FQDN and non FQDN - Check Point CheckMates If an object is both a domain (non-FQDN) and an FQDN, you would need to decide which mode to use based on your specific needs FQDN mode is generally more accurate and faster, while non-FQDN mode provides broader matching capabilities but may introduce latency due to reverse DNS lookups
Setting the hostname: FQDN or short name? - Server Fault Setup prompts you to supply a host name for this computer, either as a fully-qualified domain name (FQDN) in the format hostname domainname or as a short host name in the format hostname The Debian reference says the hostname should not use the FQDN: 3 5 5 The hostname The kernel maintains the system hostname
Why should I use an FQDN instead of the servers IP address? Using a FQDN instead of an IP address means that, if you were to migrate your service to a server with a different IP address, you would be able to simply change the record in DNS rather than try and find everywhere that the IP address is used This is especially useful when you have many servers and services configured by multiple individuals
Definition of Fully qualified domain name - Server Fault The meaning, rather than the definition, of FQDN can be made clear by considering its antonym: the non-fully qualified domain name To be fully qualified means you're specifying all domain labels up to the top level, and you could in that case append a final dot ( ) to indicate that you've done so
ssl certificate - What is the role of Subject Name (SN) Subject . . . Browser vendors expected the FQDN of a host to be entered in the certificate as the Common Name (look at this site's certificate and you'll see that the CN is serverfault com) However, entering the FQDN of a server in the CN is a bit of a hack - what if we enter the server's IP address into the browser instead?
Resolve DNS for short name of the Active Directory domain The controller FQDN and short name is different than what you write Domain:contoso com, ping contoso com = ip of DC, nslookup ipDC=FQDN, ex; dc contoso com, ping dc (short name) = same result as ping dc contoso com IF and only if DNS suffix is on your NIC