Roundtable January 2010

roundtable@muug.ca

12 participants
6 discussions

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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Shaw dropping on greylist?
by Trevor Cordes 29 Jan '10

29 Jan '10

I have an apparent greylisting issue with Shaw. I wonder if anyone else has noticed this. Shaw's mail server appears to only try either a few times or for a limited amount of time and then give up. I get lots of logs like the following (names have been changed to protect the guilty). After that, no further hits from that from address. I had my greylisting time set to 29mins, but have now changed it to 15mins to try to get within the Shaw window. Anyone else with a >16 min greylist delay might want to check their logs for similar behaviour, and/or take reports of missing emails more seriously. Please report back if you see similar behaviour. Thanks! Jan 20 17:51:35 pog milter-greylist: o0KNpZhm012547: addr idcmail-mo2no.shaw.ca[64.59.134.9] from <bobo(a)clown.com> to <me(a)mine.com> delayed for 00:29:00 Jan 20 17:51:35 pog sendmail[12547]: o0KNpZhm012547: from=<bobo(a)clown.com>, size=5720, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=idcmail-mo2no.shaw.ca [64.59.134.9] Jan 20 17:52:37 pog milter-greylist: o0KNqbE4012577: addr idcmail-mo2no.shaw.ca[64.59.134.9] from <bobo(a)clown.com> to <me(a)mine.com> delayed for 00:27:58 Jan 20 17:52:37 pog sendmail[12577]: o0KNqbE4012577: from=<bobo(a)clown.com>, size=5720, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=idcmail-mo2no.shaw.ca [64.59.134.9] Jan 20 17:54:41 pog milter-greylist: o0KNsfrZ012640: addr idcmail-mo2no.shaw.ca[64.59.134.9] from <bobo(a)clown.com> to <me(a)mine.com> delayed for 00:25:54 Jan 20 17:54:41 pog sendmail[12640]: o0KNsfrZ012640: from=<bobo(a)clown.com>, size=5720, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=idcmail-mo2no.shaw.ca [64.59.134.9] Jan 20 18:00:54 pog milter-greylist: o0L00sXO012857: addr idcmail-mo2no.shaw.ca[64.59.134.9] from <bobo(a)clown.com> to <me(a)mine.com> delayed for 00:19:41 Jan 20 18:00:54 pog sendmail[12857]: o0L00sXO012857: from=<bobo(a)clown.com>, size=5720, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=idcmail-mo2no.shaw.ca [64.59.134.9] Jan 20 18:06:36 pog milter-greylist: o0L06ahf013092: addr idcmail-mo2no.shaw.ca[64.59.134.9] from <bobo(a)clown.com> to <me(a)mine.com> delayed for 00:13:59 Jan 20 18:06:36 pog sendmail[13092]: o0L06ahf013092: from=<bobo(a)clown.com>, size=5720, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=idcmail-mo2no.shaw.ca [64.59.134.9]

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I just found a use for paste(1)!
by Adam Thompson 18 Jan '10

18 Jan '10

OK, I've now used paste(1) about /three/ times in my life... To re-flatten the output of egrep into a single line, as in: egrep -e '^Date:|^From:|^Subject:' $mailfile | paste -d'|' - - - Specifically, I'm working on Maildir-style files so I don't have to worry about "losing synchronization" if one of the headers is missing for some reason, and the names of the files are contained in the file "0006966d83811cd33a120e436a67d312". so: for i in $(cat 0006966d83811cd33a120e436a67d312 ); do (echo $i|cut -d'/' -f2 ; egrep '^Date:|^From:|^Subject:' ../$i ) | paste -d'|' - - - - ; done produces output like: .DNS|Date: Fri, 5 Jun 2009 21:16:22 -0400 (EDT)|From: "easyDNS Support" <support(a)easydns.com>|Subject: [easyDNS] Automated 30 day renewal reminder 2009-07-05 .DNS|Date: Fri, 5 Jun 2009 21:16:22 -0400 (EDT)|From: "easyDNS Support" <support(a)easydns.com>|Subject: [easyDNS] Automated 30 day renewal reminder 2009-07-05 which I can then feed into the next stage of parsing. -Adam

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Fwd: HotPar '10 Submissions Deadline Approaching
by Gilbert E. Detillieux 13 Jan '10

