[Xymon] LDAP test will not use nonstandard port
cleaver at terabithia.org
Thu Sep 17 22:30:11 CEST 2015
On Thu, September 17, 2015 1:11 pm, Scot Kreienkamp wrote:
> Hi John,
> On 9/17/2015 10:57 AM, Scot Kreienkamp wrote:
>> > Hi all,
>> > Iâm running an LDAP test against an Oracle LDAP server from xymon
>> > this configuration:
>> > ldap://oud1.example.com:1389/DC=example,DC=com
>> > That test is failing with the error that it cannot contact the
>> I have the following line in my hosts:
>> > 0.0.0.0 foo.bar.com #
>> Broken up for easier reading:
>> 0.0.0.0 foo.bar.com #
>> My server is listening on ports 389 and 636. I have added the 399 test
>> for diagnostics. The result is: 399 fails, 389, and 636 continue to
>> work. In this instance, I'd say my ldap test is able to test against
>> non-standard ports.
>> (Solaris 10 with Xymon 4.3.21)
>> Does yours behave any differently if:
>> A) you attempt an anonymous bind?
>> B) you wrap your entire "ldap...=com" portion in double-quotes?
>> C) you replace your bind attempt with a simple port check?
> The test results say:
> ldap://lzbvidmdvoud1.na.lzb.hq:1389/DC=example,DC=com - failed
> So it seems to be picking up the entire LDAP URL without it in quotes. I
> have two to test; the first is now surrounded by double quotes, the second
> is not. Neither are working. A simple port check works just fine. I
> tried the anonymous bind also, which results in failure also. Anonymous
> bind from command line works fine.
The LDAP check is a little bit special-cased by default. Openldap's API
for bind checking tends to hang if the service is down, so it's checked
via a TCP hit first.
Looking through my records, this patch from Terabithia wasn't upstreamed
yet due to its changing of the default behavior, but I think it might be
the actual root of this problem. (Honestly, I haven't altered an LDAP
check in a while, so I might be remembering things wrong.) Would you mind
trying it out?
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