sshd daemon not running ubuntu 12.04

Question

The sshd daemon is not running on my machine (Ubuntu 12.04). I have repeatedly re-installed the openssh server and rebooted.

I get no output to this command:

ps -A | grep sshd

Any help would be greatly appreciated.

Solution

Try removing it completely sudo apt-get purge openssh-server

And remove config dir mv /etc/ssh /etc/ssh_old

Then sudo mkdir /etc/ssh

Then install it again sudo apt-get install openssh-server

Comments

[Eliah Kagan]

What happens when you run sudo start ssh?

[Cole Freniere]

ssh start/running, process 16431

[AmitNarang]

there is no need to purge openssh-server. After reinstallig sshd daemon will not run. check the permission of /var/run/sshd. It must be owned by root and not group or world writable. change permission chmod 755 /var/run/sshd. It will work .