telnetd

[j773303]

Many message as below, logs into /var/adm/syslog/syslog.log
Does anyone know what happend? Thanks.


Dec 3 13:06:24 atmes01 telnetd[8981]: recv: Connection reset by peer
Dec 3 13:18:57 atmes01 telnetd[7579]: recv: Connection reset by peer
Dec 3 13:38:12 atmes01 telnetd[11404]: recv: Connection reset by peer
Dec 3 13:44:18 atmes01 telnetd[11477]: recv: Connection reset by peer
Dec 3 13:47:29 atmes01 telnetd[5934]: recv: Connection reset by peer
Dec 3 13:58:08 atmes01 telnetd[11790]: recv: Connection reset by peer
Dec 3 14:02:29 atmes01 telnetd[5394]: recv: Connection reset by peer

[Clemens van Everdingen]

Hi,

Probably you need to increase the kernel paramaters npty and nstrpty.

C.

[Armin Feller · Accepted solution]

The NDD_VALUE in the ndd.conf file was set incorrectly. The value "1000" is in milliseconds which equates to a 1 second timeout period. This value must be increased in order for the omniback agent to have sufficient time to start. A more appropriate setting for this NDD_VALUE should be "66000" or 11 minutes.

[j773303]

Hi,
Thanks for the nice information.
What's purpose for npty and nstrpty?

[Armin Feller]

The pty- and tty-devices you need for each telnet connection.

Check if enought devices are configured on the system:

# ll /dev/tty | wc -l
# ll /dev/pty | wc -l

Then check the kernel parameters. If the kernel value is higher then the 'll' counts then create further devices.

[Clemens van Everdingen]

Hi,

Find attached a kernel parameter overview doc !

C.

[j773303]

Does this "telnetd[5394]: recv: Connection reset by peer" message will caused OS shutdown
to Single User mode? I'm not sure it is the
root cause. Since the OS will auto shutdown
to Init S around 2 weeks. Do you have any
comments? Thanks.

[j773303]

Hi,
I can't find nddconf since the OS is 10.20.
Can you tell how to modify NDD_VALUE in UNIX
10.20? Thanks

[T G Manikandan]

If it is 10.20 you have to use nettune.

# nettune -s


Thanks

[T G Manikandan]

check this hp doc

http://www2.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000063203773

ALso to make your nettune changes permanent you need to put nettune in a startup script