22

I installed Windows 10 Anniversary update and the Linux subsystem. When running anything with sudo it takes ages and then I get this error message:

sudo: unable to resolve host MYMACHINE

How to get rid of this and make sudo fast?

42

You have to edit /etc/hosts while superuser and add your machine name after the first line with localhost

127.0.0.1        localhost MYMACHINE

This will make the system not try to resolve the hostname from DNS.

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  • Yup, that worked for me. – pooter03 Aug 3 '16 at 14:21
3

You can also remove /etc/hosts and restart bash to generate a version that contains your hostname. For me, it created a line with my computer name and my fully qualified name 127.0.0.1 fbc-2000.domain.local fbc-2000

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