dns - Trying to understand FQDN's -


i struggling understand fqdn servers.

at moment mine localhost if type hostname in server terminal says localhost.

i understand need different 1 if want set cpanel, or postfix or really.

as know comprised of 2 parts:

hostname.domainname

can domain name made up, or have 1 of domains set use on server?

and host name can anything, or has servername? , have set sub domain of domain?

i hope understand issues.

thanks

try typing

hostname --fqdn

fqdn means qualified domain name, composed of 2 parts:

  • your hostname
  • the domain name hostname located.

it can easy mycomputername.myfamilydomainname.tld, or complex cor-th3-1.par.fr.eu.mynetwork.net.

all of can technically made up, though, if use example, google.com local domain, local resolver may use info , believe you're in google.com dns zone, may have problems resolving entries in google.com dns zone.

more info at: http://en.wikipedia.org/wiki/hostname


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