Linux Centos安装及卸载Apache

一.卸载

1.查看有没有安装apache,出现下面信息则安装过

[root@localhost ~]# rpm -qa|grep httpd
httpd-2.2.15-53.el6.centos.x86_64
httpd-tools-2.2.15-53.el6.centos.x86_64

2.执行卸载命令,出现下面信息则要先卸载 gnome-user-share

[root@localhost ~]# rpm -e httpd
error: Failed dependencies:
    httpd >= 2.2.0 is needed by (installed) gnome-user-share-2.28.2-3.el6.x86_64

3.卸载 gnome-user-share

[root@localhost ~]# rpm -e gnome-user-share

4.卸载完成后再执行卸载命令

[root@localhost ~]# rpm -e httpd

5.查看是否还存在其他apache包,用命令卸载

[root@localhost backend]# rpm -qa|grep httpd
httpd-tools-2.2.15-53.el6.centos.x86_64
#用命令 rpm -e xxxx --nodeps 命令卸载
[root@localhost backend]# rpm -e httpd-tools-2.2.15-53.el6.centos.x86_64 --nodeps

二.安装

1.安装命令

yum install httpd

2.查看,如果出现下面信息则安装完成

[root@localhost ~]# rpm -qa httpd
httpd-2.2.15-53.el6.centos.x86_64

3.启动

#启动
[root@localhost ~]# service httpd start
Starting httpd:                                            [  OK  ]
#查看进程
[root@localhost ~]# ps -ef|grep httpd
root      3710     1  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3713  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3714  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3715  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3716  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3717  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3718  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3719  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
apache    3720  3710  0 20:58 ?        00:00:00 /usr/sbin/httpd
root      3723  3634  0 20:58 pts/2    00:00:00 grep httpd

4.修改apache的路径和默认80端口

(1)修改配置文件

[root@localhost ~]# vi /etc/httpd/conf/httpd.conf

(2)修改端口号,改为82端口

(3)添加ServerName属性,localhost后面跟上修改的端口号82

(4)修改apache的默认目录,以 /usr/java/apache 路径为例

(5)启动apache失败,出现下面错误,则要安装 semanage

[root@localhost /]# service httpd start
Starting httpd: (13)Permission denied: make_sock: could not bind to address [::]:82
(13)Permission denied: make_sock: could not bind to address 0.0.0.0:82
no listening sockets available, shutting down
Unable to open logs
                                                           [FAILED]

(6)安装 semanage 命令

yum provides /usr/sbin/semanage

(7)安装 policycoreutils-python 命令

yum -y install policycoreutils-python

(8)查看端口,没有包含82端口,则要手动添加

[root@localhost ~]# semanage port -l|grep http
http_cache_port_t              tcp      3128, 8080, 8118, 8123, 10001-10010
http_cache_port_t              udp      3130
http_port_t                    tcp      80, 81, 443, 488, 8008, 8009, 8443, 9000
pegasus_http_port_t            tcp      5988
pegasus_https_port_t           tcp      5989

(9)添加82端口

[root@localhost ~]# semanage port -a -t http_port_t -p tcp 82
[root@localhost ~]# semanage port -l|grep http
http_cache_port_t              tcp      3128, 8080, 8118, 8123, 10001-10010
http_cache_port_t              udp      3130
http_port_t                    tcp      82, 80, 81, 443, 488, 8008, 8009, 8443, 9000
pegasus_http_port_t            tcp      5988
pegasus_https_port_t           tcp      5989

(10)添加成功重启apache

[root@localhost ~]# service httpd restart
Stopping httpd:                                            [  OK  ]
Starting httpd:                                            [  OK  ]
[root@localhost ~]# ps -ef|grep httpd
root      4402     1  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4405  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4406  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4407  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4408  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4409  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4410  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4411  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
apache    4412  4402  0 21:21 ?        00:00:00 /usr/sbin/httpd
root      4415  4226  0 21:22 pts/1    00:00:00 grep httpd