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System integration and analysisBy José M. Román
FiberCli
We are pure fiber
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• (Now) CEO at Fibercli
• (2015 –Now) CEO @ WISP Cloud Networking Spain
• (2008 –Now) Security Consultant and Analyst
• (2000 –2007) Networking, security and itil teacher .
17 years experience, Mikrotik Certified Consultant and Trainer.MTCNA,
MTCRE,MTCTCE, MTCUME,MTCWE,MTCINE,CISA,CISSP,MasterITIL
@ M A F I A S O L E H
M A D R I D / P R A G U E
J o s e . r o m a n @ f i b e r c l i . c o m
+ 3 4 6 5 2 2 4 1 4 3 1
JOSE MANUEL ROMAN
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F A J A R N U G R O H O
• (2015 –2016) Infrastucture (System, Network & Security) Engineer. @
Technology and Information Department of Jakarta Capital
Cityand Jakarta SmartCity
• (2012 –Now) Freelancer @ SMB to Enterprise customers
• (2008 –2012) Helpdesk, NOC (Network Operator Center). @ Wireless
Internet Service Provider and Triple Play (CaTV, VoIP and
Internet) Service Provider
Network Engineer by Job and Troublemaker by Act, currently
focusing on MikroTik, Juniper, Arista, UBNT, Vmware Virtualization,
Linux/Unix (Debian & FreeBSD). CCNA, MTCNA, MTCRE, MTCTCE,
JNCIA, JNCIS-ENT, JNCIS-SP, JNCIP-SP,MikroTikCertifiedTrainer.
@ M A F I A S O L E H
T O L E D O / J A K A R T A
f a j a r @ f i b e r c l i . c o m
+ 6 2 8 1 3 1 7 7 7 1 4 5 5
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Fiber optic key projectsLevel 3 support 24 x 7 for ISP’s
Mikrotik certificationsSystem and software integration
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20% Disccount forMUM assistant
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Problem
Multiple events on the network as a system administrator or network administrator we don’t know locate the source.
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Symptom
Multiple incidents that are not managed.
Feeling of lack of control over the network.
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Solution
Centralized system to collect, normalize,
visualization and analysis
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AGENDA Intro Architecture ELK (ElasticSearch, Logstash, Kibana) Mkt + AAA+ with Freeradius and DB centralized Mkt + Centralized Log and ELK Mkt + Monitoring and ELK Mkt + Netflow and ELK Q and A
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¿What is?ELK
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Elast icsearchElasticsearch is a search engine based on Lucene. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents.
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Elast icsearchElasticsearch is developed in Java and is released as open source under the terms of the Apache License
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Elast icsearch
• Distributed, scalable, and highly available
• Real-time search and analytics capabilities
• Sophisticated RESTful API
•https://www.elastic.co/products/elasticsearch
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Elast icsearch
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• Schema-free, REST & JSON based
distributed search engine
• Open Source: Apache License 2.0
• Easy to understand, yet very powerful query
languageFull text search (phrase, fuzzy)
Numeric search (support ranges, dates, ipv4
addresses)
Highlighting
Aggregations
Suggestions
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LogstashLogstash is a tool to collect, process, and forward events and log messages. Collection is accomplished via configurable input plugins including raw socket/packet communication, file tailing, and several message bus clients.
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Logstash
• Centralize data processing of all types
• Normalize varying schema and formats
• Quickly extend to custom log formats
• Easily add plugins for custom data sources
•https://wikitech.wikimedia.org/wiki/Logstash
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Logstash
• Inputs: collect data from variety of sources
• Filters: parse, process and enrich data
• Outputs: push data to a variety of destinations
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Kibana
• Execute queries on your data & visualize results
• Add/remove widgets
• Share/Save/Load dashboards
• Open Source: Apache License 2.0
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Big Picture
•
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KIBANAELASTICSEARCHLOGSTASHRSYSLOG
RADIUS
DATABASE BACKEND
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AAA System
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Radius
RADIUS is an application level protocol that carries Authentication, Authorization and Accounting (AAA)
configuration information between a Network Access Server (NAS) and a Shared Authentication Server. Radius defined in RFC
2865
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Radius
In MikroTik RouterOS itself support RADIUS for Hotspot, PPP, DHCP, Wireless and Login. RADIUS using transport protocol
UDP.UDP Port 1812 – AuthenticationUDP Port 1813 – Accounting
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Radius
RADIUS operation typically split into three type : Dial-In User : User who requesting for login and password
Network Access Server (NAS) / RADIUS Client : Device who accept the request from dial-in user
and
: Forward into RADIUS Server.
