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Questions tagged [fqdn]

A Fully Qualified Domain Name is a domain name that specifies its exact location in the hierarchy of the Domain Name System.

A Fully Qualified Domain Name is a that specifies its exact location in the hierarchy of the Domain Name System .

A FQDN consists of zero or more s followed by a top-level domain (e.g com, org, net etc.), separated by periods and terminated by a final period which represents the root zone.

Example: meta.stackoverflow.com.

As a special case, a single period . represents the root of the directory tree.

See also: RFC 1035: DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION

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Change hostname permanently in Google Compute Engine instance after reboot

I've created a Google instance in Google Compute Engine with CentOS operating system, then I installed Cpanel. My problem is with WHM/Cpanel, it needs a hostname to be FQDN hostname, specifically for updating Cpanel or it will fail. My problem is…
Bilal SmartClick
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How should I set up FQDN identity for kubernetes pods in local cluster?

This question is relevant to local cluster (kubernetes 1.10+ version, Linux). After creating a StatefulSet to manage several pods, I met a use case that requires setting up FQDN identity for the pods. For instance, I wish to have the first pod with…
jtee
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Setting up fully qualified domain name in Google Compute Instances

Many infrastructure configurations require a fully qualified domain name to set up. How do we set an FQDN on google compute instances? FQDN that can be used internally within the VPC and / or FQDN that can be used externally
Karthik tv
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How to get FQDN of a Target User's (Different) Domain?

How can I get the Fully Qualified Domain Name (FQDN) for a user on a different, trusted domain? Normally, I would ask said user to take any one of the approaches outlined here (e.g. whoami /fqdn or echo %userDNSdomain%), but if this approach isn't…
John Eisbrener
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Limit the no. of requests per second generated by the Dns.BeginGetHostEntry method OR use Task parallel library(TPL)

I have used Dns.BeginGetHostEntry method to get the FQDN for the hosts based on host name (List of the host names is stored in SQL server database). This method (asynchronous) completes the run in less than 30 minutes for nearly 150k records and…
swati gupta
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Mail of PHP, DNS request timed out, and FQDN

I want to make mail() of PHP work in my Windows Server 2012 R2. To this end, I first installed SMTP by following this page. One thing that confuses me is the Full-qualified domain name. WIN-RFELH8GM0KN is what it proposes by default. My server hosts…
SoftTimur
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socket.gethostbyaddr returns unknown host

I want to get the fqdn from the hostname. I am am executiong this command on a linux server: python -c "import sys, socket; sys.stdout.write(socket.gethostbyaddr('')[0])" THis command works well and returns the fqdn from the hostname. But for some…
user3652134
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How do you find the FQDN of the local host?

How do you find the FQDN of the local host in Go? BTW: net.LookupAddr() doesn't work on Windows. So that's not an option.
Kevin Bailey
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Evaluation of a valid FQDN on bash regex

CORRECTED POST @stribizhev is right. You cannot use look-aheads in bash regex. I used grep for that. #!/bin/bash fqdn=$1 result=`echo $fqdn | grep -P '(?=^.{1,254}$)(^(?>(?!\d+\.)[a-zA-Z0-9_\-]{1,63}\.?)+(?:[a-zA-Z]{2,})$)'` if [[ -z "$result"…
FedeKrum
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How to get Fully qualified domain name in unix

Is there any function(C or C++) which returns FQDN(Fully qualified domain name) in UNIX platforms?
user999
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Notepad++, Posix regex, and a URL (regex to get domain)

I have a list of domains, hosts, and URLs. I would like to use either Notepad++'s extended or regex search to go through my list and give me just the domain. My list looks like: fonts.googleapis.com fonts.gstatic.com…
KoreanGuy
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Trying to understand FQDN's

I am struggling to understand the FQDN for servers. At the moment mine is just localhost if i type hostname in to my server terminal it just says localhost. I understand you need a different one from this if you want to set up cpanel, or postfix or…
RSM
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Kerberos Fully qualified domain name

I'm currently looking to configure a Kerberos V realm and wondering about the risk of having systems in my environment that are not in FQDN (Fully Qualified Domain Name). A lot of my search mention to use FQDN but doesn't mention what are the risk…
burgergold
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Regular expression to validate FQDN in C# and Javascript

What is the right regular expression to validate FQDN in C# and Javascript? I have been searching all around and I find different specifications. Which one is correct. Few Examples I found : …
Shetty
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how to find FQDN for any machine name in multi domain scenario

I found this question for getting FQDN of localhost. My question is, is there any way to get the FQDN of machine which is not in same domain as host machine where we query in c#. For eg: on machineA (in Domain A) runs a program to find out FQDN of…
Mahender
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