March 2010 - Roundtable

trying to set up ssh at home
by Kat 03 May '10

03 May '10

Hi folks! My new understanding of networking is coming along, but still a little shaky. I have been trying to set up ssh to work on my home machine because I want to practice Linux stuff and access my PC if I happen to be away from home on the weekends. I've installed OpenSSH with success, and from my local machine I can "ssh localhost" with success (127.0.0.1 works too, of course) The problem is I am trying ssh (my ip) and I get "Connection refused". This happens both from my parents' machine (in another town - Go Mom for downloading and running putty), and from my own (that ssh is running on). I suspect the problem has to do with my router, either regarding my rather prudent settings (LAN connection must be authenticated, *and* have a whitelisted MAC address), or more likely, I am missing something in setup to allow incoming connections that get forwarded to my specific machine. This is where my understanding falls apart at the moment... help? I've got a linksys/cisco wrt120n local IP 192.168.1.100 local router IP 192.168.1.1 internet IP in the 24.something range :) Let me know if more info is required. Thanks! ------------------------------------------------------------ Katherine Scrupa Network Technology CCNA student, RRC

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Decision in SCO-Novell case ripples beyond Utah - Salt Lake Tribune
by Gilbert E. Detillieux 31 Mar '10

31 Mar '10

I was made aware of this news item only after finishing up the April MUUG newsletter (actually about an hour after printing it off for mailing)... http://www.sltrib.com/news/ci_14786202 -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.mb.ca> Manitoba UNIX User Group Web: http://www.muug.mb.ca/ PO Box 130 St-Boniface Phone: (204)474-8161 Winnipeg MB CANADA R2H 3B4 Fax: (204)474-7609

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software-based firewall appliance - opinions?
by Adam Thompson 30 Mar '10

30 Mar '10

I'm looking for an "appliance-style" software firewall distribution. Appliance as in I don't want to just do a general OS install, because non-technical users will have to do some administration of it at a later date. Short list so far: BSDRP m0n0wall pfSense SmoothWallVyatta Core One key problem is that I expect to need 802.1Q VLAN tagging support, which is why I'm not installing a Linksys WRT54G as the "firewall". I also want at least a rudimentary GUI, as it won't always be technical people who need to make changes to the firewall configuration. I'd love to hear from you if you've used any of the above. -Adam Thompson <athompso(a)athompso.net> (204) 291-7950

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short-term email-only hosting?
by Adam Thompson 30 Mar '10

30 Mar '10

I'm looking for [probably] short-term hosting of email *only*. Already have DNS & web hosting, just want email that doesn't lock me in for a year at a time. Would prefer a Canadian firm, will accept European, but I do not want this email stored in the USA. Any recommendations? -Adam Thompson <athompso(a)athompso.net> (204) 291-7950

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MP3 player update and request for info
by Mike Pfaiffer 30 Mar '10

30 Mar '10

I still haven't been able to get the video to work since the meeting. I tried all the recommendations. I just don't seem to find anything to convert to the .AMV format. Like I said at the meeting the single M$ application they include doesn't work either. I read somewhere I could patch ffmpeg but I'd rather not risk messing it up. It would be nice if I could install RockBox on it but unfortunately... The other update is I tried the e-book reader. The manual says all it does is .TXT files. This is reasonable. It's an open format and you can't get much simpler than a bunch of ASCII/UTF-8 formatted bytes strung together. The screen is a little small but that's OK too if I take off my glasses and read it in a lit room. The request relates to the e-book reader. Someone gave me a whole bunch of books they were finished with. Unfortunately the majority are in .PDF and .LIT format. Is there a conversion utility in Linux or OS X to convert them to a .TXT file? I suppose I could read them on the computer but that would defeat the purpose of the e-book reader. Considering I bought the device just for the voice recorder, I think it worked out reasonably well finding all these additional capabilities. Now if they'd only work properly... ;-) Later Mike

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Virtual server security risks - another article
by Adam Thompson 28 Mar '10

28 Mar '10

Since this has been discussed before: http://www.networkcomputing.com/virtualization/virtual-servers-introduce-re… -Adam Thompson <athompso(a)athompso.net> (204) 291-7950

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Re: [RndTbl] NAS box
by Adam Thompson 23 Mar '10

23 Mar '10

LJ has ads from Polywell every month, I'm pretty sure they have something up your alley. (www.polywell.com/us/lx) You could also use the BeagleBoard, buy a 2-disk SATA hotswap tray, and a chassis, but you can't use a standard distro. You could always rig up to eSATA enclosures to pretty much anything that supports eSATA... Or USB, albeit at lower performance. The two-hotswap-bay requirement will likely have you either using external equipment, or an ordinary ATX mid-tower case... Regular 5.25" bays also get you reasonably cheap hotswap trays. Size-wise, almost no-one bothers making OEM product at the 2-disk level; there's tons of options in 19" units or 8-bay towers. How much are you willing to spend? -Adam

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Any R users out there?
by Sean Walberg 22 Mar '10

22 Mar '10

Anyone out there in MUUG-land use R at all (http://www.r-project.org/) or do any sort of data mining? Wouldn't mind talking to you sometime if so. Thanks, Sean -- Sean Walberg <sean(a)ertw.com> http://ertw.com/

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Re: [RndTbl] OT: Soldering help
by Jun Ma 19 Mar '10

19 Mar '10

Hi Kevin, I just saw your post, if still need, let me know. I can do it. Jun jma(a)phason.ca

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Fwd: HotCloud '10 Submission Deadline Approaching
by Gilbert E. Detillieux 18 Mar '10

18 Mar '10

FYI... -------- Original Message -------- Subject: HotCloud '10 Submission Deadline Approaching Date: Thu, 18 Mar 2010 09:16:00 -0700 From: Lionel Garth Jones <lgj(a)usenix.org> We're writing to remind you that submission deadline for the 2nd USENIX Workshop on Hot Topics in Cloud Computing (HotCloud '10) program committee is approaching. Please submit your work by Tuesday, March 23, 2010. http://www.usenix.org/hotcloud10/cfpb Cloud computing has attracted a great deal of attention both from the research community and from industry. The cloud computing paradigm has evolved over the years from a basic IT infrastructure (data centers) to platform as a service (PaaS), and then from software as a service (SaaS) to complete service enablement on a hosted infrastructure (IaaS). At the same time, virtualization has emerged as a key enabler for the cloud computing paradigm. Several challenges arise in the design, implementation, and deployment of virtualized clouds. HotCloud will provide a forum for academics as well as practitioners in the field to share their experience, leverage each other's perspectives, and identifynew/emerging "hot" trends in this area. Topics of interest include but are not limited to the following: * Platform as a service * Software as a service * Infrastructure as a service * Elasticity and availability in a cloud * Multi-tenancy * Storage cloud * Charging models and economics * Power-efficient ("green") computing for clouds * Virtual appliance management and composition * Monitoring, troubleshooting, and failure recovery * Cloud management and configuration * Programming models * Security and privacy in clouds * New applications for clouds * Mobile clouds * Cloud usage scenarios For more details on the submission process, please see the complete Call for Papers at: http://www.usenix.org/hotcloud10/cfpb We look forward to receiving your submissions! Erich Nahum, IBM T.J. Watson Research Center Dongyan Xu, Purdue University HotCloud '10 Program Co-Chairs hotcloud10chairs(a)usenix.org --------------------------------- Call for Papers 2nd USENIX Workshop on Hot Topics in Cloud Computing (HotCloud '10) June 22, 2010 Boston, MA, USA http://www.usenix.org/hotcloud10/cfpb Submissions Deadline: March 23, 2010 ---------------------------------

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