From gedetil at cs.umanitoba.ca Wed Jan 6 15:07:38 2010 From: gedetil at cs.umanitoba.ca (Gilbert E. Detillieux) Date: Wed, 6 Jan 2010 15:07:38 -0600 (CST) Subject: [RndTbl] MUUG Meeting, January 12, 7:30pm -- Zimbra Message-ID: <201001062107.o06L7cB07295@iron.cs.umanitoba.ca> 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: 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 From montanaq at gmail.com Fri Jan 8 15:32:01 2010 From: montanaq at gmail.com (Montana Quiring) Date: Fri, 8 Jan 2010 15:32:01 -0600 Subject: [RndTbl] Fwd: Jobs In-Reply-To: <7a11079f1001080917j79bb081by37f1f4a0957c10c9@mail.gmail.com> References: <7a11079f1001080917j79bb081by37f1f4a0957c10c9@mail.gmail.com> Message-ID: 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) Date: Fri, Jan 8, 2010 at 11:17 AM Subject: Jobs To: Montana Quiring 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! -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.muug.mb.ca/pipermail/roundtable/attachments/20100108/7af4f3ed/attachment-0001.html -------------- next part -------------- A non-text attachment was scrubbed... Name: Job Posting - UNIX and SAN Admin.pdf Type: application/pdf Size: 42139 bytes Desc: not available Url : http://www.muug.mb.ca/pipermail/roundtable/attachments/20100108/7af4f3ed/attachment-0002.pdf -------------- next part -------------- A non-text attachment was scrubbed... Name: Job Posting - Enterprise Security and Web Technologies.pdf Type: application/pdf Size: 43113 bytes Desc: not available Url : http://www.muug.mb.ca/pipermail/roundtable/attachments/20100108/7af4f3ed/attachment-0003.pdf From montanaq at gmail.com Fri Jan 8 15:56:38 2010 From: montanaq at gmail.com (Montana Quiring) Date: Fri, 8 Jan 2010 15:56:38 -0600 Subject: [RndTbl] Jobs In-Reply-To: References: <7a11079f1001080917j79bb081by37f1f4a0957c10c9@mail.gmail.com> Message-ID: I was informed that there is an info at list for these kind of posts and also... there doesn't appear to be any contact info in the PDF's. I'll get the contact info and post it to the info list when I get it. Or just direct email me and I'll send it to you. -Montana Blog and Aggregation Site: http://montanaquiring.info iPhone/Touch Apps I have bought: http://appshopper.com/feed/user/antikx/myapps On Fri, Jan 8, 2010 at 3:32 PM, Montana Quiring wrote: > 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) > Date: Fri, Jan 8, 2010 at 11:17 AM > Subject: Jobs > To: Montana Quiring > > > 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! > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.muug.mb.ca/pipermail/roundtable/attachments/20100108/420340b2/attachment.html From montanaq at gmail.com Fri Jan 8 15:57:21 2010 From: montanaq at gmail.com (Montana Quiring) Date: Fri, 8 Jan 2010 15:57:21 -0600 Subject: [RndTbl] Jobs In-Reply-To: References: <7a11079f1001080917j79bb081by37f1f4a0957c10c9@mail.gmail.com> Message-ID: errr. crap.. I meant jobs at list sorry. -Montana Blog and Aggregation Site: http://montanaquiring.info iPhone/Touch Apps I have bought: http://appshopper.com/feed/user/antikx/myapps On Fri, Jan 8, 2010 at 3:56 PM, Montana Quiring wrote: > I was informed that there is an info at list for these kind of posts and > also... there doesn't appear to be any contact info in the PDF's. > I'll get the contact info and post it to the info list when I get it. Or > just direct email me and I'll send it to you. > > > -Montana > Blog and Aggregation Site: > http://montanaquiring.info > iPhone/Touch Apps I have bought: > http://appshopper.com/feed/user/antikx/myapps > > > On Fri, Jan 8, 2010 at 3:32 PM, Montana Quiring wrote: > >> 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) >> Date: Fri, Jan 8, 2010 at 11:17 AM >> Subject: Jobs >> To: Montana Quiring >> >> >> 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! >> >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.muug.mb.ca/pipermail/roundtable/attachments/20100108/11db80a4/attachment.html From john at johnlange.ca