3 FAQ tagged "linux firewall"

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APF Linux Firewall Open Port 22 From Specific / Selected IP Address Only
Q. I’ve CentOS Linux server configured with APF firewall. How do I open port 22 from specific IP address only? I’ve fix static ADSL IP address assgined and I’d like to open port 22 from my IP 202.5.1.3 only using APF firewall script. How do I configure firewall?
Display the Natted / Routed Connections on a Linux Iptable Firewall
Q. I’ve Linux box acting as software router (natted) for over 100 computer connected via LAN. Regular netstat command is not displaying the list of all natted connections. How do I find out connections managed by netfilter / iptables which comes with the Debian 4.x system?
Howto disable the iptables firewall in Linux
Q. Quick question: I need to disable firewall in Linux for testing purpose. I’m using CentOS 4.4. How do I disable the firewall in Linux?
A. A Linux firewall is software based firewall that provides protection between your server (workstation) and damaging content on the Internet or network.
It will try to guard your computer [...]

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