Linux to Linux Key Based SSH
Wednesday, March 5th, 2008
- Protect SSH Access With hosts files and a proper sshd_config
- Preventing Brute Force Attacks With Fail2ban
Ssh (Secure Shell) is a program to log into another computer over a network, to execute commands in a remote machine, and to move files from one machine to another. It provides strong authentication and secure communications over unsecure channels. It is intended as a replacement for rlogin, rsh, and rcp.Additionally, ssh provides secure X connections and secure forwarding of arbitrary TCP connections. Ssh currently runs on UNIX or related systems, plus under OS/2. Ports have been successful to all “mainstream” UNIX systems.
SSH is either installed by default, or you can install it on your distribution from their repositories.
In Suse, it is on the DVD/CD. Make sure that’s in your drive and in turned on in your sources then zypper in ssh. In Ubuntu, to install ssh server do an apt-get install ssh.