安装apache和php报错
服务器类型：
[root@guidang htdocs]# uname -a
Linux guidang.dns.com.cn 2.6.33.5 #1 SMP Tue Jun 8 20:38:22 CST 2010 i686 i686 i386 GNU/Linux
循规蹈矩的按操作步骤安装完之后，进行测试，就出现了如下报错：
[root@guidang php-5.2.3]# /usr/local/apache/bin/apachectl start
httpd: Syntax error on line 53 of /usr/local/apache/conf/httpd.conf: Cannot load /usr/local/apache/modules/libphp5.so into server: /usr/local/apache/modules/libphp5.so: cannot restore segment prot after reloc: Permission denied
在网上找了一些解决办法
1关闭SELINUX的方法:
vi /etc/selinux/config 将SELINUX=enforcing 改成SELINUX=disabled 需要重启
这个方法可能会对服务器带来风险。
2不关闭SELINUX的方法:
# setenforce 0
# chcon -c -v -R -u system_u -r object_r -t textrel_shlib_t /usr/local/apache/modules/libphp5.so
找到解决办法就尝试了一下：
[root@guidang conf]# /usr/sbin/setenforce 0
[root@guidang conf]# chcon -c -v -R -u system_u -r object_r -t textrel_shlib_t /usr/local/apache/modules/libphp5.so
context of /usr/local/apache/modules/libphp5.so changed to system_u:object_r:textrel_shlib_t
再次启动apache，失败
[root@guidang conf]# /usr/local/apache/bin/apachectl start
httpd: bad user name vpopmail
这个apache是我们自己编译过的，是按照我们的生产要求来的，以vpopmail的身份进行启动的
[root@guidang conf]# /usr/sbin/adduser vpopmail
第三次启动仍然失败
[root@guidang conf]# /usr/local/apache/bin/apachectl start
httpd: bad group name vchkpw
原来是vpopmail用户属于vchkpw组
[root@guidang conf]# /usr/sbin/groupadd vchkpw
启动成功：
[root@guidang conf]# /usr/local/apache/bin/apachectl start
检查进程：
[root@guidang conf]# ps -aux |grep http|grep -v grep
Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.7/FAQ
root 21103 0.0 0.2 19316 8424 ? Ss 13:52 0:00 /usr/local/apache/bin/httpd -k start
vpopmail 22383 0.0 0.1 19316 7348 ? S 14:03 0:00 /usr/local/apache/bin/httpd -k start
vpopmail 22384 0.0 0.1 19316 7328 ? S 14:03 0:00 /usr/local/apache/bin/httpd -k start
还有之前遇到的一些apache启动问题，不过这个问题应该是比较少见的
[root@gbackup2 htdocs]# /usr/local/apache/bin/apachectl start
httpd: apr_sockaddr_info_get() failed for gbackup2.dns.com.cn
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName
查看结果是：
[root@gbackup2 htdocs]# cat /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=gbackup2.dns.com.cn
GATEWAY=119.254.72.129
[root@gbackup2 htdocs]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 gbackup.dns.com.cn gbackup localhost.localdomain localhost
::1 localhost6.localdomain6 localhost6
以上两个配置文件中的主机名不一致，而运行一下命令可以得知hosts文件配置错了
[root@gbackup2 htdocs]# hostname
gbackup2.dns.com.cn