setting up openssh on SuSE 13.2

1. configure ssh daemon at:

/etc/ssh/sshd_config

2. to enable ssh server, do the following as root:

systemctl enable sshd
systemctl start sshd

3. to restart sshd after a change to sshd_config:

rcsshd restart

4. can check if a specific port is open:

nmap -p PORT_NUMBER IP_ADDR

5. generate private and public keys (id_rsa, id_rsa.pub) using the following:

ssh-keygen

6. to upload the public key to the server:

ssh-copy-id name@ssh.server.org

using Cygwin in windows 8.1, need to run:

chgrp Users ~/.ssh/id_rsa
chmod 600 ~/.ssh/id_rsa