Nortel Networks WEB OS 212777 - Manual (Page 235)

Web OS 10.0 Application Guide
Chapter 10: Health Checking n 235
212777-A, February 2002
POP3 Server Health Checks
The Post Office Protocol - Version 3 (POP3) is intended to permit a workstation to dynami-
cally access a maildrop on a server host. The POP3 protocol is used to allow a workstation to
retrieve mail that the server is holding for it. This protocol is documented in RFC 1939.
When the user on a client host wants to enter a message into the transport system, it establishes
an SMTP connection to its relay host and sends all mail to it.
Initially, the server host starts the POP3 service by listening on TCP port 110. When a client
host wants to make use of the service, it establishes a TCP connection with the server host.
Configuring the Switch for POP3 Health Checks
To support health checking on the UNIX POP3 server, the network administrator must config-
ure a username:password value in the switch, using the content option on the SLB real
server group menu ( /cfg/slb/group )
To configure the switch for POP3 health checks:
1. Select the real server group.
2. Set the health check type to POP3 for the real server group..
3. Configure the health check content.
4. Apply and save your configuration.
>> # /cfg/slb/group 1 (Select a real server group)
>> # /cfg/slb/group 1/health pop3
>> # /cfg/slb/group 1/content :
>> # Real server group 1# apply
>> # Real server group 1# save