Forum Discussion
ppuru
4 years agoNeighbour
Telus Internet DNS issue
My Telus Internet connection loses DNS configuration every once in a while. Over a 3 month period, it used to fail DNS resolution perhaps once a month or less. This week though, it has happened 4 tim...
Xenu
4 years agoNeighbour
A couple things to try in the CLI if you haven't...
If Windows: try 'ipconfig /all | more' .. this lets you page through the network settings and will show your system dns severs, which may be different than the ones you are testing with.
Another thing to try in the windows CLI is 'ipconfig /flushdns' which clears out the DNS cache... this sometimes resolves similar issues but doesn't always help.
In unix like environements, DNS servers are usually specified in the '/etc/resolv.conf' file which is typically managed by other system processes (DHCP clients or netplan etc). The 'dig' command is useful for troubleshooting DNS issues.
For my personal set up, I configured my gateway router to act as a cacheing DNS server which forwards requests to a bunch of public DNSs like 8.8.8.8 etc. Everything inside uses the gateway as their DNS server (with 8.8.8.8 as secondary, just in case :-). My windows desktop gets confused once in a while when I mess with network or servers but everythiing else seems okay..