Fri Jan 8 15:57:03 2010 From: john at johnlange.ca (John Lange) Date: Fri, 08 Jan 2010 15:57:03 -0600 Subject: [RndTbl] Fwd: Jobs In-Reply-To: References: <7a11079f1001080917j79bb081by37f1f4a0957c10c9@mail.gmail.com> Message-ID: <1262987823.4884.16.camel@linux-k6vx.site> Is it just me or does anyone else find it annoying when companies do job listings and don't even list a ball-park salary? It's like "for sale" ads with no price, I just ignore them. I guess if you were desperate for work you'd apply but is that the only people they want to attract? Just to be clear; I'm personally not looking for work but I'm just saying... John On Fri, 2010-01-08 at 15:32 -0600, Montana Quiring wrote: > 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) > Date: Fri, Jan 8, 2010 at 11:17 AM > Subject: Jobs > To: Montana Quiring > > > 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! > > > > _______________________________________________ > Roundtable mailing list > Roundtable at muug.mb.ca > http://www.muug.mb.ca/mailman/listinfo/roundtable -- John Lange http://www.johnlange.ca From sean at tinfoilhat.ca Fri Jan 8 16:00:13 2010 From: sean at tinfoilhat.ca (Sean Cody) Date: Fri, 8 Jan 2010 16:00:13 -0600 Subject: [RndTbl] Fwd: Jobs In-Reply-To: <1262987823.4884.16.camel@linux-k6vx.site> References: <7a11079f1001080917j79bb081by37f1f4a0957c10c9@mail.gmail.com> <1262987823.4884.16.camel@linux-k6vx.site> Message-ID: <7AB8EE1F-9952-44E6-AC6F-AE889DC388FF@tinfoilhat.ca> HERE HERE!!! On 2010-01-08, at 3:57 PM, John Lange wrote: > Is it just me or does anyone else find it annoying when companies do job > listings and don't even list a ball-park salary? > > It's like "for sale" ads with no price, I just ignore them. > > I guess if you were desperate for work you'd apply but is that the only > people they want to attract? > > Just to be clear; I'm personally not looking for work but I'm just > saying... > > John > > On Fri, 2010-01-08 at 15:32 -0600, Montana Quiring wrote: >> 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) >> Date: Fri, Jan 8, 2010 at 11:17 AM >> Subject: Jobs >> To: Montana Quiring >> >> >> 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! >> >> >> >> _______________________________________________ >> Roundtable mailing list >> Roundtable at muug.mb.ca >> http://www.muug.mb.ca/mailman/listinfo/roundtable > > > > -- > John Lange > http://www.johnlange.ca > > _______________________________________________ > Roundtable mailing list > Roundtable at muug.mb.ca > http://www.muug.mb.ca/mailman/listinfo/roundtable -- Sean From gedetil at cs.umanitoba.ca Wed Jan 13 10:18:02 2010 From: gedetil at cs.umanitoba.ca (Gilbert E. Detillieux) Date: Wed, 13 Jan 2010 10:18:02 -0600 Subject: [RndTbl] Fwd: HotPar '10 Submissions Deadline Approaching Message-ID: <4B4DF23A.8060508@cs.umanitoba.ca> FYI... -------- Original Message -------- Subject: HotPar '10 Submissions Deadline Approaching Date: Tue, 12 Jan 2010 14:19:48 -0800 From: Lionel Garth Jones 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 at 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 ------------------------------------------------------------------------ From athompso at athompso.net Sun Jan 17 18:37:09 2010 From: athompso at athompso.net (Adam Thompson) Date: Sun, 17 Jan 2010 18:37:09 -0600 Subject: [RndTbl] I just found a use for paste(1)! Message-ID: <4B53AD35.9090603@server.athompso.net> 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" |Subject: [easyDNS] Automated 30 day renewal reminder 2009-07-05 .DNS|Date: Fri, 5 Jun 2009 21:16:22 -0400 (EDT)|From: "easyDNS Support" |Subject: [easyDNS] Automated 30 day renewal reminder 2009-07-05 which I can then feed into the next stage of parsing. -Adam -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.muug.mb.ca/pipermail/roundtable/attachments/20100117/9253397a/attachment.html From uniquegeek at gmail.com Fri Jan 22 19:20:48 2010 From: uniquegeek at gmail.com (Kat) Date: Fri, 22 Jan 