Introduction to OpenSSH

ssh ubuntu@10.0.3.186
exit
scp stuff.txt ubuntu@10.0.3.186:/home/ubuntu	
ssh -X studio@192.168.0.100
gedit
exit
===
ls -a
cd .ssh
ssh-keygen	
ls
cat id_rsa.pub
ssh ubuntu@10.0.3.40
nano authorized_keys
exit
ssh ubuntu@10.0.3.40
exit
eval "$(ssh-agent -s)"
ssh-add ~/.ssh/id_rsa
ssh ubuntu@10.0.3.40

===========================
Using SSH Debugging Tools

ssh -v ubuntu@10.0.3.19
exit
wireshark
	lxcbr0
	start
ssh ubuntu@10.0.3.238
sudo cat /var/log/auth.log | grep sshd 	
sudo /usr/sbin/sshd -d -p 2020		
ssh -p 2020 ubuntu@10.0.3.234

===========================
Basic SSH troubleshooting

sudo systemctl status sshd
ssh ubuntu@10.0.3.235
ping 10.0.3.234
exit
sudo tcpdump -n -i wlan1 tcp port 22 and host 192.168.0.101
netstat -rn	

===========================
Common SSH failure scenarios
less /etc/ssh/sshd_conf
	TCPKeepalived yes

cd ~/.ssh
ls -l
chmod 600 id_rsa
cd /etc/ssh
ls -l
sudo nano /etc/network/interfaces
	mtu 576
ssh-keygen -f "/home/dbclinton/.ssh/known_hosts" -R 10.0.3.29