What should my fqdn be

I would prescribe running "ddclient - troubleshoot - verbose - noquiet - power" and check the yield. It should let you know all that you have to know to make sense of what's happening. You can use Markdown to format your question. For more examples see the Markdown Cheatsheet. Log in to Ask a Question.

Question Title. Each label has to have either a letter or a number at the beginning. The fully qualified domain name consists of three or more labels: The top level domain , the domain names , optional subdomains , and the host name. This often means that only the host name is given. FQDN stands for fully qualified domain name. The FQDN represents the absolute address of the internet presence. The FQDN contains the host name and domain, including the top level domain, and can be uniquely assigned to an IP address.

The further right a label is located, the higher it lies in the tree diagram representation of the hierarchy. It consists of a blank area, and so is only expressed by a period, or dot. To resolve the address, the name server searches through the directory of the given TLD for the domain on the next hierarchy level. Once this is identified, the host whose host name is listed in the lowest label is contacted to access the given site. The root label after the dot remains empty.

These are different than generic TLDs like. Their number is only limited by the maximum allowed total length of characters for the FQDN. Register a domain name.

Create a free Team What is Teams? Learn more. Ask Question. Asked 5 years, 4 months ago. Active 2 years, 4 months ago. Viewed 41k times. Improve this question. Peter Mortensen 2, 5 5 gold badges 23 23 silver badges 24 24 bronze badges. Emil Rowland Emil Rowland 1 1 gold badge 4 4 silver badges 8 8 bronze badges. It has always been a recommendation in RFCs, for example that on application level one only deals with hostnames. However, some applications won't even work unless with IP.

Nevertheless, I myself am guilty to often contact my devices by IP instead of hostname - but that bad habit will certainly end as soon as we have fully migrated to IPv6 : — Hagen von Eitzen.

HagenvonEitzen Sure you will never, ever, type out ? Add a comment. Active Oldest Votes. Improve this answer. Joshua Griffiths Joshua Griffiths 2, 13 13 silver badges 18 18 bronze badges. Especially if the knowledge of that IP address is external too, like if customers or partners or vendors use it. Imagine if instead of stackoverflow. The same applies to web addresses. For example, www. In this case, www is the name of the host in the indiana.

The host is contacted and you receive a login prompt. If you are using only the hostname without the domain information to connect to a server, the application you're using may not be able to resolve the hostname.