centos 5.0selinux 为开启状态apache 2.2.8php 5.0安装完成之后，apache无法加载php模块。错误如下：

httpd: Syntax error on line 232 of /usr/local/apache2/conf/httpd.conf: API module structure 'php5_module' in file /usr/local/apache2/modules/libphp5.so is garbled - expected signature 41503232 but saw 41503230 - perhaps this is not an Apache module DSO, or was compiled for a different Apache version?

相信提示大伙都能看懂。网上有解决办法就是关闭selinux 下面讲另二种方法一：按提示操作：(大体意思是将libphp5.so加入selinux系统内)

#tail /var/log/messages

May 23 10:08:15 nagios setroubleshoot:      SELinux is preventing /usr/local/apache2/bin/httpd from loading /usr/local/apache2/modules/libphp5.so which requires text relocation.      For complete SELinux messages. run sealert -l e693621e-145b-4431-bdcb-68b3883f1ac8

# sealert -l e693621e-145b-4431-bdcb-68b3883f1ac8

Summary

SELinux is preventing /usr/local/apache2/bin/httpd from loading

/usr/local/apache2/modules/libphp5.so which requires text relocation.

Detailed Description

The /usr/local/apache2/bin/httpd application attempted to load

/usr/local/apache2/modules/libphp5.so which requires text relocation.  This

is a potential security problem. Most libraries do not need this permission.

Libraries are sometimes coded incorrectly and request this permission.  The

[url]http://people.redhat.com/drepper/selinux-mem.html[/url] web page explains how to

remove this requirement.  You can configure SELinux temporarily to allow

/usr/local/apache2/modules/libphp5.so to use relocation as a workaround,

until the library is fixed. Please file a

[url]http://bugzilla.redhat.com/bugzilla/enter_bug.cgi[/url] against this package.

Allowing Access

If you trust /usr/local/apache2/modules/libphp5.so to run correctly, you can

change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t

/usr/local/apache2/modules/libphp5.so"The following command will allow this access:

chcon -t textrel_shlib_t /usr/local/apache2/modules/libphp5.so

Additional Information

Source Context                user_u:system_r:unconfined_t

Target Context                system_u:object_r:lib_t

Target Objects                /usr/local/apache2/modules/libphp5.so [ file ]

Affected RPM Packages

Policy RPM                    selinux-policy-2.4.6-30.el5

Selinux Enabled               True

Policy Type                   targeted

MLS Enabled                   True

Enforcing Mode                Permissive

Plugin Name                   plugins.allow_execmod

Host Name                     nagios

Platform                      Linux nagios 2.6.18-8.el5 #1 SMP Thu Mar 15

19:57:35 EDT 2007 i686 i686

Alert Count                   3

Line Numbers

Raw Audit Messages

avc: denied { execmod } for comm="httpd" dev=sda3 egid=0 euid=0

exe="/usr/local/apache2/bin/httpd" exit=0 fsgid=0 fsuid=0 gid=0 items=0

name="libphp5.so" path="/usr/local/apache2/modules/libphp5.so" pid=31706

scontext=user_u:system_r:unconfined_t:s0 sgid=0

subj=user_u:system_r:unconfined_t:s0 suid=0 tclass=file

tcontext=system_u:object_r:lib_t:s0 tty=pts0 uid=0

注意红色字体：大体的意思是 您需要改变libphp5.so 的相应权限。使用命令：chcon -t textrel_shlib_t /usr/local/apache2/modules/libphp5.so我运气不好哈，加入后还是启不来：

httpd: Syntax error on line 232 of /usr/local/apache2/conf/httpd.conf: API module structure 'php5_module' in file /usr/local/apache2/modules/libphp5.so is garbled - expected signature 41503232 but saw 41503230 - perhaps this is not an Apache module DSO, or was compiled for a different Apache version?

二：大家看最后一行。or was compiled for a different Apache version?

或编译不同的apache版本。

OK  换成 apache 2.0 一切搞定。

关于如上的方法，启不动，查看日志，再按日志里的命令操作，接着又会得到提示。继续操作。就可以完成安装。

net-snmp 在selinux开启的状态下也无法启动。需要用上面的方法来解决。或者直接关闭selinux 官网不推荐这么做。

一点小技巧。就到这吧。

本文转自守住每一天51CTO博客，原文链接：http://blog.51cto.com/liuyu/78389，如需转载请自行联系原作者