdminRoomSNMPv2-MIB::sysLocation.0 = STRING:SNMPv2-MIB::sysServices.0 = INTEGER: 2SNMPv2-MIB::sysORLastChange.0 = Timeticks: (0) 0:00:00.00…..IF-MIB::ifDescr.10001 = STRING: FastEthernet0/1IF-MIB::ifDescr.10002 = STRING: FastEthernet0/2IF-MIB::ifDescr.10003 = STRING: FastEthernet0/3IF-MIB::ifDescr.10004 = STRING: FastEthernet0/4IF-MIB::ifDescr.10005 = STRING: FastEthernet0/5IF-MIB::ifDescr.10006 = STRING: FastEthernet0/6IF-MIB::ifDescr.10007 = STRING: FastEthernet0/7IF-MIB::ifDescr.10008 = STRING: FastEthernet0/8IF-MIB::ifDescr.10009 = STRING: FastEthernet0/9IF-MIB::ifDescr.10010 = STRING: FastEthernet0/10…...
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GUI snmp client
• http://www.ireasoning.com
• Free MIB Browser
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Date-Time Configuration
• ตัง้ Time Zone– #ln -sf /usr/share/zoneinfo/Asia/Bangkok
/etc/localtime
• ทดสอบ– #ls -l /etc/localtime
– lrwxrwxrwx 1 root root 32 2009-07-02 19:51 /etc/localtime -> /usr/share/zoneinfo/Asia/Bangkok
• ตัง้เวลา– #ntpdate time1.nimt.or.th
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NTP : Network Time Protocol
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NTP Configuration
• ตดิตัง้ ntp
– #apt-get install ntp
• แกไ้ขไฟล ์/etc/ntp.conf
server time1.nimt.or.thserver time.navy.mi.thserver clock.nectec.or.thserver ntp.ubuntu.com
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NTP Configuration
• เริม่ ntp ใหม่
– #service ntp restart
• ทดสอบ ntp
– #ntpq -np
– #ntptrace
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Cacti
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cacti
• http://www.cacti.net
• ใชง้านงา่ยกวา่ mrtg และความสามารถมากกวา่
• ใช ้rrdtool ในการท ากราฟ
• ม ีtemplate หลากหลาย
• เก็บขอ้มลูแบบปรับแตง่เองได ้
• ม ีplugins หลากหลาย
• จัดการผูใ้ชไ้ด ้
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cacti
host ปลายทางทีม่ขีอ้มลูใหเ้ชน่ snmp, web,ssh
ตวัดงึขอ้มลู
เก็บคา่ทีไ่ด ้ลงไฟล ์rrd
cacti
เว็บไซตท์ี่สรา้งกราฟจาก rrdไฟล์
ผูใ้ชง้านผา่นหนา้เว็บ
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installation
• #apt-get install cacti
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installation
• ก าหนดรหสัผา่นของ mysql server
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installation
• การแจง้เตอืน
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installation
• เลอืกเว็บเซอรเ์วอรเ์ป็น apache2
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installation
• เลอืกการตัง้คา่ cacti ดว้ย dbconfig-common
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• ระบรุหสัผา่นของ mysql server
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installation
• ระบรุหสัผา่นการใชฐ้านขอ้มลูของ cacti
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installation
• เรยีก cacti ผา่นเว็บบราวเซอร์
– http://{webserver-ip}/cacti
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installation
• เลอืก New Install และ Next ตามล าดับ
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installation
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installation
• ใช ้User Name : admin
• Password : admin
![Page 40: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/40.jpg)
installation
• บงัคบัใหเ่ปลีย่นรหสัผา่นในการเขา้ใชง้านครัง้แรก
![Page 41: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/41.jpg)
upgrade
• upgrade เป็น version ลา่สดุ
• Note : สามารถดาวนไ์ฟลต์น้ฉบับจาก www.cacti.net
#cd /usr/share/cacti#cp /root/cacti-0.8.8a.tar.gz ./
![Page 42: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/42.jpg)
upgrade
• ส ารองไฟลเ์ดมิ และฐานขอ้มลู
• แยกไฟล์
#mysqldump -uroot -p[หรสั] -l --add-drop-table cacti > mysql.cacti.sql#mv site site.old
#tar zxvf cacti-0.8.8a.tar.gz#mv cacti-0.8.8a site
![Page 43: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/43.jpg)
upgrade
• แกไ้ฟล์ site/include/config.php
$database_type = "mysql";$database_default = "cacti";$database_hostname = "localhost";$database_username = "cacti";$database_password = “[รหสัผา่น]";$database_port = "3306";
![Page 44: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/44.jpg)
