====== SSH ======

Here some useful thing for SSH.

====== SSH cheatsheet ======

<code code>
Task					Command
=========================================================================================
Logging in
=========================================================================================
Connect to remote host			ssh 192.168.1.100
Connect as another User			ssh -l bob 192.168.1.100
Connect on alternate port number	ssh -p 1022 192.168.1.100
Combine all of the above		ssh bob@192.168.1.100:1022
=========================================================================================
SSH Options
=========================================================================================
Connect with alternate cipher		ssh -c blowfish 192.168.1.100
Connect and Forward X traffic		ssh -X 192.168.1.100
Execute command remotely		ssh 192.168.1.100 “tail /var/log/messages”
=========================================================================================
Secure Copy
=========================================================================================
Copy files securely			scp file.tar.gz 192.168.1.100:/home/
Copy files as another user		scp file.tar.gz bob@192.168.1.100:/home/
Copy files with alternate cipher	scp -c blowfish file.tar.gz 192.168.1.100:/home/
Copy files on alternate port number	scp -P 1022 file.tar.gz 192.168.1.100:/home/
Copy files and preserve permissions	scp -p file.tar.gz 192.168.1.100:/home/
Copy recursively			scp -r /home/user 192.168.1.100:/home/
=========================================================================================
Key Based Authentication
=========================================================================================
Create new ssh keys			ssh-keygen -t dsa
Cache ssh authorized_keys		ssh-agent
Add identity to ssh-agent		ssh-add
=========================================================================================
SSH files
=========================================================================================
SSH server configuration		/etc/ssh/sshd_config
SSH client configuration		/etc/ssh/ssh_config
User Private/Public authorized_keys	~/.ssh/id_dsa, ~/.ssh/id_dsa.pub
Public Keyring				~/.ssh/authorized_keys
Known Hosts				~/.ssh/known_hosts
=========================================================================================
Port Forwarding
=========================================================================================
Forward local 8080 to remote host 8080	ssh -L 8080:remote.server.com:80 bob@remote.server.com
Forward remote 1022 to local 22		ssh -R 1022:remote.server.com:22 bob@remote.server.com
</code>