December 2006 - WLUG - wlug.mailman3.com

looking for a PCI graphics card
by Bill Mills-Curran 20 Dec '06

20 Dec '06

The graphics (motherboard) on my linux box have stoped... I still have an ascii screen, but no graphics. (No errors in any logs, so I suspect a hardware failure.) I'm looking for a cheap PCI graphics card to see if that fixes the problem. Even a loaner would help. Thanks, Bill

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Senior System Administrator position available
by Dwight A. Ernest 19 Dec '06

19 Dec '06

Since this list has been a source of some good contract work for me in the past, I thought I'd return the favor. In my capacity as IP Ops director at RNK Communications (http://www.rnkcomm.com/), I'm looking for a Senior Systems Administrator. Knowledge of FreeBSD, Linux, and Cisco networking, in that order, is required/desired. The full job posting may be viewed at http://www.rnkcomm.com/career.htm#srnetwork. Thanks!

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Linksys Router
by Gary Hanley 18 Dec '06

18 Dec '06

I recently upgraded my router to a WRT45GS and have been having a bear of a time trying to figure out why, when I boot Linux, I can't get an IP address from the router but with Windows I can. It worked with the old router. It works with Windows. There are no DHCP tweaks in the router. What the hell is wrong? Turns out that there a bug in the router. It doesn't like Linux-based DHCP requests. This is a known issue and apparently Linksys has no intention of fixing it. But they did release a Linux-compatible version of the router instead. So my options are to either by the Linux-compatible version or find another brand that supports Linux (or better, doesn't exclude Linux) and is as good wireless performance-wise as the Linksys routers. Any recommendations? I know there is an open source firmware product that can be applied, but I'm not ready to try that yet as I work from home a lot and I'm in the middle of an important project so I need a stable VPN connection right now. -- Gary

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x.mount
by Jamie Guinan 18 Dec '06

18 Dec '06

Hi all, I meant to post the little script I use to manage FUSE mounts. Here it is, http://www.bluebutton.com/wlug/x.mount I put some dummy entries in the fstab, including one with "foo" to exercise the not-handled case. -Jamie

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Balloon board
by Andre Lehovich 15 Dec '06

15 Dec '06

After the meeting a few of us chatted about embeded hardware projects. The Balloon Board, based on the Strongarm CPU, has all open specs. Unfortunately it looks like a sample board is about $700. http://balloonboard.org/ An example product built using the board: http://www.toby-churchill.com/english/product_info/index.html --Andre ____________________________________________________________________________________ Need a quick answer? Get one in minutes from people who know. Ask your question on www.Answers.yahoo.com

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Fuse and other users
by Jamie Guinan 15 Dec '06

15 Dec '06

The other night I was trying to find the code where FUSE [dis]allowed other users to access files, but I couldn't remember where it was. Found it in fs/fuse/dir.c, /* ... * For this reason only those processes can call into the filesystem, * for which the owner of the mount has ptrace privilege. This * excludes processes started by other users, suid or sgid processes. */ static int fuse_allow_task(struct fuse_conn *fc, struct task_struct *task) { if (fc->flags & FUSE_ALLOW_OTHER) return 1; if (task->euid == fc->user_id && task->suid == fc->user_id && task->uid == fc->user_id && task->egid == fc->group_id && task->sgid == fc->group_id && task->gid == fc->group_id) return 1; return 0; } The FUSE_ALLOW_OTHER flag is set when you invoke a fuse program like sshfs with "-o allow_other". -Jamie

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Fuse "slides", other notes
by Jamie Guinan 14 Dec '06

14 Dec '06

FUSE presentation, http://www.bluebutton.com/wlug/fuse-presentation/index.html Thanks for putting up with the delays due to my ill-preparedness in forgetting my port-replicator, and big thanks (again) to Frank S. for hooking me up with the Mac laptop. Before we settled on using the Mac, I was going to try this, http://www.karlrunge.com/x11vnc/ but it was slow to install and I didn't want to delay the presentation any further. It lets you export your whole X display over VNC. I just tried it on a system here, and it does work - in fact, if you run the viewer on the same host, you get an "infinite hall of mirrors effect", like pointing a webcam at your monitor, http://www.bluebutton.com/wlug/x11vnc-hom.png A useful tool for remote access, AND for Cthulhu to inflict non-euclidean madness on X11 users! :) Happy holidays all! -Jamie

