Question

8

how do I refresh my wired ethernet connection from command line?

rated 0 times [ 8] [ 0] / answers: 1 / hits: 44120 / 2 Years ago, tue, september 6, 2022, 11:37:43

What is the command line equivalent of unchecking "Enable Networking" (disabling networking) and then re-enabling?

In my environment, there are multiple networks which require me to physically move my network cable. Sometimes my connection does not refresh properly, so I disable/re-enable networking to refresh my connection. Being able to do this from the command line would be much more efficient for me.

I'm using 12.04 LTS.

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ongdiligenc

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answered 2 Years ago impisaso · Accepted Answer

I'd use the nmcli commands for that purpose:

nmcli nm enable false && nmcli nm enable true

man page:

DESCRIPTION

       nmcli is a command‐line tool for controlling NetworkManager and report‐

       ing on its status.  It is not meant as a full replacement for nm‐applet

       or other similar clients but as a complementary utility to those pro‐

       grams.  The main usage for nmcli is on servers, headless machines or

       for power users who prefer the command line.



       [...]



  nm     NetworkManager

          Use this object to inquire and change state of NetworkManager.



         [...]



          enable [true|false]

                 Get networking‐enabled status or enable/disable network‐

                 ing by NetworkManager.  All interfaces managed by Net‐

                 workManager are deactivated when networking has been dis‐

                 abled.

                 Reference to D‐Bus:

                 interface: org.freedesktop.NetworkManager

                 method:    Enable

                 arguments: TRUE or FALSE