34.2 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
ssh sun. 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 name with ssh -l augustine
ssh [email protected].
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 jupiter.
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