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• WEP authentication suddenly failing in Ubuntu

  - by kellishaver

  I'm running Ubuntu 9.10 and after a recent reboot, I'm now unable to authenticate to wireless networks using WEP encryption. I can connect fine to open networks (no idea about WPA). When trying to connect via WEP, I'm continually prompted for the network key, which I know I have entered correctly (and should have been/is saved in my keyring anyway). Everything had been working fine until the reboot. No updates had been installed or configuration changes made. Hardware-wise, everything looks fine (http://pastebin.org/113777), and the fact that connecting to an open network works just fine leads me to think this is a software issue. I just don't know where to begin fixing it. Any insights would be greatly appreciated.

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• video streaming infrastructure advice

  - by Alchemical

  We would like to set-up a live video-chat web site and are looking for basic recomendations for software and hardware set-up. Most streams will be broadcast live from a single person with a web cam, etc., and viewed by typically 1-10 people, although there could be up to 100+ viewers on the high side. Audio and video do not have to be super-high quality, but do need to be "good enough". The main point is to convey the basic info in the video (and audio). If occasionally the frame-rate drops low and then goes back to normal fairly soon, we could live with that. Budget is an issue, so we are in general looking for a lower cost solution that will give us most of what we need in temers of performance and quality. We are looking at Peer1 for co-lo. The rest of our web site will be .Net / Windows platform. We are open to looking at any platform for the best streaming solution, although our technical expertise is currently more on the Windows side.

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• How to install old versions of gcc on Fedora without a VM?

  - by mikeh

  Hi, I need gcc 4.3 running alongside the shipped 4.4 on an FC13 machine. I can't do the VM solution discussed at http://serverfault.com/questions/88445/how-to-install-old-versions-of-gcc-on-fedora-12 since I need hardware access (CUDA computations on the graphics card). There's no compat-gcc-43 package (only compat-gcc-34). So I've built gcc by hand and am now trying to decide how to "install" it. Could anyone confirm that this was my only option, and/or suggest a best practice for how to manage the side-by-side gcc versions?

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• Door with keypad that can be controlled by website

  - by pbz

  Hi, I'm looking for some kind of the door/system that would allow us to install a door lock with a keypad. When somebody goes to that door they would enter a number that would open the door. The twist is that we need to be able to change the key combination that opens the door from a website. It needs to allow me to programmatically change the key combination required to open the door without somebody physically going there to do it. Any ideas what kind of hardware/software we would need to do this? Thanks a lot!

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• How to record my voice on a Mac Mini with headphones?

  - by user718408

  I'm try to record my voice via the headphone on a Mac Mini, but it's not working. I saw on Apple's site that the Mac Mini can record voice, but it doesn't seem to be working for me. Here is a hardware overview: Model Name: Mac Mini Model Identifier: Macmini3,1 Processor Name: Intel Core 2 Duo Processor Speed: 2.26 GHz Number Of Processors: 1 Total Number Of Cores: 2 L2 Cache: 3 MB Memory: 4 GB Audio: Make: Intel High Definition Audio Audio ID: 65 Headphone connection: Combination Output Line Input connection: Combination Input Speaker connection: Internal S/PDIF Optical Digital Audio Output connection: Combination Output S/PDIF Optical Digital Audio Input connection: Combination Input Any ideas how I can successfully get recording working?

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• dell u2410 3dMark Benchmark distortion problems

  - by Scanningcrew

  Ive been doing burn in testing for a new system I have put together and I am running into some video distortion problems with running the 3DMark benchmark tools (Both 06 and Vantage). The graphics will be fine, then sometimes during a test switch the screen will light up with thin horizontal ranibow lines (Something that looks very "glitchy") If i turn the monitor off and back on it clears up. All the tests "pass" and my system gets good marks but it concerns me if I might have problems with games (The screen returns to normal if I dont resest monitor and just let tests pass). I want to return a problem component now before its too late if it is something with the new hardware. Also, I am monitoring temp with thermal laser gun and the card itself is not going above 65c. Any ideas? System: Asrock x58 Xtreme - Last BIOS (1.80) EVGA Geforce GTX 285 w/ latest nvidia drivers (Connect via DVI1) Dell U2410(Set to 59hz refresh 1900x1202 -although I believe benchmarks run 1200x1024) Windows 7 Ultimate 64 12Gb DDR3 1600 RAM

