network/packet sniffer

Doh_boy

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My favourite has always been ethereal but I wondered if there was another option?
 

Covenant

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RedVenom said:
Don't you have to pay for Sniffer though? Never used it - Ethereal is more than adequate for the job, very versatile and open source.

Can't get better, if you ask me...
 

RedVenom

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Breni said:
Don't you have to pay for Sniffer though? Never used it - Ethereal is more than adequate for the job, very versatile and open source.
Its another option.
 

TdC

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snoop / tcp dump

I aer teh old skool
 

phlash

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analyzer (from Politechnico de Torino), free, winpcap based and works OK. Not tried ethereal (yet).

BTW I use mine to supplement the normally crap documentation about which ports I should open to make applications work through the firewall..

Phil.
 

Doh_boy

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smurkin said:
is there a legit application for this ? just curious.
Well considering I'm using it to capture the packets my nic has recieved I figure it's easily all legal. The real reason I'm using it is because I'm working as an sys admin and for some reason the printers are being really slow.
 

Covenant

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smurkin said:
is there a legit application for this ? just curious.
Yup, I use it to view the traffic on people's networks when I'm installing new firewalls and routers. Helps to be able to see what sort of traffic is being passed through the equipment and what's being dropped.
 

sibanac

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smurkin said:
is there a legit application for this ? just curious.
I used them back when i was still developing to debug comunication protocols
 

RandomBastard

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Anything like this can be legal as long as you have the consent of the owner of the network/pc its being used on. So these tools can be used by sysadmins for various stuff
 

Covenant

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RandomBastard said:
Anything like this can be legal as long as you have the consent of the owner of the network/pc its being used on. So these tools can be used by sysadmins for various stuff
Of course, for contractors/retained staff/consultants, written permission or not at all. God knows, I don't want to be bent over and rammed by a load of high-priced lawyers.
 

MrBlack

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Ethereal always does it for me.

tcpdump -qtln when I'm doing basic stuff, too.

tethereal (console-based one) also useful.

netcat is fripping ace for watching stuff like HTTP headers coming in and out.
 

smurkin

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Doh_boy said:
Well considering I'm using it to capture the packets my nic has recieved I figure it's easily all legal. The real reason I'm using it is because I'm working as an sys admin and for some reason the printers are being really slow.
Anyways, no doubt any savvy admin would be able to detect a packet sniffer on his network a mile off :D
 

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