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Old 11-21-2016, 04:52 AM   #1
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Registered: Aug 2014
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apache webserver fail to load with undefined symbol: FIPS_mode_set

I'm trying to start apache webserver with my config file (loading the module) but getting every time this error message:

Starting the web server...
webserver: Syntax error on line 52 of /export/home/app/utils/linux/apache/conf/app.conf: Cannot load /export/home/app/utils/linux/apache/modules/ into server: /export/home/app/utils/linux/apache/modules/ undefined symbol: FIPS_mode_set
Failed to start the web server.

In a server with RH6.x it works fine. in RH5.x we see the error above...

The strange thing is that both servers has exactly the same rpms... so I cannot find the problem:

[root@fcbman lib64]# rpm -qa | grep openssl

and I have those links:
lrwxrwxrwx 1 app1 app 19 Nov 21 12:28 ->
lrwxrwxrwx 1 app1 app 16 Nov 21 12:27 ->

Just to mention... That if I change the link to point libssl.1.0.1 then the error is not shown, but I get other error related to glibc version which is worse since the required glibc cannot be installed on RH5.x (glibc2.7 supported on 6.x only).

any idea how I can make it work in 5.x?

Old 11-21-2016, 07:35 AM   #2
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Registered: Jun 2004
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You should first of all consider updating RHEL5, to a newer version, as it's EOL.
That said, how did you install apache?

I guess you've compiled it from source, as it's under the non standartd directory /export/home/app/utils/linux/apache.
If that's the case run:
ldd /export/home/app/utils/linux/apache/modules/
to find out the openssl version. that apache was built against. My guess is that it's built against openssl-1.0.1, but is uses openssl-0.9.8 at runtime



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