upgrade
• แกไ้ขหอ้งเพือ่ใหใ้ชง้านขอ้มลูเดมิได ้
• คดัลอกไฟลท์ีจ่ าเป็นจากเดมิมาแตจ่ะทับเฉพาะอนัทีใ่หมก่วา่เทา่นัน้
#cd site#rm -rf rra#ln -sf /var/lib/cacti/rra/ rra
#cp -u -R ../site.old/scripts/* scripts/#cp -u -R ../resource/* resource/
![Page 45: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/45.jpg)
upgrade
• เรยีก cacti ผา่นเว็บบราวเซอร์
– http://{webserver-ip}/cacti
• เลอืก Upgrade from cacti 0.8.x และ Next ตามล าดับ จนเสร็จสิน้
![Page 46: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/46.jpg)
add device
![Page 47: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/47.jpg)
add device
![Page 48: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/48.jpg)
create graph
![Page 49: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/49.jpg)
create graph
![Page 50: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/50.jpg)
create graph
ใช ้64-bit Counters ส าหรับ Gigabit Interface
![Page 51: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/51.jpg)
add device to graph tree
![Page 52: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/52.jpg)
add device to graph tree
![Page 53: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/53.jpg)
Linux Server Monitoring
• Server ทีจ่ะ monitor ตอ้งตดิตัง้และเปิดใชง้าน snmpd แลว้
![Page 54: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/54.jpg)
Linux Server Monitoring
ip ของ server
![Page 55: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/55.jpg)
Linux Server Monitoring
![Page 56: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/56.jpg)
Linux Server Monitoring
![Page 57: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/57.jpg)
Linux Server Monitoring
เลอืกสิง่ทีจ่ะ
monitor
![Page 58: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/58.jpg)
Linux Server Monitoring
• เพิม่ Graph tree ใหมแ่ลว้เพิม่ device เขา้ไปใน tree ทีส่รา้งเพือ่ความเป็นระเบยีบ(ท าหรอืไมท่ าก็ได)้
![Page 59: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/59.jpg)
Windows Monitoring
• เปิด snmp service บน Windows
• ยกตวัอยา่ง Windows 7
• ไป start menu คน้ หาค าวา่ feature แลว้เลอืกTurn Windows features on or off
![Page 60: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/60.jpg)
Windows Monitoring
• เลอืก Simple Network Management Protocol (SNMP) แลว้กด OK
![Page 61: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/61.jpg)
Windows Monitoring
• ที ่start menu คน้ค าวา่ services แลว้เลอืกServices
![Page 62: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/62.jpg)
Windows Monitoring
![Page 63: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/63.jpg)
Windows Monitoring
![Page 64: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/64.jpg)
Windows Monitoring
ระบ ุcommunity string
ระบ ุip ทีส่ามารถดงึขอ้มลูได(้ip ของ cacti)
![Page 65: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/65.jpg)
Windows Monitoring
![Page 66: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/66.jpg)
Windows Monitoring
• แก ้rule ของ windows firewall อนุญาต ipของ cacti ใหม้าดงึ snmp ได ้
![Page 67: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/67.jpg)
Windows Monitoring
![Page 68: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/68.jpg)
Windows Monitoring
ระบ ุip ทีส่ามารถดงึขอ้มลูได(้ip ของ cacti)
![Page 69: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/69.jpg)
Windows Monitoring
• เพิม่ device แบบเดยีวกบั Linux Server
• เพิม่เขา้ไปใน graph tree ตามตอ้งการ
![Page 70: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/70.jpg)
cacti
host ปลายทางทีม่ขีอ้มลูใหเ้ชน่ snmp, web,ssh
ตวัดงึขอ้มลู
เก็บคา่ทีไ่ด ้ลงไฟล ์rrd
cacti
เว็บไซตท์ี่สรา้งกราฟจาก rrdไฟล์
ผูใ้ชง้านผา่นหนา้เว็บ
![Page 71: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/71.jpg)
graphing with custom data input
• สรา้งกราฟจาก script ทีเ่ขยีนเอง เนือ่งจาก template ทีม่มีาใหไ้มค่รอบคมุ
1. เขยีน script
2. สรา้ง data input
3. สรา้ง data template
4. สรา้ง graph template
5. เพิม่ graph template ให ้device
6. สรา้ง graph จาก template
![Page 72: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/72.jpg)
