linux下nginx首次安装远程无法访问

蔚落 2021-09-15 11:58 458阅读 0赞

## > 因为是问题、花时间、所以进行记录一番 ##

#### （一）安装环境：虚拟机centos7系统 ####

对于nginx在linux下的安装卸载是装了又卸，卸了又装。远程访问就是访问不了，周五的时候能访问，到后面又不能访问了。其实这里可以有些方法的。

#### （二）验证nginx是否安装成功 ####

首先根据这篇文章进行安装，使用源的方式安装：

[centos7安装nginx][centos7_nginx]

#### （三）本地机器测试nginx是否能正常启动 ####

所谓的本地机器，就是你安装了nginx软件的那一台机器，输入命令：

curl http://192.168.241.129/

这里的ip地址为你本机的ip地址

然后会有结果：

[root@localhost nginx-1.12.1]# curl http://192.168.241.129/
    <!DOCTYPE html>
    <html>
    <head>
    <title>Welcome to nginx!</title>
    <style> body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style>
    </head>
    <body>
    <h1>Welcome to nginx!</h1>
    <p>If you see this page, the nginx web server is successfully installed and
    working. Further configuration is required.</p>
    
    <p>For online documentation and support please refer to
    <a href="http://nginx.org/">nginx.org</a>.<br/>
    Commercial support is available at
    <a href="http://nginx.com/">nginx.com</a>.</p>
    
    <p><em>Thank you for using nginx.</em></p>
    </body>
    </html>
    [root@localhost nginx-1.12.1]#

以上验证了本地是已经安装成功的了，

但是我们远程访问的时候就是访问不了，一直说拒绝访问，那就是可能真的跟端口，防火墙有关了。

#### （四）防火墙、端口开启设置 ####

打开80端口：  
（1）

vi /etc/sysconfig/iptables

（2）

-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT

如图：

![image.png][]

![image.png][image.png 1]

#### （五）远程访问： ####

![image.png][image.png 2]

## （六）以下是整个成功安装的过程： ##

[root@localhost nginx-1.12.1]# ip addr
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
        link/ether 00:0c:29:ac:77:31 brd ff:ff:ff:ff:ff:ff
        inet 192.168.241.129/24 brd 192.168.241.255 scope global dynamic ens33
           valid_lft 1732sec preferred_lft 1732sec
        inet6 fe80::5afb:ed05:b1f5:5d3a/64 scope link 
           valid_lft forever preferred_lft forever
    [root@localhost nginx-1.12.1]# systemctl start firewalld.servic
    Failed to start firewalld.servic.service: Unit not found.
    [root@localhost nginx-1.12.1]# curl http://192.168.241.129/
    <!DOCTYPE html>
    <html>
    <head>
    <title>Welcome to nginx!</title>
    <style> body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style>
    </head>
    <body>
    <h1>Welcome to nginx!</h1>
    <p>If you see this page, the nginx web server is successfully installed and
    working. Further configuration is required.</p>
    
    <p>For online documentation and support please refer to
    <a href="http://nginx.org/">nginx.org</a>.<br/>
    Commercial support is available at
    <a href="http://nginx.com/">nginx.com</a>.</p>
    
    <p><em>Thank you for using nginx.</em></p>
    </body>
    </html>
    [root@localhost nginx-1.12.1]# vi /etc/sysconfig/iptables
    [root@localhost nginx-1.12.1]# cd /etc/sysconfig/iptables
    bash: cd: /etc/sysconfig/iptables: No such file or directory
    [root@localhost nginx-1.12.1]# netstat -anop | grep 80
    tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      2226/nginx: master   off (0.00/0/0)
    unix  2      [ ACC ]     STREAM     LISTENING     13780    1/systemd            /run/lvm/lvmpolld.socket
    unix  3      [ ]         STREAM     CONNECTED     14680    496/systemd-journal  /run/systemd/journal/stdout
    unix  2      [ ]         DGRAM                    104613   48094/su             
    unix  3      [ ]         STREAM     CONNECTED     20180    1278/master          
    unix  2      [ ]         DGRAM                    19137    1280/qmgr            
    [root@localhost nginx-1.12.1]# netstat -anop | grep 80
    tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      2226/nginx: master   off (0.00/0/0)
    unix  2      [ ACC ]     STREAM     LISTENING     13780    1/systemd            /run/lvm/lvmpolld.socket
    unix  3      [ ]         STREAM     CONNECTED     14680    496/systemd-journal  /run/systemd/journal/stdout
    unix  2      [ ]         DGRAM                    104613   48094/su             
    unix  3      [ ]         STREAM     CONNECTED     20180    1278/master          
    unix  2      [ ]         DGRAM                    19137    1280/qmgr            
    [root@localhost nginx-1.12.1]# curl http://192.168.241.129/
    <!DOCTYPE html>
    <html>
    <head>
    <title>Welcome to nginx!</title>
    <style> body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style>
    </head>
    <body>
    <h1>Welcome to nginx!</h1>
    <p>If you see this page, the nginx web server is successfully installed and
    working. Further configuration is required.</p>
    
