보안세상

PORT LAYER NAME DESCRIPTION 1 TCP tcpmux TCP port service multiplexer 5 TCP rje Remote Job Entry 7 TCP echo Echo service 9 TCP discard Null service for connection testing 11 TCP systat System Status service for listing connected ports 13 TCP daytime Sends date and time to requesting host 17 TCP qotd Sends quote of the day to connected host 18 TCP msp Message Send Protocol 19 TCP chargen Characte..