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By means of SRV resource record can be publicised by DNS, which are offered IP-based service (services) in a Domain (e.g. company). To each service far information are supplied, how for example the server name, which makes this service available.

A service is designated by the name and minutes attached with one point. Both components "“_"” one places in front, in order to prevent mistakes with other Domain names.

Structure

Service service + minutes + DomainTTL indicates, how long this RR in the Cache darfIN are held if several identical services are offered, has the lowest priority priority weight for same priority has the higher weight priority haven TCP or UDP haven number server server, which makes this service available

Example

_ldap._tcp.example.com 3600 IN SRV 10 0 389 ldap01.example.com. 

A Client, can determine in this example by DNS that in the DNS Domain example.com of the LDAP servers ldap01 exists, which is attainable over TCP haven 389.

Note

SRV RRs are used frequently by Microsoft Windows 2000-Clients, in order to determine for a necessary service the responsible Domain CONTROLLER.

Related links

  • RFC 2782 - A DNS RR for specifying the location OF services (DNS SRV)

Articles in category "SRV resource record"

We found here 6 articles.

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» SIG resource record
» SOA resource record
» SPF resource record
» SRV resource record
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