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xXxKrisxXx

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TCP Flags : Syn Question

« on: June 11, 2009, 02:14:47 PM »

Hello Eh.Net,

I had a quick question. I'm enrolled in an Ethical Hacking course this summer and it started already. Were reading a book called 'Hands-On Ethical Hacking & Network Defense' (I may possibly do a review on it...maybe not though cause it seems a little outdated). In chapter 2 it gives us a brief introduction to TCP / IP. I had a quick question, the author is stating the SYN flag stands for Synthesis. Correct me if I'm wrong but I thought the SYN stood for Synchronize? Is synthesis an alternate name use here or did the author have a typo?

Screen Shot of Chapter 2:


« Last Edit: June 11, 2009, 02:16:58 PM by xXxKrisxXx »	Logged

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BillV

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Re: TCP Flags : Syn Question

« Reply #1 on: June 11, 2009, 02:20:31 PM »

That's how I typically think of it (synchronize), but...

http://acronyms.thefreedictionary.com/SYN


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don

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Re: TCP Flags : Syn Question

« Reply #2 on: June 11, 2009, 02:34:18 PM »

Synchronization according to The TCP/IP Guide:

http://www.tcpipguide.com/free/t_TCPConnectionEstablishmentSequenceNumberSynchroniz.htm

Don


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xXxKrisxXx

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Re: TCP Flags : Syn Question

« Reply #3 on: June 11, 2009, 02:50:59 PM »

Sounds good. I appreciate the quick responses - I knew it was synchronize, I looked at Synthesis and grinned. Strange the author didn't catch that one, we'll just let that one slide?

-Kris


« Last Edit: June 11, 2009, 02:52:43 PM by xXxKrisxXx »	Logged

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BillV

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Re: TCP Flags : Syn Question

« Reply #4 on: June 11, 2009, 03:34:17 PM »

I was gonna check for errata real quick, but noticed it's also like this in the powerpoint:

http://ca.htc.mnscu.edu/ccis2410/CTPowerpoints/ch02.ppt


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former33t

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Re: TCP Flags : Syn Question

« Reply #5 on: June 11, 2009, 03:47:08 PM »

Amazing how this stuff gets past the editor. I was attending a lecture last week where the presenter was covering UDP scanning (more as a background item relating to a proprietary product). He was apparently confused about ICMP port unreachable messages. He talked about how ICMP messages are sent out to UPD ports to determine which ones are open ( Huh

?).

I tried to politely correct him, but he told me he was positive he was correct (and it was on his slides, so it must be correct.


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UNIX

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Re: TCP Flags : Syn Question

« Reply #6 on: June 12, 2009, 12:38:02 AM »

As I am reading quite a lot I see often such mistakes in books. As I am writing myself quite a lot too I could say that it may happen that the authors write for whatever reason something wrong although they know it better.
But normally this should not happen, especially not in a (reference)book.

As the others said too and you will find on most sites listed by google Synchronization is correct.


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