warning: hostname no-reverse-dns-configured.com does not resolve to address
101314
Postfix warning: hostname [unknown host] does not resolve to address [unknown ip]
109723
Why does my hostname appear with the address 127.0.1.1 rather than 127.0.0.1 in /etc/hosts?
103740
"ping: unknown host google.com" but IPs works fine
32237
Why I do get error 101? How is my DNS involved?
151725
How can I set up a Dynamic DNS fetching service on Ubuntu Server?
139340
How to resolve a hostname via nsswitch?
158046
resolving DNS via Tor
147540
FreeIPA : Installer not resolving domain name from hosts file
49377
Editing /etc/hosts and /etc/sysconfig/network doesn't chane the hostname
123596
Why does the registered domain name “localtest.me” resolve to 127.0.0.1?
18603
What does "The provided host name is not valid for this server" mean?
141141
How does a Reverse DNS lookup work with regards to spam filters?
81013
DNS not resolving on Mac OS X
60147
hostname -I spamming more than one IP address
88171
New alert keeps showing up: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001
16941
How can I resolve .local addresses in Windows?
121968
nslookup finds ip for a hostname in .local domain, but ping does not