CPU Usage Script
• สรา้งไฟล์ script• #cp /root/cpuload.php /usr/share/cacti/site/scripts/
<?$host = $argv[1];$community = $argv[2];
$result = snmpwalk($host,$community,'hrProcessorLoad');$result = str_replace('INTEGER: ',"",$result);
$output = "";foreach($result as $index => $value){
$output .= "cpu$index:$value ";}echo trim($output);?>
![Page 73: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/73.jpg)
CPU Usage Script
• ทดสอบสครปิ
• รปูแบบของ output คอื output_name:valueแยกดว้ยชอ่งวา่ง
• output แตกตา่งตามจ านวน core ของ cpu ตอ้งสรา้ง data template และ graph template ให ้สอดคลอ้งกนั
#cd /usr/share/cacti/site/scripts#php cpuload.php [ip] [community_string]cpu0:7 cpu1:7 cpu2:8 cpu3:7
![Page 74: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/74.jpg)
CPU Usage Script
• สรา้ง data input
![Page 75: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/75.jpg)
CPU Usage Script
• ก าหมดคา่ตา่งๆ ของ data input
<path_cacti> : ตวัแปรของ cacti อา้งถงึ path ของ cacti<host> :<community> : ตวัแปรก าหนดเองส าหรับสครปิ
php <path_cacti>/scripts/cpuload.php <host> <community>
![Page 76: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/76.jpg)
CPU Usage Script
• เพิม่ input ใหส้อดคลอ้งกบัสครปิ
![Page 77: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/77.jpg)
CPU Usage Script
• เพิม่ input ใหส้อดคลอ้งกบัสครปิ
ใชต้วัแปรของ cacti เพือ่ใช ้
hostname ของอปุกรณ์
![Page 78: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/78.jpg)
CPU Usage Script
• เพิม่ input ใหส้อดคลอ้งกบัสครปิ
ใชต้วัแปรของ cacti เพือ่ใช ้community string ของอปุกรณ์
![Page 79: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/79.jpg)
CPU Usage Script
• เพิม่ output ใหส้อดคลอ้งกบัสครปิ
![Page 80: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/80.jpg)
CPU Usage Script
• เพิม่ output ใหส้อดคลอ้งกบัสครปิ
• ท า output ใหค้รบทกุ core ตาม output ของ script
ตอ้งเหมอืน output_nameจาก script
![Page 81: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/81.jpg)
CPU Usage Script
• เสร็จสิน้การสรา้ง Data input
![Page 82: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/82.jpg)
CPU Usage Script
• สรา้ง data template
![Page 83: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/83.jpg)
CPU Usage Script
![Page 84: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/84.jpg)
CPU Usage Script
• เพิม่ Data Source Item
![Page 85: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/85.jpg)
CPU Usage Script
![Page 86: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/86.jpg)
CPU Usage Script
• สรา้ง internal data source ใหค้รบตาม output และเลอืก output field ใหต้รง
![Page 87: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/87.jpg)
CPU Usage Script
• สรา้ง graph template
![Page 88: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/88.jpg)
CPU Usage Script
![Page 89: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/89.jpg)
CPU Usage Script
![Page 90: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/90.jpg)
CPU Usage Script
• เพิม่ graph item
![Page 91: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/91.jpg)
CPU Usage Script
![Page 92: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/92.jpg)
CPU Usage Script
![Page 93: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/93.jpg)
CPU Usage Script
![Page 94: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/94.jpg)
CPU Usage Script
![Page 95: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/95.jpg)
CPU Usage Script
• เพิม่ Graph items ใหค้รบตาม output
![Page 96: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/96.jpg)
CPU Usage Script
• เพิม่ graph template ให ้device
![Page 97: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/97.jpg)
CPU Usage Script
• สรา้งกราฟ
![Page 98: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/98.jpg)
CPU Usage Script
![Page 99: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/99.jpg)
Troubleshooting
![Page 100: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/100.jpg)
Troubleshooting
![Page 101: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/101.jpg)
