- Roundtable - muug.ca

From OpenWRT to DD-WRT
by John Lange 05 Jul '07

05 Jul '07

I have a Linksys WRTSL54GS (the one with the USB port) that was sitting on a shelf doing nothing since the OpenWRT load that I put on it was giving me problems. Just for the heck of it I decided to try and covert it to DD-WRT. I'm happy to report that it worked well simply using the "firmware upgrade" in the OpenWRT interface (I selected the "Erase JFS" option). The only gotcha was I could not authenticate on the web interface. Fortunately telnet is active and I was able to get in using the default username & password and then reset the http username/password with: ~ # nvram set http_passwd="" ~ # nvram commit nvram_commit(): end You then need to reboot the router from the command line (the web button seems broken?). This is documented here: http://www.dd-wrt.com/wiki/index.php/Index:FAQ#I_upgraded_from_early_SP2_to… Just thought someone else with OpenWRT might be contemplating the same thing. John

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Re: Point to point wireless
by John D 04 Jul '07

04 Jul '07

Adam mentioned his pleasure with Buffalo during winter meeting: "..whoever Buffalo contracted for the radio section .. was worth their pay.." Got some. They are good. A WHRG125 is $55 from DirectDial.com London,ONT ($100minOrder). For dealers, Buffalo's Cdn distributor is TechData. ANTENNA notes for DIRECTIONAL point-to-point: a) _Radio_ Line Of Sight "101" A radio-link path must have clear Fresnel Zone (an imaginary sphere midway between radio endpoints. Imagine a big cone facing a cone, and a beachball between them. We need to "see" All of that ball.) _Anything_protruding_ into that space _will_interfere_ e.g: tree, rooftop, occasional animal, hill, etc. b) in Adam's recent example(2) of "One router in the middle as AccessPoint, and Two as clients" the "Centre" unit there, will likely have to be an Omni, reducing benefit due to puny (omni=widely dispersed) downstream gain c) that tiny coax (extension) cable and connectors are easier to find now. Tony at TipTop has parts and crimpers. You can run this coax waaaay farther than you can run the DC for the router d) more than one single-malt scotch is also packaged in mylar coated cylinder, a la pringle-tube homebrew antenna Mike mentioned e) corollary to Meyer's Spousal Approval Factor, these haiku: " far easier to get Forgiveness, than it is to get Permission "

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Fwd: Winnipeg Area VMware User Group Meeting
by Gilbert E. Detillieux 20 Jun '07

20 Jun '07

Just FYI, for any of you interested in VMware, there will be a meeting here in Winnipeg... -------- Original Message -------- Subject: Winnipeg Area VMware User Group Meeting Date: Wed, 20 Jun 2007 08:12:38 -0400 From: The VMware Team <vmwareteam(a)connect.vmware.com> Reply-To: The VMware Team <vmwareteam(a)connect.vmware.com> If you are having trouble reading this email, read the online version <http://app.connect.vmware.com/e/es.aspx?s=524&e=DD3BE984CEB04E2FB3A9386842F…>. To manage your VMware subscription, please visit VMware Subscriptions <http://info.vmware.com/forms/Profile?elq=62C0906CCD73408AA110206042AA4577> <http://www.vmware.com?elq=62C0906CCD73408AA110206042AA4577> Winnipeg Area VMware User Group Meeting Invitation Join us for the upcoming Winnipeg Area VMware User Group meeting This is a great opportunity to meet with your Winnipeg area based peers to discuss virtualization trends, best practices and new technology. We hope you will join us on Wednesday, June 27, 2007 at Balmoral Hall School. Agenda - Roundtable and introductions - Presentation by EqualLogic on iSCSI SANS - Catherine Robinson and Jamie Turner from VMware will be on site to answer questions. Dinner sponsored by EqualLogic *Contact Info*: Mr. Carlos James (204) 784-1647 cjames(a)balmoralhall.com Map & Directions <http://app.connect.vmware.com/e/er.aspx?s=524&lid=704&elq=62C0906CCD73408AA…> <http://www.vmware.com/resources/communities/usergroup/events.html?elq=62C09…> <http://www.vmware.com/resources/communities/usergroup/events.html?elq=62C09…> June 27, 2007 5:30pm to 7:30pm Location: Balmoral Hall School 630 Westminster Avenue Winnipeg, MB R3C 3S1 Guests are required to sign in at the front desk see online directions <http://app.connect.vmware.com/e/er.aspx?s=524&lid=704&elq=62C0906CCD73408AA…> *VMware, Inc. 3145 Porter Drive Palo Alto CA 94304 USA Tel 650-475-5000 * Copyright © 2007 VMware, Inc. All rights reserved. VMware is a registered trademark of VMware, Inc. Thank you for registering with VMware. Any information that you provide to VMware will be treated in accordance with our Privacy Policy <http://www.vmware.com/help/privacy.html?elq=62C0906CCD73408AA110206042AA4577<FONT face=>. To manage your VMware subscription, please visit VMware Subscriptions <http://info.vmware.com/content/Subscription>

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mysql query_cache_size
by John Lange 13 Jun '07

