January 2007 - Roundtable

Scripting question
by Kevin McGregor 31 Jan '07

31 Jan '07

I have this script: #!/bin/bash if [ -e /var/run/pgsql.pipe ]; then while [ -e /var/run/pgsql.pipe ] do psql -q -h padsysdb -U sysloguser syslog </var/run/pgsql.pipe done fi ...running on a Ubuntu Linux server. It's clearly very simple; it just keeps checking the named pipe /var/run/pgsql.pipe and sending the contents to the psql command, which interprets the input as a SQL command and executes it accordingly. My question is, given that I want this loop to execute (a) from server startup (b) indefinitely and without interruption, how do I reasonably ensure (a) and (b)? More specifically, where do I stick this (or an equivalent) in the startup scripts on Ubuntu, and is there a good automated way to make sure it keeps going? I really don't want to lose any of my database input. It's a fairly critical system, and I'd like to make this pretty robust. Kevin

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Fwd: Winnipeg Area VMware User Group Meeting
by Gilbert E. Detillieux 31 Jan '07

31 Jan '07

Just passing this along, in case any of you are interested... Gilbert -------- Original Message -------- Subject: Winnipeg Area VMware User Group Meeting Date: Wed, 31 Jan 2007 11:42:50 -0800 From: The VMware Team <do-not-reply(a)act.vmware.com> Winnipeg Area VMware User Group Meeting Invitation Join us for the upcoming Winnipeg Area VMware User Group meeting *Date:* February 8, 2007 *Time:* 5:30pm - 7:30pm *Location:* Balmoral Hall School 630 Westminster Avenue Winnipeg, MB R3C 3S1 *Note:* Parking available on-site. All guests are required to sign in. *REGISTER NOW! <http://www.vmware.com/vmug>* *Agenda:* - Greetings and Introductions - Round-Table: How do you use VMware in your Organization? - Dinner - Discussion by Jamie Turner of VMware: What are virtual appliances? - Closing Comments *For more information contact: * Carlos James Tel: (204) 784-1647 Email: cjames(a)balmoralhall.com *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/vmwarestore/privacy.html>. To manage your VMware subscription, please visit VMware Subscriptions <http://info.vmware.com/forms/Profile>. ------------------------------------------------------------------------ This message was sent by VMware using Responsys Interact <http://www.responsys.com/rsvp.asp>.

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Page Layout
by Michael Doob 31 Jan '07

31 Jan '07

If you are familiar with LaTeX, the program pdflatex (included with every standard distribution) will give you a pdfile in one step. 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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Encrypting a filesystem
by Kevin McGregor 24 Jan '07

24 Jan '07

Does anyone have any pointers on how to set up a server which will encrypt, say, the /home filesystem (~300 GB)? I'm open to any Linux or *BSD solution. Don't make me resort to using Windows! :-)

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Encrypting a filesystem
by Kevin McGregor 22 Jan '07

22 Jan '07

Does anyone have any pointers on how to set up a server which will encrypt, say, the /home filesystem (~300 GB)? I'm open to any Linux or *BSD solution. Don't make me resort to using Windows! :-)

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Ruby on Rails 1.2 release...
by Montana Quiring 19 Jan '07

19 Jan '07

Hello, I think Bill was talking about Ruby on Rails at the last MUUG. They've release a new version, 1.2. [quote] We're talking mime types, HTTP status codes, and multiple representations of the same resource serious. And of course there's the international pizzazz of multibyte-safe UTF-8 wrangling. That's just some of the headliner features. On top of that, there's an absolutely staggering amount of polish being dished out. The CHANGELOG for Action Pack alone contains some two hundred entries. Active Record has another 170-something on top of that. [/quote] I was also talking to him about a Perl web application framework called Bigtop that I'm considering playing around with: http://www.usegantry.org/ [quote] Bigtop is a code generator which can safely regenerate as thing change (like the data model). The bigtop script reads a Bigtop file to produce apps [/quote]

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Hobbes' Internet Timeline - the definitive ARPAnet & Internet history
by Bill Reid 15 Jan '07

15 Jan '07

Had not seen this timeline before. I found it quite interesting so I thought I would pass it along. http://www.zakon.org/robert/internet/timeline/ -- Bill

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Solaris in Winnipeg
by Shawn Wallbridge 13 Jan '07

13 Jan '07

Sun has an interesting Google Maps page showing Solaris installs that use their auto update feature. Here is Winnipeg... http://sysnet.sunwarp.net/maps/? lat=49.87184882890924&lng=-97.13459014892578&zoom=12&mtype=Sat or http://shorterlink.org/1536 shawn

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Cisco routers for sale
by Sean Walberg 12 Jan '07

12 Jan '07

I'm selling my Cisco lab. Before I put it on eBay, I thought I'd ask if anyone locally was interested. I don't have any pictures yet. This auction is for seven 2500 series routers, a 4000 series router, various cables, and accessories. All are in good working order. 2509: 16M RAM, 16M Flash, 1 Ethernet, 2 Sync Serial, 8 Async serial 2507: 16M RAM, 16M Flash, 1 Ethernet (16 port hub), 2 Sync Serial 2504: 16M RAM, 12M Flash, 1 Token ring, 2 Sync Serial, 1 ISDN BRI 2501: 16M RAM, 16M Flash, 1 Ethernet, 2 Sync Serial 2521: 16M RAM, 16M Flash, 1 Token Ring, 4 Sync Serial (2 high, 2 low), ISDN BRI 2514: 16M RAM, 16M Flash, 2 Ethernet, 2 Sync Serial 2514: 4M RAM, 8M Flash, 2 Ethernet, 2 Sync Serial 4000M: (4M Flash, 16M DRAM) 1 Token Ring, 4 Serial 24 port Token Ring Switch Cables: 1 x 8 port async (octopus) cable for the 2509 to console into the other devices 5 x DB60 DTE-DCE (ie serial crossover for the 2500s) cables 4 x DB60-RS232 DTE-DCE (serial crossover for the 4000 to a 2500) cables 2 x token ring connectors for the 2500s Power + Ethernet cables Don't worry about buying your CCNA/CCNP/CCIE lab in parts (not to mention separate shipping charges), this is a ready to go lab setup with eight routers. I have happily used it over the past few years for CCNP studying and writing, including all the scenarios at ccnprecertification.com. Despite the equipment's age, it's still great for lab scenarios with BGP, OSPF, EIGRP, NAT, IPv6, multicast, and IPSEC VPNs. The 2509 has 8 async serial ports to act as a terminal server, just like on the CCIE lab. The 2521 and 4000M make great frame relay simulators. Put the 2514s into bridging mode and you can even play with spanning tree. Pick up an ISDN emulator and you can do dial on demand scenarios (or do it over the AUX port with the gear as it is) All the necessary cables and transceivers are included to hook the routers together and get started. I'll even include "Routing TCP/IP volume 1" by Jeff Doyle to make you a guru of interior routing protocols and "CCNA Video Mentor" by Wendell Odom if you're just starting out. -- Sean Walberg <sean(a)ertw.com> http://ertw.com/

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Migrate to new, larger hard drive
by Kevin McGregor 10 Jan '07

10 Jan '07

Here are a couple of links regarding migrating a Linux/BSD system to a new hard drive: http://www.faqs.org/docs/Linux-mini/Hard-Disk-Upgrade.html http://reactor-core.org/disk-migration.html They're a bit old, but helpful anyway. Just searching with Google for "Linux migrate to new hard drive" should produce some additional useful links. http://www.google.ca/search?hl=en&q=linux+migrate+to+new+hard+drive&btnG=Go…

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