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64 lines
2.1 KiB
ReStructuredText
64 lines
2.1 KiB
ReStructuredText
.. _host-information:
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################
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Host Information
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################
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This section describes the system's host information and how to configure them,
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it covers the following topics:
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* Host name
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* Domain
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* IP address
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* Aliases
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Hostname
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========
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A hostname is the label (name) assigned to a network device (a host) on a
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network and is used to distinguish one device from another on specific networks
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or over the internet. On the other hand this will be the name which appears on
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the command line prompt.
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.. cfgcmd:: set system host-name <hostname>
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Set system hostname. The hostname can be up to 63 characters. A hostname
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must start and end with a letter or digit, and have as interior characters
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only letters, digits, or a hyphen.
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The default hostname used is `vyos`.
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Domain Name
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===========
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A domain name is the label (name) assigned to a computer network and is thus
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unique. VyOS appends the domain name as a suffix to any unqualified name. For
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example, if you set the domain name `example.com`, and you would ping the
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unqualified name of `crux`, then VyOS qualifies the name to `crux.example.com`.
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.. cfgcmd:: set system domain-name <domain>
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Configure system domain name. A domain name must start and end with a letter
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or digit, and have as interior characters only letters, digits, or a hyphen.
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Static Hostname Mapping
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=======================
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How an IP address is assigned to an interface in :ref:`ethernet-interface`.
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This section shows how to statically map an IP address to a hostname for local
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(meaning on this VyOS instance) name resolution.
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.. cfgcmd:: set system static-host-mapping host-name <hostname> inet <address>
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Create a static hostname mapping which will always resolve the name
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`<hostname>` to IP address `<address>`.
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.. cfgcmd:: set system static-host-mapping host-name <hostname> alias <alias>
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Create named `<alias>` for the configured static mapping for `<hostname>`.
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Thus the address configured as :cfgcmd:`set system static-host-mapping
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host-name <hostname> inet <address>` can be reached via multiple names.
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Multiple aliases can pe specified per host-name.
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