monitor apache statistic with template
• ทีเ่ครือ่งทีรั่น apache ตอ้งเพิม่ module statusและอณุญาตใหเ้ครือ่ง cacti เขา้ดู
• ตอ้งมกีาร configuration apache เพิม่เตมิ
• แกไ้ขไฟล ์/etc/apache2/mod-enabled/status.conf
• หลังจากแกไ้ขไฟลเ์สร็จใหเ้ริม่ apache2 ใหม่
• #service apache2 restart
![Page 102: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/102.jpg)
monitor apache statistic with template
LoadModule status_module modules/mod_status.so
<IfModule mod_status.c>## Allow server status reports generated by mod_status,# with the URL of http://servername/server-status# Uncomment and change the ".example.com" to allow# access from other hosts.#ExtendedStatus On<Location /server-status>
SetHandler server-statusOrder deny,allowDeny from allAllow from localhost ip6-localhostAllow from [ip ของเครือ่ง cacti]
# Allow from .example.com</Location>
</IfModule>
![Page 103: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/103.jpg)
monitor apache statistic with template
• ทดสอบการเขา้ดสูถานะของ apache#apt-get install elinks#elinks --dump http://[ip ของ server]/server-status?auto
Total Accesses: 13830 Total kBytes: 425283 CPULoad: .86846 Uptime: 2676
ReqPerSec: 5.16816 BytesPerSec: 162739 BytesPerReq: 31488.8 BusyWorkers:
11 IdleWorkers: 10 Scoreboard:
WW___._WW.C_W_W...._W.__C_.W...W................................................................................................................................................................................................................................
![Page 104: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/104.jpg)
monitor apache statistic with template
• ดาวโหลด script• #cd /tmp
• #cp /root/ApacheStats_0.8.2.zip ./
• (http://forums.cacti.net/viewtopic.php?t=25227)
• #apt-get install unzip
• #unzip ApacheStats_0.8.2.zip
• #cp ApacheStats_0.8.2/ss_apache_stats.php/usr/share/cacti/site/scripts/
• ดาวโหลด script มาไวท้ีเ่ครือ่งใชง้านเว็บบราวเซอรแ์ละแยกไฟล์
![Page 105: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/105.jpg)
monitor apache statistic with template
• น าเขา้ไฟล ์cacti_host_template_webserver_-_apache.xml
![Page 106: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/106.jpg)
monitor apache statistic with template
![Page 107: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/107.jpg)
monitor apache statistic with template
• เพิม่ device โดยใช ้Host template เป็น WebServer -Apache
![Page 108: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/108.jpg)
monitor apache statistic with template
• สรา้งกราฟจาก template
• เพิม่ host ใน tree ตามตอ้งการ
![Page 109: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/109.jpg)
Cacti plugins
![Page 110: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/110.jpg)
plugin architecture
• เปิดการใชง้าน PIA
![Page 111: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/111.jpg)
plugin architecture
![Page 112: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/112.jpg)
install plugin : settings
• ดาวนโ์หลดไฟล์(http://docs.cacti.net/plugin:settings)
#cd /tmp#cp /root/settings-v0.71-1.tgz ./#tar zxvf settings-v0.71-1.tgz#mv settings /usr/share/cacti/site/plugins/
![Page 113: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/113.jpg)
install plugin : settings
• ท าให ้plugin เริม่ท างาน
![Page 114: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/114.jpg)
ตัง้คา่การสง่ email
• ตดิตัง้ MTA (Mail Transfer Agent)
• เลอืก Internet Site
#apt-get install postfix
![Page 115: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/115.jpg)
ตัง้คา่การสง่ email
• ใช ้gmail หรอื hotmail เป็น relay host
• gmail host : smtp.gmail.com:587
• hotmail host : smtp.live.com:587
• สรา้งไฟลร์หสัผา่น /etc/postfix/sasl_passwd
[smtp host] [email address]:[password]เชน่smtp.gmail.com [email protected]:passwd
![Page 116: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/116.jpg)
ตัง้คา่การสง่ email
• สรา้ง hash ของรหสัผา่น
• #postmap /etc/postfix/sasl_passwd
• ลบรหสัผา่นแบบ plaintext
• #rm /etc/postfix/sasl_passwd
• #chmod 400 /etc/postfix/sasl_passwd.db
