Problems opening port 9998

[erica057]

Hi there,

I have been trying to open port 9998 on an AIX box to no avail. This machine is not connected to the internet and I have only been accessing it locally, so I know it's not a network firewall/proxy issue. I have tried editing /etc/services and inetd.conf, refreshing inetd.conf, and also starting the subsystem in smit. Still, the port is not open. Is there anything that I am missing? I've tried everything that I can think of (killing the inetd process and re-creating it, disabling IP security, etc.).

Thanks!
Erica

http://www.thanksforthemammaries.net

 

[kHz]

What application, or how are you trying to open the port?

 

[erica057]

kHz, this is for a custom Java application. I wrote a new entry for it in /etc/services. I've tried to open in in inetd.conf, as well as smit's interface for administering subsystems. Thanks in advance!

 

[kHz]

Try using ksh to connect to a socket to see what happens.

exec 3<> /dev/tcp/hostname/portnum

this will open a tcp connection for reading and writing on file descriptor 3. You can then use read and print statements with the file descriptor (3).

 

[kHz]

Or

$ date=
$ read date < /dev/tcp/127.0.0.1/13
$ echo $date

 

[RodKnowlton]

kHz -

What version of AIX are you on? /dev/tcp access, which I would love to have, isn't present on 5100-04.



Rod Knowlton
IBM Certified Advanced Technical Expert pSeries and AIX 5L
CompTIA Linux+
CompTIA Security+

 

[kHz]

I was on a Solaris server at the time. AIX doesn't appear to have it. It should be able to be created using mknod and make it a character file with permissions of rw-rw-rw. Major/minor is 42,0 on my server but I would think any major number would work.