D370 always pinging PC

[leyearn]

in my LAN
there are two hp9000 D370s(os hpux 10.20 )and some PCs(windowns )
but the D370 always sends ping-package to the
PCs

is there virus in my hp9000 system?

[Michael Tully]

There are no viruses as such on hpux. Systems can be compromised by things called trojan horses. You could possibly have a script that runs from cron that does this. If these are not productions systems you could disable cron temporarily to see if the practise continues. (if that's where the jobs start from)

[leyearn]

to Michael Tully
if it has something with "trojan horses" which use cron to send ping-packet
can i execute #crontab -l
to list the script?

[Steven E. Protter]

The default configuration of HP-UX 11.00 and earlier is to maintain network connectivity with an occaisional ping.

This can be turned off with the ndd command.

Its not a virus. Its a feature. This feature is turned off by default in 11.11.

Do you want a procedure for turning it off? There may be one deep in my bag of tricks.

sEP

[leyearn]

to Steven E Protter
if it is as you said
this phenomenon should happen when my systems are setup!
but it happens only these days !

[Elmar P. Kolkman]

HP-UX tries to ping its routers, to make sure they still are valid. Could it be that your routing table has been changed recently?

[Trond Haugen]

Apart from what is already mentioned it could ba a user running a script. Have you tried to grep for ping in the process table (ps -ef | grep ping)?

Regards,
Trond

[leyearn]

to trojan horses
there is no ping process
if it has something about trojan horses
how can deal with it?

thanks in advance!

[Fragon]

Hi there,
do you run other applications in you HP-UX boxes? What applications?

[leyearn]

Sybase dataServer

[leyearn]

there is OV is running
root 10555 1 0 Mar 17 ? 0:01 OVLicenseMgr
root 26847 26845 0 Apr 16 ? 0:01 OVLicenseMgr
but i donâ t know about it
i heard that it was a componet of OPenv