![Page 117: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/117.jpg)
ตัง้คา่การสง่ email
• แกไ้ขไฟล ์/etc/postfix/main.cf
• เริม่ postfix ใหม่
• #service postfix restart
เพิม่บรรทัดsmtp_sasl_auth_enable = yessmtp_sasl_password_maps = hash:/etc/postfix/sasl_passwdsmtp_sasl_security_options = noanonymoussmtp_sasl_tls_security_options = noanonymoussmtp_use_tls = yesแกบ้รรทัดrelayhost = [smtp host]:587
![Page 118: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/118.jpg)
ตัง้คา่การสง่ email
ใหเ้หมอืน email ทีใ่ช ้relay
![Page 119: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/119.jpg)
install plugin : thold
• เป็น plugin ส าหรับแจง้เตอืนเห็นการตา่งๆ
• ดาวนโ์หลดไฟล ์plugin (http://docs.cacti.net/plugin:thold)
#cd /tmp#cp /root/thold-v0.5.0.tgz ./#tar zxvf thold-v0.5.0.tgz#mv thold /usr/share/cacti/site/plugins/
![Page 120: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/120.jpg)
install plugin : thold
• ท าให ้plugin เริม่ท างาน
![Page 121: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/121.jpg)
config plugin : thold
![Page 122: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/122.jpg)
config plugin : thold
![Page 123: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/123.jpg)
tweet via php
• สรา้ง app ส าหรับ tweet ไปที ่https://dev.twitter.com ท าการ login
• ไปที ่My applications แลว้คลกิ Create a new application
![Page 124: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/124.jpg)
tweet via php
![Page 125: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/125.jpg)
tweet via php
![Page 126: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/126.jpg)
tweet via php
• ที ่tab detail กด Create my access token ดา้นลา่ง
• ขัน้ตอนนีจ้ะไดค้า่ 4 คา่ซึง่จะใชใ้นขัน้ตอนตอ่ไป
– Consumer key
– Consumer secret
– Access token
– Access token secret
![Page 127: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/127.jpg)
tweet via php
• ดาวนโ์หลดไฟลไ์ฟล ์class ส าหรับการ tweet(https://github.com/abraham/twitteroauth)
#mkdir /usr/share/cacti/tweet#cd /usr/share/cacti/tweet#cp /root/ twitteroauth-master.zip ./#unzip twitteroauth-master.zip#mv twitteroauth-master/twitteroauth ./
![Page 128: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/128.jpg)
tweet via php
• ดาวโหลดไฟล ์script ทีใ่ช ้tweet
• #cd /usr/shar/cacti/tweet/
• #cp /root/tweet.php.gz ./
• #gunzip tweet.php.gz
![Page 129: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/129.jpg)
tweet via php
<?$msg = $argv[1];$consumerKey = '[มาจากเว็บ twitter]';$consumerSecret = '[มาจากเว็บ twitter]';$oAuthToken = '[มาจากเว็บ twitter]';$oAuthSecret = '[มาจากเว็บ twitter]';
require_once('/usr/share/cacti/tweet/twitteroauth/twitteroauth.php');
// create a new instance$tweet = new TwitterOAuth($consumerKey, $consumerSecret, $oAuthToken, $oAuthSecret);
//send a tweet$tweet->post('statuses/update', array('status' => $msg));?>
![Page 130: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/130.jpg)
tweet via php
• ตดิตัง้ curl
• ทดสอบ tweet
#php tweet.php ‘Hello cacti class test’
#apt-get install php5-curl
![Page 131: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/131.jpg)
thold alert to twitter
• ส ารองไฟล์
• แกไ้ขไฟล ์/usr/share/cacti/site/plugins/thold/thold_functions.php
#cp /usr/share/cacti/site/plugins/thold/thold_functions.php{,.ori}
![Page 132: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/132.jpg)
thold alert to twitter
• คน้หาค าวา่ function thold_mail
• แลว้เพิม่บรรทัด
function thold_mail($to, $from, $subject, $message, $filename, $headers = '') {
system("/usr/bin/php /usr/share/cacti/tweet/tweet.php'$subject'");
global $config;
![Page 133: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/133.jpg)
สรา้ง notification list
![Page 134: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/134.jpg)
สรา้ง threshold
![Page 135: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/135.jpg)
สรา้ง threshold
![Page 136: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/136.jpg)
สรา้ง threshold
![Page 137: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/137.jpg)
สรา้ง threshold
