Nginx启动显示80端口占用问题的解决方案

1. 问题描述

在启动nginx服务的时候显示内容如下：

sudo systemctl status nginx

问题出现原因：

根据日志显示，Nginx 服务启动失败，主要原因是无法绑定到端口 80。这通常是由于该端口已被

其他进程占用而导致的。

2. 解决方案

要解决此问题，可以执行以下步骤：

确认端口 80 是否被其他进程占用。可以使用以下命令检查：

sudo netstat -tuln | grep :80

该命令会列出正在监听端口 80 的进程。如果有其他进程在使用该端口，显示如下：

打开配置文件：可以将80端口【默认端口】修改为 8080 端口【当然也可以是其他的，不过要记得去防火墙添加规则（即添加端口）】

比如我添加的是 8080 端口，则添加规则如下（红框内容）：

可以使用以下命令打开配置文件：

sudo nano /etc/nginx/sites-available/*

我的配置文件内容如下【版本不同当然配置文件不同】：

## # You should look at the following URLs in order to grasp a solid understanding # of Nginx configuration files in order to fully unleash the power of Nginx. # https://www.nginx.com/resources/wiki/start/ # https://www.nginx.com/resources/wiki/start/topics/tutorials/config_pitfalls/ # https://wiki.debian.org/Nginx/DirectoryStructure # # In most cases, administrators will remove this file from sites-enabled/ and # leave it as reference inside of sites-available where it will continue to be # updated by the nginx packaging team. # # This file will automatically load configuration files provided by other # applications, such as Drupal or WordPress. These applications will be made # available underneath a path with that package name, such as /drupal8. # # Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples. ## # Default server configuration # server { listen 80 default_server; listen [::]:80 default_server; # SSL configuration # # listen 443 ssl default_server; # listen [::]:443 ssl default_server; # # Note: You should disable gzip for SSL traffic. # See: https://bugs.debian.org/773332 # # Read up on ssl_ciphers to ensure a secure configuration. # See: https://bugs.debian.org/765782 # # Self signed certs generated by the ssl-cert package # Dont use them in a production server! # # include snippets/snakeoil.conf; root /var/www/html; # Add index.php to the list if you are using PHP index index.html index.htm index.nginx-debian.html; server_name _; location / { # First attempt to serve request as file, then # as directory, then fall back to displaying a 404. try_files $uri $uri/ =404; } # pass PHP scripts to FastCGI server # #location ~ .php$ { # include snippets/fastcgi-php.conf; # # # With php-fpm (or other unix sockets): # fastcgi_pass unix:/run/php/php7.4-fpm.sock; # # With php-cgi (or other tcp sockets): # fastcgi_pass 127.0.0.1:9000; #} # deny access to .htaccess files, if Apaches document root # concurs with nginxs one # #location ~ /.ht { # deny all; #} } # Virtual Host configuration for example.com # # You can move that to a different file under sites-available/ and symlink that # to sites-enabled/ to enable it. # #server { # listen 80; # listen [::]:80; # # server_name example.com; # # root /var/www/example.com; # index index.html; # # location / { # try_files $uri $uri/ =404; # } #}

将里面的代码模块

server { listen 80 default_server; listen [::]:80 default_server;

修改成

server { listen 8080 default_server; listen [::]:8080 default_server;

完成修改！【如果其他地方还有 80 的修改成 8080 即可】。

启动Nginx服务

sudo systemctl start nginx

设置Nginx服务自启动：

sudo systemctl enable nginx

验证Nginx是否运行：

sudo systemctl status nginx

如果一切正常，输出应该是“Active: active (running)”或者类似的信息。

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