traffic
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... An Appropriate Use Policy (AUP) may also be part of a security
policy. It should spell out what users shall and shall not do on the
various components of the system, including the type of traffic
allowed on the networks. The AUP should be as explicit as possible
...
... email hub. Likewise, an "allow all" policy may be adopted for
traffic between LAN's internal to the site, but a "deny all" policy
can be adopted between the site and the Internet ...
... middle. They are willing to pay the cost of security for their
external traffic and require strong security measures, but are
unwilling or unable to provide similar protections internally. This
...
... not serve their purposes. That said, there are still reasons to
protect the networks. For example, an intruder might divert network
traffic through an outside host in order to examine the data (i.e.,
to search ...
... flooding the network with extraneous
traffic. Please note that the term "router" in this section is used
as an example of a larger class ...
... DNS server can
re-route traffic to subvert security protections. For example,
routine traffic ...
... traffic to subvert security protections. For example,
routine traffic can be diverted to a compromised system to be
monitored; or, users can be tricked into providing authentication
...
... firewall acts as a gateway through which all traffic to and from the
protected network and/or systems passes. Firewalls ...
... the global Internet, for example. The unique feature about this wall
is that there needs to be ways for some traffic with particular
characteristics to pass through carefully monitored doors
("gateways ...
... layer protocols. The internal router's
purpose is to block all traffic except to the proxy server. If this
setup is rigidly implemented, a high level ...