![Page 138: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/138.jpg)
สรา้ง threshold
เลอืกรายชือ่ทีจ่ะไดรั้บการแจง้เตอืน
เลอืกรายชือ่ทีจ่ะไดรั้บการแจง้เตอืน
เพิม่เตมิ
![Page 139: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/139.jpg)
ทดสอบ threshold
• แกไ้ขไฟล ์/usr/share/cacti/site/scripts/ cpuload.php
• หลังจากทดสอบเสร็จแกไ้ขใหเ้หมอืนเดมิ
$output = "";$result[0] = '95'; //เพิม่บรรทดันี้foreach($result as $index => $value)
![Page 140: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/140.jpg)
ทดสอบ threshold
![Page 141: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/141.jpg)
ทดสอบ threshold
![Page 142: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/142.jpg)
ทดสอบ host up/down
แกไ้ขใหผ้ดิ เพือ่จ าลอง host down
แกไ้ขใหถ้กูตอ้งเมือ่ทดสอบเสร็จ
![Page 143: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/143.jpg)
ทดสอบ host up/down
ควร protect twitter ทีใ่ชแ้จง้เตอืน
![Page 144: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/144.jpg)
ทดสอบ host up/down
![Page 145: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/145.jpg)
Network Weather Map
![Page 146: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/146.jpg)
install
• ดาวนโ์หลดไฟล ์(http://www.network-weathermap.com)
#cd /tmp#cp /root/php-weathermap-0.97c.zip ./#unzip php-weathermap-0.97c.zip#mv weathermap/usr/share/cacti/site/plugins/
![Page 147: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/147.jpg)
install
• แกไ้ขไฟล ์เพิม่บรรทัดตอ่ทา้ยไฟล ์/usr/share/cacti/site/include/config.php
$plugins = array();$plugins[] = 'weathermap';?>
![Page 148: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/148.jpg)
install
• เปลีย่น permission ของไฟล์
#cd /usr/share/cacti/site/plugins/weathermap#chmod 770 configs#chgrp www-data configs#chmod 770 output#chgrp www-data output
![Page 149: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/149.jpg)
install
• สรา้งไฟล ์password ส าหรับ editor
• แกไ้ขตอ่ทา้ยไฟล ์/etc/cacti/apache.conf
#htpasswd -c /etc/apache2/cactipasswdadmin
<Directory /usr/share/cacti/site/plugins/weathermap><Files editor.php >
AuthType basicAuthName "Authorized Access Only!!!"AuthUserFile /etc/apache2/cactipasswdRequire valid-user
</Files></Directory>
![Page 150: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/150.jpg)
install
• ตดิตัง้ php5-gd และrestart apache
• แกไ้ขไฟล ์/usr/share/cacti/site/plugins/weathermap/editor.php
#apt-get install php5-gd#service apache2 restart
$ENABLED=true;
![Page 151: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/151.jpg)
settings
![Page 152: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/152.jpg)
Weathermap : editor
มปีระโยชนม์าก
![Page 153: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/153.jpg)
editor
![Page 154: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/154.jpg)
Map Properties
![Page 155: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/155.jpg)
Map Style
![Page 156: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/156.jpg)
Add map
![Page 157: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/157.jpg)
Add map
![Page 158: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/158.jpg)
Add node
![Page 159: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/159.jpg)
Change LABEL
เปลีย่น label เป็น | CORE_SWITCH |
![Page 160: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/160.jpg)
Manual Edit Node
![Page 161: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/161.jpg)
Relative Position
![Page 162: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/162.jpg)
Relative Position
![Page 163: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/163.jpg)
Relative Position
![Page 164: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/164.jpg)
Add link
Node เริม่ตน้ควรเป็น edgeNode ปลายทางควรเป็น core
![Page 165: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/165.jpg)
Edit link
กราฟทีจ่ะแสดงบนลงิคต์อ้งเป็นกราฟของ node เริม่ตน้
![Page 166: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/166.jpg)
Map re-create every polling peroid
