Installing a SSH server on Ubuntu
- An ssh server allows you to remotely access your machine.
- You'll have access to the remote console (equivalent to telnet, but secure) and the transfer of files (equivalent to ftp, but also security).
Installation
- The easiest way is to use: sudo aptitude install ssh
- You can now connect remotely in a secure way.
- Use the login/password of users reported in Ubuntu.
Connection
- You can use ssh command line
- You can also access it from Windows:
- with Putty for the command line
- with WinSCP to transfer files
SSH through a proxy
- First install the package connect-proxy:
sudo aptitude install connect-proxy
- Edit /etc/ssh/ssh_config to enable SSH via proxy:
- sudo echo 'ProxyCommand /usr/bin/connect-proxy -4 -S monproxy.domaine.com:port %h %p' >> /etc/ssh/ssh_config
- Be sure to replace "proxy.domaine.com" and "port" with the name of your proxy and port number.
Additional tip
To run the ssh server on another port which the port 22 standard:- 1. Open the configuration file: sudo gedit/etc/ssh/sshd_config
- 2. Locate the line Port 22 and replace by the value of your choice (eg port 741)
- 3. Restart the ssh server: sudo/etc/init.d/ssh restart
This little trick ensures that the server is identified by a scan of IP address ranges, and thus reduce some risks.
