2

I have an iptables script I want to run at boot.
I created /etc/rc.d/rc.local file with CHMOD 755 permissions which have worked on previous operating systems.
Root owns the file.
I also have #!/bin/bash as the first line.
I have also tried #!/bin/sh
I have also added a 5 second sleep thinking maybe something needs to finish.
I have temporarily disabled selinux to eliminate that as a cause.
The rc.local file looks like this:

#!/bin/bash  
sleep 5  
/usr/local/sbin/miniptables 

The miniptables file is also owned by root, chmod 755, starts with #!/bin/bash, contains some iptables commands, and has worked on hundreds of servers.
What am I missing?
Thanks in advance.

  • 1
    Try to avoid home-grown firewall scripts, if you can, and just use firewalld. – Michael Hampton Dec 28 '15 at 22:07
2

The /etc/rc.d/rc.local file doesn't have execute permissions by default, so set it executable:

# chmod +x /etc/rc.d/rc.local

Also, the file is not run unless the systemd rc-local service is enabled, but it is disabled by default. So you need to enable (and start) it:

# systemctl start rc-local
# systemctl enable rc-local

For systemd systems, it is usually better to write your own systemd service.

  • It would be helpful if you offered explanations of what those commands do, instead of encouraging blind copy/paste sysadmin practices. – EEAA Dec 28 '15 at 21:59
  • unfortunately your suggestion did not work. I forgot to mention that I checked rc-local service as well. The execution bit was already set per chmod 755 but I did your command anyway. Here is the output: systemctl status rc-local ... Loaded: loaded (/usr/lib/systemd/system/rc-local.service; static; vendor preset: disabled) Active: active (exited) since Mon 2015-12-28 14:58:17 CST; 1h 0min ago ... systemctl is-enabled rc-local static systemctl enable rc-local The unit files have no [Install] section. They are not meant to be enabled using systemctl. ... – xivix Dec 28 '15 at 22:08
  • Add "logger test" call to /etc/rc.local and after reboot check journalctl if test record was added. – e42d3 Dec 28 '15 at 22:10
  • Added logger test and now it is working and I don't know why :( Thanks though – xivix Dec 28 '15 at 22:26
0

Create your script: vim /etc/rc.d/rc.local

Example script:

#!/bin/bash
echo "test script"

Make script executable: chmod +x /etc/rc.d/rc.local
Fix SELinux context: restorecon -v /etc/rc.d/rc.local

Enable and start service:

systemctl enable rc-local.service
systemctl start rc-local.service
systemctl status rc-local.service
  • What are you supposed to do while vim'ing? What does the rest of this do and why? – chicks Jul 24 '17 at 14:55

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