2010 19:20:48 -0600 Subject: [RndTbl] trying to set up ssh at home Message-ID: 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.muug.mb.ca/pipermail/roundtable/attachments/20100122/17883a1b/attachment.html From robert at cluenet.org Fri Jan 22 20:02:47 2010 From: robert at cluenet.org (Robert Keizer) Date: Fri, 22 Jan 2010 20:02:47 -0600 Subject: [RndTbl] trying to set up ssh at home In-Reply-To: References: Message-ID: <4B5A58C7.8030205@cluenet.org> Kat wrote: > 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 > ------------------------------------------------------------------------ > > _______________________________________________ > Roundtable mailing list > Roundtable at muug.mb.ca > http://www.muug.mb.ca/mailman/listinfo/roundtable > You need to login to the router web interface and enable port forwarding to 192.168.1.100, on port 22 tcp. You also might be interested in using a dynamic dns service, such as dnydns.org. All the best, Robert From high.res.mike at gmail.com Fri Jan 22 21:09:19 2010 From: high.res.mike at gmail.com (Mike Pfaiffer) Date: Fri, 22 Jan 2010 21:09:19 -0600 Subject: [RndTbl] trying to set up ssh at home In-Reply-To: References: Message-ID: <4B5A685F.1090700@gmail.com> Kat wrote: > 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 done this a few times with OS X Macs (it takes 30 seconds to set up) and ONCE with Linux. > 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". It's not getting as far as asking for a login? > 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 take it you are using the 192 address you give us below as the destination... > 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? Sean will be able to give more specific advice, but I think the problem isn't your router. I think it sounds like your computer is only partially set up to accept incoming connections. You /may/ have to set up the firewall or permissions in Linux to allow for incoming connections on that port. By using localhost you aren't getting outside your computer. By using the 192 address you are going to the router and back. It would be nice to know if you can ssh out to a working machine... This way we can determine where the problem is. I suspect you are not far from a working solution (maybe a minute and a half). I use a DLink without any special setup and can access my Macs with my Linux box. > 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. I think you almost have it. > Thanks! > > ------------------------------------------------------------ > Katherine Scrupa > Network Technology CCNA student, RRC Later Mike From rob.guderian at gmail.com Sat Jan 23 21:02:50 2010 From: rob.guderian at gmail.com (Rob Guderian) Date: Sat, 23 Jan 2010 21:02:50 -0600 Subject: [RndTbl] trying to set up ssh at home In-Reply-To: <4B5A685F.1090700@gmail.com> References: <4B5A685F.1090700@gmail.com> Message-ID: <899dd00d1001231902x6773fcbdh1152cbac5db107ee@mail.gmail.com> I agree with Rob Keizer, but Mike Pfaiffer has a point. I've set up ssh to my network a few times and it's generally the router blocking traffic. The best way to see if the router is blocking traffic (which it would only do to traffic coming in from an external ip) or if it's your install of ssh, try sshing to your machine from a different machine on your local network. If it still doesn't work it's likely a firewall issue on your machine. If it makes a successful ssh connection it's your router blocking traffic. Your router should allow port forwarding. Just forward port 22 to point to your linux box... and make sure you have it set to a static ip! I've had my machine's ip address change and ssh stops working then! Cheers rob g On Fri, Jan 22, 2010 at 9:09 PM, Mike Pfaiffer wrote: > Kat wrote: >> 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 done this a few times with OS X Macs (it takes 30 seconds to set > up) and ONCE with Linux. > >> 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". > > ? ? ? ?It's