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  • How does Linux determine the SCSI address of a disk?

    - by Chris Sears
    Greetings, I'm working with RHEL 5.5 guest VMs under VMware ESX 4. When I configure the virtual disks in the VM hardware settings, each disk has a SCSI address in the format "N:M". For example, "1:3" would mean SCSI host number 1 and SCSI target ID 3. When I look at the disk info from the VM's BIOS or a Windows OS, the detected SCSI address info matches up with the virtual hardware settings. But under Linux, the SCSI address components don't match up, at least not completely or consistently. I've tried the three supported virtual SCSI and SAS drivers and they all seem to be "broken", but in different ways. Here's a list of the virtual hardware addresses vs what was detected under Linux with each of the drivers: Driver vHW Addr Linux Addr -------- -------- ---------- LSI SAS 0:0 0:0 LSI SAS 0:3 0:1 LSI SAS 0:6 0:2 LSI SCSI 1:1 2:1 LSI SCSI 1:4 2:4 LSI SCSI 1:7 2:7 pvSCSI 2:2 1:2 pvSCSI 2:5 1:5 pvSCSI 2:8 1:8 My main question is why does this happen under Linux? The next question is: how do I get it fixed or fix it myself? If I was going to guess, I'd say it's an issue with how the kernel is handing out the SCSI host number and how the Linux SCSI driver (included with VMware tools) is detecting the SCSI target number. Perhaps the order the drivers are loaded also has something to do with the issue. I'm guessing this would not involve udev, but I could be wrong. Any thoughts would be appreciated. Thanks! PS. My environment is VMware, but I don't need an answer for these drivers specifically. I imagine this might be a problem with any SCSI driver under Linux.

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  • Single sign-on for SharePoint to MySite?

    - by Chris W
    I've got a fairly simple SharePoint 2010 farm set up: 2 WFE servers with Network Load Balancing hosting the main portal site. As per Microsoft's best practice recommendations I've set up My Sites in a separate web application. As some of the user base are not using domain joined PCs they have to login once for the portal (http://portal) and then again when the access My Sites since they're crossing in to a separate web application on a separate host (http://mysite). Portal & MySite are both hosted on the same physical WFE servers. Is there an easy way to set up some thing to stop this happening and just have them login once? I understand that there's plans for us to deploy ISA in the not too distant future - could we use ISA to manage authentication to the two sites so that the users only need to log in once?

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  • Edit Enterprise Calendar in Project Server 2010

    - by Chris W
    Has anyone been able to successfully edit the Standard calendar in 2010? I'm trying to change the working times as none of our admin accounts seem able to do it. We're running Project Server 2010 RTM on SharePoint 2010 RTM with Project Pro 2010. When I click the Edit Calendar button in PWA it triggers Project client to open up but it just opens up an empty project and I've not access to edit the Standard calendar using any of the published steps. It would be great to hear if someone has managed to do this so I can work out if it's a general glitch in this build or is it just a problem with out setup.

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  • Firefox appending .xls extension to .xlsx files

    - by Chris Lively
    We are serving files with the .xlsx (excel 2007/2010) extension. IE, Chrome, Safari all download the file and open excel just fine. Firefox is being stupid. For some reason it's appending .xls to the extension. I found this: https://support.mozilla.com/bs/questions/758363 However, the instructions weren't very specific and completely unclear to me. How can I tell Firefox not to screw with the file extension? Thanks,

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  • How does the "Steam" platform work? Is it DRM? Can I trust "Steam"-powered games?

    - by Chris W. Rea
    So – I just bought the new game Supreme Commander 2. This question is not about the game, but about the online software installation platform that it seems to require. I haven't bought a game in a long time, and I'm puzzled: Apparently, SC2 is a "Steam"-powered game. When I went to install the game, it asked me to either create a new Steam account, or log in with an existing account. I clicked "Cancel" because I don't plan to play online and I don't want anything unnecessary installed on my computer, since I only plan to play single player! However, after clicking "Cancel", the installer asked for my confirmation that I indeed wanted to cancel installation of the game! I thought I was just canceling the "online" portions! So I really want to know: How do "Steam" powered games work? Is this essentially a form of DRM (Digital Rights Management)? Can I trust this software platform? Has anybody done any independent verification on how this platform works? (I'm very leery of any DRM after the Sony BMG CD copy protection scandal. Thank goodness for Mark Russinovich.) Does the "Steam" platform install anything particularly nasty or unwanted on my computer?

