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linux_installation [2017/01/31 06:08] jtkorblinux_installation [2017/01/31 06:35] (current) – [Useful Commands] jtkorb
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 ===== Useful Commands ===== ===== Useful Commands =====
-  * ''nmcli d[evice]'' to list the network device names ''nmcli c[onnection]'' also works. +  * To list network device names (choose one): 
-  * ''nmcli d[device] show enp4s0'' to show details of device enp4s0, including DNS servers. + 
-  * Set DNS servers by editing /etc/network/interfaces and using this line: ''dns-nameservers 208.67.222.222 208.67.220.220'' (for [[https://www.lifewire.com/free-and-public-dns-servers-2626062|OpenDNS]] servers).+  nmcli device 
 +  nmcli connection 
 + 
 +  * To show details of device ''enp4s0'', including DNS servers
 + 
 +  nmcli device show enp4s0 
 + 
 +  * Set [[https://www.lifewire.com/free-and-public-dns-servers-2626062|DNS servers]] by editing /etc/network/interfaces. 
  
 ===== Security Considerations ===== ===== Security Considerations =====
   * Install [[http://www.fail2ban.org/wiki/index.php/Main_Page|Fail2ban]].   * Install [[http://www.fail2ban.org/wiki/index.php/Main_Page|Fail2ban]].
   * Change the ssh port.  Nice instructions at [[https://www.godaddy.com/help/changing-the-ssh-port-for-your-linux-server-7306|GoDaddy]].  Don't forget to update the router firewall port mapping.   * Change the ssh port.  Nice instructions at [[https://www.godaddy.com/help/changing-the-ssh-port-for-your-linux-server-7306|GoDaddy]].  Don't forget to update the router firewall port mapping.
linux_installation.1485871716.txt.gz · Last modified: 2017/01/31 06:08 by jtkorb