Shared Authentication Server / RADIUS Server : Device who make a decision for request (Accept,
: Reject or Challenge)
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Link-Establishment Link-Establishment
Dial-In User try to connect (username & password) RADIUS Access-Request
RADIUS Access-Challange
RADIUS Access-Request
RADIUS Access-Reject
RADIUS Access-Accept
Accounting-Request (Start)
Accounting-Response
OROR
Disconnect
Session Start
Accounting-Request (Stop)
Accounting-Response
Disconnect
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Topology
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MIKROTIK SITE 1
RADIUSDATABASE BACKEND
MIKROTIK SITE 3
MIKROTIK SITE 2
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service (ppp|login|hotspot|wireless|dhcp; Default: )
• hotspot - HotSpot authentication service
• login - router's local user authentication
• ppp - Point-to-Point clients authentication
• wireless - wireless client
• dhcp - DHCP protocol client authentication
Address (IPv4/IPv6 address; Default: 0.0.0.0) IPv4 or IPv6
address of RADIUS server.
Secret (string; Default: ) Shared secret used to access
the RADIUS server.
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Freeradius produces several logsthat we can process with logstash
http://code.metager.de/source/xref/freeradius/server/doc/schemas/logstash/
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# Tue Mar 10 15:32:24 201512# Packet-Type = Access-Request13# User-Name = "[email protected]"14# Calling-Station-Id = "01-02-03-04-05-06"15# Called-Station-Id = "aa-bb-cc-dd-ee-ff:myssid"16# NAS-Port = 1017# NAS-IP-Address = 10.9.0.418# NAS-Identifier = "Wireless-Controller-1"19# Service-Type = Framed-User20# NAS-Port-Type = Wireless-802.1121#
http://code.metager.de/source/xref/freeradius/server/doc/schemas/logstash/
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26input {27 stdin {28 type => radiusdetail29 }30}
http://code.metager.de/source/xref/freeradius/server/doc/schemas/logstash/
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filter {3435 if [type] == "radiusdetail" {3637 # join all lines of a record together38 multiline {39 pattern => "^[^\t]"40 negate => true41 what => "previous"42 }4344 # pull off the timestamp45 grok {46 match => [ "message", "^(?<timestamp>[^\n\t]+)[\n\t]" ]47 }4849 # create the timestamp field50 date {51 match => [ "timestamp", "EEE MMM dd HH:mm:ss yyyy",52 "EEE MMM d HH:mm:ss yyyy" ]53 }5455 # split the attributes and values into fields56 kv {57 field_split => "\n"58 source => "message"59 trim => "\" "60 trimkey => "\t "61 }62 }63}
http://code.metager.de/source/xref/freeradius/server/doc/schemas/logstash/
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65output {66 if [type] == "radiusdetail" {67 elasticsearch {68 host => localhost69 protocol => http70 cluster => elasticsearch71 index_type => "detail"72 index => "radius-%{+YYYY.MM.dd}"73 flush_size => 100074 }75 }76}
http://code.metager.de/source/xref/freeradius/server/doc/schemas/logstash/
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Centralize Log
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RSYSLOGRSYSLOG stand for "the rocket-fast system for log processing“ is an open-source software utility used on UNIX and Unix-like computer
systems for forwarding log messages in an IP network. It implements the basic syslog protocol, extends it with content-based filtering, rich filtering capabilities, flexible configuration
options and adds features such as using TCP for transport
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http://www.rsyslog.com/rsyslog-8-19-0-v8-stable-released/
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RSYSLOG• Protocol supported by rsyslog are:
• ISO 8601 timestamp with millisecond granularity and timezoneinformation
• The addition of the name of relays in the host fields to make it possible to track the path a given message has traversed
• Reliable transport using TCP
• Support GSS-API and TLS
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RSYSLOG
•Logging directly into various database engines.
• Support for RFC 5424, RFC 5425, RFC 5426
• Complete input/output support for systemd journal
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Topology
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KIBANAELASTICSEARCHLOGSTASHRSYSLOG
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MikroTik log Configuration
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Monitoring
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/snmp set enabled=yes contact="[email protected]" location="Mum Madrid" trap-community=public trap-version=2
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There are clients to export data to databases like fluentdb.
https://github.com/jojohappy/zabbix-relay
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We can integrate Zabbix events as input in Logstach, with thegoal to have a decoupled monitorization.
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Netflow
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NetFlow is a network protocol created by Cisco Systems tocollect information about ip traffic.
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/ip traffic-flow set active-flow-timeout=30m cache-entries=1M
\enabled=yes inactive-flow-timeout=15s interfaces=all
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/ip traffic-flow target add dst-address=ip.server port=5055 disabled=no \v9-template-refresh=20 v9-template-timeout=30m version=9
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To collect the output we need a netflow collector, for example pmacctsonda.
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When we collect the logs with pcmacct we’ll send the output in jsonformat to ElasticSearch.
https://github.com/pierky/pmacct-to-elasticsearch/blob/master/CONFIGURATION.md
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https://github.com/pierky/pmacct-to-elasticsearch/blob/master/CONFIGURATION.md
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Additional resources
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Grafana
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Influxdb
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Fluentd
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Thank you
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