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• Windows 8.1 fresh install with Windows 8 licence

  - by typ1232

  I purchased Windows 8 online from Microsoft a while ago. Today Windows 8.1 was released as a free update to Windows 8 users over the Windows Store. I was planning to do a fresh install of Windows 8.1 to have a clean system again and UEFI support because I got new hardware since the Windows 8 installation. So my questions are: Where do I get the ISO installation medium for Windows 8.1 64-bit? I tried this microsoft site where I initially got my Windows 8 ISO from, but when entering my Windows 8 key in the Windows 8.1 installer, it says the key is wrong. Even if I get the ISO, will my old key work? I'm concerned because it didn't work in their installer (see previous point) Do they seriously want me to reinstall Windows 8 and after that upgrade to Windows 8.1 through their Store?!

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• Cloud Computing - Multiple Physical Computers, One Logical Computer

  - by Koobz

  I know that you can set up multiple virtual machines per physical computer. I'm wondering if it's possible to make multiple physical computers behave as one logical unit? Fundamentally the way I imagine it working is that you can throw 10 computers into a facility one day. You've got one client that requires the equivalent of two computers worth, and 100 others that eat up the remaining 8. As demands change you're just reallocating logical resources, maybe the 2 computer client now requires a third physical system. You just add it to the cloud, and don't worry about sharding the database, or migrating data over to a new server. Can it work this way? If yes, why would anyone ever do things like partition their database servers anymore? Just add more computing resources. You scale horizontally with the hardware, but your server appears to scale vertically. There's no need to modify your application's infrastructure to support multiple databases etc.

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• Cloud Computing - Multiple Physical Computers, One Logical Computer

  - by bundini

  I know that you can set up multiple virtual machines per physical computer. I'm wondering if it's possible to make multiple physical computers behave as one logical unit? Fundamentally the way I imagine it working is that you can throw 10 computers into a facility one day. You've got one client that requires the equivalent of two computers worth, and 100 others that eat up the remaining 8. As demands change you're just reallocating logical resources, maybe the 2 computer client now requires a third physical system. You just add it to the cloud, and don't worry about sharding the database, or migrating data over to a new server. Can it work this way? If yes, why would anyone ever do things like hand partition their database servers anymore? Just add more computing resources. You scale horizontally with the hardware, but your server appears to scale vertically. There's no need to modify your application's supporting infrastructure to support multiple databases etc.

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• Freebsd or Linux? as BGP router over 100mbps

  - by Yucong Sun

  I am building a server to act as a BGP border router for my 100mbps uplink in ISP. I needs these feature: 1) Dual stack BGP peering/routing (at least 100Mbps, maybe more). 2) Potential full internet BGP feed. 3) Some basic ACL functionality. The hardware is L3426/8G ram. NIC will be on-board dual port Broadcom 5716. I've worked with Linux extensively before and it seems to be able to handle 100mbps, but I heard FreeBSD is faster on networking stuff. Which one should I use? And do we have some performance benchmark numbers out there? Cheers.

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• cloud/grid computing

  - by tom smith

  Hi guys. I'm appologizing in advance to the guys who will tell me this isn't a tech/server/IT issue! But I've been beating my head around this for a couple of days now. I'm trying figure out who to talk to, or which company I can approach to try to see if there are Grid/Cloud Computing companies who have programs setup to deal with colleges. I'm dealing with a compsci course, and we're looking at a few projects that would require a great deal of computing/computational resources. But in calling different companies (HP/Rackspace/etc..) I'm either not getting through to the right depts, or to the right people, or the companies just aren't setup for this. There are plenty of companies who have discounts for desktop software/hardware, but who in the biz deals with discounts/offerings for Cloud/Grid Computing solutions?? Any thoughts/pointers would be greatly appreciated. Thanks -tom

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• Disable Bing search entirely from IE when using sysprep

  - by takesides

  I'm creating a Windows Server 2012 R2 image for our product (an all-in-one appliance installed on server hardware) and I am having incredible trouble with getting Bing removed from Internet Explorer. Our clients do not want Bing at all, not as a default search, not as a "search from address bar" feature, not in any sense. I've managed to configure everything else that I want in IE using WAIK to generate an unattend XML file but this has me completely stuck. Ideally I want Bing removed from IE altogether but I would make do with it just being completely disabled. I can find no options in either WAIK or Group Policy to configure this as I need it. Any ideas gratefully received.

