39.2 The ssh Program
Using the ssh program, it is possible to log in to remote systems and work
interactively. It replaces both telnet and rlogin. The slogin program is
just a symbolic link pointing to ssh. For example, log in to the host
sun with the command
The host then prompts for the password on sun.
After successful authentication, you can work on the remote command line or
use interactive applications, such as YaST. If the local username is
different from the remote username, you can log in using a different login
ssh -l augustine sun
Furthermore, ssh offers the possibility to run commands on remote systems,
as known from rsh. In the following example, run the command
uptime on the host sun and create a
directory with the name tmp. The program output is
displayed on the local terminal of the host earth.
ssh otherplanet "uptime; mkdir tmp"
1:21pm up 2:17, 9 users, load average: 0.15, 0.04, 0.02
Quotation marks are necessary here to send both instructions with one
command. It is only by doing this that the second command is
executed on sun.