IT Trenches:

protocol analysis


February 2, 2009  5:15 PM

ARP as a network auditing tool



Posted by: Troy Tate
ARP, education, Laura Chappell, protocol, protocol analysis, scanning, testing, toolkit, tools, training, video

ARP - or Address Resolution Protocol is a necessary element for network traffic. Per Wikipedia: "In computer networking,...

January 9, 2009  4:38 PM

PROTOCOL analysis vs protocol analysis (with a small p)



Posted by: Troy Tate
Microsoft, Microsoft Exchange, network monitor, OSI model, patches, protocol analysis, SMTP, tcp, wireshark

Recently we had an issue at a site where outbound messages larger than 1MB were backing up in the outbound message queue. The messages were tagged with a 421 4.4.2 Connection dropped error. This was a puzzling issue since the smart relay host was on the local LAN, and in fact, on...


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