参考 https://blog.csdn.net/dddgggd/article/details/122411969
1、安装Squid

yum install squid -y

2、编辑squid配置文件

cd /etc/squid/
vim squid.conf

3、修改内容为

dns_v4_first on
http_port 3228 # 修改端口，默认为 3128
http_access allow all # 添加 ，为允许所有ip

4、启动服务

systemctl start squid

5、加用户名密码

yum install httpd-tools –y
htpasswd -cd /etc/squid/passwd username     username改成自己的

6、编辑squid配置文件在最后面加上

auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid/passwd
auth_param basic children 5
auth_param basic realm Squid Basic Authentication
auth_param basic credentialsttl 2 hours
acl auth_users proxy_auth REQUIRED
http_access allow auth_users

7、重启Squid

systemctl restart squid