[[man_de_hostname]]

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man_de_hostname [2016/03/30 15:33] (Version actuelle)
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 +==== Manuel de la commande "​hostname"​ ====
 +
 +<​code>​
 +HOSTNAME(1) ​                                            Linux Programmer'​s Manual ​                                           HOSTNAME(1)
 +
 +
 +
 +NAME
 +       ​hostname - show or set the system'​s host name
 +       ​domainname - show or set the system'​s NIS/YP domain name
 +       ​ypdomainname - show or set the system'​s NIS/YP domain name
 +       ​nisdomainname - show or set the system'​s NIS/YP domain name
 +       ​dnsdomainname - show the system'​s DNS domain name
 +
 +
 +SYNOPSIS
 +       ​hostname ​ [-a|--alias] ​ [-d|--domain] ​ [-f|--fqdn|--long] [-A|--all-fqdns] [-i|--ip-address] [-I|--all-ip-addresses] [-s|--short]
 +       ​[-y|--yp|--nis]
 +       ​hostname [-b|--boot] [-F|--file filename] [hostname]
 +       ​hostname [-h|--help] [-V|--version]
 +
 +       ​domainname [nisdomain] [-F file]
 +       ​ypdomainname [nisdomain] [-F file]
 +       ​nisdomainname [nisdomain] [-F file]
 +
 +       ​dnsdomainname
 +
 +
 +DESCRIPTION
 +       ​Hostname is used to display the system'​s DNS name, and to display or set its hostname or NIS domain name.
 +
 +
 +   GET NAME
 +       When called without any arguments, the program displays the current names:
 +
 +       ​hostname will print the name of the system as returned by the gethostname(2) function.
 +
 +       ​domainname will print the NIS domainname of the system. ​ domainname uses the gethostname(2) function, while ypdomainname and nis‐
 +       ​domainname use the yp_get_default_domain(3).
 +
 +       ​dnsdomainname ​ will  print the domain part of the FQDN (Fully Qualified Domain Name). The complete FQDN of the system is returned
 +       with hostname --fqdn (but see the warnings in section THE FQDN below).
 +
 +
 +   SET NAME
 +       When called with one argument or with the --file option, the commands set the host name or the NIS/YP domain name.  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. ​ Edit /​etc/​hostname for permanent change.
 +
 +       Note, that only the super-user can change the names.
 +
 +       It is not possible to set the FQDN or the DNS domain name with the dnsdomainname command (see THE FQDN below).
 +
 +       The host name is usually set once at system startup in /​etc/​init.d/​hostname.sh (normally by reading the contents of a file  which
 +       ​contains the host name, e.g.  /​etc/​hostname).
 +
 +
 +   THE FQDN
 +       ​The ​ FQDN  (Fully ​ Qualified ​ Domain ​ Name)  of  the  system is the name that the resolver(3) returns for the host name, such as,
 +       ​ursula.example.com. ​ It is usually the hostname followed by the DNS domain name (the part after the first dot).   ​You ​ can  check
 +       the FQDN using hostname --fqdn or the domain name using dnsdomainname.
 +
 +       You cannot change the FQDN with hostname or dnsdomainname.
 +
 +       ​The ​ recommended ​ method ​ of  setting the FQDN is to make the hostname be an alias for the fully qualified name using /etc/hosts,
 +       DNS, or NIS. For example, if the hostname was "​ursula",​ one might have a line in /etc/hosts which reads
 +
 +              127.0.1.1 ​   ursula.example.com ursula
 +
 +       ​Technically:​ The FQDN is the name getaddrinfo(3) returns for the host name returned by gethostname(2). ​ The DNS  domain ​ name  is
 +       the part after the first dot.
 +
 +       ​Therefore ​ it  depends ​ on the configuration of the resolver (usually in /​etc/​host.conf) how you can change it. Usually the hosts
 +       file is parsed before DNS or NIS, so it is most common to change the FQDN in /etc/hosts.
