enable tcp port

[j773303]

When I create 99999/test in etc/services, I what to test the connection from client to server. How to I enable 99999 to listen mode, let the client can test the connection? And how to test it? which command can do that? telnet hostname 99999 ???

[Ricardo Bassoi]

Hi,

The /etc/services doesn't enable/disable ports, it provides a way of associating port names with the port number (a bit like /etc/hosts with IP addresses). You don't need to have anything in /etc/services in order to use a port by number.

By the way you can try restarting the inetd with inetd -c

Regards,

Bassoi

[Tim Adamson_1]

Try a port number under 65535. You can't use a port number that high.

[U.SivaKumar_2]

Hi,

I dont think you can use the port 99999 as the maximum number of ports supported is 65535.

Then coming to your question. To connect to a port you have to run a process ( program written using network/socket function calls ) which is hardcoded to bind to the desired port and should be in LISTEN state to accept connections.

regards,

U.SivaKumar

[twang]

Fro sample program in C for working with sockets, you may look at your system under:
/usr/lib/demos/networking/socket

[Caesar_3]

Hello!

First you can't use this number of port,
choose one that under 65535
Write a small program on C or perl that
will open the port and listend for connection
Then try the telnet

Caesar