Apache installation mod_ssl.so appears undefined Symbol:ssl_cmd_sslpassphrasedialog error resolved

A long time ago, when installing Apache, did not think of a future day will be used to SSL, so also did not install that module, the results today need to use the time, but do not have.

Because the mod_ssl.so file was not installed when Apache was installed, it was decided to install the file. There are two main ways to install it: Recompile the installation and load the installation module.

Installation Method 1: Simple, is to recompile Apache directly, and then add –enable-ssl, this method is not much to say, here the main introduction method 2.

Installation Method 2: Dynamic installation. Apache has a mechanism like PHP that dynamically loads modules, first using the online introduction of more methods to install:

Note: The following [Apache] represents the Apache installation directory, [source] represents the Apache source directory.

1. Enter [Source]/modules/ssl

2. Execution [apache]/bin/apxs-a-i-c mod_ssl.c

The system will then prompt the installation to succeed, but when you start httpd you will be prompted:

Httpd:syntax error on line 146 of [Apache]/conf/httpd.conf:cannot load modules/mod_ssl.so into server: [apache]/modules/ mod_ssl.so:undefined Symbol:ssl_cmd_sslpassphrasedialog

So the internet looked for a long time of information, the results are not satisfactory. Finally, the installation mod_ssl.so need to specify information about OpenSSL.

Here's the right approach:

1. Enter [Source]/modules/ssl

2. Execution [apache]/bin/apxs-a-i-c-l/usr/lib/openssl/engines/lib-c *.C-LCRYPTO-LSSL-LDL

Restart the httpd.

Summary: Obviously the second method is troublesome, so I solemnly recommend using the first method: Recompile Apache, plus the –ENABLE-SSL option.

Apache installation mod_ssl.so appears undefined Symbol:ssl_cmd_sslpassphrasedialog error resolved