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TCP Flags : Syn Question

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KrisTeason

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Post Thu Jun 11, 2009 2:14 pm

TCP Flags : Syn Question

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Ethical Hacking & Network Defense' (I may possibly do a review on it...maybe not though cause it seems a little outdated).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:
Image
Last edited by KrisTeason on Thu Jun 11, 2009 2:16 pm, edited 1 time in total.
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venom77

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Post Thu Jun 11, 2009 2:20 pm

Re: TCP Flags : Syn Question

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

http://acronyms.thefreedictionary.com/SYN
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don

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Post Thu Jun 11, 2009 2:34 pm

Re: TCP Flags : Syn Question

Synchronization according to The TCP/IP Guide:

http://www.tcpipguide.com/free/t_TCPCon ... hroniz.htm

Don
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KrisTeason

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Post Thu Jun 11, 2009 2:50 pm

Re: TCP Flags : Syn Question

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 edited by KrisTeason on Thu Jun 11, 2009 2:52 pm, edited 1 time in total.
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venom77

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Post Thu Jun 11, 2009 3:34 pm

Re: TCP Flags : Syn Question

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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Post Thu Jun 11, 2009 3:47 pm

Re: TCP Flags : Syn Question

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 (????). 

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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Post Fri Jun 12, 2009 12:38 am

Re: TCP Flags : Syn Question

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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