![Page 167: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/167.jpg)
Legend and Timestamp
![Page 168: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/168.jpg)
parallel link : offset
![Page 169: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/169.jpg)
curve link : via
![Page 170: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/170.jpg)
host status legend
• แกไ้ขไฟล ์config ของ map แบบ manual ในหอ้ง /usr/share/cacti/site/plugins/weathermap/configs/
KEYPOS host 50 50 Host Status KEYSTYLE host tags 250 SCALE host 0 0.5 192 192 192 Disabled SCALE host 0.5 1.5 255 128 128 Down SCALE host 1.5 2.5 128 128 255 RecoveringSCALE host 2.5 3.5 128 255 128 Up
# End of global section
![Page 171: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/171.jpg)
host status legend
![Page 172: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/172.jpg)
host status legend
ชือ่ SCALE ในขัน้ตอนทีแ่ลว้
id ของ host ใน cacti
![Page 173: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/173.jpg)
host status legend
![Page 174: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/174.jpg)
gammu-smsd
![Page 175: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/175.jpg)
gammu-smsd
• http://wammu.eu/smsd/
• อา่นคา่จากฐานขอ้มลูแลว้สง่ sms
• ใชง้านไดก้บัโทรศพัทม์อืถอืหลายรุน่ http://wammu.eu/phones/
• ทีใ่ชง้านอยูเ่ป็น nokia 1202 และสาย data link ซือ้แยก
![Page 176: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/176.jpg)
install
• #apt-get install gammu-smsd
![Page 177: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/177.jpg)
config : database
• #mysql -uroot -p[รหสัผา่น]
• mysql> CREATE DATABASE `gammu-smsd`
• -> DEFAULT CHARACTER SET utf8
• -> DEFAULT COLLATE utf8_general_ci;
• Query OK, 1 row affected (0.02 sec)
• quit
![Page 178: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/178.jpg)
config : database
• #cp /usr/share/doc/gammu-smsd/examples/mysql.sql.gz /tmp/
• #gunzip /tmp/mysql.sql.gz
• #mysql -uroot -pqwerty gammu-smsd < /tmp/mysql.sql
![Page 179: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/179.jpg)
config : gammu
• แกไ้ขไฟล ์/etc/gammu-smsdrc
[gammu]port = /dev/ttyUSB0 (หรอืตามพอรท์ทีเ่ชือ่มตอ่)connection = fbus
[smsd]CheckSecurity = 0CheckBattery = 0CheckSignal = 0ResetFrequency = 0StatusFrequency = 0MaxRetries = 3debuglevel = 0commtimeout = 30sendtimeout = 90
![Page 180: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/180.jpg)
config : gammu
• แกไ้ขไฟล ์/etc/gammu-smsdrc (ตอ่)
• เริม่ gammu-smsd ใหม่
• #service gammu-smsd restart
service = SQLDriver = native_mysqllogfile = sysloguser = rootpassword = [รหสัฐานขอ้มลู]database = gammu-smsdpc = localhost
![Page 181: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/181.jpg)
send sms
• เพิม่ขอ้มลูลงไปในฐานขอ้มลู gammu-smsdตาราง outbox ระบบจะสง่ขอ้ความไปอตัโนมัตดิงัตวัอยา่ง
• สว่น log การสง่จะอยูใ่นฐานขอ้มลูและ syslog สามารถเขา้ไปดไูดผ้า่น phpmyadmin
INSERT INTO outbox SETDestinationNumber = ‘หมายเลขผูร้บั',TextDecoded = ‘ขอ้ความ',CreatorID = ‘หมายเหตกุารสง่',Coding = 'Unicode_No_Compression'
![Page 182: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/182.jpg)
SARAN
Access Point Monitoring
![Page 183: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/183.jpg)
SARAN
• ระบบตรวจสอบการท างานของ access point
• เขยีน script เพือ่ดงึขอ้มลูโดยผลลัพธข์องscript ตอ้งเป็นรปูแบบทีก่ าหนด
• เก็บขอ้มลูโดย rrdtool และแสดงผลเป็นกราฟ
• วางจดุตดิตัง้ access point ลงบนแผนทีโ่ดยใช ้google map api
![Page 184: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/184.jpg)
SARAN
![Page 185: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/185.jpg)
Require software
• Ubuntu
• #apt-get install lamp-server^ mysql-server rrdtool php5-curl
• Centos
• install additional package php-bcmath
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installation
• คดัลอกไฟล์
• #cd /tmp
• #cp /root/saran.tar.gz ./
• #tar zxvf saran.tar.gz
• #mv saran /usr/share/
• #cd /usr/share/saran/
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installation
• น าเขา้ฐานขอ้มลู
• #mysql -u[username] -p[password] < config/saran.sql
