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• KVM switching on the cheap

  - by Stuart Hemming

  I have a machine at home for my personal use. I also have a machine for work. I have a pair of DVI monitors. An ideal set up for a KVM switch. Sadly the cheapest switch I can find that will switch 2 DVI monitors is nearly £300. However, I can get, for just £40, a switch for a single monitor. Is there any reason why I couldn't employ 2 of these much cheaper switches? My thought was to have the keyboard, mouse and one of the monitors in one switch and just the 2nd monitor in the 2nd switch. Logically, I can't think of a reason why this wouldn't work, but I have no real background to be able to say, definatively, whether or not it would. It it makes any difference, both machines are running Win7. Appreciate any thoughts. -- Stuart

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• How to customize Windows 7 HAL library during installation (BSOD STOP: 0x000000A5)?

  - by koldovsky

  While trying to install Windows 7 x86 Ultimate on Samsung M40 laptop (Pentium M 1.7 Dothan, 2 GB RAM/ 100 GB HDD) i receive BSOD STOP: 0x000000A5: The bios in this system is not fully ACPI compliant. Please contact your system vendor for an updated bios. The bios on the system is updated to latest version. If ACPI is the real source of the issue it means that I possibly could use another HAL library. In Windows XP it is possible to install system with generic HAL library pressing F7 when installer asks to supply drivers, but on Windows 7 I can't find such option. Ironically, Vista installs and works nice, even if they said that Windows 7 is less demanding for hardware. Windows 7 Advisor also tells nothing suspicious. Can anybody tell me how to customize Windows 7 installer to use generic HAL library (if it is possible, of course) or point me to another solution?

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• Trouble subnetting...

  - by ???

  I have to learn how to subnet by hand for a test. And I'm having real problems doing it. I keep getting stuck. Here's an example: 138.248.184.17/18 - IP 255.255.192.0 - Subnet Mask 192 = 1100 0000 in binary And I know 184 in the IP address is the "octet of interest". OK I get that far...and then I'm lost. I know I need to set the network bits of 192(I think?) to all 0 for the network ID and then to all 1 for the broadcast ID. Problem is how do I know which part of 11000000 is network and which part is host?

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• PDF printer which correctly embeds EPS into PDF

  - by Alexey Popkov

  I need to convert to PDF a Word document containing embedded vector EPS images (by printing to PDF printer - I use Word 2003). Several years ago I tested some of commercial and free PDF printers and found none, with except to Acrobat Distiller, which embeds in the generated PDF file real PostScript content of the EPS image instead of the preview showed by Word. Has the situation changed from that time? Do you know any free or commercial PDF printer which handles embedded EPS correctly? UPDATE Good thread about EPS handling in different versions of Word: http://forums.adobe.com/thread/439881

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• Setting up mutt for gmail

  - by highBandWidth

  I am trying to set up mutt for gmail. I am following instructions at http://crunchbanglinux.org/wiki/howto/howto_setup_mutt_with_gmail_imap, however, after putting set from = "[email protected]" set realname = "Your Real Name" set imap_user = "[email protected]" set imap_pass = "yourpassword" (with my details, of course), I get $ mutt Error in $HOME/.muttrc, line 12: imap_user: unknown variable Error in $HOME/.muttrc, line 13: imap_pass: unknown variable source: errors in $HOME/.muttrc Press any key to continue... If I try to send an email, it doesn't work because instead of IMAP, it tries to send email directly from my localhost's mail system. Mutt says it is version Mutt 1.4.2.3i.

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• ARM laptop available?

  - by Ken

  Hearing all the fuss about some new consumer product that uses an ARM Cortex A8, I'm interested to get in on some of the action. But I want a real programmable computer running something like Linux. I've seen many, many reports in the past 2 or 3 years about prototype ARM laptops with great battery life. Unfortunately, when I tried googling today, all I can find are the old videos and press releases about the prototypes, not a shipping product. Is there an actual ARM laptop available today? Or did everybody give up and just use Intel Atom chips?

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• how do I configure IIS to post logs to sql server?

  - by stacker

  how do I configure IIS to post logs to sql server? How want to save ANY log to my site. the site has a lot of views and the data can be big in a very small time. In addition, I want to show analytics of the use, in real time, and for all the time. Is it make sense to save all the logs in sql-server? What is the pros and cons taking this approach have? what other solution can I have?