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• Disk full, du tells different. How to further investigate?

  - by initall

  I have a SCSI disk in a server (hardware Raid 1), 32G, ext3 filesytem. df tells me that the disk is 100% full. If I delete 1G this is correctly shown. However, if I run a du -h -x / then du tells me that only 12G are used (I use -x because of some Samba mounts). So my question is not about subtle differences between the du and df commands but about how I can find out what causes this huge difference? I rebooted the machine for a fsck that went w/out errors. Should I run badblocks? lsof shows me no open deleted files, lost+found is empty and there is no obvious warn/err/fail statement in the messages file. Feel free to ask for further details of the setup.

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• No audio input deviced are installed

  - by Meowbits

  If I go to Sound Recording Devices and it says "No audio devices are installed" If I click to set up a microphone I get an error "Wizard could not launch, No audio input device found, make sure your audio hardware is working properly and check your audio configuration in the Audio Devices and Sound Themes control panel. Where can I get an audio input device? I just want something so I can actually use the microphone on my headset. This is ridiculous. I have tried to look for any file but I simply cannot find a way to add an audio input device... I really do not want to format my computer just for this problem but I am starting to feel like that is the only option I have. I have the latest chipsets

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• Slow old notebook Hardy => Karmic

  - by Mailo

  Hi, i have one very slow notebook from year about 2000. On the computer is running icewm with firefox (in this times chromium for testing). My question is if it's good step to upgrade the system to Karmic Koala? I can't install another OS on that. It doesn't have CD-ROM, it can't boot from flash, or network. The new wanted state is little bit faster system for browsing web and copying photos to local NAS. I don't mention hardware configuration, becouse it's real speed is really deep below the paper parameters.

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• Recommended CPU upgrade for Dell Vostro 220 with E7300 processor?

  - by Justin Grant

  I've got a Dell Vostro 220 with an E7300 processor (Intel Core 2 Duo @ 2.66Mhz, LGA775 socket) and I'm thinking about upgrading my processor so I can run Windows Server 2008 R2 with Hyper-V, which requires Hardware Virtualization support in the processor. Yes, I know this is underpowered for a server, I'm actually using it as a desktop machine but I'd like to use Hyper-V instead of Virtual Server (which I'm using now for running VMs). I'd like to keep the same motherboard and ideally the same CPU fan and RAM too. Any suggestions for a good, relatively cheap (under $200) processor upgrade?

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• Upgrade AirPort on Macs to support Snow Leopard's Wake on Wireless/WLAN?

  - by wojo

  Snow Leopard now supports Wake on WLAN, but not all hardware supports this. For example, my Octo Mac Pro from early 2008 has an AirPort card, but it does not support this. Nor does my 2007 2.33GHz MacBook Pro. For reference to what is needed, look at http://www.macrumors.com/2009/08/28/a-closer-look-at-snow-leopards-wake-on-demand-feature/ which includes a screenshot of what the System Profiler should show. It's pretty hard to find Apple parts, but is it possible to put newer cards into these machines to have them support Wake on Wireless?

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• Unable to run VMs on hyper-v

  - by PRAWAT-DS

  Folks/Mates, I need some advise and assistance regarding the testing of Hyper-V. Here is my h/ware configuration: 1) Intel i5 processor (i5-750) 2) Intel M/B DP55WB 3) 6 GB DDR3 RAM OS = Server 2008 R2 Standart (evaluation copy). I installed 2008 r2 on my machine and added hyper-v role to it. I created 2 VMs and installed OS. But after finishing the OS installation the VMs are not booting up. After finishing the OS installation, the VM reboots automatically (normal behaviour) and shows "preparing your system for first time" after that it reboots and didn't come online. Few things to notice, when I am running "securable" on my server 2008 R2 OS it shows that processor is not supporting h/ware virtulization, but (since my desktop is dual boot) when I am running "securable" on my windows 7 OS, it shows that process "does" supports hardware virtulization. VT option is already enabled in BIOS. Any help and suggestions are highly appreciated :) Thanks in advance. Pradeep Rawat

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• Using 2-port LSI 2308-8e card to control 24 SAS HDDs

  - by GregC

  I would like to rely on a RAID-on-chip solution to control 24 SAS hard drives in a direct-attached environment. How would you approach this to get best bandwidth given that I'd like to spend less than $10,000 on the interconnect. I've read that LSI 2308 chip can easily handle 8-drive SSD RAID6 in hardware. I'd like to harness its power to control 24 SAS hard drives over an expander in an external enclosure. Currently I use an Infortrend S24S-G2240 external enclosure. It provides its own controller and expander. I'd like to use LSI 2308 controller for RAID6 somehow instead of the mystery controller in the enclosure. P.S. I tried to create SAS-expander as a tag, but my rep on this site is low.

