# ModSecurity compile, ""WARNING: APR util was not compiled with crypto support."

**URL:** <https://www.ruby-forum.com/t/modsecurity-compile-warning-apr-util-was-not-compiled-with-crypto-support/242446>\
**Category:** NGINX\
**Created:** [June 24, 2015, 3:31pm UTC](https://www.ruby-forum.com/t/modsecurity-compile-warning-apr-util-was-not-compiled-with-crypto-support/242446 "2015-06-24T15:31:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [June 24, 2015, 3:31pm UTC](https://www.ruby-forum.com/t/modsecurity-compile-warning-apr-util-was-not-compiled-with-crypto-support/242446/1 "2015-06-24T15:31:00Z")

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Hi,

When compiling modsec, I came across the following -

“configure: WARNING: APR util was not compiled with crypto support.  
SecRemoteRule will not support the parameter ‘crypto’”

Basically the rhel6 apr-devel rpm does not have crypto support. Trying  
to  
determine what are the ramifications are here.

Might anyone know what this means? Am having difficulty finding what  
this  
SecRemoteRule is.

Thanks

Posted at Nginx Forum:

> **[ModSecurity compile, ""WARNING: APR util was not compiled with crypto support."](https://forum.nginx.org/read.php?2,259844,259844#msg-259844)**
>
> Hi, When compiling modsec, I came across the following - "configure: WARNING: APR util was not compiled with crypto support. SecRemoteRule will not support the parameter 'crypto'" Basically the rhel6 apr-devel rpm does not have crypto...

---

<div class="post-metadata">

**Author:** ![ajjH6](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ad7895/32.png) [@ajjH6](https://www.ruby-forum.com/u/ajjH6)\
**Post date:** [June 24, 2015, 7:56pm UTC](https://www.ruby-forum.com/t/modsecurity-compile-warning-apr-util-was-not-compiled-with-crypto-support/242446/2 "2015-06-24T19:56:16Z")

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Hi,

It should not be a problem.

The parameter “crypto” is optional and should not affect ModSecurity  
behavior.

Check the SecRemoteRules description on ModSecurity reference manual,  
at:

> **[Home](https://github.com/SpiderLabs/ModSecurity/wiki/#secremoterules)**
>
> ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx that is developed by Trustwave's SpiderLabs. It has a robust event-based programmin...

Br,  
Z.

Posted at Nginx Forum:

> **[Re: ModSecurity compile, ""WARNING: APR util was not compiled with crypto...](https://forum.nginx.org/read.php?2,259844,259874#msg-259874)**
>
> Hi, When compiling modsec, I came across the following - "configure: WARNING: APR util was not compiled with crypto support. SecRemoteRule will not support the parameter 'crypto'" Basically the rhel6 apr-devel rpm does not have crypto...