Firewall software for Linux?

[molfer]

Hey Guys!
I'm new to linux and i don't know much about it. So i need your opinion which is the best firewall software for linux? I have a linux server [Ubuntu] which provides internet to the linux network [4 computers]. I have this small lab to experiment things on my own. So i need a firewall. Do i need to install it in all the computers or only the server machine? Help Guys. Thanks in advance...

[FaMe FacToR]

Hey!
All the linux distribution have built in firewall software the way windows has one integrated. Well for networking and firewall purposes there are some linux that are dedicated for the same. Special OS that make your server dedicated firewall.... Hope this info helps you.. All the best!

[Rudra.J]

Hey!
Well all linux has integrated Firewall... If you looking for Dedicated Firewall other than the integrated one, there are a number of softwares like :
Firestarter
SmoothWal
Zorp GPL
LutelWall
Gaurddog
Lokkit
All the best!

[SmirnOFF]

Hey!
Some Linux Dedicated Firewall OS :

• LEAF Project
• eBox
• Gibraltar Firewall

There are a lot of OS... All the best!