squid.conf configuration for the external ACL should be:
If the helper program finds a matching username/ip in the configuration file, it returns
OK , otherwise it returns
The configuration file format is as follows:
ip_addr is a dotted quad format IP address, the
netmask must be in dotted quad format too.
When the second parameter is prefixed with an
@ , the program will lookup the
/etc/group file entry for the specified username.
There are other two directives,
NONE , which mean
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