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• Install both 64-bit and 32-bit JDK on a 64-bit windows?

  - by Toperi

  I need to use a java library that uses native code requiring a 32-bit jvm. I have 64-bit windows with 64-bit eclipse installed with 64-bit JDK7. In order to develop with it, do I need to have 32-bit JDK? Or would the JRE suffice? If it is possible to install both, what is the naming convention you use for the installation directory for the 32-bit jre or jdk? I have heard rumors there is a performance hit on virtual memory if both are installed, is this true?

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• Getting FC11 to run under VMware Server, converted from physical machine

  - by Kristian

  I have a FC11 installation that I have converted to a VMware disk image to run om my VMware Server. I converted it with qemu-img, as the VMware Converter software apparently only converts Linux hosts to VMware Infrastructure servers. The disk image boots fine (grub is loaded and boots the kernel) but it seems like the disk is not found by the kernel, and the boot process stalls. Hotplugging USB devices work (the kernel prints debug information) and I'm able to press keys (Ctrl-Alt-Delete for instance). The VMware guest OS is set to RedHat Enterprise Linux 5 (32 bit), and I have tried both the LSI Logic, LSI Logic SAS and VMware Accelerated SCSI SCSI controllers, to no avail. I'm able to boot an installer disk and get into rescue mode and mount the filesystem, so my question is, what do I need to do to the guest kernel / initrd image to make it recognize the virtual disk?

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• Cisco FC SAN switch decision

  - by Chopper3

  I've got to buy a bunch of FC SAN switches in the next week or so, I have to, and want to, buy Cisco MDSs. Servers are HP BL490c G6's in C7000 chassis with Virtual-Connect Flex-10 ethernet interconnects and VC FC interconnects (Emulex HBAs btw), all running ESX 3.5U4 (for now). I think I've only really got two choices; MDS 9509's with dual-supervisors with a single 48-port 4Gb FC card MDS 9222i's with single supervisor and the built-in 18-FC-port/4-GigE-FCIP-port option Both have the same functionality (I think, buying the enterprise licence btw), both have plenty enough performance and adequate ports for now and the next three years. The 9222i's are about 55% the price of the 9509's - logic says get the 'i's but will I really miss the dual-supervisors? I've got lots of 9509's with dual-supervisors that I'm very happy with but I'm not sure I've every benefitted from the dual-sups in the past and they are nearly twice the price - but if I don't buy them and miss them I can't retrofit them later. What are your thoughts?

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• does heartbeat v3 support same resource agent types of pacemaker?

  - by Emre He

  As we know, Pacemaker supports three types of Resource Agents, ? LSB Resource Agents, ? OCF Resource Agents, ? legacy Heartbeat Resource Agents http://www.linux-ha.org/wiki/Resource_Agents does heartbeat v3 support above 3 types resource agent? or it only support LSB and legacy heartbeat resource agents? because we have only virtual ip and one service need to switch in ha cluster, so we decide not involve pacemaker, so we come to this question, for example we cannot monitor the application service by heartbeat, heartbeat only can handle to start it on active node. thanks, Emre

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• Detecting Request that uses invalid Encoding using Modsecurity

  - by Ali Ahmad

  I am trying write a virtual patch using modsecurity for my hosted web application using following rule i.e. <Location /index.php> SecDefaultAction phase:2,t:none,log,deny # Validate parameter names SecRule ARGS_NAMES "!^(articleid)$" \ "msg:'Unknown parameter: %{MATCHED_VAR_NAME}'" # Expecting articleid only once SecRule &ARGS:articleid "!@eq 1" \ "msg:'Parameter articleid seen more than once'" # Validate parameter articleid SecRule ARGS:articleid "!^[0-9]{1,10}$" \ "msg:'Invalid parameter articleid'" </Location> The problem is how can i reject requests that use invalid encoding as a global WAF configuration so that this patch cannot be circumvented.

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• Big IP F5 outbound HTTP issues

  - by mbuk2k

  We've tried upgrading from 9.x to 10.2 on our F5 Big IP 3400 and everything went over fine apart from one thing. We're unable to establish any outbound HTTP (80) connections from any servers that are assigned to a virtual server. This is something that worked before and is required for certain calls our servers need to make. Interestingly HTTPS (443) connections work fine, it's literally just anything outbound over port 80 seems to fail. Does anyone know if anything has changed between 9.4 and 10.2 that would mean additional config would need to be made to allow for external HTTP connections? Any advice would be appreciated, thank you

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• Run a BitLocker protected Windows 7 installation on VirtualBox from physical drive

  - by djechelon

  I have a broken laptop with its hard drive intact. I'll be getting it repaired in a few days but I must continue my work possibly uninterrupted, so I chose to run the OS in another working laptop (I can't just transfer documents). My question is really simple: Can I create a virtual machine in VirtualBox (under Linux) that uses the physical hard drive mentioned above which is encrypted with BitLocker? I have the restore key at hand, of course. I wouldn't like to mount the hard disk as primary hard disk for laptop (and run 7 as primary OS), but that could be the final choice if virtualizing is not an option. Thank you.