 +
 +       If a machine has multiple network interfaces/​addresses or is used in a mobile environment, ​ then  it  may  either ​ have  multiple
 +       ​FQDNs/​domain ​ names  or  none at all. Therefore avoid using hostname --fqdn, hostname --domain and dnsdomainname. ​ hostname --ip-
 +       ​address is subject to the same limitations so it should be avoided as well.
 +
 +
 +OPTIONS
 +       -a, --alias
 +              Display the alias name of the host (if used). This option is deprecated and should not be used anymore.
 +
 +       -A, --all-fqdns
 +              Displays all FQDNs of the machine. This option enumerates all configured ​ network ​ addresses ​ on  all  configured ​ network
 +              interfaces, and translates them to DNS domain names. Addresses that cannot be translated (i.e. because they do not have an
 +              appropriate reverse IP entry) are skipped. Note that different addresses may resolve to the same name, therefore the  out‐
 +              put may contain duplicate entries. Do not make any assumptions about the order of the output.
 +
 +       -b, --boot
 +              Always ​ set  a hostname; this allows the file specified by -F to be non-existant or empty, in which case the default host‐
 +              name localhost will be used if none is yet set.
 +
 +       -d, --domain
 +              Display the name of the DNS domain. ​ Don't use the command domainname to get the DNS domain name because it will show  the
 +              NIS  domain ​ name  and not the DNS domain name. Use dnsdomainname instead. See the warnings in section THE FQDN above, and
 +              avoid using this option.
 +
 +       -f, --fqdn, --long
 +              Display the FQDN (Fully Qualified Domain Name). A FQDN consists of a short host name and the DNS domain name.  Unless ​ you
 +              are  using bind or NIS for host lookups you can change the FQDN and the DNS domain name (which is part of the FQDN) in the
 +              /etc/hosts file. See the warnings in section THE FQDN above und use hostname --all-fqdns instead wherever possible.
 +
 +       -F, --file filename
 +              Read the host name from the specified file. Comments (lines starting with a `#') are ignored.
 +
 +       -i, --ip-address
 +              Display the network address(es) of the host name. Note that this works only if the host name can be resolved. Avoid  using
 +              this option; use hostname --all-ip-addresses instead.
 +
 +       -I, --all-ip-addresses
 +              Display ​ all network addresses of the host. This option enumerates all configured addresses on all network interfaces. The
 +              loopback interface and IPv6 link-local addresses are omitted. Contrary to option -i, this option does not depend ​ on  name
 +              resolution. Do not make any assumptions about the order of the output.
 +
 +       -s, --short
 +              Display the short host name. This is the host name cut at the first dot.
 +
 +       -V, --version
 +              Print version information on standard output and exit successfully.
 +
 +       -y, --yp, --nis
 +              Display the NIS domain name. If a parameter is given (or --file name ) then root can also set a new NIS domain.
 +
 +       -h, --help
 +              Print a usage message and exit.
 +
 +NOTES
 +       ​The ​ address ​ families ​ hostname ​ tries when looking up the FQDN, aliases and network addresses of the host are determined by the
 +       ​configuration of your resolver. ​ For instance, on GNU Libc systems, the resolver can be instructed to try IPv6 lookups ​ first  by
 +       using the inet6 option in /​etc/​resolv.conf.
 +
 +FILES
 +       /​etc/​hostname ​ Historically ​ this  file  was supposed to only contain the hostname and not the full canonical FQDN. Nowadays most
 +       ​software is able to cope with a full FQDN here. This file is read at boot time by the system initialization scripts ​ to  set  the
 +       ​hostname.
 +
 +       /​etc/​hosts Usually, this is where one sets the domain name by aliasing the host name to the FQDN.
 +
 +AUTHORS
 +       Peter Tobias, <​tobias@et-inf.fho-emden.de>​
 +       Bernd Eckenfels, <​net-tools@lina.inka.de>​ (NIS and manpage).
 +       ​Michael Meskes, <​meskes@debian.org>​
 +
 +
 +
 +net-tools ​                                                     2009-09-16 ​                                                   HOSTNAME(1)
 +
 +</​code>​
  
  • man_de_hostname.txt
  • Dernière modification: 2016/03/30 15:33
  • (modification externe)