How to control psa/handlers/hooks/grey

[nocrash]

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PRODUCT, VERSION, MICROUPDATE, OPERATING SYSTEM, ARCHITECTURE

10.4.4 SuSE 11.4 1013111102.18 (patch version="45"), 64 bit

PROBLEM DESCRIPTION

How to configure number of clients for greylisting?

STEPS TO REPRODUCE

since some days we seems to get under attack, server is suddenly under high load and with a lot of
/usr/local/psa/handlers/hooks/grey processes.

3444 ? Ssl 8:59 /usr/lib64/plesk-9.0/psa-pc-remote -p inet:12768@localhost
31846 ? S 0:03 \_ /usr/local/psa/handlers/hooks/grey none www-data@
32151 ? S 0:03 \_ /usr/local/psa/handlers/hooks/grey none energaia.
32406 ? S 0:04 \_ /usr/local/psa/handlers/hooks/grey none mm3g@kjm2
32531 ? S 0:03 \_ /usr/local/psa/handlers/hooks/grey none a.eckardt
32678 ? D 0:03 \_ /usr/local/psa/handlers/hooks/grey none merope@me
32720 ? S 0:03 \_ /usr/local/psa/handlers/hooks/grey none www-data@
303 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none portierun
305 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none Internets
471 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none www-data@
472 ? Z 0:00 \_ [check-quota] <defunct>
486 ? S 0:03 \_ /usr/local/psa/handlers/hooks/grey none www-data@
505 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none www-data@
512 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none pelz@agen
649 ? S 0:03 \_ /usr/local/psa/handlers/hooks/grey none noreply@g
864 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none nr71@elai
867 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none bounce@bo
941 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none www-data@
952 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none Internets
962 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none www-data@
963 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none michel.he
964 ? Z 0:02 \_ [grey] <defunct>
1042 ? S 0:02 \_ /usr/local/psa/handlers/hooks/grey none www-data@
1044 ? S 0:03 \_ /usr/local/psa/handlers/hooks/grey none www-data@
1056 ? Z 0:02 \_ [grey] <defunct>
....

Last time a number of 152, some of them at defunct state (ZOMBIE) .
at normal state i didnt see any of them in the process list (for a longer time)

EXPECTED RESULT

The mother process (/usr/lib64/plesk-9.0/psa-pc-remote -p inet:12768@localhost) should better take care of their childs


ANY ADDITIONAL INFORMATION

this is only one side effect of the "attacks", thank you for any hint to get the server harder to crack..

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[MarkM]

I've used the following wrapper in the Plesk 9 days;

http://www.tomo.at/plesk-high-cpu-load-many-stale-greylisting-executable-processes.phtml

Not sure how this will respond with Plesk 10 however.

 

[nocrash]

Not sure how this will respond with Plesk 10 however.

Hey Mark. Thank you! But i will not try that skript , its written there UPDATE 20-10-2009: Do not use this script, it does not work either!!!