Hello guys
I am experiencing a very strange behavior on one of our AIX servers. We have an application with several processes that listen on several port numbers. Sometimes we receive complains that people cannot connect to the server on a specific port that is used by one the application processes. When we check for the process status we can see that the process is up and running and everything is ok. But when we run
Code:
netstat -an | grep 1234
where 1234 is (for example) the port number, we don't find the port in the list of the listening ports.
The obvious solution is to kill and restart the process. Well this doesn't always solve the problem as sometimes it stays that way even after restarting it and stays for a few minutes before listening.
Now the question is: what could possibly cause an application in AIX to be running but not listening on the port where it should be listening?
Does the existence of too many concurrent connections to the same port cause this behavior?
Thanks a lot in advance and I appreciate any help from your side.
Hi Everybody,
I want to create a shell script named as say "jip" and it is runned.
And i want that when i do ps + grep for the process than this jip should be shown as process.
Infact there might be process with name jip which is already running. (3 Replies)
Hello all,
I would be happy if any one could help me with a shell script that would determine all the processes running on a Unix server and post a mail if any of the process is not running or aborted.
Thanks in advance
Regards,
pradeep kulkarni.
:mad: (13 Replies)
How can I have ports that are listening without processes being associated with them?
root@ldv002 # netstat -ltnup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0... (2 Replies)
I have been having some trouble trying to get some code working, so I was wondering...what system calls are required to execute a different program from an already running process? (1 Reply)
I have process1 running on one machine and generating some log file. Now another process which can be launched on any machine wants to know if process1 is running or not and also in case it is running it wants to stream the logs file generated by process1 on terminal from which process2 is... (2 Replies)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (0 Replies)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (1 Reply)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (6 Replies)
Team,
I have multiple batchjobs running in VM, if I do ps -ef |grep java or tomcat I am getting multiple process list.
How do I get my exact tomcat process running and that is unique? via shell script? (4 Replies)
Discussion started by: Ghanshyam Ratho
4 Replies
LEARN ABOUT DEBIAN
rsuplnk
RSUPLNK(8) Linux Programmer's Manual RSUPLNK(8)NAME
rsuplnk - User entry into the ROSE network.
SYNOPSIS
rsuplnk [-q] <port>
DESCRIPTION
The rsuplnk program allows a user to gain entry into the ROSE network using the standard pseudo-digipeating method. Recent Linux kernels
are aware of this form of operation and the ax25d program can listen for such connections. The normal mode of operation of a ROSE switch is
to have one ROSE address (ie port) per physical AX.25 port. Therefore ROSE users coming in on a given AX.25 port will appear as if they
come from the associated ROSE port. This is the reason for the need for a ROSE port as an argument.
To use rsuplnk you need an entry in ax25d.conf to listen for incoming connections. In the example below, I will be listening for ROSE con-
nections on my AX.25 port 144 using the callsign KE4GAJ-10 and the ROSE port associated with the AX.25 port is rs144.
#
[KE4GAJ-10* VIA 144]
NOCALL * * * * * * L
default * * * * * * - root /usr/sbin/rsuplnk rsuplnk rs144
#
There would typically be one rsuplnk per user access AX.25 port. The associated program for exiting a ROSE network is rsdwnlnk.
All errors generated by rsuplnk are written to the system debug log file.
OPTIONS -q Supresses the messages generated by rsuplnk when making the connection.
FILES
/etc/ax25/rsports
SEE ALSO rose(4), ax25d.conf(5), ax25d(8), rsdwnlnk(8), rose_call(8).
AUTHOR
Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>
Linux 29 April 1997 RSUPLNK(8)