myNetWatchman KnowledgeBase
Pooling knowledge to
secure the internet.
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Telnet is the registered service for tcp/23 and is generally built-in to most
Unix servers (there are also Telnet servers add-ons for Windows). Telnet is
the basic means to achieve a terminal-based connection to a Unix-based host
via a network connection. It essentially emulates 'dumb' terminals that were
previous directly connected to mini-computers (e.g. VT100, etc..).
Hackers scan for hosts that respond to telnet, so that they can later go back
and attempt to login to the system using a password dictionary attack. If a
system admistrator has has not enforced strong passwords on all privledged accounts,
root access can often be obtained using this method.
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