1. yum -y update

2. yum install openssl

3. yum install squid

4. vim /etc/squid/squid.conf

5. tail -f /var/log/squid/access.log

6. systemctl start squid

7. systemctl status squid

8. ss -nlp | grep squid | grep 3128

dns_nameservers 8.8.8.8 8.8.4.4