- Roundtable - muug.ca

Bittorrent and Shaw
by Shawn Wallbridge 08 Nov '04

08 Nov '04

It appears that Shaw may be starting to throttle Bittorrent traffic on their network.... http://www.dslreports.com/shownews/56419 shawn

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screen
by Mel Seder 06 Nov '04

06 Nov '04

I was mucking around to see how wget and screen works. I think I made a mess :-( How do I get rid of the following three sockets? [mel@p4 mel]$ screen -ls There are screens on: 24910.pts-1.p4 (Detached) 26546.pts-3.p4 (Detached) 26630.pts-1.p4 (Attached) 3 Sockets in /tmp/uscreens/S-mel. [mel@p4 mel]$

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Computer freeze
by Michael Doob 05 Nov '04

05 Nov '04

On Friday 05 November 2004 12:01, roundtable-request(a)muug.mb.ca wrote: problem > > The computer is a Dell D600, with an ATI Radeon Mobility 9000. The OS is SuSE > 9.1, updated religiously. Today's installed RPMs include > kernel-default-2.6.5-7, XFree86-4.3.99, fglrx-3.12.0 (ATI's driver), and KDE > 3.3.1. > > Every now and then (sometimes once a day, sometimes once a month), the desktop > stops responding. The cursor follows the mouse, but clicks and keypresses > are ignored -- even Ctl-Alt-Delete, Ctl-Alt-Backspace, and Ctl-Alt-F1. This > usually happens when I'm scrolling BoingBoing.net (a long page) in Konqueror, > but I'm pretty sure that's not the only program that triggers the bug. > > The machine can be pinged, and I can slogin from elsewhere. When I do, I find > X consuming at least 99.8% of CPU. Killing X causes a complete lock-up; it > won't answer pings, and I have to power-cycle the > computer. /var/log/messages contains nothing between the slogin and the > restart. > > I've had the problem with KDE 3.2 and 3.1, with fglrx 3.11 and 3.9, and with > XFree's default "radeon" driver. > > Have you seen behavior like this? Do you have any suggestions? > I had the identical problem. It turned out that using OepnGL caused the video card to lock up. Ping would work since it only involved low level kernel calls. When I disabled the screen saver (or at least the parts that used the OpenGL) everything was fine. Cheers, Michael ------------------------------------------------------------------ Michael Doob Telephone: (204) 474-9796 Department of Mathematics Fax: (204) 474-7606 University of Manitoba email: Michael_Doob(a)umanitoba.ca Winnipeg, MB, Canada R3T 2N2 ------------------------------------------------------------------

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Epic Business Solution Day
by Spencer Kuziw 04 Nov '04

04 Nov '04

Greetings all, I realize it is a little last minute, but the company I work for is holding a technology exhibit at the Sharaton Hotel tomorrow, Nov 4 from 9am to 4pm. There will be Linux presentations from HP and Forecast technology as well as many other interesting sessions targeted to SMB. Best of all it is free and includes a decent lunch, too. Please visit www.epic.ca for more details.

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MUUG Meeting, Nov 9, 7:30PM -- OpenBSD Transparent Bridging Firewall
by gedetil＠cs.umanitoba.ca 01 Nov '04

01 Nov '04

[Posted to man.unix.general and other news groups] ------ Forwarded Article <cm63cl$rh7$1(a)canopus.cc.umanitoba.ca> ------ From gedetil(a)cs.umanitoba.ca (Gilbert E. Detillieux) The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting on Tuesday, November 9. The meeting topic for this month is as follows: Building a Transparent Bridging Firewall with OpenBSD Shawn Wallbridge will be presenting on how to create a transparent bridging firewall with OpenBSD 3.6. Shawn will demonstrate setting up the firewall, and will (time permitting) show how to use OpenBSD's pf firewall to monitor bandwidth usage, and getting the usage numbers into MySQL with some Perl. The group holds its general meetings at 7:30 PM 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 new 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 7:15 PM, so the meeting can start promptly at 7:30 PM. Don't be late, or you may not get in. Limited parking is available for free on the street, or in a lot across Ellice from IBM, for $1.00 for the evening. Indoor parking is also available nearby, at Portage Place, for $2.00 for the evening. ********************************************************************** For more information about MUUG, and its monthly meetings, check out their Web server: http://www.muug.mb.ca/ Also note that MUUG maintains two mailing lists, called "muug-announce" and "roundtable". If you're not already on these lists, we encourage you to subscribe now: http://www.muug.mb.ca/mailman/listinfo/ The "muug-announce" list is used for monthly meeting announcements (such as this one) as well as other important announcements of interest to MUUG members. The "rountable" list is meant to be a forum for follow-ups to topics discussed at the meetings, or for round-table-style discussion on other topics that come up between meetings. Of course, for this to be effective, we need to reach a certain critical mass. So, please subscribe, and stay involved! -- Gilbert E. Detillieux E-mail: <gedetil(a)muug.mb.ca> Manitoba UNIX User Group Web: http://www.muug.mb.ca/ P.O. Box 130, St-Boniface Phone: (204)474-8161 Winnipeg, MB, CANADA R2H 3B4 Fax: (204)474-7609 ------ End of Forwarded Article

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Booting from a DVD
by Mel Seder 16 Oct '04