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  • Lockup when unlocking screen saver

    - by chris
    I've had this happen a couple of times - screen saver kicks in, locks the screen, and when I put my password in to unlock it the system just seems to hang. Cursor turns to the busy, HDD light flickers occasionally, but the only thing I can do at that point is power down. This is on a desktop, not a laptop and according to the bios all the power saving is turned off. Has anyone else seen this? Is there a way to prevent it, or at least diagnose the cause?

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  • Win7 Install - diskpart shrink command

    - by chris
    I have an existing XP installation on a 160GB disk, with about 90 GB free. I'm trying to install Win7 on the same HDD, following directions from here. The question is: How long should it take to run the "shrink" command, given the above parameters? How much space will that free up for Win7?

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  • How should I setup separate mx records for a subdomain?

    - by Chris Adams
    Lets say I have a domain that I run a web app on, for example cranketywidgets.com, and I'm using google apps for handle email for people work work on that domain, i.e. support@ cranketywidgets.com, [email protected], [email protected] and so on. Google's own mail services aren't always the best for sending automated reminder emails, comment notifications and so on, so the current solution I plan to pursue is to create a separate subdomain called mailer.cranketywidgets.com, run a mail server off it, and create a few accounts specifically for sending these kinds of emails. What should the mx records and a records look like here for this? I'm somewhat confused by the fact that mx records can be names, but that they must eventually resolve to an A record. What should the records look like here? cranketywidgets.com - A record to actual server like 10.24.233.214 cranketywidgets.com - mx records for google's email apps mailer.cranketywidgets.com - mx name pointing to server's ip address Would greatly appeciate some help on this - the answer seems like it'll be obvious, but email spam is a difficult problem to solve.

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  • Software to run a mozy/carbonite "online backup" server?

    - by chris
    I am interested in creating a server that is similar to the mozy/carbonite, but I want to run it myself. So I will need server software of some sort (we run ubuntu), and client software that runs in the background and uploads data from specified folders as it is changed. Basically i want to run the equivalent of mozy or carbonite for an internal corporate network. Clients are all WinXP

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  • Apache 2: I have multiple domain names I want to point to one Virtual Host. Do I use ServerAlias?

    - by Chris Altman
    I have multiple domain names, for example: www.foo.com www.goo.com www.moo.com www.coo.com I want all of these domain names to resolve to one website AND to redirect to www.foo.com What is the best method to achieve this? Multiple entries? Use ServerAlias? Something else? If the best method is ServerAlias, what is the syntax? ServerAlias www.goo.com, www.moo.com, www.coo.com

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  • What lasts longer: Data stored on non-volatile flash RAM, optical media, or magnetic disk?

    - by Chris W. Rea
    What lasts longer: Data stored on non-volatile flash RAM (USB stick or SD cards?), optical media (CD, DVD, or Blu-Ray?), or magnetic disk (floppies, hard drives?) My gut tells me optical media, but I'm not sure. Furthermore, which of those digital media would be most suitable for long-term data storage where environmental issues are unknown, such as low/high temperature or humidity? For example, what digital media could be stored in a basement, attic, or time capsule, and be expected to survive a reasonably long time? e.g. a lifetime, and then some. Update: Looks like optical media and magnetic tape each have one vote below. Does anybody else have an opinion or know of a study comparing the two?

