2023年10月10日 · The hostname command in Linux is a command-line utility that allows a user to view or set the system's hostname and domain name. When the system is rebooted, it will revert back to the hostname that is configured in its initialization files.

See hostname(1) on any Linux machine. – user158140. Commented Aug 23, 2015 at 13:22 | Show 2 more ...

Hostname are just pointers; you might assign one specific one to be the hostname referenced by the machine, but it could have multiple. Some services, notable mail and HTTP rely on domain names to know where services should be located and how to get to them.

This is how I do. in .basrhc [distro defaults] source ~/.bashrc_custom # only relevant to this host source ~/.bashrc_common # useful to have on any machine # sync this to any host I manage.

Also you don't need to describe all the details of the device in the hostname. Instead use the hostname as a key into your configuration management database. (You can buy a CMDB, use open source solutions, or refer to an excel spreadsheet). Personally I like device names that are: Short; Easy to spell; Funny

If your hostname (typically configured in /etc/hostname) is ursula, then your FQDN will be computed as ursula.example.com and your DNS domain name as example.com. The second purpose of this entry is obviously that the hostname and the FQDN both resolve to a loopback-attached Internet address.

That is the hostname that will be returned by the gethostname(2) and uname system calls. A system only has one hostname/nodename, but it can have many interfaces. You can point unlimited hostnames (or rather DNS names) to each interface, each ip-address. A many-to-one relationship. The reverse mapping from ip-address to DNS name is one-to-one.

2019年12月5日 · I have a simple home network with Windows 7 machines and Linux machines (Fedora 12 and 13). I'd like to be able to resolve the Linux machine names from the windows machine. For example: -- Windows 7

2010年6月29日 · A server can only have one hostname listed in /etc/hostname. I would list your company's preferred name there. I would list your company's preferred name there. You can, however, point as many different DNS records at the server as you want, either via your /etc/hosts or via your company's DNS server infrastructure.

Edit /etc/hostname is one thing for which you need ssh access inside the container. Otherwise, you can spin up the container with -h option. To set the host and domain names: $ docker run -h foo.bar.baz -i -t ubuntu bash root@foo:/# hostname foo root@foo:/# hostname -d bar.baz root@foo:/# hostname -f foo.bar.baz