HOSTNAME(1)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Linux System Administrator’s Manual\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 HOSTNAME(1)<\/p>\n
NAME<\/p>\n
hostname – show or set the system’s host name
\ndnsdomainname – show the system’s DNS domain name
\ndomainname – show or set the system’s NIS\/YP domain name
\nnisdomainname – show or set system’s NIS\/YP domain name
\nnodename – show or set the system’s DECnet node name
\nypdomainname – show or set the system’s NIS\/YP domain name<\/p>\n
SYNOPSIS<\/p>\n
hostname [-v] [-s|–short]<\/p>\n
hostname [-v] [-a|–alias] [-d|–domain] [-f|–fqdn|–long]
\n[-i|–ip-address]<\/p>\n
hostname [-v] [-y|–yp|–nis] [-n|–node]<\/p>\n
hostname [-v] [-F filename|–file filename] [newname]<\/p>\n
domainname [-v] [-F filename|–file filename] [newname]<\/p>\n
nodename [-v] [-F filename|–file filename] [newname]<\/p>\n
hostname [-v|–verbose] [-h|–help] [-V|–version]<\/p>\n
dnsdomainname [-v]
\nnisdomainname [-v]
\nypdomainname [-v]<\/p>\n
DESCRIPTION<\/p>\n
Hostname is the program that is used to either set or display the
\ncurrent host, domain or node name of the system.\u00a0 These names are
\nused by many of the networking programs to identify the machine. The
\ndomain name is also used by NIS\/YP.<\/p>\n
GET NAME
\nWhen called without any arguments, the program displays the current
\nnames:<\/p>\n
hostname will print the name of the system as returned by the
\ngethostname(2) function.<\/p>\n
domainname, nisdomainname, ypdomainname will print the name of the
\nsystem as returned by the getdomainname(2) function. This is also
\nknown as the YP\/NIS domain name of the system.<\/p>\n
nodename will print the DECnet node name of the system as returned by
\nthe getnodename(2) function.<\/p>\n
dnsdomainname will print the domain part of the FQDN (Fully Qualified
\nDomain Name). The complete FQDN of the system is returned with
\nhostname –fqdn.<\/p>\n
SET NAME
\nWhen called with one argument or with the –file option, the commands
\nset the host name, the NIS\/YP domain name or the node name.<\/p>\n
Note, that only the super-user can change the names.<\/p>\n
It is not possible to set the FQDN or the DNS domain name with the
\ndnsdomainname command (see THE FQDN below).<\/p>\n
The host name is usually set once at system startup by reading the
\ncontents of a file which contains the host name, e.g.
\n\/etc\/hostname).<\/p>\n
THE FQDN
\nYou can’t change the FQDN (as returned by hostname –fqdn) or the DNS
\ndomain name (as returned by dnsdomainname) with this command. The
\nFQDN of the system is the name that the resolver(3) returns for the
\nhost name.<\/p>\n
Technically: The FQDN is the canonical name returned by
\ngethostbyname2(2) when resolving the result of the gethostname(2)
\nname. The DNS domain name is the part after the first dot.<\/p>\n
Therefore it depends on the configuration (usually in \/etc\/host.conf)
\nhow you can change it. If hosts is the first lookup method, you can
\nchange the FQDN in \/etc\/hosts.<\/p>\n
OPTIONS<\/p>\n
-a, –alias
\nDisplay the alias name of the host (if used).<\/p>\n
-d, –domain
\nDisplay the name of the DNS domain (this is the FQDN without
\nthe segment up to the first dot). This is equivalent to using
\nthe dnsdomainname command.<\/p>\n
-F, –file filename
\nRead the new host name from the specified file. Comments
\n(lines starting with a `#’) are ignored.<\/p>\n
-f, –fqdn, –long
\nDisplay the FQDN (Fully Qualified Domain Name). A FQDN
\nconsists of name including the DNS domain.<\/p>\n
-h, –help
\nPrint a usage message and exit.<\/p>\n
-i, –ip-address
\nDisplay the IP address(es) of the host.<\/p>\n
-n, –node
\nDisplay the DECnet node name. If a parameter is given (or
\n–file name ) the root can also set a new node name.<\/p>\n
-s, –short
\nDisplay the short host name. This is the host name cut at the
\nfirst dot.<\/p>\n
-V, –version
\nPrint version information on standard output and exit
\nsuccessfully.<\/p>\n
-v, –verbose
\nBe verbose and tell what’s going on.<\/p>\n
-y, –yp, –nis
\nDisplay the NIS domain name. If a parameter is given (or
\n–file name ) then root can also set a new NIS domain.<\/p>\n
FILES<\/p>\n
\/etc\/hostname \/etc\/hosts \/etc\/host.conf<\/p>\n
AUTHOR<\/p>\n
Peter Tobias, <tobias@et-inf.fho-emden.de>
\nBernd Eckenfels, <net-tools@lina.inka.de> (NIS and manpage).
\nSteve Whitehouse, <SteveW@ACM.org> (DECnet support and manpage).<\/p>\n
COLOPHON<\/p>\n
This page is part of the net-tools (networking utilities) project.
\nInformation about the project can be found at
\n\u27e8http:\/\/net-tools.sourceforge.net\/\u27e9.\u00a0 If you have a bug report for
\nthis manual page, see \u27e8http:\/\/net-tools.sourceforge.net\/\u27e9.\u00a0 This page
\nwas obtained from the project’s upstream Git repository
\n(git:\/\/git.code.sf.net\/p\/net-tools\/code) on 2014-12-30.\u00a0 If you dis\u2010
\ncover any rendering problems in this HTML version of the page, or you
\nbelieve there is a better or more up-to-date source for the page, or
\nyou have corrections or improvements to the information in this
\nCOLOPHON (which is not part of the original manual page), send a mail
\nto\u00a0man-pages@man7.org<\/p>\n
net-tools\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2013-08-29\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 HOSTNAME(1)<\/p>\n","protected":false},"excerpt":{"rendered":"
HOSTNAME(1)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Linux System Administrator’s Manual\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 HOSTNAME(1) NAME hostname – show or set the system’s host name dnsdomainname – show the system’s DNS domain name domainname – show or set the system’s NIS\/YP domain name nisdomainname – show or set system’s NIS\/YP domain name nodename – show or set the system’s DECnet node name ypdomainname – […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"categories":[8],"tags":[],"class_list":["post-327","post","type-post","status-publish","format-standard","hentry","category-shell"],"a3_pvc":{"activated":false,"total_views":0,"today_views":0},"_links":{"self":[{"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=\/wp\/v2\/posts\/327","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=327"}],"version-history":[{"count":0,"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=\/wp\/v2\/posts\/327\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.linuxboxen.dk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}