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Re: Suggestions for interview questions
by lerninlinux＠comcast.net 19 Nov '05

19 Nov '05

I could even add the word Window's (with multiple meanings, gasp) > "Use the words hole, probe, trojan, and penetration in a sentence" > > -- > David L Nicol > I like that guy -- he once gave me a fish > _______________________________________________ > Kclug mailing list > Kclug(a)kclug.org > http://kclug.org/mailman/listinfo/kclug

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RE: SBC to unbundle local service from dsl
by Garrett Goebel 19 Nov '05

19 Nov '05

Luke-Jr wrote: > > If you can dial 911, why can't you say where you are? :\ Not everyone who dials 911 is at liberty to make noise. If you dial 911 and hang up. You'll note the nice police offers that drive by. > Get a UPS... not everyone can afford one, or replacing the battery every 2 years > And I'm sure the POTS batteries will never die when the power > goes out either... Not when it's running off a generator. Each state's Public Utilities Commission requires the local telco's to provide phone service during power outages. > > That ice storm a few years back knocked out the power for two > > days, knocking out cable service too (one battery-powered TV). > > Phone lines worked fine for both days, allowing me to call the > > electric and cable companies for information. > > Ouch... two days is much too long for power to be out :( What did > people with electric heating do? Two days may be too long for many of the elderly and infirm. Our power was out for a week. Even people with gas heating often find that their thermostats are electric... We moved in with friends who had power for the week. -- Garrett Goebel IS Development Specialist ScriptPro Direct: 913.403.5261 5828 Reeds Road Main: 913.384.1008 Mission, KS 66202 Fax: 913.384.2180 www.scriptpro.com garrett at scriptpro dot com _______________________________________________ Kclug mailing list Kclug(a)kclug.org http://kclug.org/mailman/listinfo/kclug

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RE: Somewhat OT: Top 500 list
by Kelsay, Brian - Kansas City, MO 18 Nov '05

18 Nov '05

More food for thought: http://servers.linux.com/servers/05/11/08/1940210.shtml?tid=44 http://www.cs.wisc.edu/condor/ http://rocks.npaci.edu/wordpress/

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RE: Suggestions for interview questions
by Daniel Siemens 18 Nov '05

18 Nov '05

Q. What is the decimal notation of subnet mask of 255.255.255.0 A. /24 Q. What type of DNS record is associated with email servers a. MX /Mail Exchanger and Reverse DNS (99% will miss Reverse DNS unless they have ran their own mail server) Q. If I build a Ipsec vpn from Site 1 to Site 2 to Site 3, Can I ping a host on site 3 from site 1. A. No. Ipsec creates rules to join networks. Generally you can't route traffic between tunnels. Q. Most managed switchs us a technique called spanning tree. A lot of embedded devices will miss DHCP when because their boot up time is so fast that the port is not alive before the switch determines that you do not have a loop back condition. What is the correct way to solve this. A. In some switches they have a feature called port fast, turn this on ports that have embedded devices. In some middle ground switches you have to disable spanning tree on that port or even the complete switch. That's a few. They might be a bit beyond any junior person but if you want someone that really knows their stuff I would get a bit harder than these. ________________________________ From: kclug-bounces(a)kclug.org [mailto:kclug-bounces@kclug.org] On Behalf Of Garrett Goebel Sent: Wednesday, November 16, 2005 8:15 AM To: kclug(a)kclug.org Subject: Suggestions for interview questions What type of networking questions would you suggest to weed out interview candidates during a 15 minute phone conversation? The emphasis would not be on any particular platform, but rather to discover if the candidate had a general understanding of tcpip networking, hardware, infrastructure, security, nat, firewalls, vpns, ipsec, ssl, dns, hubs, switches, routers, etc. Example: Q: Can you name a protocol responsible for dynamic IP address assignment? A: BOOTP or DHCP -- Garrett Goebel IS Development Specialist ScriptPro Direct: 913.403.5261 5828 Reeds Road Main: 913.384.1008 Mission, KS 66202 Fax: 913.384.2180 www.scriptpro.com garrett at scriptpro dot com

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RE: Somewhat OT: Top 500 list
by Kelsay, Brian - Kansas City, MO 18 Nov '05

18 Nov '05

It is quite possible that we could have a LUG cluster of either of those boards. If members donated money to purchase or several people each purchased a board and donated, with someone donating switches, wire, metal, HDD, CF cards, UPS, like in the article I sent, we could build something tasty. -----Original Message----- From: On Behalf Of Kendrick >>Kelsay, Brian - Kansas City, MO wrote: >>Like this? http://www.mini-itx.com/projects/cluster/ >> >> >> > >yes but using the dual >http://www.idotpc.com/TheStore/Desktop/1005Spec.asp?Product.id=1005&Cat e.id=5&Product.status=green >or a via c7 which is suposed to be near 2ghz and getting more powerful >http://www.hardwaresecrets.com/article/195/5 >

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CryoPID - Freeze process on one machine thaw on another...
by Garrett Goebel 18 Nov '05

18 Nov '05

I ran across this interesting nugget today: http://cryopid.berlios.de <http://cryopid.berlios.de> > CryoPID allows you to capture the state of a running process in Linux and save it to > a file This file can then be used to resume the process later on, either after a reboot > or even on a different machine. ... > Yes checkpointing software such as this is nothing new, but I was unable to find a > tool that worked on Linux that did not require at least one of the following: > > o root privileges > o modifications to the kernel > o recompiling/relinking your software > o using an LD_PRELOAD when you start your program -- Garrett Goebel IS Development Specialist ScriptPro Direct: 913.403.5261 5828 Reeds Road Main: 913.384.1008 Mission, KS 66202 Fax: 913.384.2180 www.scriptpro.com <www.scriptpro.com> garrett at scriptpro dot com

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RE: SBC to unbundle local service from dsl
by Kelsay, Brian - Kansas City, MO 17 Nov '05

17 Nov '05

The answer to your domain search is mo.us Name not found -----Original Message----- From: On Behalf Of David Nicol if you're a public resource like a lug. That and managing yout local ...us domain. Who does that, by the way? manage kc.mo.us?

