Network Resources

How to migrate a firewall

How to  migrate a firewall the ITX how to guide read more
Network Resources

Control versus protection – the role of a firewall

Firewalls have always had a simple purpose; let through specific traffic types, and deny everything else. While this works very well for general network control and security, it can be a positive hindrance for desktop Internet users. read more

PC or Linux Firewall

Dedicated device or roll your own? It’s not difficult to build and configure a Linux server to act as a firewall.

   

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IT EXPERT TOP TIP

tools If you're trying to solve connectivity problems at a customer site, you can ask a colleague back at your office to use ping and traceroute to see how the network appears to the outside world; or you can use the tools at http://www.heise-online.co.uk/networks/nettools/ to do it yourself. There are tools for looking up Mac addresses and calculating subnet masks too. If you need a more detailed trace, http://w3dt.net/tools/pathping has a pathping tool.
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