13 Jan '10

FYI... -------- Original Message -------- Subject: HotPar '10 Submissions Deadline Approaching Date: Tue, 12 Jan 2010 14:19:48 -0800 From: Lionel Garth Jones <lgj(a)usenix.org> We're writing to remind you that the submissions deadline for the 2nd USENIX Workshop on Hot Topics in Parallelism (HotPar '10) is quickly approaching. Please submit you work by Sunday, January 24, 2010. http://www.usenix.org/hotpar10/cfpb HotPar '10 will bring together researchers and practitioners doing innovative work in the area of parallel computing. HotPar recognizes the broad impact of multicore computing and seeks relevant contributions in all fields, including application design, languages and compilers, systems, and architecture. We request submissions of 5-page position papers that propose new directions for research of products in these areas, advocate non-traditional approaches to the problems engendered by parallelism, or potentially generate controversy and discussion. More information and submission guidelines are available at http://www.usenix.org/hotpar10/cfpb We look forward to receiving your submissions! Sincerely, Geoff Lowney, Intel David Patterson, University of California, Berkeley HotPar '10 Program Co-Chairs hotpar10chairs(a)usenix.org ------------------------------------------------------------------------ Call for Papers: 2nd USENIX Workshop on Hot Topics in Parallelism (HotPar '10) June 14-15, 2010 Berkeley, CA, USA http://www.usenix.org/hotpar10/cfpb Sponsored by USENIX in cooperation with ACM SIGMETRICS, ACM SIGSOFT, ACM SIGOPS, ACM SIGARCH, and ACM SIGPLAN Position paper submissions due: January 24, 2010 ------------------------------------------------------------------------

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Fwd: Jobs
by Montana Quiring 08 Jan '10

08 Jan '10

I have a friend who's company is looking to hire a couple people. Please see attached PDF's. If you apply for one of the jobs, please mention Jeff Howie's name as he gets a bonus if you get hired. ;) -Montana Blog and Aggregation Site: http://montanaquiring.info iPhone/Touch Apps I have bought: http://appshopper.com/feed/user/antikx/myapps ---------- Forwarded message ---------- From: GROG! (Jeff Howie) <uncle.grog(a)gmail.com> Date: Fri, Jan 8, 2010 at 11:17 AM Subject: Jobs To: Montana Quiring <montanaq(a)gmail.com> Hey there. How's it going? Long time no see, talk or otherwise. :) My office just lost a couple of tech people in the last bit & while I don't think you'd be interested (or maybe you are?), maybe you know someone who is? Pass'em on if you do & let me know. I get a small bonus if someone is hired that I brought in, so make sure my name is dropped :). Take care. -- GROG!

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MUUG Meeting, January 12, 7:30pm -- Zimbra
by gedetil＠cs.umanitoba.ca 06 Jan '10

06 Jan '10

The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting on Tuesday, January 12. The meeting topic for this month is as follows: Zimbra Montana Quiring will cover Zimbra, the open-source collaboration suite, which includes e-mail, calendars and more. In this presentation, Montana will give an overview what Zimbra is, talk about what's new in Zimbra 6 and explain the installation process a bit. Before the break, as this month's RTFM topic, Adam Thompson will cover the cut(1) and paste(1) commands. The group holds its general meetings at 7:30pm on the second Tuesday of every month from September to June. (There are no meetings in July and August.) Meetings are open to the general public; you don't have to be a MUUG member to attend. ********************************************************************** Please note our meeting location: The IBM offices, at 400 Ellice Ave. (between Edmonton and Kennedy). When you arrive, you will have to sign in at the reception desk, and then wait for someone to take you (in groups) to the meeting room. Please try to arrive by about 7:15pm, so the meeting can start promptly at 7:30pm. Don't be late, or you may not get in. (But don't come too early either, since security may not be there to let you in before 7:15 or so.) Non-members may be required to show photo ID at the security desk. Limited parking is available for free on the street, either on Ellice Ave. or on some of the intersecting streets. Indoor parking is also available nearby, at Portage Place, for $5.00 for the evening. Bicycle parking is available in a bike rack under video surveillance located behind the building on Webb Place. ********************************************************************** For more information about MUUG, and its monthly meetings, check out their Web server: http://www.muug.mb.ca/ Help us promote this month's meeting, by putting this poster up on your workplace bulletin board or other suitable public message board: http://www.muug.mb.ca/meetings/MUUGmeeting.pdf -- 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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Roundtable January 2010