not getting as far as asking for a login? > >> 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 take it you are using the 192 address you give us below as the > destination... > >> 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? > > ? ? ? ?Sean will be able to give more specific advice, but I think the problem > isn't your router. I think it sounds like your computer is only > partially set up to accept incoming connections. You /may/ have to set > up the firewall or permissions in Linux to allow for incoming > connections on that port. By using localhost you aren't getting outside > your computer. By using the 192 address you are going to the router and > back. It would be nice to know if you can ssh out to a working > machine... This way we can determine where the problem is. I suspect you > are not far from a working solution (maybe a minute and a half). > > ? ? ? ?I use a DLink without any special setup and can access my Macs with my > Linux box. > >> 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. > > ? ? ? ?I think you almost have it. > >> Thanks! >> >> ------------------------------------------------------------ >> Katherine Scrupa >> Network Technology CCNA student, RRC > > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Later > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Mike > > _______________________________________________ > Roundtable mailing list > Roundtable at muug.mb.ca > http://www.muug.mb.ca/mailman/listinfo/roundtable > From peter at pogma.com Sat Jan 23 22:09:51 2010 From: peter at pogma.com (Peter O'Gorman) Date: Sat, 23 Jan 2010 22:09:51 -0600 Subject: [RndTbl] trying to set up ssh at home In-Reply-To: <899dd00d1001231902x6773fcbdh1152cbac5db107ee@mail.gmail.com> References: <4B5A685F.1090700@gmail.com> <899dd00d1001231902x6773fcbdh1152cbac5db107ee@mail.gmail.com> Message-ID: <20100124040950.GF14116@tw.local> On Sat, Jan 23, 2010 at 09:02:50PM -0600, Rob Guderian wrote: > The best way to see if the router is blocking traffic (which it would > only do to traffic coming in from an external ip)-- I always ssh to some remote machine, and then try to ssh back again to make sure that the router is set up properly etc. and that I can get to my home machine from a remote IP. If you don't have access to a remote machine for this there are sites that offer shell access with ssh for a one time $1 donation, or perhaps MUUG offers shell access to its members? Peter -- Peter O'Gorman http://pogma.com From john at johnlange.ca Tue Jan 26 12:34:48 2010 From: john at johnlange.ca (John Lange) Date: Tue, 26 Jan 2010 12:34:48 -0600 Subject: [RndTbl] trying to set up ssh at home In-Reply-To: References: Message-ID: <1264530888.6102.85.camel@linux-k6vx.site> On Fri, 2010-01-22 at 19:20 -0600, Kat wrote: > The problem is I am trying > ssh (my ip) > and I get "Connection refused". You haven't said what distribution of Linux you are running? The problem you report above is either: a) Your ssh daemon is not set to listen on the LAN ip address. b) ssh is listening, but the firewall on that machine (not the router) is set to block connections on the LAN interface. > 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? Before you go any further trying to get your router setup, you positively MUST get it working on the LAN first. You have accomplished step 1 already which is to confirm that ssh is working by sshing to localhost (127.0.0.1). Step 2 is to confirm that ssh is listening and reachable on the LAN IP. That is where you are now. Do this: # netstat -an | grep -E "tcp.*?22.