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тАО02-17-2005 07:55 PM
тАО02-17-2005 07:55 PM
some SQUID related
Some questions ( probably having vast answers!) about squid tunning, 1. I want to know which kind of server, how much RAM and how much cache size should be appropriate for a 100 user base ? I know that for better performance one should use a system with high I/O rates.I'm going to use Hp Ml 350 G2 server, having mail server, and firewall (iptables) also.please guide me if some other things to be taken into account for better performance.
one more thing: can you tell me any utility which can be used to check network I/O on a specific port of TCP? I use MRTS to know day-wise overall I/O (in MB)through my external interface, but I want to know how much traffic has been passed on a specific port.
thanks & regards
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тАО02-19-2005 04:19 AM
тАО02-19-2005 04:19 AM
Re: some SQUID related
More explicit, You need high transactions / second, not pure I/O, so disks with very low seek times would be beneficial.
As long as they are kept on different disks mail and proxy load won't influence each other too much.
For the port-traffic accountig You'll need some software like (bsd-wise) altq or dummynet, which in the end are traffic shapers.
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тАО02-19-2005 11:58 PM
тАО02-19-2005 11:58 PM
Re: some SQUID related
http://www.ethereal.com/
This is already installed on most distribution, ethereal is gui based but there is also a console character based interface called tethereal "These tools will put you ethernet card into promiscuous mode" other usefull tool is iptrafic ( also on most distributions of Linux ) have a look at the man page, with a littel tayloring this is maybe usefull for what you have in mind.
keep us informed.
Jean-Pierre Huc
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тАО02-20-2005 04:56 PM
тАО02-20-2005 04:56 PM
Re: some SQUID related
Dear Huc, in ethreal, I have to permanently monitor the traffic if I want to know I/O on a specific TCP port, that is resource consuming , as I believe. I need some tool which can analyse the required traffic from SNMP data provided by my external interface, like MRTG and MRTS do( but they don't give traffic analysis on a specific port).
thanks & regards
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тАО02-20-2005 08:28 PM
тАО02-20-2005 08:28 PM
Re: some SQUID related
http://tcng.sourceforge.net/ !!!!
You'll have to set up shaping rules for the ports You're interested in, this works on the fly, after that You call pull stats out of it.
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тАО02-20-2005 08:29 PM
тАО02-20-2005 08:29 PM
Re: some SQUID related
http://monkey.org/~marius/pages/?page=trickle
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тАО02-20-2005 09:27 PM
тАО02-20-2005 09:27 PM
Re: some SQUID related
Thanks & ragards
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тАО02-20-2005 10:06 PM
тАО02-20-2005 10:06 PM
Re: some SQUID related
I should have read your question more carefully, to amend have a look at the following link and see if you can not find what you are looking for
http://www.linuxlinks.com/Software/Monitoring/Network/
I have little time now or I would have done more search on finding just the right light tool to get statistic from just a port....
Jean-Pierre
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тАО02-20-2005 10:20 PM
тАО02-20-2005 10:20 PM
Re: some SQUID related
This does not imply actually bandwidth limiting the traffic, it's just about putting it through different queues which then can be accounted.
Usually that's the way it's done.
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тАО02-21-2005 04:38 PM
тАО02-21-2005 04:38 PM
Re: some SQUID related
Huc, nice to see so many tools for monitoring, but I'll be highly oblized if you can tell me which one will suite my requirement.
Thnks & regards