digncc> Hello All,
digncc> Has anyone found making a debian machine with firewall support useful?
digncc> What are firewalls useful for? Do they simply prevent packets from passing
digncc> through the firewall into the rest of the network? Would a firewall
digncc> necessarly have to be also configured to be a router? Any info you guys
digncc> can provide would be useful. I was thinking about making one of my debian
digncc> machies a firewall, but don't really know what I would do with it:)
Yes a firewall is very useful, because by filtering packets, prevent
an outside intruder to access resources inside your network. Inside
you may have services running that could be easily hacked, like
telnet, dhcp, or Windoze disks sharing.
So the firewall separate and link your network to the Internet.
Obviously if don't have a network to protect you don't need a
firewall :-)
For more informations about firewalls look at:
http://www.clark.net/pub/mjr/pubs/fwfaq/
http://www.interhack.net/pubs/fwfaq/
About firewalls and routing...
There are two types of firewalls:
1. Network level
2. Application level
A network level firewall is a router with packet filtering capabilities.
Application level firewalls generally are hosts running proxy servers.
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Best regards,
Minta Adrian - YO3GIH phone: +401.683.66.52
mailto:[EMAIL PROTECTED] http://www.csit-sun.pub.ro/~gygy/
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