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deb9:ssh [2022/08/15 12:19] – [Access through Relais Hosts] Bernard Condraudeb9:ssh [2024/11/14 14:01] (current) – [Settings] Bernard Condrau
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 ====== SSH Client and Server ====== ====== SSH Client and Server ======
 To login to any machine with SSH, you need to install the ssh server. The client is installed on Debian by default. Terminology used is "Server" for the remote machine to get access to, and "Host" for the local machine which needs access to a server. This guide was updated 8<sup>th</sup> August 2020. To login to any machine with SSH, you need to install the ssh server. The client is installed on Debian by default. Terminology used is "Server" for the remote machine to get access to, and "Host" for the local machine which needs access to a server. This guide was updated 8<sup>th</sup> August 2020.
 +
 +<color red>Need to update: Iapetus, Pandora</color>
  
 ===== Linux Server ===== ===== Linux Server =====
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 PrintLastLog yes PrintLastLog yes
 TCPKeepAlive yes</code> TCPKeepAlive yes</code>
-  * Restart the SSH server:<code>sudo /etc/init.d/ssh restart</code>+  * Restart the SSH server:<code>sudo service ssh restart</code>
  
 ===== Linux Host ===== ===== Linux Host =====
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   * I have restricted SSH access to machines with known IP addresses, so find from where (relais machine) you connect through SSH<code>$ who</code>   * I have restricted SSH access to machines with known IP addresses, so find from where (relais machine) you connect through SSH<code>$ who</code>
   * Add or modify the restriction to your ''authorized_keys'' file<code>restrict,from="aaa.bbb.ccc.ddd,eee.fff/16"</code>   * Add or modify the restriction to your ''authorized_keys'' file<code>restrict,from="aaa.bbb.ccc.ddd,eee.fff/16"</code>
-  * You also need to modify the ping command to make sure it travels through the same SSH connection +  * See [[deb10:backuppc|BackupPC]] how to setup a BackupPC host behind a relais host
 ==== Links ==== ==== Links ====
   * [[https://patrickmn.com/aside/how-to-keep-alive-ssh-sessions/#:~:text=On%20Linux%20(ssh)&text=These%20settings%20will%20make%20the,to%20have%20been%20discarded%20anyway.|How to Keep Alive SSH Sessions]]   * [[https://patrickmn.com/aside/how-to-keep-alive-ssh-sessions/#:~:text=On%20Linux%20(ssh)&text=These%20settings%20will%20make%20the,to%20have%20been%20discarded%20anyway.|How to Keep Alive SSH Sessions]]
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   * [[https://www.thethingsnetwork.org/docs/gateways/kerlink/reverse-ssh/|Reverse SSH]]   * [[https://www.thethingsnetwork.org/docs/gateways/kerlink/reverse-ssh/|Reverse SSH]]
   * [[http://man.openbsd.org/sshd_config#:~:text=The%20client%20alive%20mechanism%20is,disconnected%20after%20approximately%2045%20seconds.|sshd_config — OpenSSH daemon configuration file]]   * [[http://man.openbsd.org/sshd_config#:~:text=The%20client%20alive%20mechanism%20is,disconnected%20after%20approximately%2045%20seconds.|sshd_config — OpenSSH daemon configuration file]]
 +===== Copy file from remote host =====
 +  * ''$ rsync -a -e "ssh -p 50922" --info=progress2 bco@192.168.1.13:/home/bco/site-backup/site*.zip /home/bco/''
 +  * [[https://linuxize.com/post/how-to-transfer-files-with-rsync-over-ssh/|How to Transfer Files with Rsync over SSH]]
 ===== X Client ===== ===== X Client =====
 ==== Debian ==== ==== Debian ====

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