*?LISTEN" You should see something like: tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN That means ssh is listening on all interfaces (IPs). If you still can't ssh to it from itself, then the firewall on the local machine is most likely blocking port 22. Turn the firewall off and try again. Once you've got the machine so it can ssh to itself on the LAN IP then, if you can, you should test ssh from another machine on the same LAN. Step 3 is to configure the firewall/router to port forward the SSH port on the external IP (the 24.x.x.x address) to the internal LAN IP 192.168.1.100). That should be fairly straight forward on the Linksys firewall. Then, ssh to it from the remote computer using firewall's Internet (external) IP address (not the LAN IP). One word of caution; before you do any of this, please make sure your passwords (especially your root password) is something very secure. Once you open up port 22, you will see literally hundreds of attempts per day to hack your root password. I personally recommend changing the port to something else but that throws a bunch more complications into the process and at this point just focus on getting it working, then you can move on to more advanced things like changing the default ssh ports (hint, look in /etc/ssh/sshd_conf). Regards, -- John Lange http://www.johnlange.ca From trevor at tecnopolis.ca Thu Jan 28 18:56:47 2010 From: trevor at tecnopolis.ca (Trevor Cordes) Date: Thu, 28 Jan 2010 18:56:47 -0600 Subject: [RndTbl] Shaw dropping on greylist? Message-ID: <20100129005647.GA11356@pog.tecnopolis.ca> 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 to delayed for 00:29:00 Jan 20 17:51:35 pog sendmail[12547]: o0KNpZhm012547: from=, 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 to delayed for 00:27:58 Jan 20 17:52:37 pog sendmail[12577]: o0KNqbE4012577: from=, 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 to delayed for 00:25:54 Jan 20 17:54:41 pog sendmail[12640]: o0KNsfrZ012640: from=, 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 to delayed for 00:19:41 Jan 20 18:00:54 pog sendmail[12857]: o0L00sXO012857: from=, 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 to delayed for 00:13:59 Jan 20 18:06:36 pog sendmail[13092]: o0L06ahf013092: from=, size=5720, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=idcmail-mo2no.shaw.ca [64.59.134.9] From john at johnlange.ca Fri Jan 29 09:13:54 2010 From: john at johnlange.ca (John Lange) Date: Fri, 29 Jan 2010 09:13:54 -0600 Subject: [RndTbl] Shaw dropping on greylist? In-Reply-To: <20100129005647.GA11356@pog.tecnopolis.ca> References: <20100129005647.GA11356@pog.tecnopolis.ca> Message-ID: <1264778034.3514.3.camel@linux-k6vx.site> A 29 minute grey list!? Are the people using this server really ok with a minimum 30 minute delay in getting their mail? Given that mail zombie's usually only try once for each email address, I have mine set to 30 seconds. Granted, the bots are getting more sophisticated and sometimes try more often but it's still effective. -- John Lange http://www.johnlange.ca On Thu, 2010-01-28 at 18:56 -0600, Trevor Cordes wrote: > 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 to delayed for 00:29:00 > Jan 20 17:51:35 pog sendmail[12547]: o0KNpZhm012547: from=, 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 to delayed for 00:27:58 > Jan 20 17:52:37 pog sendmail[12577]: o0KNqbE4012577: from=, 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 to delayed for 00:25:54 > Jan 20 17:54:41 pog sendmail[12640]: o0KNsfrZ012640: from=, 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 to delayed for 00:19:41 > Jan 20 18:00:54 pog sendmail[12857]: o0L00sXO012857: from=, 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 to delayed for 00:13:59 > Jan 20 18:06:36 pog sendmail[13092]: o0L06ahf013092: from=, size=5720, class=0, nrcpts=0, proto=ESMTP, daemon=MTA, relay=idcmail-mo2no.shaw.ca [64.59.134.9] > _______________________________________________ > Roundtable mailing list > Roundtable at muug.mb.ca > http://www.muug.mb.ca/mailman/listinfo/roundtable From athompso at muug.mb.ca Fri Jan 29 10:59:59 2010 From: athompso at muug.mb.ca (Adam Thompson) Date: Fri, 29 Jan 2010 10:59:59 -0600 Subject: [RndTbl] Shaw dropping on greylist? In-Reply-To: <1264778034.3514.3.camel@linux-k6vx.site> References: <20100129005647.GA11356@pog.tecnopolis.ca> <1264778034.3514.3.camel@linux-k6vx.site> Message-ID: <4B63140F.9020908@muug.mb.ca> On 2010-Jan-29 09:13, John Lange wrote: > A 29 minute grey list!? Are the people using this server really ok with > a minimum 30 minute delay in getting their mail? I had my personal mail server set to 2hrs in the very recent past, but with reasonably extensive whitelisting. > Given that mail zombie's usually only try once for each email address, I > have mine set to 30 seconds. > > Granted, the bots are getting more sophisticated and sometimes try more > often but it's still effective. Switched to postgrey, which had a default of 5 minutes, and noticed that such a short delay was permitting an awful lot of spam. Boosted it to 10 minutes, which cut things back down again (in combination with policyd-weighted, anyway). Considering that e-mail was never meant to be near-real-time in the first place... it wasn't so long ago that sendmail's default operation mode was queued-only on a 30-minute (or longer!) interval from cron. Heck, it wasn't even all that long ago that I got mail whenever I connected to my ISP and did an ETRN, twice a day. So a 30-minute delay in receiving mail seems perfectly fine to me. Plus, I would MUCH RATHER people believe that e-mail does NOT reach me immediately; the expectation of immediate delivery - implying immediate action, immediate comprehension and immediate reply - has been shown in multiple studies to destroy worker productivity. -Adam From gedetil at cs.umanitoba.ca Fri Jan 29 11:52:00 2010 From: gedetil at cs.umanitoba.ca (Gilbert E. Detillieux) Date: Fri, 29 Jan 2010 11:52:00 -0600 Subject: [RndTbl] Shaw dropping on greylist? In-Reply-To: <4B63140F.9020908@muug.mb.ca> References: <20100129005647.GA11356@pog.tecnopolis.ca> <1264778034.3514.3.camel@linux-k6vx.site> <4B63140F.9020908@muug.mb.ca> Message-ID: <4B632040.1030901@cs.umanitoba.ca> On 2010-01-29 10:59, Adam Thompson wrote: > On 2010-Jan-29 09:13, John Lange wrote: >> A 29 minute grey list!? Are the people using this server really ok with >> a minimum 30 minute delay in getting their mail? > > I had my personal mail server set to 2hrs in the very recent past, but > with reasonably extensive whitelisting. I for one welcome a return to delayed e-mail delivery!... ;) >> Given that mail zombie's usually only try once for each email address, I >> have mine set to 30 seconds. >> >> Granted, the bots are getting more sophisticated and sometimes try more >> often but it's still effective. > > Switched to postgrey, which had a default of 5 minutes, and noticed that > such a short delay was permitting an awful lot of spam. Boosted it to > 10 minutes, which cut things back down again (in combination with > policyd-weighted, anyway). > > Considering that e-mail was never meant to be near-real-time in the > first place... it wasn't so long ago that sendmail's default operation > mode was queued-only on a 30-minute (or longer!) interval from cron. I'm not sure what's typical these days, but I would assume 15 minutes or so would be a fairly common retry interval. That's why I set my greylisting delay on the CompSci mail server to 14 minutes. (And that's with a default whitelist policy, so it only affects particular addresses which are more likely to be spam senders or recipients.) On the MUUG server, I caved to pressure from some mailing list subscribers, and reduced the delay to 4 minutes (i.e. just under the 5 minute retry interval of some more aggressive mail servers). This seems to be working reasonably well. I've found that some spambots don't retry at all, in which case even a small delay is sufficient; some seem to retry quite persistently, in which case even a larger delay won't help. However, there is a 3rd type, which will retry for a short while before giving up. (We see these in our logs with a retry interval of a minute or less sometimes.) It's for that 3rd type that the retry delay will be more critical. In any case, I wouldn't see any need for a delay of