Connecting two authentication servers

Two authentication servers can be connected. When the servers are connected, the server configurations must be the same, except for the IP address and the port.

If you search for a server using information registered in the SRV records in the DNS server, confirm that the following conditions are satisfied:

LDAP server conditions:

• The environmental setting for the DNS server is completed at the LDAP server.

• The host name, the port number, and the domain name of the LDAP server are registered in the DNS server.

Kerberos server conditions:

• The host name, the port number, and the domain name of the Kerberos server are registered in the DNS server.

• You cannot use the SRV records on a RADIUS server.

Because UDP/IP is used to access the RADIUS server, no encrypted communications are available, such as negotiations between processes. To access the RADIUS server in a secure environment, encryption in the packet level is required, such as IPsec.