配置如下：

# Squid normally listens to port 3128 always_direct allow all ssl_bump bump all sslproxy_cert_error allow all http_port 3128 ssl-bump cert=/etc/squid/squid.pem key=/etc/squid/squid.pem generate-host-certificates=on options=NO_SSLv2 #http_port 3128  cache_peer 127.0.0.1 parent 10809 0 no-query never_direct allow all 

我测试了一下，它并没有通过 127.0.0.1:10809 上网？但是让我改成如下时，却生效了。

http_port 3128  cache_peer 127.0.0.1 parent 10809 0 no-query never_direct allow all 

这是为什么？

完整配置

# # Recommended minimum configuration: #  # Example rule allowing access from your local networks. # Adapt to list your (internal) IP networks from where browsing # should be allowed acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network 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 #  # 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 always_direct allow all ssl_bump bump all sslproxy_cert_error allow all http_port 3128 ssl-bump cert=/etc/squid/squid.pem key=/etc/squid/squid.pem generate-host-certificates=on options=NO_SSLv2 #http_port 3128  cache_peer 127.0.0.1 parent 10809 0 no-query never_direct allow all  # Uncomment and adjust the following to add a disk cache directory. cache_dir ufs /var/cache/squid 100 16 256  # Leave coredumps in the first cache dir coredump_dir /var/cache/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  dns_nameservers 8.8.8.8