Re: [Haifux] Lecture proposal : how Ethernet works ?

2008-02-05 Thread Shahar Dag
Hi Near

I will be glade to here such lecture.
It will be grate if you explain a bit about how to use ethereal.
Please noteice that sniffing of the cs network might not be welcomed by the 
system team of cs

shahar dag
- Original Message - 
From: "Nir Abulaffio" <[EMAIL PROTECTED]>
To: "Haifux" <>
Sent: Tuesday, February 05, 2008 5:30 PM
Subject: [Haifux] Lecture proposal : how Ethernet works ?


> Since I have heared tens of lectures in Haifux, I propose to give a
> lecture on the only thing I can think will interest the audience:
> An explanation of how Ethernet networks work by giving examples using
> etherheal (today wireshark) which is an open source sniffer.
> I can show the bits in the header of every packet and how they help to
> bring the Internet to work. What I will talk about (if at all) depends on
> feedback I get to this mail.
> -- possible items --
> A basic network demonstration, from the point of view of the network,
> not from a specific host,
> with demonstrations using etherheal (today wireshark)
> 1. What is an ip packet ? and what is not (e.g. ARP)
> 2. Difference between tcp and udp. What is icmp,igmp.
> 3. Terms like MTU,TTL .
> 4. Examples of many different problems with actual examples from
>   a working environment such as a university campus.
> 5. What happens if MTU is wrong.
> 6. How does traceroute work.
> 7. What is a SYN attack.
> 8. What is the difference between a switch and a router.
> 9. What is the routing table in a computer, (a host) and what is the
>   routing table in a router. and a few words about routing protocols.
> --
> Nir.
> ___
> Haifux mailing list
> Haifux@haifux.org
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> 

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Re: [Haifux] Lecture proposal : how Ethernet works ?

2008-02-05 Thread Sorana Fraier
I am interested.

On Feb 5, 2008 5:30 PM, Nir Abulaffio <[EMAIL PROTECTED]> wrote:

> Since I have heared tens of lectures in Haifux, I propose to give a
> lecture on the only thing I can think will interest the audience:
> An explanation of how Ethernet networks work by giving examples using
> etherheal (today wireshark) which is an open source sniffer.
> I can show the bits in the header of every packet and how they help to
> bring the Internet to work. What I will talk about (if at all) depends on
> feedback I get to this mail.
> -- possible items --
> A basic network demonstration, from the point of view of the network,
> not from a specific host,
> with demonstrations using etherheal (today wireshark)
> 1. What is an ip packet ? and what is not (e.g. ARP)
> 2. Difference between tcp and udp. What is icmp,igmp.
> 3. Terms like MTU,TTL .
> 4. Examples of many different problems with actual examples from
>   a working environment such as a university campus.
> 5. What happens if MTU is wrong.
> 6. How does traceroute work.
> 7. What is a SYN attack.
> 8. What is the difference between a switch and a router.
> 9. What is the routing table in a computer, (a host) and what is the
>   routing table in a router. and a few words about routing protocols.
> --
> Nir.
> ___
> Haifux mailing list
> Haifux@haifux.org
> http://hamakor.org.il/cgi-bin/mailman/listinfo/haifux
>
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Re: [Haifux] Lecture proposal : how Ethernet works ?

2008-02-05 Thread Hai Zaar
On Feb 5, 2008 5:30 PM, Nir Abulaffio <[EMAIL PROTECTED]> wrote:
> Since I have heared tens of lectures in Haifux, I propose to give a
> lecture on the only thing I can think will interest the audience:
> An explanation of how Ethernet networks work by giving examples using
> etherheal
I'm interested to hear about this. I'd like to see more examples of
real-world problems (and their solutions)
concerning TCP/IP traffic in big networks like Technion campus.
May be although a bit info about general strategies for discovering
and fixing problems like this: "Hi, I live in Canada dorms and my
Internet occasionally experiences slowness".

-- 
Zaar
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[Haifux] Lecture proposal : how Ethernet works ?

2008-02-05 Thread Nir Abulaffio
Since I have heared tens of lectures in Haifux, I propose to give a
lecture on the only thing I can think will interest the audience:
An explanation of how Ethernet networks work by giving examples using
etherheal (today wireshark) which is an open source sniffer.
I can show the bits in the header of every packet and how they help to
bring the Internet to work. What I will talk about (if at all) depends on
feedback I get to this mail.
-- possible items --
A basic network demonstration, from the point of view of the network,
not from a specific host,
with demonstrations using etherheal (today wireshark)
1. What is an ip packet ? and what is not (e.g. ARP)
2. Difference between tcp and udp. What is icmp,igmp.
3. Terms like MTU,TTL .
4. Examples of many different problems with actual examples from
   a working environment such as a university campus.
5. What happens if MTU is wrong.
6. How does traceroute work.
7. What is a SYN attack.
8. What is the difference between a switch and a router.
9. What is the routing table in a computer, (a host) and what is the
   routing table in a router. and a few words about routing protocols.
--
Nir.
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Re: [Haifux] Git Lecture discussion

2008-02-05 Thread Oron Peled
On Tuesday, 5 בFebruary 2008, Ohad Lutzky wrote:
> Regarding keyword substituion: It turns out that Linus thinks it's a
> horrible idea: http://kerneltrap.org/mailarchive/git/2006/10/9/223932

His argument is that it may destroy binary files.

This is bogus since keyword-substitution is *off* by default.
It will occur only for files that were explicitly marked for
substitution. For example in subversion:

   svn propset svn:keywords "Id Author Revision" *.h *.c

As a substitute (pun intended) for the lack in this feature he gives
a hand crafted, build system dependent, manual (i.e: error prone) method.

What a lame excuse.

[the .sig came out right this time...]

-- 
Oron Peled Voice/Fax: +972-4-8228492
[EMAIL PROTECTED]  http://www.actcom.co.il/~oron
ICQ UIN: 16527398

Linux is a trademark of Linus Torvalds in the USA and other countries.
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