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RE: SBC to unbundle local service from dsl
by Garrett Goebel 17 Nov '05

17 Nov '05

Jim Herrmann wrote: J Leo Mauler wrote: J L Garrett Goebel <garrett(a)scriptpro.com> wrote: J L G Whenever it becomes affordable, I will switch to VOIP for local J L G and long distance voice service through someone like SunRocket J L G http://www.sunrocket.com for $200/year. J L J L About the only reasons I don't switch to any kind of VoIP are 911 J L service (the 911 dispatcher knows where you are with regular phone J L service but not with VoIP), and the point that phone service doesn't J L necessarily go out when the power goes out, but VoIP service either J L goes out instantly during a power failure, or runs out in six hours J L when the built-in UPS runs out of battery power. J J There is supposed to be e911 now. They know where you are now because J you tell them where you are, and the calls are routed to the 911 J operator in your area. Eventually, I think it's supposed to be able J to figure out where you are. That's kind of disturbing, yet J comforting. Hmm. SunRocket has E911. Not all the other VOIP providers did last time I checked... I have a cell phone which covers your power outage scenario. And the downed phone line scenario you didn't mention. Not that it matters much to me, our phone and power are buried. Makes me rememer an article I read a while back about a VOIP to GSM gateway. Ah thank you google, here it is: http://www.theinquirer.net/?article=26715 And that makes me remember how back around '93 you could send faxes internationally or long distance if you knew the email address that'd been setup to forward it to a fax machine in the same local calling area as the destination fax number. -- Garrett Goebel IS Development Specialist ScriptPro Direct: 913.403.5261 5828 Reeds Road Main: 913.384.1008 Mission, KS 66202 Fax: 913.384.2180 www.scriptpro.com garrett at scriptpro dot com

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RE: Somewhat OT: Top 500 list
by Kelsay, Brian - Kansas City, MO 17 Nov '05

17 Nov '05

If you get the clusterKnoppix LiveCD, there is at least one prime calculating client on the disk IIRC. That is supposed to be for testing the cluster. You boot one unit to the LiveCD or to it loaded on a HDD to be the master node, and the other units are set to bootp or PXE and they connect up to the master node on boot. Obviously, there are many ways to make this work and clusterKnoppix is not the only answer. Check out www.grid.org . Apparently some of the distributed.net team and a few SETI@home guys got jobs there at United Devices www.uniteddevices.com, who also does grid.org as a non-profit project. -----Original Message----- From: kclug-bounces(a)kclug.org [mailto:kclug-bounces@kclug.org] On Behalf Of James Sissel Sent: Thursday, November 17, 2005 12:50 PM To: Kclug(a)kclug.org Subject: RE: Somewhat OT: Top 500 list I love those projects and I'm involved in 4 of them. SETI - looking for ET, Einstein - looking for gravity waves, folding proteins, and climate forecasting. I've got anywhere from 1-3 PCs dedicated to them at all times. But that's distributed computing and not a supercomputer. Do you think KU or UMKC might have a suitable project for a small supercomputer? Or how about some of our local medical research companies? Maybe we could offer it to Channel 9 so they can get our local weather forecasts right (tongue in cheek). "Kelsay, Brian - Kansas City, MO" <brian.kelsay(a)kcc.usda.gov> wrote: I know that finding primes and cracking encryption is not considered sexy, but that is one basic thing you can use to test your computing cluster. After that you could move to the SETI client, folding@home, one of the other protein folding clients. Those folding clients may actually help people down the road. Start here: http://www.ibiblio.org/gferg/ldp/Distributed-Computing-HOWTO/ for a list of projects.

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RE: Somewhat OT: Top 500 list
by Kelsay, Brian - Kansas City, MO 17 Nov '05

17 Nov '05

I know that finding primes and cracking encryption is not considered sexy, but that is one basic thing you can use to test your computing cluster. After that you could move to the SETI client, folding@home, one of the other protein folding clients. Those folding clients may actually help people down the road. Start here: http://www.ibiblio.org/gferg/ldp/Distributed-Computing-HOWTO/ for a list of projects. ******************************************* If the automobile had followed the same development cycle as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year, killing everyone inside. - Robert X. Cringely -----Original Message----- From: On Behalf Of James Sissel Sent: Thursday, November 17, 2005 10:14 AM This LUG supercomputer sounds interesting. But what great social use would we dedicate it to solve (other than figuring out future Lotto winning numbers). "Kelsay, Brian - Kansas City, MO" <brian.kelsay(a)kcc.usda.gov> wrote: It is quite possible that we could have a LUG cluster of either of those boards. If members donated money to purchase or several people each purchased a board and donated, with someone donating switches, wire, metal, HDD, CF cards, UPS, like in the article I sent, we could build something tasty.

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