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• [Ubuntu] How can i log-in to Ubuntu using USB-serial console (rs232) ?

  - by marc

  Welcome, How can enable remote terminal login into Ubuntu 9.10 using usb-serial terminal ? I got created device ttyUSB0 and i want allow to log-in using hyper-terminal. I found some resources but they are related to real! hardware rs232 ports, i can't find any information about USB converter. Right now i have established connection between that usb-serial port and my laptop (i can send text writing to port cp sometext.txt /dev/ttyUSB0 and read using hyperterminal). Any idea ? Regards

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• What are the best options for a root filesystem hosted on SSD under Linux

  - by stsquad

  I'm working on an embedded system which is going to be booting and hosting it's rootfs on an SSD disk. We are currently looking at using Intel X-18M SSDs. The file system structure will have a fairly static /usr section (modulo software upgrades) and an active /var and /var/log for maintaining state and logging. Given the wear-levelling done by the underlying flash does having separate partitions help or hinder? As modern SSDs appear as straight block devices and hide their mapping magic behind their firmware is there any point trying to optimise the choice of file-system that sits on-top of the SSD? Finally does enable SMART monitoring make any sense in this context or are their SSD specific ways of determining the underlying health of the storage hardware?

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• How to diagnose repeated freezing of windows 7 (comes back alive in few seconds)

  - by Akash Kava

  I installed Windows 7 in a 3 year old machine, it installed successfully, took all drivers and running great, but what happens is every 5-6 minutes it freezes for few seconds... 30 seconds to 1 minute and then comes back alive. I checked Event Viewer, nothing matching the frozen timeline. I would appriciate any help on how to detect causing service/hardware. After it comes alive, everything runs normal, I did run task manager and checked cpu usage, at time it freezes just before and after that no task took more cpu or memory, it was like idle machine. No external usb drives or no devices, on board intel desktop board with SATA HDD, SATA hdd running in absolute good mode.

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• Laptop and 2 screens: use screens but not monitor display

  - by ClarkeyBoy

  Hi, I have 1 VGA socket on my laptop, and currently have that in use by a large screen. At some point in the future I would like to get another one of these screens and use both screens in dual screen mode but not use my laptop display (to be honest my laptop display is pretty rubbish as its like 2/3s the size of my screen - even if I had the choice to use all 3 I probably wouldn't want to). Is it possible to achieve this? If so, what do I need by way of hardware / software, and how much do you reckon it should cost me? Thanks in advance. Regards, Richard

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• RAID P410i and P812 performance issues

  - by Alexey

  I'm having much trouble with I/O performance of HP DL360 server with two RAID controllers - P410i and P812, Windows Server 2008, 36 GiB RAM and 16 x Intel Xeon x5550. The server runs a bunch of tasks producing heavy sequential I/O, and after about 20-30 minutes of intensive work it looks like the tasks are stuck, not using CPU and with enough free memory (so this cannot be a bottleneck). The same tasks were running quite well on the older server (Windows Server 2003, 4 x Intel Xeon, 12 GiB RAM). RAID cache is present, write-cache battery is installed. Cache is configured as 25% readahead/75% writeback. The swap file resides on the logical disk served by P410i and other logical disks are on P812. Can someone tell me what can be the matter of this? Is this a hardware problem or misconfiguration?

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• How can I login to Ubuntu using a USB serial port?

  - by marc

  How can enable remote terminal login into Ubuntu 9.10 using a USB serial port? I created device /dev/ttyUSB0 and i want to allow logins using Hyper-Terminal. I found some resources but they are related to real hardware rs232 ports. I can't find any information about USB converter. So far I have established connection between that USB-serial port and my laptop. I can send text to the port (cp sometext.txt /dev/ttyUSB0) and read it using hyperterminal. What do I need to do to enable logins on this port?

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