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On Red Hat derived distributions, the command would usually be: yum install openssh-server On Debian-derived distributions, the command to install an SSH server is usually: aptitude install openssh-server You can try ssh localhost to test if it is running if it respons with something like Connection refused, then it is not running. However, it is not always installed by default.
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The SSH server usually comes up as a readily installable package on most linux distributions. Contents How to Install SSH Server on Linux Startup and Roles of Different sshd processes Configuration File Logging Debugging SSH Connection Problems SSH Client -v Option Log Files Run the Server in Debug Mode Command-Line Options Getting Version Number of the Installed Server How to Install SSH Server on Linux
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