linux - How to change my DNS server provider permanently?

I want to change my DNS nameserver to GoogleDNS on fedora 25. I edited /etc/resolv.conf from

search fritz.box
nameserver 192.168.1.1

nameserver 8.8.8.8
nameserver 8.8.8.4

But if I reconnect to router, the file will revert back to my router's DNS nameserver. I followed this https://developers.google.com/speed/public-dns/docs/using this link's tutorial for debian part. But it isn't working.

Can I change nameserver to google's DNS permanently?

P.S: I do not have access to the router.

Answer

The issue is you are getting the DNS server from the router and overriding what you set. To fix this, you must edit /etc/dhclient.conf.

Add this line to make sure that it does not override the default DNS servers:

supersede domain-name-servers 8.8.8.8, 8.8.4.4;

Alternatively, you can instruct the DHCP client to not request a DNS server address.

More information can be found with the man dhclient.conf command.

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