How To Save iptables firewall rules Centos/Redhat/Fedora Linux

This is something that annoys a lot of people, fortunately the Redhat style OS's are the most simple in this respect.  I disagree that Debian's way makes sense, it is more of a hackish approach in how they implement iptables.

Anyway, for those who are using Redhat/Centos style OS's it is very simple.

Set your rules from the shell/command prompt and to save the iptables firewall rules so they are remember/loaded on boot just run this command:

service iptables save

What happens is the rules are automatically saved to /etc/sysconfig/iptables

If you make frequent changes it's wise to manually back that file up or make copies of it.  The reason this works well is because Redhat has a smart initscript that always check upon startup for rules in the /etc/sysconfig/iptables and loads them if they are found.

After this everytime you reboot your iptables settings will be restored and preserved.


Tags:

iptables, firewall, centos, redhat, fedora, linuxthis, annoys, fortunately, os, debian, hackish, implement, shell, prompt, automatically, etc, sysconfig, manually, copies, initscript, startup, loads, everytime, reboot, settings, restored, preserved,

Latest Articles

  • Unable to mount location Failed to retrieve share list from server: Connection timed out - Samba/Linux Filesharing Not working Ubuntu Mint Linux Solution
  • How To Resize, Reduce a Video to a Specific Size and Quality Ubuntu Linux using ffmpeg
  • vi how to delete all lines in the file
  • Linux Mint / Ubuntu 20 Intel I219 NIC disconnects
  • Linux can't boot/grub boot loader screen with no options solution
  • EFI PXE grub2 Howto guide for Linux EFI PXE Booting on Debian, Mint, Ubuntu, RHEL
  • Aruba/HP/Dell IAP Wireless Controller Common Default Passwords
  • Debian, Mint Ubuntu how to remove package and associated config files
  • Linux Grub not booting the intended kernel solution in Debian, Mint, Ubuntu how to specify which kernel to boot by default
  • QEMU KVM Keyboard Problems Not Working Right Repeating Characters, Ctrl+C Copy and Paste not working right when using PS2 mouse in guests Solution
  • Linux how to compile binary with static sharedobjects embedded instead of dynamic to use on multi-distributions and avoid glibc compatiblity issues
  • /bin/sh: msgfmt: not found error solution on Linux Compilation Ubuntu Debian Mint Centos
  • Mikrotik RouterOS CHR/ISO Basic and Quick Setup Howto Guide
  • qemu 4 compilation options
  • CentOS 7 8 PXEBoot Netinstall Not Working Solution "Pane is dead "new value non-exisetnt xfs filesystem is not valid as a default fs type"
  • CentOS 6 EOL yum repo won't work Error: Cannot find a valid baseurl for repo: base Solution
  • CentOS 7 8 How To Disable SELinux
  • Wordpress How To Add Featured Image To Post in Hueman Theme
  • kdenlive full reset how to erase all config files
  • CentOS 7 8 yum error Trying other mirror. To address this issue please refer to the below wiki article