یک جورایی میشه گفت host name همون اسم کامپیوتر هستش
مثلا من اسم host name کامپیوترم de-10 هستش . وقتی ترمینال رو باز میکنم این جوری میاد
alieblice@de-10:~$
توضیح کامل
Configuring Hostnames
Computers “think” in terms of numbers, and so TCP/IP uses numbers to uniquely identify computers. Humans, though, work better with words. Thus, computers also usually have names, known as hostnames. Entire networks also have names, known as domain names. Hostnames typically appear as the first part of a fully qualified domain name (FQDN). For instance, tsiolkovsky.luna.edu is an FQDN, tsiolkovsky is the hostname, and luna.edu is the domain name.
Hostnames are configured in a couple of ways:
On DNS
Your network administrator should be able to add an entry for your computer to your network’s DNS server. This entry should make your computer addressable by name from other computers on your local network, and perhaps from the Internet at large. Alternatively, remote systems’ /etc/hosts files can be modified to include your system.
On Your Local Computer Various local programs should know your computer’s name. For instance, you may want to have your hostname displayed as part of a command prompt or entered automatically in email programs. For this task, you must set your hostname locally. Note that this is entirely independent of your DNS hostname. In theory, you can set the two to very different values, but this practice is likely to lead to confusion and perhaps even failure of some programs to operate properly.
The most basic tool for setting your hostname locally is called, appropriately enough, hostname. Type the command alone to see what your hostname is, or type it with a new name to set the system’s hostname to that name:
# hostname tsiolkovsky.luna.edu
Many Linux distributions look in the /etc/hostname or /etc/HOSTNAME file for a hostname to set at boot time. Thus, if you want to set your hostname permanently, you should look for these files, and if one is present, you should edit it. Fedora uses /etc/sysconfig/network for this purpose, among others. If you can’t find one of these files, consult your distribution’s documentation; it’s conceivable that your distribution stores its hostname in some unusual location.
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