ssh client and ssh server sed -i "/sshd/d" /etc/passwd sed -i "/sshd/d" /etc/group echo "sshd:x:13:13:sshd::/bin/false" >> /etc/passwd echo "sshd:x:13:" >> /etc/group /etc/ssh/ssh_host*key* [ -e /etc/ssh/ssh_host_key ] || ssh-keygen -t rsa1 -f /etc/ssh/ssh_host_key -N "" [ -e /etc/ssh/ssh_host_dsa_key ] || ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key -N "" [ -e /etc/ssh/ssh_host_rsa_key ] || ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key -N "" sed -i "/sshd/d" /etc/passwd sed -i "/sshd/d" /etc/group