Ubiquiti AirOS – “test” changes from command line



The following is a method to recover from a command that may inadvertenly make a radio go offline.

The idea is to launch a process in the background that sleeps for 5 minutes and then reboots the radio, so any changes not saved will be reverted. If the changes were successful, you’ll just need to log back in and kill the background process to keep the device from rebooting.

This can be helpful if your changing networking settings using ifconfig, trying to change routes, or something went wrong while trying to apply a system.cfg setting.

Commands

sleep 300 && reboot &

Execute whatever command you need to. i.e.

ifconfig 192.168.1.100

If your command worked you can log back into the device and search for the process id of the sleep command and kill it so the radio doesn’t reboot.

ps | grep sleep

Example output

2XC.v8.5.12# ps | grep sleep
412 admin 1636 S sleep 500
414 admin 1640 S grep sleep
2XC.v8.5.12#

Kill the pid

kill 412

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