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Date:      Wed, 17 Oct 2001 13:26:38 -0500
From:      Joshua Holland <josh@bitstream.net>
To:        questions@FreeBSD.ORG, Weldon S Godfrey 3 <weldon@excelsus.com>
Subject:   Re: ftp hogging bandwidth
Message-ID:  <p0500190ab7f37d8bd0f9@[10.0.1.100]>
In-Reply-To: <20011017135212.L59186-100000@joule.excelsus.com>
References:  <20011017135212.L59186-100000@joule.excelsus.com>

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I suppose it is the outside connection that is bogging down.  I 
wasn't actually at the console at the time.

>You mean the machine is bogging down or your outside connection is getting
>bogged down?
>
>I think the ftp session is taking your entire fractional T.  I don't think
>it would be slowing down your machine too much.
>
>IPFW I *think* has rate shaping ability.  You might be able to add rules
>to set ftp to a certain bandwidth.
>
>I am now going beyond my experience, I haven't tried to rateshape on a
>freebsd box yet.
>
>
>On Wed, 17 Oct 2001, Joshua Holland wrote:
>
>>  I think they were ftp-ing through our box to an off site location.
>>
>>  >I assuming that someone is ftping to a ftp server that is also your
>>  >nat/firewall box?
>>  >
>>  >One really cheezy way would be this:
>>  >
>>  >Have 2 nics on your server
>>  >
>>  >1 nic has the IP address for ftp.  In DNS you can make that IP be whatever
>>  >you want (ftp.localhost, ftp.biststeam.net, etc)
>>  >
>>  >the other nic is doing the rest of your internal lan stuff
>>  >
>>  >and since you are doing nat, you might have a 3rd nic for WAN.
>>  >
>>  >
>>  >if you don't have a 100Mb shared hub, or want to lower the ftp bandwidth
>>  >further for some reason, you could force the dedicated ftp nic to 10Mb
>>  >
>>  >
>>  >
>>  >
>>  >On Wed, 17 Oct 2001, Joshua Holland wrote:
>>  >
>>  >>  Hello,
>>  >>
>>  >>  I help administer a FreeBSD machine that runs nat, dhcpd, mail and
>>  >>  web servers for an organization with about 75 desktop clients.  They
>>  >>  have a 256k fractional T1.  We have noticed the machine bogging down
>>  >>  sometimes (people complaining of extremely slow web page loading, and
>>  >>  when I ssh in, very slow response).  Top shows less than 1% of CPU
>>  >>  being used.  This last time, it seems someone was ftp-ing a 100MB
>>  >>  file, and when they terminated the transfer, everything was fast
>>  >>  again.  Is there anyway to prevent one client or process from hogging
>>  >>  all that bandwidth?
>>  >>
>>  >>  Joshua Holland.
>>  >>
>>  >>
>>  >>  To Unsubscribe: send mail to majordomo@FreeBSD.org
>>  >  > with "unsubscribe freebsd-questions" in the body of the message
>>  >  >
>>
>>


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