Date: Fri, 14 Feb 2003 19:07:20 -0500 From: Bill Moran <wmoran@potentialtech.com> To: "J. Scott Edwards" <sedwards@xmission.com> Cc: questions@freebsd.org Subject: Re: Is there a way to slow down file transfers? Message-ID: <3E4D84B8.1000102@potentialtech.com> References: <AAE4ACF2-4056-11D7-95D6-0005025E566F@antsclimbtree.com> <Pine.GSO.4.53.0302141559060.18187@xmission.xmission.com>
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J. Scott Edwards wrote: > I have a remote machine running 4.7 which is streaming audio using > icecast. I was hoping to back up the machine by transferring the files to > my local machine and doing the backup here. However when I try to copy > any (non-tiny) files, using scp for example, it floods the network > connection and messes up the audio stream. Is there any way I can > transfer files from it at a much slower rate, something like 1/8 normal? You could use IPFW's traffic shaper stuff (assuming you have IPFW and dummynet in your kernel ... although I think you might be able to load both of these as a kld nowadays) Something like: ipfw add pipe 1 tcp from any to any 22 ipfw add pipe 1 tcp from any 22 to any ipfw pipe 1 config bw 300Kbit/s Would limit total ssh traffice to 300Kbit/second. Read 'man ipfw' for extensive explanation of ipfw's and dummynet's capabilities. And don't be afraid to ask specific questions, getting the hang of ipfw rules takes a bit of work. -- Bill Moran Potential Technologies http://www.potentialtech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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