more than 14 minutes. > Heck, it wasn't even all that long ago that I got mail whenever I > connected to my ISP and did an ETRN, twice a day. > > So a 30-minute delay in receiving mail seems perfectly fine to me. > Plus, I would MUCH RATHER people believe that e-mail does NOT reach me > immediately; the expectation of immediate delivery - implying immediate > action, immediate comprehension and immediate reply - has been shown in > multiple studies to destroy worker productivity. A valid point, but I don't think I'd want to use greylisting delays to try and enforce this sort of productivity enhancement. :) -- Gilbert E. Detillieux E-mail: 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 From gedetil at cs.umanitoba.ca Fri Jan 29 11:58:43 2010 From: gedetil at cs.umanitoba.ca (Gilbert E. Detillieux) Date: Fri, 29 Jan 2010 11:58:43 -0600 Subject: [RndTbl] Shaw dropping on greylist? In-Reply-To: <20100129005647.GA11356@pog.tecnopolis.ca> References: <20100129005647.GA11356@pog.tecnopolis.ca> Message-ID: <4B6321D3.9020306@cs.umanitoba.ca> On 2010-01-28 18:56, Trevor Cordes wrote: > 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. As I pointed out in another posting, I've got a maximum delay of 14 minutes on one mail server, and less elsewhere. I don't see much to be gained with a larger delay than that. I'm not sure this is relevant to your problem, but we've seen another issue with greylisting, e.g. in trying to accept mail from gmail.com servers. The problem there is that they don't necessarily (or even typically) retry from the same client IP address, so auto-whitelisting doesn't help, and you're almost always telling them to come back again later. We've had to whitelist entire IP ranges for gmail to get around this problem. In any case, there are a lot of "legit" mail servers out there that don't seem to handle greylisting well, which is why the default configuration with milter-greylist comes with a whole list of "broken mta" address ranges to whitelist. Perhaps you'll just need to do the same for Shaw? -- Gilbert E. Detillieux E-mail: Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg MB CANADA R3T 2N2 Fax: (204)474-7609 From john at johnlange.ca Fri Jan 29 12:08:37 2010 From: john at johnlange.ca (John Lange) Date: Fri, 29 Jan 2010 12:08:37 -0600 Subject: [RndTbl] Shaw dropping on greylist? In-Reply-To: <4B63140F.9020908@muug.mb.ca> References: <20100129005647.GA11356@pog.tecnopolis.ca> <1264778034.3514.3.camel@linux-k6vx.site> <4B63140F.9020908@muug.mb.ca> Message-ID: <1264788517.3514.113.camel@linux-k6vx.site> On Fri, 2010-01-29 at 10:59 -0600, Adam Thompson wrote: > Considering that e-mail was never meant to be near-real-time in the > first place... it wasn't so long ago that sendmail's default operation > mode was queued-only on a 30-minute (or longer!) interval from cron. > > Heck, it wasn't even all that long ago that I got mail whenever I > connected to my ISP and did an ETRN, twice a day. > > So a 30-minute delay in receiving mail seems perfectly fine to me. > Plus, I would MUCH RATHER people believe that e-mail does NOT reach me > immediately; the expectation of immediate delivery - implying immediate > action, immediate comprehension and immediate reply - has been shown in > multiple studies to destroy worker productivity. All perfectly logical; Next time a client calls complaining mail delivery is slow, I'll be sure to say: "Stop complaining! Heck, it wasn't so long ago that sendmail's default operation mode was queued-only on a 30-minute (or longer!) interval from cron!" That'll shut them up ;) heh. In all seriousness, _lots_ of clients have mail forwarded to mobile devices and they expect delivery to be nearly instantaneous. A 30+ minutes delay would never fly. It also tends to make troubleshooting mail delivery very difficult. (Tech in the field sends test email to client account, has to wait up to an hour to confirm if it's working or not). -- John Lange http://www.johnlange.ca