• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer navigation

The Geek Diary

  • OS
    • Linux
    • CentOS/RHEL
    • VCS
  • Interview Questions
  • Database
    • MariaDB
  • DevOps
    • Docker
    • Shell Scripting
  • Big Data
    • Hadoop
    • Cloudera
    • Hortonworks HDP

CentOS / RHEL : How to make iptable rules persist across reboots

by admin

Sometimes after a reboot, iptables rules are not available as they are not saved to be persistent. The post below describes steps to save iptables persistently.

Making iptable rules persistent

1. Add rules to the iptables according to your requirment.

2. Verify that all the rules are present using the command “iptables -L“.

# iptables -L

3. Save the iptables.

# service iptables save

4. Restart the service.

# service iptables restart

5. Making service permanently ON using chkconfig.

# chkconfig iptables on

Troubleshooting

If there is any error while restarting the service then follow this steps below.

1. Afrer saving the iptable rules, restore the SELinux context of iptables file.

# restorecon -Rv  /etc/sysconfig/iptables

2. Restart the iptables service.

# service iptables restart

3. Make the service on persistently using chkconfig.

# chkconfig iptables on

Filed Under: Linux

Some more articles you might also be interested in …

  1. nslookup: command not found
  2. cdk: A CLI for AWS Cloud Development Kit (CDK)
  3. lpq Command Examples in Linux
  4. restorecon: command not found
  5. nslookup Command Examples in Linux
  6. exercism: Download and solve problems from the command-line
  7. sxiv Command Examples in Linux
  8. Understanding the Network interface configuration file /etc/sysconfig/network-scripts/ifcfg-eth#
  9. a2enmod: command not found
  10. “git svn” Command Examples

You May Also Like

Primary Sidebar

Recent Posts

  • Vanilla OS 2 Released: A New Era for Linux Enthusiasts
  • mk Command Examples
  • mixxx Command Examples
  • mix Command Examples

© 2025 · The Geek Diary

  • Archives
  • Contact Us
  • Copyright