Allowing DCC _receives_ via a squid proxy


Is there any way to easily and safely configure squid to allow incoming DCC receives?

My understanding is that in the DCC protocol, the sender sends a port to the recipient, who then connects to that port. My problem is that it appears that the sender can pick any arbitrary port, and I don't know if I want to allow CONNECTs to arbitrary ports [or do I… is there any harm there?]. Is there any way in this protocol for the recipient to specify a port?

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