From: Nathan Eisenberg <nathan@atlasnetworks.us> Subject: RE: Synology Disk DS211J Date: Thu, 29 Sep 2011 21:58:23 +0000
And this is why the prudent home admin runs a firewall device he or she can trust, and has a "default deny" rule in place even for outgoing connections.
- Matt
The prudent home admin has a default deny rule for outgoing HTTP to port 80? I doubt it.
No, the prudent nd knowledgable prudent home admin does not have default deny rule just for outgoing HTTP to port 80. He has a defult deny rule for _everything_. Every internal source address, and every destination port. Then he pokes holes in that 'deny everything' for specific machines to make the kinds of external connections that _they_ need to make. Blocking outgoing port 80, _except_ from an internal proxy server, is not necessrily a bad idea. If the legitimte web clients are all configured to use the proxy server, then _direct_ external connection attempts are an indication that something "not so legitimate" may be runningunning.