This makes no freakin sense to me, and it’s driving me bonkers. Censored for work purposes obv.
Hosts file:
1.1.1.1 site.com
$ping site.com
PING site.com (1.1.1.1)
^C
$ping http://site.com
ping: unknown host http://site.com
What?? Ping, You JUST RESOLVED site.com, why can’t you resolve it now??
Why does the addition of the protocol break DNS resolution?
It’s CentOS 6.10, quite old…
/etc/nsswitch has:
hosts: files dns
Any pointers would be much appreciated.
http://site.com isn’t a valid host name, DNS won’t resolve it. DNS does not understand protocol, it’s taking your whole query as the hostname
Ah thanks, that’s my problem, it’s me.