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• Anyone know where I can download a copy of Sun Java System Active Server Pages 4.0.3 for Solaris

  - by ewengcameron

  I've contacted Sun regarding this and they have told me that the download is no longer available as Active Server Pages 4.0.3 is now End Of Life. We need to upgrade our server to 4.0.3 to acheive PCI-DSS compliance. Anyone know of a site where I can download older copies of Sun files? Sun offer 4.0.1 and 4.0.2 to download but not 4.0.3 which is going to cause problems come October when Visa stops accepting transactions from non PCI compliant servers. If Sun kept their naming system consistent across versions, the file would be called "sjsasp403-sol-sparc.tar". I know the real solution is to upgrade every site on the server to use a different server language, i.e. PHP, and in the long term, this is our goal but we have over 100 sites requiring upgrading and its not a viable solution to get this done before October.

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• Reinstall ruby (or just yaml lib)

  - by Christian Sciberras

  I've installed ruby 1.9 from source, and tried installing gem 'bundler': < gem install bundler > /usr/local/lib/ruby/1.9.1/yaml.rb:56:in `<top (required)>': > It seems your ruby installation is missing psych (for YAML output). > To eliminate this warning, please install libyaml and reinstall your ruby. > .... I've not been able to cleanly uninstall ruby (wtf?!), and installing libyaml at this point didn't help either. So it seems I've ended up with a fk-ed up server since I can't rollback nor fix the issue. Of course, I do have backups, but this situation is ridiculous nonetheless. Surely there must be a real fix?

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• Problems during binding SpotLight to the instance

  - by Rodnower

  Hello, I have RAC Oracle11 installation built from 2 nodes running on Linux Red Hat OS. Now, I try to make connection from SpotLight running on Windows 7 to the Instance of one of nodes (TNS name of it is: LIBD1) This what I do: Make new connection - give user with SYS permission - connect - get error about that, that user not configured - User Configuration Wizard opens - give SYS as user with sysdba permissions (real SYS not other user with SYS permission) - check "configure new user" option - give new user name - next And I get error: DBMS_SQL access.denied. What I do wrong? Thank you for ahead.

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• XKB - remap arrow keys and preserve shift behaviour to select text

  - by dgirardi

  I realize arrow key remapping is an old problem, however I cannot seem to find a good solution that lets me select text with SHIFT + remapped keys as I would do with the vanilla arrow keys. For instance, if I remap Caps Lock to ISO_Level3_Shift and set xkb_symbols to read either key <AC08> { [ k, K , Down, Down] }; or key <AC08> { type="THREE_LEVEL", [ k, K , Down ] }; Pressing Shift+CapsLock+K will behave exactly as CapsLock+K (while Shift+Down behaves differently from Down alone). I had somewhat more success using higher level macro utilities and generating keyboard events (i.e. generate both the shift and the arrow keypresses); hoever that approach has a whole set of different problems - often the UI response to a simulated keypress is different from the "real" keypress, and there are performance problems as well - I can type faster than the thing can handle. Tl;dr; how can you shift-select using remapped arrow keys under X?

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• Portable trackball mouse, any recommendations?

  - by joshcomley

  Hi, I know there are other "mouse recommendation" questions, but I'm after some specific advise: Are there any useful and portable trackball mice? I'm particularly interested to hear if the recommendation has been used by the recommender! I have some space for a mouse on my travels, which are mainly on a train. A trackball mouse is the only real viable option as I don't really have room to "move around" a lot. I'm aware of the Genius Traveller 350: And some more crazy inventions: Anybody actually used any of these? Or anyone know of anything a little better? I have the Logitech Trackman, but the receiver makes it wholly unportable (and it's quite big anyway): Any thoughts?

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• How to re-do the hard disks in a WD Word Book Edition II ?

  - by jfmessier

  I recently purchased a WD World Book II, a 2 TB one. I call it the "White Box". It has those 2 1TB drives, and they were in this RAID 1 config, only giving me about 1 TB. I could not delete the raid array, and I took the drives in a Linux box. But I also deleted the entire partitions of the disks, and I cannot even et the existing RAID array on this WD White Box. The drives are fine, but I cannot get them to work on the WD White Box. My goal was to get back to a real 2 TB storage space. If I cannot get those drives back in the White Box, I can re-use them elsewhere, but this would mean a waste of the firmware and network connection. After the fact, I read that, anyway, the network performance is rather poor. Thanks :-)

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• Why does DNS work the way it does?

