40 Set Domain Name In Debian New

When called with one argument or with the file option the commands set the host name or the nis yp domain name.
Set domain name in debian. The resolver is a set of functions in the c library that provide access to the internet domain name system dns the functions are configured to check entries in the etc hosts file or several dns name servers or to use the host s database of network information service nis. Edit etc hostname for permanent change. You can add instead a domain alias to etc hosts.
It is recommended to use a fully qualified domain name fqdn as the system hostname. Dear list i have become confused about the domain name handling in debian. Hostname uses the sethostname 2 function while all of the three domainname ypdomainname and nisdomainname use setdomainname 2.
Note that this is effective only until the next reboot. Sudo hostnamectl set hostname deb10 cyberciti biz. First set the new hostname using the hostnamectl set hostname command followed by the desired hostname and then update the etc hosts file with the new hostname.
Open the etc hosts to change the domain name and fqdn. A similar question has been asked on serverfault. Open the etc hostname to change the hostname.
For setting the domain name in debian you can edit etc hostname for a host hulefu in domain somewhere co uk you simply set etc hostname to hulefu somewhere co uk this should work for most other linux distributions too. If you want to set domain name be sure set fqdn fully qualyfied domain name. The etc resolv conf is the main configuration file for the dns name resolver library.
When you use redhat base systems linux uses etc sysconfig network file and you should set variable hostname to fqdn when you use fqdn linux itself determines domain name. Note that this is effective only until the next reboot. Change the domain and fqdn in the second line in the hosts file.