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purpose of "hostname" and "domain-name"
It's elementary to configure a hostname and domain-name for a router or switch:
However, what is the use of "hostname" and "domain-name". Hostname is useful for identifying the device(on the CLI or for example over CDP), both "hostname" and "domain-name" are used for identifying host SSH public key, but what else? Could somebody name additional uses for domain-name in IOS?
Router#conf t Enter configuration commands, one per line. End with CNTL/Z. Router(config)#hostname R1 R1(config)#ip domain-name example.org R1(config)#end R1#
However, what is the use of "hostname" and "domain-name". Hostname is useful for identifying the device(on the CLI or for example over CDP), both "hostname" and "domain-name" are used for identifying host SSH public key, but what else? Could somebody name additional uses for domain-name in IOS?
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DPG
Member Posts: 780 ■■■■■□□□□□
It is used for the search domain when you do local DNS lookups. -
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m4rtin
Member Posts: 170
It is used for the search domain when you do local DNS lookups.
By "local DNS lookups" you mean the ones which are done from the router/switch? However, what if I have specified "ip domain-list example.org"? According to Configuring DNS on Cisco Routers [IP Application Services] - Cisco Systems the default domain name is not used in that case. Are there any other use for "ip domain-name"? -
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gorebrush
Member Posts: 2,743 ■■■■■■■□□□
Hostname is important for generation of certificates as well. -
Optionsm4rtin
Member Posts: 170
Hostname is important for generation of certificates as well.
yes, but not if you specify label during the creation of the key.
