Option Name:dns_defnames
Replaces:
Requires:
Default Value:Search for single-label domain names is disabled.
Suggested Config:

	Normally the RES_DEFNAMES resolver option is disabled
	(see res_init(3)).  This prevents caches in a hierarchy
	from interpreting single-component hostnames locally.  To allow
	Squid to handle single-component names, enable this option.