Hi all, I want to share and need suggestion , what i have done to my cloud server at DO. My Objective : to change the default port ssh form 22 to 7777 Task ( below is what i have done ) ------------------------------------ #--1 ADD and CONFIGURE USER useradd iloveyou groupadd weloveyou ... vi /etc/ssh/sshd_config #--2 Modification part Port 7777 ClientAliveInterval 900 ClientAliveCountMax 0 ChallengeResponseAuthentication yes GSSAPIAuthentication no PermitRootLogin no AllowUsers iloveyou PermitEmptyPasswords no # --FINISH /etc/init.d/sshd restart exit connect : ssh iloveyou@10.129.xxx.xx -p7777 The Result / Impact : i cant connect to my server in the DO cloud :(. Below the log: ---------------- 1. Connect via https://cloud.digitalocean.com/droplet/console/ Failed to establish a connection to the console. Please reload. 2.Connect mac console my_mac>$ ssh webmaster@10.129.xxx.xx -p7777 ssh: connect to host 10.129.xxx.xx port 7777: Operation timed out Note : my iptables still default from DO image, and i'm not yet configure :) thx