Technical data

Managing TCP/IP Services

1.5 Auxiliary Server

The auxiliary server builds the network process name from the character

string in the services database. Enter this string with the SET SERVICE

command:

TCPIP> SET SERVICE service /PROCESS_NAME=process

Note

For TELNET and RLOGIN, the process name is set by either the system

or users.

4. Set the maximum number of server processes that can run simultaneously.

This number should not exceed the maximum number of sockets allowed on

the system. To set the maximum number of processes that can connect to a

service at the same time, enter the following TCP/IP management command:

TCPIP> SET SERVICE service-name /LIMIT=n

In this command, service-name is the name of the service to which the

connections will be limited, and n is the number of connections that will

be accepted by the service at one time.

To activate the change, disable the service using the DISABLE SERVICE

command, and then enable it using the ENABLE SERVICE command.

5. Make sure that the protections in the systemwide SYLOGIN.COM ﬁle are set

appropriately. If they are not, enter the following DCL command:

$ SET PROTECTION=(W:RE) SYS$MANAGER:SYLOGIN.COM

6. To ensure that the services database has an entry for each service offered,

enter the SHOW SERVICE command.

1.6 Enabling Services

The services you conﬁgured are enabled during the TCP/IP Services startup

procedure. Afterwards, to initialize (enable) a service, enter the following

command:

TCPIP> ENABLE SERVICE

The ENABLE SERVICE command immediately changes the running system. The

SET CONFIGURATION ENABLE SERVICE command causes the services to be

enabled the next time TCP/IP Services starts up.

To specify the type of socket, include the /PROTOCOL qualiﬁer on the SET

SERVICE command line. For example, to specify stream sockets, enter

/PROTOCOL=TCP. To specify datagram sockets, enter /PROTOCOL=UDP.

The auxiliary server can set socket options for a requested service either before

or during data communications. Some available options are:

• KEEPALIVE (for TCP communications)

• BROADCAST (for UDP communications)

To set the socket options, include the /SOCKET_OPTIONS qualiﬁer on the SET

SERVICE command.

Managing TCP/IP Services 1–9