rpm -qa openssh-server

결과 – openssh-server-6.6.1p1-25.el7_2.x86_64

apt-cache show openssh-server | grep Version

결과 –

Version: 1:7.2p2-4ubuntu2.1
Version: 1:7.2p2-4

yum list installed | grep openssh-server

결과 – openssh-server.x86_64                  6.6.1p1-25.el7_2                @updates

ssh -V

결과 – OpenSSH_7.2p2 Ubuntu-4ubuntu2.1, OpenSSL 1.0.2g  1 Mar 2016

ssh -vN localhost -oBatchMode=yes 2>&1 | grep remote

결과 – debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.1