13 Jun '07

Further to Sean's excellent presentation this evening; I had a look at the default config for mysql. mysql source code comes with a directory called "support-files" that (among other things) contains a set of recommended default config files. my-huge.cnf my-innodb-heavy-4G.cnf my-large.cnf my-medium.cnf my-small.cnf grepping for query_cache_size reveals that my-huge.cnf, my-innodb-heavy-4G.cnf, and my-large.cnf have the query_cache activated by default. Keep in mind these configs were originally created back in the day when 1G of memory was considered huge, I think most typical web servers can run with my-huge.cnf and a single user system (like a laptop) can use my-medium.cnf. The settings in my-huge.cnf look pretty reasonable and agree with the settings Sean was recommending. I mentioned that mysql creates .bin files when doing replication which is turned ON by default so the setting you should comment out is "log-bin" unless you are doing replication. This is especially true if you are doing lots of updates to your data. For example, I have a client that replicates a large access to database to mysql several times per day. The entire database is dropped and reloaded each time and this ended up exhausting many gigs of disk space just in mysql .bin files (and imagine how inefficient creating them was!). Just for interest sake, I checked some SUSE installs and the my-medium.cnf was the default so on a production web server this should be changed. The my-huge.cnf is included in the install but is not the default. Regards, John

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IRCd sendq setting?
by John Lange 07 Jun '07

07 Jun '07

I'm hoping someone on this list has setup an IRC server before. I'm trying to setup this strange software (hudlite-server) which communicates with its clients over IRC channels. The problem is the hudlite server keeps flooding itself off ("Excess Flood"). I'm pretty rusty on my ircd.conf but I increased the sendq for that connection class to 5120000 (~5M) but it still keeps happening. Anyone remember their IRC OPER days? # Y:<Class>:<Ping Frequency>::<Max Links>:<SendQ>:<Local Limit>:<Global Limit> Y:14:90::100:5120000:3.3:3.3 # I:<TARGET Host Addr>:<Password>:<TARGET Hosts NAME>:<Port>:<Class> I:*::*::14 This server is ircd v2.10.3p7 as packed with SLES10. John

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Shaw Port 25
by Kevin Scott 07 Jun '07

07 Jun '07

My Business account was just blocked from sending mail to my mail server. Talking to the techs, this applys to all Dynamic IP addresses, the only way around it is by getting a static IP. This according to the Tech I just got off the phone with. Can not order static IPs from tech support, have to contact business sales, which opens on monday..... Grrrr Kevin

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Anyone with Gentoo knowledge?
by Raymond J. Henry 07 Jun '07

07 Jun '07

Have a pretty nasty problem, and can't get hold of the guy that handles my Gentoo box..... And I'm pretty much lost on it, haven't been able to invest the time to learn it.... Now looks like the box has been hacked.... :/ So if you're up late, bored, want to make a couple of bucks, know Gentoo, email me directly.... :P

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Shaw Business
by Kevin Scott 06 Jun '07

06 Jun '07

While I don't have a dedicated-rep, Shaw Business customer service and techs are way better then on the Residental side. I call to complain about something, or ask to have something done, on my residental account, No, sorry we can't do that, or thats not possible. On the Business side, they just do it, no 15 min on hold, trying to get someone higher up, or someone who knows how to do a "push" on the modem, or what that even is (resending the config file to the modem). Business Side, I call the Sales or Tech number, no being put on hold, no IVR to wade threw, it just rings right through, sometimes longer when they are busy I suppose, but it just rings... When I was still living in Winnipeg, I had both DSL and Shaw, there was 50ms ping differences between pinging did.voip.les.net. My tests showed the DSL modem itself added 15ms delay in things. MTS with their DSL modems, they are technologly only able to upload at 640kb/s, download at 8Mbps, last time I had service, the fastest plan only used 512kb/s of that. Shaw's modems are 38/32Mbps Down/Up. So if they were to upgrade their infustructre, they could almost match the speed of a DS3. Kevin

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MUUG Meeting, June 12, 7:30pm -- LAMP Performance Tuning
by gedetil＠cs.umanitoba.ca 05 Jun '07

05 Jun '07

The Manitoba UNIX User Group (MUUG) will be holding its next monthly meeting on Tuesday, June 12th. The meeting topic for this month is as follows: LAMP Performance Tuning LAMP (Linux, Apache, MySQL, PHP/Perl) applications are popular for many reasons. As a site grows, some work has to go into maintaining the various components of the architecture so that bottlenecks are eliminated. This presentation by Sean Walberg will go over many of the things to look for in the LAMP components of high volume websites, based on his experiences with b5media.com. 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 $3.00 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/ -- 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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Shaw Static IPs
by Kevin Scott 04 Jun '07

04 Jun '07

Yeah, depending on the Business plan your on, some of them include Static addresses. Correction, looking at Shaw's site, they have recently changed it (since when I looked at it in May) removing most of their Business plans (used to be 5, now there are 3). Two static IPs for $19.95/month. The reason to stick with Shaw, the reason I went to them in the first place, no need to dial-up with PPPoE, I hated that. Kevin

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