How to Find the FQDN of a Server
The Fully Qualified Domain Name (FQDN) of a server is its complete domain name, including the hostname and domain extension. Finding the FQDN can be useful in various situations, such as troubleshooting network issues, configuring servers, or setting up secure connections. In this article, we will discuss several methods to find the FQDN of a server.
Method 1: Using the Hostname Command
One of the simplest ways to find the FQDN is by using the hostname command. Open a terminal or command prompt and type “hostname -f” or “hostname –fqdn” and hit enter. The FQDN of the server will be displayed.
Method 2: Checking the Network Configuration
You can also find the FQDN by checking the network configuration. In Linux-based systems, navigate to the /etc/hostname file and open it with a text editor. The FQDN will be listed in this file. On Windows, open the Command Prompt and type “ipconfig /all” to display the network configuration, including the FQDN.
Method 3: Using the nslookup Command
The nslookup command can be used to find the FQDN by querying DNS servers. Open a terminal or command prompt and type “nslookup” followed by the IP address of the server. The FQDN will be displayed in the “Name” field of the output.
Method 4: Checking the Server’s Control Panel
If you have access to the server’s control panel, such as cPanel or Plesk, you can usually find the FQDN listed under server information or system details.
FAQs:
1. What is the difference between FQDN and hostname?
– The hostname is the name that identifies the server, while the FQDN includes the hostname and the domain name.
2. Can I find the FQDN using the IP address?
– Yes, you can use the nslookup command mentioned in Method 3 to find the FQDN using the IP address.
3. Is the FQDN case-sensitive?
– No, the FQDN is not case-sensitive. It can be written in uppercase or lowercase letters.
4. Can I find the FQDN of a remote server?
– Yes, you can use the nslookup command mentioned in Method 3 to find the FQDN of a remote server.
5. Why is finding the FQDN important?
– Finding the FQDN is important for configuring servers, troubleshooting network issues, setting up secure connections, and more.
6. Can I find the FQDN using a web-based tool?
– Yes, there are several web-based tools available that can find the FQDN of a server by entering its IP address.
7. Is the FQDN the same as the domain name?
– No, the FQDN includes both the hostname and the domain name, while the domain name refers to the name of the network domain.
8. Can the FQDN change over time?
– Yes, the FQDN can change if the server is moved to a different domain or if the hostname is modified.
By following the methods mentioned above, you can easily find the FQDN of a server. Whether you are a system administrator or simply curious about server configuration, understanding the FQDN can be a valuable skill.