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• VirtualBox / Ubuntu 10.04 Server

  - by SevenCentral

  I created a virtual machine using VirtualBox 3.2 and Ubuntu Server 10.04 x64. Everything works fine. I logged in. I mounted the VBoxGuestAdditions.iso file. However, I can't for the life of me find where in the operating system this was done so I can get the additions installed. I've tried /media, /cdrom, /mnt, etc... I'm obviously new at this. Can someone help figure out how to install the guest additions and how to locate the mounted file? Thanks.

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• Apache2 conditional section based on port

  - by Waleed Hamra

  I don't know much about if statements in apache configuration, and I'm wondering if I can have a section of the configuration applied only if the request is received on a certain port. In short, this is about SSL. I have name based virtual hosts, I can make a configuration for port 80, then duplicate it all for port 443, and add the relevant SSL configurations. But this seems redundant. I was wondering if i can have something like: <VirtualHost *:80 *:443> and then I can put: <IfModule mod_ssl.c> SSLEngine on SSLCertificateFile ... SSLCertificateKeyFile ... SSLCACertificateFile ... </IfModule> inside an if statement that checks if connection is on port 443... or is such thing impossible? the server supports SNI, and I don't have any worries from non-SNI compliant browsers.

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• Loggon to Internet Hotspot from within Linux Terminal

  - by Saif Bechan

  For internet I use a local Hotspot service. I have internet when I start my browser and fill in my username and password. This stays as long as I do not shut down my PC for a while. I run some virtual machines, centos, debian, from the command line. I run these just for small test purposes, nothing special, and security is not an issue for me at all. I want to have these VM's connect directly to the hotspot if this is possible. So they each have there own IP. I have enough hotspot accounts to do so. I can do this with a bridged connection in VMware which works find with a GUI. But I run these OS's from the command line. I only need to know a way how to get the hotspot to validate my credentials. Is there a way of doing this without having a gui.

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• Back / Forward mouse buttons do not work in VMWare Workstation 6.5 Guest OS

  - by Tim Lara

  I am using a Logitech G9 mouse and running VMWare Workstation 6.5.3 on Vista x64. The guest OS is Win XP, and has the most current version of VMWare Tools installed. Left / right buttons and mouse wheel scrolling work fine in the guest OS, but the back / forward buttons are apparently not recognized. I have tried installing the Logitech software inside the guest OS as well, but it still did not recognize the back / forward buttons. (I didn't really expect this to work since the guest OS doesn't actually see the mouse hardware as a Logitech G9 directly anyway.) I vaguely remember seeing something a while back about editing the virtual machine config file to specify a 5-button mouse rather than the default 3-button setup, but I can't seem to find any specifics on how to do so in the VMWare documentation. Does anyone know if such a workaround exists, or is 5-button mouse functionality just not supported?

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• startx doesnt run gives an error xauth unable to link authority files

  - by Sandeep

  I have installed windows xp on VPC and have installed cygwin-x on that virtual machine. When i run startx command. I get the following error: xauth: creating new authority file /home/Administrator/.serverauth.1480 xauth: unable to link authority file /home/Administrator/.serverauth.1480, use /home/Administrator/.serverauth.1480-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n giving up. xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): Server error. xauth: creating new authority file /home/Administrator/.Xauthority

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• startx doesnt run gives an error xauth unable to link authority files

  - by Sandeep

  I have installed windows xp on VPC and have installed cygwin-x on that virtual machine. When i run startx command. I get the following error: xauth: creating new authority file /home/Administrator/.serverauth.1480 xauth: unable to link authority file /home/Administrator/.serverauth.1480, use /home/Administrator/.serverauth.1480-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n xauth: creating new authority file /home/Administrator/.Xauthority xauth: creating new authority file /home/Administrator/.Xauthority xauth: unable to link authority file /home/Administrator/.Xauthority, use /home /Administrator/.Xauthority-n giving up. xinit: No such file or directory (errno 2): unable to connect to X server xinit: No such process (errno 3): Server error. xauth: creating new authority file /home/Administrator/.Xauthority

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• Getting "-bash: fork: Resource temporarily unavailable" in OSX

  - by Joseph Tura

  I seem to run into problems with the max. number of processes every so often. Anyone know what is best practice for fixing this? Running OSX 10.6 on a MacBook Pro i7. ulimit -a returns these values: core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 256 pipe size (512 bytes, -p) 1 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 266 virtual memory (kbytes, -v) unlimited When the error occurred I checked, and there were 102 running tasks and 523 threads.

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• Is Hyper-V Server 2008 working on Intel's Atom platform

  - by Josip Medved

  Did anybody try to install Hyper-V on Intel Atom platform? Hyper-V requires: x64 compatible processor with Intel VT or AMD-V technology enabled Hardware Data Execution Prevention (DEP) It seems that both requirements are satisfied with Atom as processor. However, I wonder whether there is some blocking issue (e.g. BIOS that does not support it) since all Atom motherboards I checked had quite old north/south-bridge. My intentions are to run two low-requirements virtual machines (embedded Linux), so performance should not be an issue.

