December 2004
Intermediate to advanced
448 pages
16h 40m
English
Content preview from Firewalls
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Note:
9.2 Telnet
Telnet access allows remote access to computers via a command
prompt, or shell, style of access. Both UNIX and Windows systems
run services that allow this style of access.
Both the Windows command (DOS) window and Internet
Explorer offer the ability to run Telnet. To start Telnet in a com-
mand window, simply type telnet servername at the prompt. The
computer will then attempt to request the Telnet service from port
23 of the host server. If Telnet has been disabled, it should not
respond. If it has been enabled, you will be prompted for a login and
password. Many servers offer free Telnet access to anyone who
comes knocking. For example, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.