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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
to
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.
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.
Below Solution Worked in my box (Fedora release 25)
/etc/sysconfig/network-scripts/ifcfg-eno1
Added below entries to above file at the bottom.
PEERDNS=NO
DNS1=8.8.8.8
DNS2=8.8.4.4
And restarted network (service network restart) to ensure that the entries are not modified in /et/resolv.conf
I solved this by going to network manager and editing my connection in IPv4 tab, sliding automatic to manual for DNS and then setting server address to the one I need. (GNOME) Or I could edit resolve.conf and then change its attribute with option i, like `chattr +i resolv.conf . Therefore stopping DHCP from editing it again. I observed that in xfce4 - network manager we have to change the DHCP in IPv4 to automatic address but manual DNS in options.
