#查看linux系统版本信息
cat /etc/redhat-release
以上是操作系统的所有信息,补充下内核信息参数介绍:
3.10.0-514.26.2.el7.x86_64
3表示主版本号,有结构性变化才更改;10表示次版本号,新增功能才变化,一般奇数表示测试版,偶数表示开发板
0表示对版本的修订次数或者补丁包数;514代表编译的次数,每次编译可对少数程序优化或修改;el7用来表示版本的特殊信息,有较大的随意性;
x86_64表示64位.
#安装apache
yum install httpd http-devel
#启动apache服务
systemctl start httpd
#设置httpd服务器开机自启
[root@VM_0_8_centos local]# systemctl enable httpd
Created symlink from /etc/systemd/system/multi-user.target.wants/httpd.service to /usr/lib/systemd/system/httpd.service.
[root@VM_0_8_centos local]#
#查看服务状态
systemctl status httpd 加-l会有详细信息
[root@VM_0_8_centos local]# systemctl status httpd -l
● httpd.service - The Apache HTTP Server
Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
Active: active (running) since 二 2018-10-30 11:40:10 CST; 1h 23min ago
Docs: man:httpd(8)
man:apachectl(8)
Main PID: 22527 (httpd)
Status: "Total requests: 1; Current requests/sec: 0; Current traffic: 0 B/sec"
CGroup: /system.slice/httpd.service
├─22527 /usr/sbin/httpd -DFOREGROUND
├─22528 /usr/sbin/httpd -DFOREGROUND
├─22529 /usr/sbin/httpd -DFOREGROUND
├─22530 /usr/sbin/httpd -DFOREGROUND
├─22531 /usr/sbin/httpd -DFOREGROUND
├─22532 /usr/sbin/httpd -DFOREGROUND
└─25691 /usr/sbin/httpd -DFOREGROUND
10月 30 11:40:10 VM_0_8_centos systemd[1]: Starting The Apache HTTP Server...
10月 30 11:40:10 VM_0_8_centos httpd[22527]: AH00558: httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1. Set the 'ServerName' directive globally to suppress this message
10月 30 11:40:10 VM_0_8_centos systemd[1]: Started The Apache HTTP Server.
[root@VM_0_8_centos local]#
#开启防火墙
systemctl restart firewalld
当然,没有的话需要安装一下
yum install firewall
[root@VM_0_8_centos local]# firewall-cmd --permanent --zone=public --add-service=http
success
[root@VM_0_8_centos local]# firewall-cmd --permanent --zone=public --add-service=https
success
设置开机启动
systemctl enable firewalld
关闭防火墙
systemctl stop firewalld
取消开启启动
systemctl disable firewalld
查看状态
firewall-cmd --state
还有别的请查看帮助
firewall-cmd --help
最后所有的就绪后重新加载下
[root@VM_0_8_centos local]# firewall-cmd --reload
success
#确认80端口监听中
netstat -tulp
netstat -pan|grep 8080 查看8080端口被哪个进程所占用
netstat -aux|grep 2222 看到该端口被2222这个id的进程占用后,可以继续查看到底是什么程序占用的
后面的工作你懂得