Re: Quick DNS perfromance measurement trick

2008-07-11 Thread Brian Chabot
Michael ODonnell wrote: aaa.bbb.ccc.ddd is POOR: 26 queries in 3.1 seconds from 1 ports with std dev 0.00 That aaa.bbb.ccc.ddd address seems to be the (possibly NAT'd) IP addr that the target site sees mentioned in the inbound packets; I have no idea about the rest of it... It looks

Boston Linux Meeting Wednesday, July 16, 2008 Don Becker CTO Penguin Computing

2008-07-11 Thread Jerry Feldman
When: June 18, 2008 7:00PM (6:30 for QA) Topic: To be announced Moderator: Don Becker, CTO of Penguin Computing Location: MIT Building E51 Room 315 Don Becker is currently CTO of Penguin Computing, and many of us know Don for his work both in Linux drivers as well as in Beowulf clusters. Please

RE: Example of ARM based linux board using initramfs and serial console

2008-07-11 Thread Alexander Wolfson
This is what I am doing as well. Usually there is a statically linked program in the /bin called busybox which provides big chunk of expected command line functionality. All the programms - bash, ash, ls, ping, ... are slinks to busybox (init as well) and busybox checks ARGV[0] for the name

On the evils of Comcast

2008-07-11 Thread Coleman Kane
I saw this in the news today, FCC ruled *against* COMCAST. Since this is like the secondary topic of the mailing list, here's the link: * http://biz.yahoo.com/ap/080711/internet_regulation.html?.v=5 -- Coleman Kane signature.asc Description: This is a digitally signed message part

Re: Quick DNS perfromance measurement trick

2008-07-11 Thread Chip Marshall
On July 10, 2008, Jeff Kinz sent me the following: It appears that good resolvers have lots of ports. Anyone who wants to take a whack at explaining what this means is very welcome! http://www.kb.cert.org/vuls/id/800113 Basically, if you have a single port or small range of ports that you

Re: How to troubleshoot wide area network performance problem?

2008-07-11 Thread Mark Greene
On Thu, Jul 10, 2008 at 7:36 PM, Alex Hewitt [EMAIL PROTECTED] wrote: I have clients with an interesting network problem. One location in Bedford New Hampshire using a fractionated T1 has routinely been transmitting studies to an office in Nashua New Hampshire. There have been no problems

RE: Example of ARM based linux board using initramfs and serial console

2008-07-11 Thread John Abreau
Just as a simple sanity check, I'd test it without trying to overcomplicate things. Forget the symlinks to busybox; just rename the binary to /bin/sh, or whatever name busybox uses to decide to be a shell; then modify the test kernel to run /bin/sh instead of /sbin/init. That will at least prove

Re: How to troubleshoot wide area network performance problem?

2008-07-11 Thread Hewitt_Tech
Mark Greene wrote: On Thu, Jul 10, 2008 at 7:36 PM, Alex Hewitt [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: I have clients with an interesting network problem. One location in Bedford New Hampshire using a fractionated T1 has routinely been transmitting studies to an

Re: How to troubleshoot wide area network performance problem?

2008-07-11 Thread Alex Hewitt
On Fri, 2008-07-11 at 11:30 -0400, Hewitt_Tech wrote: Mark Greene wrote: On Thu, Jul 10, 2008 at 7:36 PM, Alex Hewitt [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: I have clients with an interesting network problem. One location in Bedford New Hampshire using a

Re: Example of ARM based linux board using initramfs and serial console

2008-07-11 Thread Thomas Charron
On 7/11/08, Alexander Wolfson [EMAIL PROTECTED] wrote: This is what I am doing as well. Usually there is a statically linked program in the /bin called busybox which provides big chunk of expected command line functionality. All the programms - bash, ash, ls, ping, ... are slinks to busybox

Re: Example of ARM based linux board using initramfs and serial console

2008-07-11 Thread Ben Scott
On Fri, Jul 11, 2008 at 11:53 AM, Thomas Charron [EMAIL PROTECTED] wrote: There IS something that I can't recall the exact specifics of, but it's along the lines of a 'magic identifier' in the filesystem that says it can be a root FS by the kernel. We're still talking Linux, right? To

Re: Example of ARM based linux board using initramfs and serial console

2008-07-11 Thread Thomas Charron
On 7/11/08, Ben Scott [EMAIL PROTECTED] wrote: On Fri, Jul 11, 2008 at 11:53 AM, Thomas Charron [EMAIL PROTECTED] wrote: There IS something that I can't recall the exact specifics of, but it's along the lines of a 'magic identifier' in the filesystem that says it can be a root FS by the

Re: Example of ARM based linux board using initramfs and serial console

2008-07-11 Thread Michael Nolin
--- On Fri, 7/11/08, Thomas Charron [EMAIL PROTECTED] wrote: From: Thomas Charron [EMAIL PROTECTED] Subject: Re: Example of ARM based linux board using initramfs and serial console says it can be a root FS by the kernel. We're still talking Linux, right? (The kernel will panic if

Example of Linux initramfs

2008-07-11 Thread Thomas Charron
On Fri, Jul 11, 2008 at 1:52 PM, Michael Nolin [EMAIL PROTECTED] wrote: --- On Fri, 7/11/08, Thomas Charron [EMAIL PROTECTED] wrote: I was talking specifically about an initramfs, which specifically uses cpio. initramfs.c checks for a magic flag in the I would recommend Understanding the

Boston Linux Meeting Wednesday, July 16, 2008 with abstract: Beowulf clusters

2008-07-11 Thread Jerry Feldman
When: July 16, 2008 7:00PM (6:30 for QA) Topic: Beowulf clusters Moderator: Don Becker, CTO of Penguin Computing Location: MIT Building E51 Room 315 Beowulf clusters are scalable performance clusters based on commodity computers connected with a private system network. They were named after