topic Re: error port 50020 in Operating System - HP-UX

error port 50020

Miguel Carabano_1 — Mon, 01 Dec 2008 19:22:52 GMT

Hi Team,

I need help!

When execute in host1:
# netstat -an | grep 50020

DonÂ´t display from console, but in another host, example host2 itÂ´s OK!

File Attach: port_ok.txt

Thanks

MC

Re: error port 50020

James R. Ferguson — Mon, 01 Dec 2008 19:30:52 GMT

Hi:

Whatever process you expect to be using port # 50020 isn't running. Compare your startup ('/sbin/rc.d') scripts on the two machines and your '/etc/inittab' entries.

Regards!

...JRF...

Re: error port 50020

Miguel Carabano_1 — Mon, 01 Dec 2008 20:04:37 GMT

James,

But before worked!

Host1 is rp5470 (9000/800/L3000-7x) with hpux 11.23

Host2 is SuperDome (ia64 hp superdome server SD32B)

any idea ?

Re: error port 50020

Torsten. — Mon, 01 Dec 2008 20:09:21 GMT

Maybe an application that was listening to that port has stopped.

Check with "lsof" on the working server what it is.

http://hpux.asknet.de/hppd/hpux/Sysadmin/lsof-4.80/

Re: error port 50020

Miguel Carabano_1 — Mon, 01 Dec 2008 20:23:48 GMT

Hi,

I donÂ´t understand output.

please see.

Thanks

Re: error port 50020

Patrick Wallek — Mon, 01 Dec 2008 20:33:32 GMT

You just listed all the processes. You probably just typed 'lsof' at the prompt, right?

Try this to list the specific items that for port 50020:

lsof -i tcp:50020
(This assume it is tcp port 50020 and not UDP port 50020).

If it is a UDP port, then do:

lsof -i udp:50020

Re: error port 50020

Miguel Carabano_1 — Mon, 01 Dec 2008 20:45:48 GMT

Patrick,

After executed command:

[host1]/> /usr/local/bin/lsof -i tcp:50020
[host1]/>

None!

But in host2

host2:/> /usr/local/bin/lsof -i tcp:50020
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
jlaunch 18625 bw1adm 64u IPv4 0xe000000182095ac0 0t313559 TCP localhost:55540->localhost:50020 (ESTABLISHED)
jlaunch 18626 bw1adm 57u IPv4 0xe0000001820af200 0t0 TCP *:50020 (LISTEN)
jlaunch 18626 bw1adm 60u IPv4 0xe000000182095900 0t61146 TCP localhost:50020->localhost:55540 (ESTABLISHED)

I donÂ´t idea about application can are stoped...

Re: error port 50020

Patrick Wallek — Mon, 01 Dec 2008 21:46:29 GMT

OK, on HOST2 there is an application called 'jlaunch' that is running that is listening on port 50020.

This application is NOT running on HOST1. If it is supposed to be, then you need to figure out 2 things:

1) Why did it stop.

2) How to restart it.

I would guess you need to figure out who wrote this application or who the support person is for the application.

I don't recognize jlaunch as any HP application.

Re: error port 50020

OldSchool — Tue, 02 Dec 2008 20:37:50 GMT

Patrick: FWIW the jlaunch stuff i've found seems to either be windows-related, or SAP web-based admin in UNIX env.