php

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~$ php -i | grep php.ini
Configuration File (php.ini) Path => /etc/php/7.4/cli
Loaded Configuration File => /etc/php/7.4/cli/php.ini

# 重启php
~$ service php-fpm restart

nginx

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# 查看nginx的进程
~$ ps -aux | grep nginx
    root      3493  0.0  0.0 159060  1680 ?        Ss   09:09   0:00 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
    vagrant   3497  0.0  0.3 161788  7692 ?        S    09:09   0:00 nginx: worker process
    vagrant   3498  0.0  0.3 161788  6792 ?        S    09:09   0:00 nginx: worker process
    vagrant   3644  0.0  0.0  14428  1056 pts/1    S+   09:13   0:00 grep --color=auto nginx

# 验证nginx配置文件
~$ /usr/sbin/nginx -t
    nginx: [warn] the "user" directive makes sense only if the master process runs with super-user privileges, ignored in /etc/nginx/nginx.conf:1
    # nginx:配置文件/etc/nginx/nginx.conf语法没问题
    nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
    nginx: [emerg] open() "/run/nginx.pid" failed (13: Permission denied)
    nginx: configuration file /etc/nginx/nginx.conf test failed
    
# 重启nginx
~$ service nginx restart

mysql

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# 查看mysql安装目录
~$ which mysql
	/usr/bin/mysql
	
# 根据这个目录通过以下命令查看配置文件位置
~$ /usr/bin/mysql --verbose --help | grep -A 1 'Default options'
    Default options are read from the following files in the given order:
    # 服务器首先会读取/etc/my.cnf文件，如果发现该文件不存在，再依次尝试从后面的几个路径进行读取。
    /etc/my.cnf /etc/mysql/my.cnf ~/.my.cnf

# 重启mysql
~$ service mysqld restart

hosts

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~$ cat /etc/hosts
    127.0.0.1       localhost
    127.0.1.1       homestead       homestead

    # The following lines are desirable for IPv6 capable hosts
    ::1     localhost ip6-localhost ip6-loopback
    ff02::1 ip6-allnodes
    ff02::2 ip6-allrouters
    #### HOMESTEAD-SITES-BEGIN
    127.0.0.1       shop.test
    #### HOMESTEAD-SITES-END