hostname

Linux Command – hostname ใช้ในการแสดงข้อมูลชื่อของเครื่อง server

 

คำสั่ง

hostname

$ hostname
Saixiii

$ hostname -d
com

$ hostname -i
19.18.1.2

 

โครงสร้างคำสั่ง

 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

 

รายละเอียด

เป็นคำสั่งที่ใช้ในการแสดงข้อมูลของชื่อเครื่อง, domain, IP ของเครื่อง server ที่ใช้งาน

 

Option

 -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 output 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 hostname 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.

 

กลุ่มคำสั่ง

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Reference:

คำสั่ง Unix – Linux Command

Linux, Unix

 

Author: Suphakit Annoppornchai

Credit: https://saixiii.com