16 Oct '04

Hi, would someone help me? The boot section of my BIOS is as follows. * are the current settings It currently boots to the Hard Drive even though a DVD is in the DVD drive. 1 Removable Device Disabled * Legacy Floppy LS-120 ZIP-100 ATAPI MO 2 ATAPI CD-ROM ASUS CD-S500-A * SONY DVD RW DRU-5 3 Other Boot Device * Disabled SCSI Boot Device INIT 18 Device (Network) 4 IDE Hard Drive Disabled * WDC WD300BB-00AUA1 WDC WD300BB-00AUA1 Plug and Play O/S = No I was expecting to see a device like DVD-RW and the SONY DVD as the option. What do I have to do to boot off a DVD I just burnt? Is something else wrong? ===== If I am not for myself, who will be for me? And if I am only for myself, what am I? And if not now, when? by: Hillel 100 BCE

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Using non-prvileged ports with NFS
by Ryan Podjan 14 Oct '04

14 Oct '04

Hi all, This is a follow-up to the question I asked at the Round Table. I have an NFS server running OpenBSD 3.3 and I'm trying to force it to accept client connections on non-privileged ports (i.e. ports>1024). mountd(8) says using the `-n` option should do just that. I've tried this, however, I can still only connect over reserved ports. Any ideas? Thanks, Ryan

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Re: [RndTbl] port forwarding
by gedetil＠cs.umanitoba.ca 14 Oct '04

14 Oct '04

According to Mel Seder: > Id like to use the following services and forward the applicable ports. I > used to know the password to my router softwear at 192.168.0.1 but I don't > anymore. I thought I did but it doesn't look I do. You may have to do a reset on the router box, then, to restore factory defaults, which means you'd have to reconfigure all the settings you had changed previously. > Part of my problem is that bittorrent seems to be running along fine and then > all of sudden the speed starts dropiing toward zero and eventually stops > working (even a Control-C) doesn't exit the app. However if I remove and > restore power to my router the download seems to magically start working again. > So I figured I'd see if there was newer router firmware and specifically open > up Bittorrent ports at the same time. > > Would you please let me know the ports for the following and any other items > you think might me useful? > > FTP > SSH You'd only need to configure these if you want to allow FTP and SSH connections _in_ to a system behind the router. SSH is easy: it's tcp port 22. FTP uses tcp port 21 for the control connection, and port 20 for the data connections, assuming you're using active-mode FTP. Since many FTP clients now use passive-mode FTP by default (to make it easier to work when going _out_ through a NAT-based router), you might have to enable an additional range of ports to allow for passive connections. Depending on which FTP server you set up, there may be a way to limit it to a particular range of ports for passive connections, which should (of course) match the settings on the router. > Bittorrent According to the URL I provided earlier... http://torrent.dulug.duke.edu/ "Open up ports 6881-6999/tcp so other clients can contact you for bits" I would assume this is the only port range you need to open up on the router to fix the bittorrent problem. > If you know of a well done sight that lists other common ports would you > please send me the URL. Well, I usually consult /etc/services first, but not all of the ports you might want to know about will be listed, and those that are there may not be very well understood, since there's no description or reference info. Here are URL's to some sites I've come across, which may be of use... TCP/IP Common Ports (from MyServer.org Dynamic DNS Services) http://www.myserver.org/help/ports.asp TCP/IP Ports for Internet Services http://www.chebucto.ns.ca/~rakerman/port-table.html Ports for Internet Services http://www.eviescreations.com/ports.htm Linnet Firewall TCP Ports http://www.linnetsol.co.uk/port-filter.asp Internet Services by Port Number http://www.graphcomp.com/info/specs/ports.html DoorStop Port List http://www.opendoor.com/doorstop/ports.html TCP/IP Services http://bfs-test.acns.fsu.edu/Network/portDescription.shtml Port Numbers for Port Forwarding http://kbserver.netgear.com/kb_web_files/n100495.asp No single list I've found is exhaustive, but by looking at a few, you're likely to find a decent description of whatever port numbers you're looking for. -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> 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

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port forwarding
by Mel Seder 14 Oct '04

14 Oct '04

Id like to use the following services and forward the applicable ports. I used to know the password to my router softwear at 192.168.0.1 but I don't anymore. I thought I did but it doesn't look I do. Part of my problem is that bittorrent seems to be running along fine and then all of sudden the speed starts dropiing toward zero and eventually stops working (even a Control-C) doesn't exit the app. However if I remove and restore power to my router the download seems to magically start working again. So I figured I'd see if there was newer router firmware and specifically open up Bittorrent ports at the same time. Would you please let me know the ports for the following and any other items you think might me useful? FTP SSH Bittorrent If you know of a well done sight that lists other common ports would you please send me the URL. ===== If I am not for myself, who will be for me? And if I am only for myself, what am I? And if not now, when? by: Hillel 100 BCE

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New kenel modules without reboot?
by John Lange 14 Oct '04

14 Oct '04

I would like to compile a driver module from the standard linux kernel source (2.6.x in this case) and then load it into the kernel without rebooting. I know this must be possible but my understanding of the details of kernel module loading are limited. Is it just a matter of selecting the drivers as modules, compiling, doing "make modules_install", and then modprobe to load the module? Where I'm confused is with updating the module dependencies etc. Thanks. John

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