我有一个使用父机器的 Squid 服务器（192.168.1.18) 访问 A 国，而 Squid 上的互联网连接（192.168.1.19) 属于国家 B。我需要经过代理身份验证的用户使用 Squid 通过 A（父）链接访问特定 IP，其余请求（包括本地和外部请求）均被阻止或丢弃。
下面是我的配置，正如我上面提到的，它不起作用，我的大脑停止工作了！请帮助和协助：
cache_peer 192.168.1.18 parent 10809 0 no-query no-digest
auth_param basic program /usr/lib64/squid/basic_ncsa_auth /etc/squid/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
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 0.0.0.1-0.255.255.255 # RFC 1122 "this" network (LAN)
acl localnet src 10.0.0.0/8 # RFC 1918 local private network (LAN)
acl localnet src 100.64.0.0/10 # RFC 6598 shared address space (CGN)
acl localnet src 169.254.0.0/16 # RFC 3927 link-local (directly plugged) machines
acl localnet src 172.16.0.0/12 # RFC 1918 local private network (LAN)
acl localnet src 192.168.0.0/16 # RFC 1918 local private network (LAN)
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines
acl SSL_ports port 443
acl Safe_ports port 80 # http
# acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
# acl Safe_ports port 70 # gopher
# acl Safe_ports port 210 # wais
# acl Safe_ports port 1025-65535 # unregistered ports
# acl Safe_ports port 280 # http-mgmt
# acl Safe_ports port 488 # gss-http
# acl Safe_ports port 591 # filemaker
# acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
#
# Recommended minimum Access Permission configuration:
#
# Deny requests to certain unsafe ports
http_access deny !Safe_ports
# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports
# Only allow cachemgr access from localhost
http_access allow localhost manager
http_access deny manager
# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost
#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#
acl GOOD dstdomain (Domain1) (Domain2) (Domain3)
acl BAD dst all
never_direct deny BAD
never_direct deny !GOOD
always_direct deny BAD
always_direct deny !GOOD
http_access allow GOOD
http_access deny !GOOD
http_access deny BAD
# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet
http_access allow localhost
# And finally deny all other access to this proxy
http_access deny all
# Squid normally listens to port 3128
http_port 3128
# Uncomment and adjust the following to add a disk cache directory.
#cache_dir ufs /var/spool/squid 100 16 256
# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid
#
# Add any of your own refresh_pattern entries above these.
#
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
谢谢你！