[meetdilip]

Which firewall is best for Linux ? Does anyone offer free firewall for Linux ? Have you guys tried it ? How was the experience ?

[sagher]

Two well known Procedures i know. after built in linux firewall like iptable rules.
one is fail2ban you can install it with ssh command apt-get install fail2ban and the second one is ufw and you can install it with apt-get install ufw.
both are easy to use. you can get there tutorial easily from internet. also command lines to install and make iptable rules. as a custom rules.

[Jayce]

Firewall isn't really needed if you have a linux vm/container unless you are really new to these stuff, I mean everyone can secure his VPS against most of the attacks. And no, there's no free Firewall available AFAIK.

[kubanek_kuba]

I was using APF and it works fine but you need to configure it basing what you have on vps.

[TrK]

There is a free available firewall for most of the linux distros, its called CSF and here is it https://configserver.com/cp/csf.html.

[maroon93]

I heard Iptables is a secure one. Its really a nice and simple frontend to Netfilter and a powerful firewall manager built on top of iptables.

[Vuluts]

iptables I think is mostly used firewall for linux distros, and it's easy to configure base on your needs.

[bakman12]

I heard Iptables is a secure one. Its really a nice and simple frontend to Netfilter and a powerful firewall manager built on top of iptables.

you can use shorewall to manage ip tables as well.It is also known as “Shoreline Firewall”. It is built upon the iptables/ipchains netfilter system.

[maroon93]

you can use shorewall to manage ip tables as well.It is also known as “Shoreline Firewall”. It is built upon the iptables/ipchains netfilter system.

i already using it : its good firewall system im using it for NAT and some forwarding configuration

[Lucifer]

use iptables. its the most using firewall for the linux