Currently, when I try to reload SSH via
sudo service ssh force-reload, I get
ssh.service is not active, cannot reload.
Currently, when I try to ssh to pwnable.kr, I get:
ssh: connect to host pwnable.kr port 2222: Connection refused.
I had an issue of
Write Failed: broken pipe when SSHing before, so I followed StackOverflow advice and changed
ServerAliveCountMax 5 all to no avail.
Therefore, I suspected SSH broke because of an IP conflict, because it didn't work on my Kali Linux VM but it did work on my Ubuntu.
Therefore, I followed other advice of:
sudo rm -f /etc/udev/rules.d/70-persistent-net.rules; sudo reboot;
And here is where I am now. Now I've broken SSH on my Ubuntu and Kali Linux VM.