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  • Create 8.3 name for an existing directory

    - by Chris Karcher
    I have a machine that initially had 8.3 filename creation disabled. However, this was causing issues with some legacy software, so it was re-enabled. I'm wondering if it's possible to go back and "add" 8.3 filenames to certain existing directories. For example, say I have a directory named "C:\name with spaces" and I get the following output when I run "dir /x": C:\>dir /x Volume in drive C has no label. Volume Serial Number is 6873-65B8 Directory of C:\ 04/09/2010 01:57 PM <DIR> name with spaces ... I'd like to somehow add an 8.3 name for the directory without recreating it, and then get the following: C:\>dir /x Volume in drive C has no label. Volume Serial Number is 6873-65B8 Directory of C:\ 04/09/2010 01:57 PM <DIR> NAMEWI~1 name with spaces ... I tried the 'rename' command but it didn't do the trick.

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  • How do I securely execute commands as root via a web control panel?

    - by Chris J
    I would like to build a very simple PHP based web based control panel to add and remove users to/from and add and remove sections to/from nginx config files on my linode vps (Ubuntu 8.04 LTS). What is the most secure way of executing commands as root based on input from a web based control panel? I am loathe to run PHP as root (even if behind an IP tables firewall) for the obvious reasons. Suggestions welcome. It must be possible as several commercial (and bloated, for my needs) control panels offer similar functionality. Thanks

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  • Folder Aliases in Dock or List View cannot be expanded?

    - by Chris
    I have been increasingly frustrated with the fact that you cannot expand a folder alias in the Finder "List View" via the "expand triangle" or in the dock. If I add a folder to the dock that contains folders and aliases to other folders, I can drill-down the "real" folders, but cannot on the aliases. Does anyone know a way to make this work?

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  • How to securely delete files stored on a SSD?

    - by Chris Neuroth
    From a (very long, but definitely worth to read) article on SSDs: When you delete a file in your OS, there is no reaction from either a hard drive or SSD. It isn’t until you overwrite the sector (on a hard drive) or page (on a SSD) that you actually lose the data. File recovery programs use this property to their advantage and that’s how they help you recover deleted files. The key distinction between HDDs and SSDs however is what happens when you overwrite a file. While a HDD can simply write the new data to the same sector, a SSD will allocate a new (or previously used) page for the overwritten data. The page that contains the now invalid data will simply be marked as invalid and at some point it’ll get erased. So, what would be the best way to securely erase files stored on a SSD? Overwriting with random data as we are used to from hard disks (e.g. using the "shred" utility) won't work unless you overwrite the WHOLE drive...

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  • AWS VPC public web application connecting to database via VPN

    - by Chris
    What I am trying to do is set up a web application that is public facing but makes calls to a database that is on an internal network. I have been trying to set up an AWS VPC with a public subnet, private subnet, and hardware VPN access but I can't seem to get it to work. Can someone help me understand what the process flow here should be? My understanding is that I need a public subnet to handle the website requests and then a private subnet to connect to the VPN but what I do not understand is how to send requests down the chain and get the response. Basically what I am asking is how can I query the database via VPN from that public website? I've tried during rout forwarding but I can't successfully complete the process. Does anyone have any advice on something I can read on this subject or an FAQ on setting something like this up? Is it even possible? I'm out of my league here, this is not my area of expertise but I'm being asked to solve this problem. Any help would be appreciated. Thanks

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  • OS X will not register newly installed network adapters

    - by Chris
    I have purchased an Edimax 7318USg and tested it on a Windows machine (works). The installation process for the software for this adapter runs smoothly. However, OS X simply does not recognize new network adapters. When you go to System Preferences/Network, a new network adapter should be present/there should be an alert. This is not the case. Why might this be? Is there a setting I may reset to force the operating system to recognize this? Thanks!

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  • How do I set up an anonymous autoversioning mod_dav_svn server?

    - by Chris R
    I would like to create a DAV SVN server with autoversioning that has no access control of any kind. I experimented with several variations on this, but every one of them runs into this error in the end: "Anonymous lock creation is not allowed." So, as a fallback option I would like to configure my SVN Location to have default credentials. Is this possible? Is there a better way to do what I'm trying to do?

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  • what is the best mid/high-end class audio/music creation audio sound card?

