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下面是linux下安装apache的完整代码，系统是redhat5.5

下载httpd-2.2.6.tar.bz2 把httpd-2.2.6.tar.bz2放到/soft 下

[root@localhost ~]#cd /soft

[root@localhost soft]#tar jxvf httpd-2.2.6.tar.bz2 //解压apache的压缩包

[root@localhost soft]#cd httpd-2.2.6 //定位到httpd-2.2.6 文件夹下

[root@localhost httpd-2.2.6]#ls //查看显示httpd-2.2.6 文件夹下内容

[root@localhost httpd-2.2.6]#./configure --help | more //查看安装apache配置参数

[root@localhost httpd-2.2.6]#./configure --prefix=/usr/local/apache --enable-so // 配置apache路径

[root@localhost httpd-2.2.6]#make //编译apache

[root@localhost httpd-2.2.6]#make install //安装apache

[root@localhost httpd-2.2.6]#cd /usr/local/apache //进入apache的目录

[root@localhost apache]# cd conf/

[root@localhost conf]#cp -a httpd.conf httpd.conf- //备份apache配置文件

[root@localhost conf]#chkconfig --list httpd //查看httpd服务是否已存在

[root@localhost conf]#chkconfig httpd off //关闭系统自带了httpd的服务，如果存在httpd服务

[root@localhost conf]#service httpd status //查看自带httpd服务状态

[root@localhost conf]#/usr/local/apache/bin/apachectl -k start //linux启动apache命令

[root@localhost conf]#netstat -an | grep :80 //查看linux80端口是否开启

[root@localhost conf]#ps -aux | grep httpd //linux下查看apache进程

[root@localhost conf]#cd ../..

[root@localhost local]#cp /usr/local/apache/bin/apachectl /etc/rc.d/init.d/apache //拷贝apache启动脚本

[root@localhost local]#vi /etc/rc.d/init.d/apache // 这里是编辑apache启动脚本

在开头的#！/bin/sh 下面加上

#chkconfig: 2345 85 15

[root@localhost local]#chkconfig --add apache //添加apache服务

[root@localhost local]#chkconfig --list apache //列出apache服务

[root@localhost local]#service apache stop //停止apache服务

[root@localhost local]#netstat -an | grep :80 //查看linux的80端口是否关闭

[root@localhost local]#ps -aux | grep httpd //查看是否存在httpd服务，若果之前自带httpd服务启动的话会导致新添加的apache服务启动失败

[root@localhost local]#service apache start //启动apache服务

打开你的服务器ip地址，看看是否出现了tomcat的默认首页，如果出现的话，那么恭喜你

linux下安装apache已经成功了