Recently while tinkering with cloud server firewall settings, I accidentally misconfigured the rules and got locked out of SSH. The error code was as follows:
ssh_exchange_identification: read: Connection reset by peer
Adding the -v parameter shows detailed connection info:
ssh -v 192.168.0.101
Solution: Connect to the Host via VNC or Similar
vi /etc/hosts.allow
Add the following line:
sshd: ALL ##Allow all IP hosts to connect to this machine
Restart SSH:
service sshd restart