CentOS 7安装Stunnel和Squid_centos stunnel-优快云博客

本文链接：https://blog.youkuaiyun.com/sunny_98_98/article/details/122302416

本文详细介绍了如何在服务器上安装和配置Squid代理服务器，解决IPv4监听问题，以及如何安装和配置Stunnel来加密代理连接。在遇到Stunnel服务启动后立即结束的问题时，通过修改配置文件解决了问题。最后，设置了Firefox的代理设置，成功实现了安全的代理访问。

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Squid

在server上面安装squid的过程很简单。

yum install squid

然后启动squid：

service squid start

再查看是否运行：

$ service squid status
Redirecting to /bin/systemctl status squid.service
● squid.service - Squid caching proxy
   Loaded: loaded (/usr/lib/systemd/system/squid.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2022-01-04 14:26:36 CST; 5s ago
  Process: 10368 ExecStart=/usr/sbin/squid $SQUID_OPTS -f $SQUID_CONF (code=exited, status=0/SUCCESS)
  Process: 10362 ExecStartPre=/usr/libexec/squid/cache_swap.sh (code=exited, status=0/SUCCESS)
 Main PID: 10371 (squid)
    Tasks: 3
   Memory: 13.5M
   CGroup: /system.slice/squid.service
           ├─10371 /usr/sbin/squid -f /etc/squid/squid.conf
           ├─10373 (squid-1) -f /etc/squid/squid.conf
           └─10374 (logfile-daemon) /var/log/squid/access.log

Jan 04 14:26:36 iZj6c45po7f4v416r8l94nZ systemd[1]: Starting Squid caching proxy...
Jan 04 14:26:36 iZj6c45po7f4v416r8l94nZ squid[10371]: Squid Parent: will start 1 kids
Jan 04 14:26:36 iZj6c45po7f4v416r8l94nZ squid[10371]: Squid Parent: (squid-1) process 10373 started
Jan 04 14:26:36 iZj6c45po7f4v416r8l94nZ systemd[1]: Started Squid caching proxy.

再查看port是否在监听中：

$ netstat -lntpo | grep 312
tcp6       0      0 :::3128                 :::*                    LISTEN      9016/(squid-1)       off (0.00/0/0)

发现只有IPV6，没有IPV4的监听。这可怎么办？在网上搜索，发现需要修改squid的配置文件：

vim /etc/squid/squid.conf

找到http_port行，将http_port 3128改为如下：

# Squid normally listens to por