Issues with sasl under heavy load, configuration issue?
hyc at highlandsun.com
Mon Apr 7 18:40:37 EDT 2008
Carson Gaspar wrote:
> Carson Gaspar wrote:
>> Howard Chu wrote:
>>> Paul Hasenohr wrote:
>>>> I am running Debian Etch with current Debian packages:
>>>> * slapd 2.3.30-5
>>>> * sasl2-bin 2.1.22.dfsg1-8
>>>> * libsasl2-2 2.1.22.dfsg1-8
>>>> * krb5-kdc 1.4.4-7etch5
>>>> Could anyone please tell me if this behaviour is to be expected or how
>>>> this could be improved?
>>> Best advice - use Heimdal Kerberos. MIT Kerberos code quality is poor,
>>> and thread safety is still unproven.
>> And the sky is blue, and that has NOTHING to do with the problem.
>> The problem is _exactly_ what the log says it is. The client is sending
>> multiple identical auth requests, which the KDC is (properly) rejecting
>> as a replay attack. Google shows many hits for a similar bug in
> I tracked down what may be the mod_auth_kerb fix, if anyone cares to
> look at it:
Replacing one piece of poorly implemented code (replay cache) with another
hack to disable it. Great idea. Better idea - replace more of it. In fact,
replace all of it.
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
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