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[Fwd: Immediate Need: Senior Software Engineer]
by Arllen 13 Dec '06

13 Dec '06

I got these job postings from a recruiter I keep in touch with. Both jobs are for software engineers with Linux/Unix experience. Arllen -------- Original Message -------- Subject: Immediate Need: Senior Software Engineer Date: Mon, 11 Dec 2006 13:19:19 -0600 From: General Employment Enterprises, Inc. <wob(a)genp.com> To: <arllen(a)earthlink.net> I have two excellent perm opportunities for a Senior Software Engineer that are a high priority for my client. They make a Software Intrusion Detection Product. I pasted a brief description below for both positions. If interested give me a call anytime from 7 AM till 5 PM. Dewayne Palm General Employment 781-938-7950 dpalm(a)genp.com ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Network Application Software Engineer Our client is an exciting software company with a suite of applications that protect some of the largest networks in the world. With a client base of Fortune 250 customers they make network behavioral analysis software that identifies potential threats by understanding how normal network traffic acts. The Network Application Software Engineer will work in the corporate offices (Boston) and will report to the VP of Engineering. This is a full life cycle product development position where you will have the opportunity to get involved in everything from requirements gathering through coding and support. If you are looking for a start up environment where you can really make an impact and you are looking to work with some of the coolest technology with some of the brightest people than this is the place for you. Pick up the phone and call one of our recruiters today. Requires: 1. C++ 2. Perl 3. Linux/Unix 4. Systems Programming including Network APIs, multithreading, memory mapping...) Plusses: 1. TCP/IP 2. Relational Databases 3. Product Development 4. Additional scripting languages. 5. Excellent Mathematics background ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++ Description: GUI Software Engineer Our client is an exciting software company with a suite of applications that protect some of the largest networks in the world. With a client base of Fortune 250 customers they make network behavioral analysis software that identifies potential threats by understanding how normal network traffic acts. The GUI Software Engineer will work with the product development team and create user-friendly front-ends for their suite of applications. You will need to be comfortable working with customers and have a solid knowledge of PHP, Perl and JavaScript (other scripting languages would be a plus.) All development is done in a Unix/Linux environment. A solid mathematics background and knowledge of TCP/IP is very helpful. Requires: 1. PHP, Perl and JavaScript 2. Linux/Unix Plusses: 1. Solid knowledge of TCP/IP

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Re: [Wlug] REMINDER: Meeting Wed 7:00 PM
by Gregory Avedissian 12 Dec '06

12 Dec '06

Hi Andy, If you still want to get rid of your 36G scsi drive, I'm still interested in giving it a new home. Thanks. Greg

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kernel / video problem
by Bill Mills-Curran 12 Dec '06

12 Dec '06

Some kind of email loop started on my system yesterday that generated a huge inbox (> 20 GB) on my system. It was detecting a relay loop and then emailing the error which triggered another one. Each email was larger than the last because it contained an account of all the previous errors. After cleaning everything up, I rebooted because some processes had failed due to lack of memory. After rebooting to runlevel 5, I could not get back to graphics mode, at least a visible graphics screen. Although I can sometimes get a graphics screen showing boot progress, it never gets to the splash screen. Everything from the text/console screens looks normal. I have not found any errors in the system log. I've tried switching monitors, and get the same result. Now I've noticed errors in my logwatch email for the last 2 days (same error twice): --------------------- Kernel Begin ------------------------ WARNING: Kernel Errors Present [<c01037ef>] error_code+0x4f/0x54 ...: 69 Time(s) [<c0313190>] do_page_fault+0x0/0x630 [<c01037ef>] error_code+0x4f/0x54 ...: 62 Time(s) Normal free:3224kB min:2776kB low:3468kB high:4164kB active:206364kB inactive:206236kB present:498944kx630 [<c01037ef>] error_code+0x4f/0x54 ...: 1 Time(s) ---------------------- Kernel End ------------------------- Because I had not previously noticed this error, I was thinking that the video problem was hardware -- I was starting to look for a replacement video card. Now I'm not so sure. What do these kernel errors mean? Where are they logged? Are the problems related (kernel errors & video problem)? Any opinion whether this is a hardware or software problem? TIA, Bill

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