Securely Managed and Timed Proxy Server

Proxy Server

“A server that sits between a client application, such as a web browser, and a real server. It intercepts all requests to the real server to see if it can fulfill the requests itself. If not, the proxy server forwards the request to a real server.

Proxy servers have two main purposes:

improved performance: Proxy servers can dramatically improve performance for groups of users. This is because it saves the results of all requests for a certain amount of time.

filter requests: Proxy servers can also be used to filter requests

Managed Timed Proxy Server

any proxy server, with timing capabilities, that requires some human interaction. The human administering an individual’s proxy request may interact with the proxy server through several methods:

! Remote console (may require NOC access)

! Electronic mail (requires authentication via web)

! Administrator interface (secured web interface)

! SSH or S/TELNET interface

Any one of these methods will work in effectively administering the managed timed proxy

server. The recommended method of administering this type of proxy server is through the

combined utilization of both email and webified interfaces. All of these methods should be securely

connected utilizing 128-bit SSL encryption. They can also integrate with any existing

mechanism of delivery.

This makes the integration process with the proxy server much easier, thus

enabling it to be a self-contained process that is inline with the proxies request; and the

managed timed proxy server is defined in lieu of the firewall or default gateway for any given

network that requires a proxies connection outward. Conversely, the firewall would connect

only with the managed timed proxy server for all outward network requests, granting access

via the proxy server, and denying any other requests that are not within its trusted exception

list.

The need to manage a timed proxy request for any given user may stem from the fact that

more and more companies have publicly stated that they are loosing productivity to

their employees browsing web sites that are not

company related, or that information found is not

utilized for any given project, network, system or application that may require attention.

On the external side, the internal NIC of the firewall is connected to the external NIC of the

MTPS, either directly or connected to the switch on the internal or trusted portion of the

network. The external NIC of the firewall is connected either to the router, or another

switch on the exposed or untrusted portion of the network. This configuration is almost

representative of an inline-DMZ configuration but really isn’t as the MTPS offers little

protection against inward attacks. Thus, the internal networks behind the MTPS are

prevented from any outward traffic, and the firewall only permits traffic from either the

MTPS and/or specified servers located within the DMZ.

The MTPS server can interface with an SQL database or independently of any database through a set of indexed files. Indexed files

would be based upon a root of the entire tree, which is at its root and is the subnet for the network being serviced. If more than one subnet is being serviced, then the root will

consist of several branches that will contain each

subnet.

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