    - by Chris
    Hello, I have a computershop myself, and I repair computers. But one of the things I really don't know (yet) is the performace od audio cards for music creation with midi. I have searched and searched and came up with some good reviews, but after browsing for a couple of hours I could't see the trees trough the forrest :-D (it's a dutch expression) At one moment I thought the M-Audio - Delta 1010LT would be a good PCIe card, later on I read that this card was released years ago. (but that could be false information) Also any personal expierence would be great, but not necessairy. I have searched a few cards, and I hope someone can help me make a choice for a friend of mine. He's buget is between $100 and $350 I know there are audio cards from $ 500 - $1850,- this is just too expensive. The following specs are crucial: ASIO Midi Mic in minimal 5.1, 7.1 recommended it's not for airplay, but just to compose music at home. using Ableton and midi keyboard. 1. M-Audio - Delta 1010LT: 8 x 8 analog I/O 2 mic preamps or line inputs S/PDIF digital I/O (coaxial) with 2-channel PCM SCMS copy protection control digital I/O supports surround-encoded AC-3 and DTS pass-through 1 x 1 MIDI I/O directly drive up to 7.1 surround (bass management software included) software controlled 36-bit internal DSP digital mixing/routing +4dbu/-10dBV operation individually switched in software word clock I/O for sample accurate device synchronization 2. RME HDSP 9632: * Stereo Analog Ein- und Ausgang, symmetrisch*, 24-Bit/192kHz, > 110 dB SNR * Optionale Erweiterungsboards mit je 4 symmetrischen Ein- und Ausgängen * Alle analogen I/Os voll 192 kHz-fähig, also keine Reduzierung der Kanalzahl * 1 x ADAT Digital In/Out, 96 kHz-fähig (S/MUX) * 1 x SPDIF Digital In/Out, 192 kHz-fähig * 1 x Breakout Kabel für koaxialen SPDIF-Betrieb* * Also bis zu 16 Ein-und Ausgänge gleichzeitig nutzbar! * 1 x Stereo Kopfhörerausgang, parallel zum analogen Ausgang, aber eigene Pegelanpassung * 1 x MIDI I/O für 16 Kanäle Hi-Speed MIDI über Breakout Kabel * DIGICheck, RMEs einzigartiges Meter- und Analysetool mit Spectral Analyser, Professionelle Level Meter 2/8/16-Kanalig, Vector Audio Scope und diversen weiteren Analysefunktionen * HDSP Meter Bridge: Frei skalierbare Levelmeter mit Peak- und RMS Berechnung in Hardware * TotalMix: 512-Kanal Mischer mit 40 Bit interner Auflösung 3. EMU 1212M (1212 M) PCIe: * Top kwaliteit convertors 24-bit/192kHz convertors. * Hardware gestuurde effecten. * DSP zero-latency hardware mixen en monitoring. * Analoge en digitale I/O plus MIDI. * EMU Production Tools Software Bundle - Cakewalk SONAR , Steinberg Cubase LE, Ableton Live E-MU Edition **EMU 1212M PCI-e inputs/outputs:** * 2 balanced jack inputs. * 2 balanced jack outputs. * 24-bit/192kHz ADAT I/O. * 24-bit/192kHz Coaxiale S/PDif I/O switchable to AES/EBU. * MIDI I/O. 4. M-Audio Audiophile 192: - Up to 24-bit/192kHz audio - 2 balanced analog inputs (1/4” TRS) - 2 balanced analog outputs (1/4” TRS) - S/PDIF digital I/O (coaxial RCA connectors) with 2-channel PCM - SCMS copy protection control - Digital I/O supports surround-encoded AC-3 and DTS pass-through - Direct hardware input monitoring via separate balanced 1/4” TRS monitor outputs - Software routing of inputs and outputs - Digital I/O can be routed to/from external effects - 16-channel MIDI I/O - ASIO, WDM, GSIF 2 and Core Audio driver support for compatibility with most applications - 64-bit driver support for Windows - PCI 2.2 compatibility - Apple G5 compatible - Incompatible exceptions - Includes Ableton Live Lite music production software, so you can make music right away - Works with other Delta cards Technical Specifcations: - Compatibility - ASIO - WDM - GSIF 2 - Core Audio

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