    <p>For online documentation and support please refer to
    <a href="http://nginx.org/">nginx.org</a>.<br/>
    Commercial support is available at
    <a href="http://nginx.com/">nginx.com</a>.</p>
    
    <p><em>Thank you for using nginx.</em></p>
    </body>
    </html>
    [root@localhost nginx-1.12.1]# sudo yum install iptables-services 
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
     * base: mirror.lzu.edu.cn
     * extras: mirrors.cn99.com
     * updates: mirrors.cn99.com
    Resolving Dependencies
    --> Running transaction check
    ---> Package iptables-services.x86_64 0:1.4.21-24.1.el7_5 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    ================================================================================================================
     Package                        Arch                Version                          Repository            Size
    ================================================================================================================
    Installing:
     iptables-services              x86_64              1.4.21-24.1.el7_5                updates               51 k
    
    Transaction Summary
    ================================================================================================================
    Install  1 Package
    
    Total download size: 51 k
    Installed size: 25 k
    Is this ok [y/d/N]: y
    Downloading packages:
    iptables-services-1.4.21-24.1.el7_5.x86_64.rpm                                           |  51 kB  00:00:00     
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : iptables-services-1.4.21-24.1.el7_5.x86_64                                                   1/1 
      Verifying  : iptables-services-1.4.21-24.1.el7_5.x86_64                                                   1/1 
    
    Installed:
      iptables-services.x86_64 0:1.4.21-24.1.el7_5                                                                  
    
    Complete!
    [root@localhost nginx-1.12.1]# vi /etc/sysconfig/iptables 
    [root@localhost nginx-1.12.1]# systemctl stop firewalld
    [root@localhost nginx-1.12.1]# systemctl stop iptalbes
    Failed to stop iptalbes.service: Unit iptalbes.service not loaded.
    [root@localhost nginx-1.12.1]# vi /etc/selinux/config 
    [root@localhost nginx-1.12.1]# curl http://192.168.241.129/
    <!DOCTYPE html>
    <html>
    <head>
    <title>Welcome to nginx!</title>
    <style> body { width: 35em; margin: 0 auto; font-family: Tahoma, Verdana, Arial, sans-serif; } </style>
    </head>
    <body>
    <h1>Welcome to nginx!</h1>
    <p>If you see this page, the nginx web server is successfully installed and
    working. Further configuration is required.</p>
    
    <p>For online documentation and support please refer to
    <a href="http://nginx.org/">nginx.org</a>.<br/>
    Commercial support is available at
    <a href="http://nginx.com/">nginx.com</a>.</p>
    
    <p><em>Thank you for using nginx.</em></p>
    </body>
    </html>
    [root@localhost nginx-1.12.1]#

更多文章请访问：[https://blog.csdn.net/xudailong\_blog][https_blog.csdn.net_xudailong_blog]

[centos7_nginx]: https://blog.csdn.net/xudailong_blog/article/details/80428241
[image.png]: /images/20210529/3590386692e44c298a7ec10bd6f56da0.png
[image.png 1]: /images/20210529/254a250914784b2da60ee5c547536eec.png
[image.png 2]: /images/20210529/1aa0747650394b0b9173c3dfd8446aaf.png
[https_blog.csdn.net_xudailong_blog]: https://blog.csdn.net/xudailong_blog