I just want to set to default
/etc/network/interfaces but I can't because I get a
Permission denied error when I try to write to it:
auto lo iface lo inet loopback
migrated from stackoverflow.com Oct 5 '12 at 13:46
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In Ubuntu or Linux in general, files inside root
Since you're trying to write to
Open a terminal with Ctrl+Alt+T and run:
This will open Gedit, you can then make the necessary changes to the file.
Note: Since Gedit is a graphical application, it is recommended to run