APLawrence.com -  Resources for Unix and Linux Systems, Bloggers and the self-employed

2005/02/21 stealth firewall,ebtables

A stealth firewall is a bridge that applies firewall rules to packets that pass through it. The reason "stealth" is used is because a bridge is transparent to the machines using it: they can't tell that all the machines in the subnet aren't on the same physical lan. This also means that you can insert and remove such a device without disruption or indeed any awareness by the users of the network. The device itself doesn't even requre any ip addresses of its own, so it can be truly invisible.

These are also sometimes called "transparent firewalls", "in-line firewalls" and (of course) 'bridging firewalls".

There's an open source project ( Hogwash) that seems to be dying right now, but LinuxWorld recently ran a good article about configuring something like this with ebtables.

Got something to add? Send me email.





(OLDER)    <- More Stuff -> (NEWER)    (NEWEST)   

Printer Friendly Version

-> -> 2005/02/21 stealth firewall,ebtables



Increase ad revenue 50-250% with Ezoic


More Articles by

Find me on Google+

© Tony Lawrence



Kerio Connect Mailserver

Kerio Samepage

Kerio Control Firewall

Have you tried Searching this site?

Unix/Linux/Mac OS X support by phone, email or on-site: Support Rates

This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more.

Contact us