DNS Resolution fails, and /etc/resolv.conf isn't persistent, how can I force the use of certain DNS servers?
121503
Why is the content of /run/resolvconf/interface/NetworkManager changed every time I reboot?
137938
Is it possible to remove my default gateway from /etc/resolv.conf after successful VPN connection?
16703
No DNS resolution after upgrade from ubuntu 14.04 to 16.04
95959
How to get remote host DNS address from a super-slim host (docker) without ping or bind-utils?
58412
Why is Android refusing to resolve DNS records pointing to internal IP addresses?
131815
How to make NetworkManager add a DNS server at the top of /etc/resolv.conf?
94229
How to resolve hostnames in chroot?
5887
DNS resolv config
18433
How do I fix DNS resolving which doesn't work after upgrading to Ubuntu 13.10 (Saucy)
151725
How can I set up a Dynamic DNS fetching service on Ubuntu Server?
54176
Apache 2 could not bind, address already in use
19398
Clarification of why DNS zone files require NS records
112918
Can't restart nginx, bind() failed (98: Address already in use)
112194
Debian 'ignores' /etc/network/if-pre-up.d/iptables
7884
Why is the network configuration I set in /etc/network/interfaces ignored on Ubuntu 17.10?
83389
How do DNS servers work?
32646
How exactly should I set up DNS to delegate authority for subdomains?