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host command in Linux system is used for DNS (Domain Name System) lookup operations. In simple words, this command is used to find the IP address of a particular domain name or if you want to find out the domain name of a particular IP address the host command becomes handy.
How does hostname command work?
The hostname command is used to show or set a computer’s host name and domain name. A host name is a name that is assigned to a host (i.e., a computer connected to the network) that uniquely identifies it on a network and thus allows it to be addressed without using its full IP address. …
How define hostname in Linux?
The procedure to change the computer name on Ubuntu Linux:
- Type the following command to edit /etc/hostname using nano or vi text editor: sudo nano /etc/hostname. Delete the old name and setup new name.
- Next Edit the /etc/hosts file: sudo nano /etc/hosts. …
- Reboot the system to changes take effect: sudo reboot.
19 февр. 2021 г.
