Configuring DNS for instant messaging

About SRV records

SRV (service) records are entries in your DNSDomain Name System - Enables the translation of hostnames to IP addresses and provides other domain related information. which specify the location of service servers. You must configure SRV records to make instant messaging in Kerio Connect accessible from other servers.

There are two types of SRV records:

Go to the Kerio Connect administration (Configuration > Instant MessagingInstant messaging is a real-time online chat.) to check if the SRV records for your domain are configured. For more information refer to Configuring instant messaging in Kerio Connect.

You must add SRV records on your DNS server or use the management interface of your DNS registrar to add the records.

NOTE

Visit XMPP wiki for more information on SRV records.

Configuring DNS records for server to server communication

Follow this example to add a server SRV recordService record is a record in DNS that specifies the location of server for individual services. to your DNS

_xmpp-server._tcp.feelmorelaw.com. 18000 IN SRV 0 5 5269 mail.feelmorelaw.com.

Fields Description
Service _xmpp-server
Protocol _tcp
Hostname/Name Your domain name
Priority Priority of the target
Weight Weight for records of the same priority
Port 5269
Target/Value Your server hostname
TTL Time to live value

The following items can be changed:

  • Domain name (feelmorelaw.com)
  • Server hostname (mail.feelmorelaw.com)
  • TTL (18000)
  • Record priority (0)
  • Record weight (5)

IMPORTANT

Do not change the port number (5269).

Configuring DNS records for client auto-configuration

If the name of your domain differs from the name of the instant messaging server, you can add a client SRV record to your DNS.

This record allows auto-configuration of instant messaging clients. Without the client SRV record, users must manually specify the server and port in their client configuration.

Follow this example to add a client SRV record to your DNS:

_xmpp-client._tcp.feelmorelaw.com. 18000 IN SRV 0 5 5222 mail.feelmorelaw.com.

Fields Description
Service _xmpp-client
Protocol _tcp
Hostname/Name Your domain name
Priority Priority of the target
Weight Weight for records of the same priority
Port Port for communication from client to server
Target/Value Your server hostname
TTL Time to live value

The following items can be changed:

  • Domain name (feelmorelaw.com)
  • Server hostname (mail.feelmorelaw.com)
  • TTL (18000)
  • Record priority (0)
  • Record weight (5)
  • Port 5222