  - by sabof

  This is a Canonical Question about DNS (Domain Name Service). If my understanding of the DNS system is correct, the .com registry holds a table that maps domains (www.example.com) to DNS servers. What is the advantage? Why not map directly to an IP address? If the only record that needs to change when I am configuring a DNS server to point to a different IP address, is located at the DNS server, why isn't the process instant? If the only reason for the delay are DNS caches, is it possible to bypass them, so I can see what is happening in real time?

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• Monitoring remote laptops

  - by kaerast

  We're looking for something to monitor around 30 remote laptops that are constantly out on the road, never returning to base except for when there are serious hardware faults that need repairing. These laptops won't always be connected to the internet, they'll have mobile broadband and may work offline most of the time. They will be running a mixture of Windows XP, Vista and 7 and there is currently no server setup. We're primarily interested in making sure that Windows Updates and antivirus updates are happening, and I guess we should also be monitoring remaining disk space, what software is installed and ideally hardware health. It might also be nice if we could gain remote access to perform work on them. My main reason for wanting to monitor them is that it's going to be a real pain to get them back to base if anything goes wrong, so I want to be proactive in ensuring they last as long as possible. Can you recommend what I should be monitoring to ensure a long life? What tools would you use to monitor and maintain these computers?

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• Difference between VMWare tools?

  - by tore-

  I'm currently writing a module for puppet which installs VMWare tools to virtual nodes. I want to do this via yum and and yum-repo. VMWare have their own repo (http://packages.vmware.com/tools/esx/3.5latest/rhel5/x86_64/index.html) which I thought I could use, rather than creating my own. But then I noticed that their repo files is alot different than the rpm file used when installing VMWare Tools on the node, via the "Install/upgrade VMWare Tools" in vSphere. Does anyone know what the real difference is? Does anyone have any preferences?

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• CentOS: safe to yum reinstall after removing 32-bit packages?

  - by virtualeyes

  as per the CentOS FAQ on removing 32-bit packages present in a 64-bit install, is it safe to perform the last step: You may also want to do this: yum reinstall \* The reason is that sometimes the /usr/share/ items (shared between BOTH packages) get removed when removing the 32-bit RPM packages. on an existing installation? (i.e. where data & settings of possibly affected applications need to be preserved) rpm -Va shows a number of entries like: /sbin/ethtool: at least one of file's dependencies has changed since prelinking S.?..... /sbin/ethtool /usr/libexec/mysqld: at least one of file's dependencies has changed since prelinking S.?..... /usr/libexec/mysqld along with /usr/share entries with T flag (apparently filetime diff, seems safe) The machine is up & running fine, but may not be whenever a reboot occurs. Clue-in as to the real state of the machine (hosed or OK) appreciated Thanks

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• How to hide a partition?

  - by snark

  I bought a small 32 GB SSD to store the operating system (Windows 7) and my applications. I'll copy the existing boot partition (30 GB) from my harddisk (WD Velociraptor) to the SSD using GParted but I'd like to keep the existing partition intact (keeping all data on it) so I can go back to it if there is a problem with the SSD. How can I hide the partition so it is not visible anymore to Windows? What should I change with GParted? Second question: how can I keep the harddisk partition synced with the SSD so I have a backup? I'm looking for a near real-time solution (not something like Acronis Drive Image).

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• Migrate reports from MS Access to OOo Base

  - by John Gardeniers

  I'm currently looking at upgrading our office machines from Office XP to Office 2010. For most users the standard edition is fine but just a few of us use Access. There are only a couple of standalone Access databases but the program is used fairly extensively (mostly by myself) as a front end to MySQL. As the cost different between standard and pro versions of Office 2010 is about $170 (AUD) I'm looking at possible alternatives to Access. I'm no huge fan of Open Office but could be convinced to use it if I can find a way to migrate the many reports we currently have in Access. The data is not a problem. So far I've found nothing to suggest this is even possible/practical but perhaps someone here knows otherwise. I'm also open to suggestions for other alternatives to Access but it must be able to produce flexible reports easily. That is the one real strength of Access in my view. Because of its subjective nature I'm making this community wiki.

