Today after I upgraded some new packages for my server, some new updates modified my /dev/null. After a hard reboot, SSHD stopped working without any error message.

To fix your sshd, simply login to your server via lxadmin or cpanel.

Go to the remote command section and enter the following command:

ls -al /dev/null

Output:

crw-rw-rw- 1 root root 1, 3 Apr 13 14:36 /dev/null

Your /dev/null should look like above, otherwise please follow the steps to repair your sshd.

rm /dev/null

mknod /dev/null c 1 3

chmod 666 /dev/null

/etc/init.d/ssh start

SSHD should be running now.

Have fun.

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