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resolv.conf

Redhat 8 Network Manager

March 10, 2022 by Ulysses

In Redhat 8, every time you the Network Manager get’s restarted it overwrites /etc/resolv.conf. To prevent that from hapenning, create a new file called /etc/NetworkManager/conf.d/90-dns-none.conf and add the following lines. Restart Network Manager. Your /etc/resolv.conf should be unchanged.

[main]
dns=none

[main] dns=none

Restart Network Manager

$ systemctl reload NetworkManager

$ systemctl reload NetworkManager

Filed Under: Linux Tagged With: network manager, overwrite, prevent, redhat 8, resolv.conf

Generated by NetworkManager

May 27, 2021 by Ulysses

If your /etc/resolv.conf keeps getting overwritten, take a look at /etc/NetworkManager/NetworkManager.conf. Set DNS to none.

[main]
dns=none

[main] dns=none

Filed Under: Linux Tagged With: dns, generated, networkmanager, overwritten, resolv.conf

Resolv.conf

January 7, 2019 by Ulysses

Resolv.conf is a computer file used by various operating systems as a DNS resolver. The file is in plain text. It’s usually generated by the system administrator or a network program. The file is located in the /etc/ directory and contains the search domain as well a list of nameservers.

Here’s an example of the /etc/resolv.conf file.

search domain.com local.lan
nameserver 1.1.1.1
nameserver 8.8.8.8
nameserver 9.9.9.9

search domain.com local.lan nameserver 1.1.1.1 nameserver 8.8.8.8 nameserver 9.9.9.9

If you have problems resolving domain names, check this file first.

Filed Under: Linux Tagged With: dns, nameservers, network, resolv.conf

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