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• Original sender is not correctly identified when spam is forwarded

  - by Stephan Burlot

  I have a forwarding rule with Postfix that forwards all messages to my main email address. When a spam message is sent to one of my emails, it is forwarded but the sender is shown as being the forwarding domain, not the spammer's domain. Real example: mywebsite.com is hosted on Linode. [email protected] sends an email to [email protected] the mail is forwarded to [email protected] my email hosting (anotherwebsite.com) sees it's spam and sends a message to [email protected] and Linode reports a TOS violation. I have modified my postfix settings so I now use RBL, but if a message goes through, it may happen again. How can I prevent this to happen again? Is there some settings to change on Postfix so the original sender is correctly identified? Thanks Stephan

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• How to create dynamic Scatter Plot/Matrix with labels and categories on both axis in Excel 2010?

  - by user1581900

  Let us consider a following data set: Name | Age | Hair Color ----------------------------- John | Young | Brown Sophie | Old | Blond Adam | Mature| Blond Mark | Teen | Dark Jeremy | Old | Grey Alex | Young | Brown etc... Both Age and Hair Color, can take only defined values(Young/teen/mature/old and Blond/brown/Dark/Grey). Name is the only real variable here. I want to create a Scatter Plot / Matrix that will look something like that: I know that I schould use this tool to add labels to the scatter plot. I also found this youtube video that explains how to display categories on Y-axis Moreover I need the chart to be dynamic as explained in another youtube video. How do I combine all these approaches to get a Scatter Plot with categories as values on both axis?

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• Unable to delete a directory from NTFS drive: "Access is deined"

  - by Evgeny

  I'm running Windows XP Pro x64 SP2. I have a directory on an NTFS drive that was created by a Maven build. A subsequent build attempted to delete this directory and failed. I now get the error "Access is denied" whenever I try to do anything with that directory: change to it, delete it, rename it. This happens both in Windows Explorer and from a command prompt. The properties dialog in Windows Explorer doesn't even contain the Security tab. I created the directory, so I don't think this is truly a permissions issue. I've occasionally had this error happen in the past is well. I believe the error is misleading, but the question is: what is the real problem and how do I fix it?

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• Virtual Desktop Provisioning - Vmware View 5.2 Maintenance Questions

  - by Lee J. DeAngelis

  Currently running an environment of about 400 VMware View 5.2 virtual Desktops. The environment runs pretty efficiently but we sometimes run into problems with certain pools from time to time. Just recently we had a pool that was causing high write latency when users logged in. It just happened all of a sudden and had been working fine for weeks. On a hunch we completely broke down the pool and re-provisioned it from a new image. This corrected the problem. In fact every real issue we've had so far was fixed by a recompose or complete break down and re-provisioning of one pool or another.Our environment consists of Cisco UCS and Netapp 3240s using flashcache running VMware View 5.2. My questions are: What are some maintenance best practices other VDI admins are using? How often are you recomposing? rebalancing? re-provisioning? How long should you keep base image snapshots around?

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• Is there any software or hardware which lets you stop, slow down, speed up or even reverse time?

  - by tjrobinson

  Obviously I'm talking about time in terms of the PC clock rather than real time. We were testing an application we've developed at work by setting the clock forward and back to simulate different scenarios and I started thinking how useful it would be if you could adjust the rate(?) of the system clock with finer control. So you could make a minute pass in a second or a day pass in 30 seconds and watch how the program you're developing copes with changes in date and time. I'd be interested to hear if anyone knows of any software or hardware which can let you do some or all of the above.

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• Intel cpu hyperthreading on or off for ibm db2?

  - by rtorti19

  Has anyone ever done any database performance comparisons with hyper-threading enabled vs disabled? We are running ibm db2 and I'm curious if anyone has an recommendations for enabling hyper-threading or not. With hyper-threading enabled it makes it quite difficult to do capacity planning for cpu usage. For example. "With 8 physical cores represented as 16 "threads" on the OS and a cpu-bound workload, does that mean when your cpu usage hit's 50% you are actually running at 100%." What real benefits do I gain with leaving hyper-threading enabled on an intel server running DB2? Does hyper-threading help if you're workload is truly disk IO bound? If so, up to what percentage? These are the types of questions I'm trying to answer. Any thoughts?

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