Option Name:htcp_access
Replaces:
Requires:--enable-htcp
Default Value:Deny, unless rules exist in squid.conf.
Suggested Config:
# Allow HTCP queries from local networks only
#htcp_access allow localnet
#htcp_access deny all

	Allowing or Denying access to the HTCP port based on defined
	access lists

	htcp_access  allow|deny [!]aclname ...

	See also htcp_clr_access for details on access control for
	cache purge (CLR) HTCP messages.

	NOTE: The default if no htcp_access lines are present is to
	deny all traffic. This default may cause problems with peers
	using the htcp option.

	This clause only supports fast acl types.
	See https://wiki.squid-cache.org/SquidFaq/SquidAcl for details.