• แกไ้ขไฟล ์html/connect.php
$db_host = "localhost";$db_user = “[username]";$db_pass = “[password]";$db_name = "saran";
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installation
• แกไ้ขไฟล ์/etc/apache2/sites-enabled/000-default
DocumentRoot /var/www<Directory />
Options FollowSymLinks MultiViewsAllowOverride None
</Directory>
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installation
• #cp config/saran_apache2.conf /etc/apache2/conf.d/
• #cp config/saran_crontab/etc/cron.d/
• เริม่ apache2 ใหม่
• #service apache2 restart
• เรยีกเว็บ http://{server-ip}/saran
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Log in
• default username : adminpassword : qwerty
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Change default password
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Add/remove user
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Graph Option
slide to change
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Access Point Color
slide to change
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Add Zone
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Add update script
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Add update script
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Script
• อาจเป็น php, perl หรอื shell script ก็ได ้เมือ่รันแลว้ไปดงึคา่จากอปุกรณแ์ลว้น ามาประมวลผลเพือ่ใหไ้ดผ้ลลัพธอ์อกมาในรปูแบบดงัตอ่ไปนี้
• เชน่
AP ID:AUTHEN:SuccessAuthenticationUser:TOTAL:Total User
1:AUTHEN:20:TOTAL:252:AUTHEN:33:TOTAL:34
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cisco controller script example
• /usr/share/saran/script/cisco.php
• สามารถรันโดย
• #/usr/bin/php/usr/share/saran/script/cisco.php{ip} {community string}
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Add access point : manual
id จะตอ้งมใีน output ของ update script ทีเ่ลอืก
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Add access point : script
id จาก output ของ script จะตอ้งมใีน output ของ update script ทีเ่ลอืก
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Edit access point
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Access point location
![Page 204: Network Monitoring System and Alert System](https://reader030.vdocument.in/reader030/viewer/2022012312/549d4bd0b47959aa318b4994/html5/thumbnails/204.jpg)
Access point location
เลอืก AP แลว้ลากจดุบนแผนที่ไปยังต าแหน่งทีต่อ้งการ
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Access point status
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Access point report
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Access point up/down notification via twitter
สรา้ง twitter application ที ่https://dev.twitter.comหรอืใช ้application เดมิจาก cacti notification ก็ได ้ส ิง่ทีต่อ้งการคอื ConsumerKey และ ConsumerSecret
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Access point up/down notification via twitter
คลกิ Get Pin จะเปิดหนา้ตา่ง twitter ขึน้มาใหล้งชือ่เขา้ใชด้ว้ยบญัช ีtwitter ทีต่อ้งการหลังจากลงชือ่ส าเร็จใหน้ า pin มาใสแ่ลว้คลกิ activate
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Access point up/down notification via twitter
เลือ่นเพือ่เลอืกเวลาในการแจง้เตอืน การเลอืกเวลานอ้ยเกนิไปอาจท าใหแ้จง้เตอืนเยอะจน api limit เต็มกรณีเกดิการ flapping ของ access point
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Test access point down
• แกไ้ฟล ์script /usr/share/saran/script/test.php
<?$row = 1;while($row<501){if($row<>1) //แกค้นืหลงัจากทดสอบเสร็จ{
echo "$row:AUTHEN:".rand(10,25).":TOTAL:".rand(25,35)."\n";}$row++;}?>
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Access point status
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Access point status
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Top Ten access point usage
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Statistic and Status table
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Lab Resource
• http://myweb.cmu.ac.th/supawit.w/cacti
• http://docs.cacti.net
• http://www.network-weathermap.com
• https://developers.google.com/maps
• https://dev.twitter.com