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kujiy
Asked: 2018-04-26 16:46:06 +0800 CST

How to undo NetworkManager changes

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I accidentally modified NetworkManager with the command.

nmcli con modify eno1 ipv4.dns-options 'single-request-reopen timeout:2 ndots:0'

I think the modification hasn't been activated since I haven't restarted the device.

I don't know the previous value of the setting.

How can I undo the modification to the previous one?

linux

1 Answers

  1. Set it to the empty string, which also happens to be the default.

    # nmcli c m eno1 ipv4.dns-options ''

    You will then see that the field has reverted to its default value.

    # nmcli --fields ipv4.dns-options c s eno1
ipv4.dns-options:                       (default)
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