After install Squid, I check listening ports:
netstat -tulpn | grep 3128
tcp 0 0 :::3128 :::* LISTEN 7798/(squid-1)
So, ipv6 is good, but me need a ipv4
vi /etc/squid/squid.conf
http_port 0.0.0.0:3128
Restart Squid and check again:
tcp 0 0 0.0.0.0:3128 :::* LISTEN 7798/(squid-1)
