SSH Connection: Wait long after entering username – ssh password prompt delay
When I make ssh connection I get long wait just after entering username. It's most likely that ssh daemon is set up to do a DNS reverse-lookup on the host that's connecting. So, sshd try to find reverse DNS record for a while before prompting you password. If you do not want to wait, you can either add your client's ip and hostname information to /etc/hosts file on linux or you can disable reverse dns lookup in /etc/ssh/sshd_config 1- Open your terminal window 2- Edit /etc/ssh/sshd_config 3- Add UseDNS no at the end 4- Restart your ssh daemon