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• Manual Duplex for Mac (and/or Linux)

  - by chris_l

  Hi, my printers don't support automatic duplex printing. I'm looking for a solution for my Mac (BTW, also for Linux) that I've seen with most Windows printer drivers: Check "Manual duplex" in the printer screen Printer starts printing one side A dialog appears, asking me to flip the pages Printer prints the other side. One thing I can do, is "print odd pages", then reopen the dialog and "print even pages", but this is very inconvenient, especially when I only want to print a certain page range of the document (the Mac dialog forgets my previous page range every time). It gets even more inconvenient, when printing 2-up double sided, or when changing additional settings for this one printout. So is there maybe some tool, that can do this? Or maybe a "virtual printer driver" that can sit somewhere between the dialog and the actual printer driver, which manages these steps? (The Windows tool http://en.wikipedia.org/wiki/FinePrint can do something like that, but I don't need all of its features - and I need it on Mac/Linux) Thanks, Chris

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• Type Chinese with French keyboard

  - by SoftTimur

  I use a Mac with French keyboard, and I have installed a Windows 7 as virtual machine. Now I would like to type Chinese in this Windows 7. The normal input method for Chinese within Windows 7 allows me to input Chinese, but does not work perfectly, because it does not recognize I am using a French keyboard - it presumes I am using a English keybord... So for some keys, what I type on the keybord is not what the input method gives on the screen... Could anyone help on this?

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• What type of VPS stats should I look for?

  - by Dave

  I have a few websites that average a total of 10,000 uniques a day across my network. I also have a few mobile apps that pull xml data maybe 5,000 calls a day. My sites aren't anything major just a few wallpaper websites and few other small sites, nothing real database intensive. I currently own a dedicated server and I feel like it's overkill for my network. I'm looking into getting a Virtual Private Server (VPS). I was just wondering what kind of stats I should be looking for to support my network of sites. Thanks

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• No option for keeping installed programs when upgrading Windows 7 to Windows 8

  - by Nison Maël

  (Related : How can I upgrade from Windows 7 to Windows 8 and keep my files and applications? ) I'm trying to upgrade my Windows 7 Pro (msdnaa) to Windows 8 Pro (msdnaa). The Windows 8 is the final version (I don't have access to previews on msdnaa anymore). As you can see on the related question accepted answer, Windows 8 should give an option to keep installed programs. But it does not. The only available options are "Keep only personal datas" and "Nothing". Any idea ? I'm running with SP1. I've got two partitions (one of them only contains data of a virtual machine). The two operating systems have the same architecture (64 bits). Screenshot:

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• How to access my local host server from internet

  - by rahul.p.33

  How to access my local host server from internet have installed WAMP server on my Windows XP, And i had created a index.php file in my root folder, and i assigned a virtual name to my localhost. eg: earlier i accessed my index.php via: Code: http:// localhost/ index.php but now i can access like : Code: http: //www. mysite. com/index.php but the problem is that i can access this from my computer only.. how can i use it from internet.. please help me.... Thanks.

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• How to access my local host server from internet

  - by rahul.p.33

  How to access my local host server from internet have installed WAMP server on my Windows XP, And i had created a index.php file in my root folder, and i assigned a virtual name to my localhost. eg: earlier i accessed my index.php via: Code: http:// localhost/ index.php but now i can access like : Code: http: //www. mysite. com/index.php but the problem is that i can access this from my computer only.. how can i use it from internet.. please help me.... Thanks.

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• Compiling the Linux kernel, how much size is needed?

  - by ant2009

  I have downloaded the newest most stable Linux kernel, 2.6.33.2. I thought I would test this using VirtualBox. So I create a dynamically sized harddisk of 4 GB. And installed CentOS 5.3 with just the minimum packages. I setup the make menuconfig with just the default settings. After that I ran make and got the following error: net/bluetooth/hci_sysfs.o: final close failed: No space left on device make[2]: *** [net/bluetooth/hci_sysfs.o] Error 1 make[1]: *** [net/bluetooth] Error 2 make: *** [net] Error 2 The amount of space I have left is: # df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup00-LogVol00 3.3G 3.3G 0 100% / /dev/hda1 99M 12M 82M 13% /boot tmpfs 125M 0 125M 0% /dev/shm My virtual size is 4 GB, but the actual size is 3.5 GB. $ ls -hl total 7.5G -rw-------. 1 root root 3.5G 2010-04-13 14:08 LFS.vdi How much size should I give when compiling and installing a Linux kernel? Are there any guidelines to follow when doing this? This is my first time, so just experimenting with this.

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• Why does the CentOS 5.8 install give an error about CD-ROM drive when using HP ILO?

  - by Mike B

  CentOS 5.8 I'm trying to install CentOS 5.8 on a box. I'm connecting the ISO to the server via a virtual disk using HP ILO. It initially seems to boot fine but in the middle of the anaconda text-mode package installation, it gives the following error: CD Not Found CentOS CD was not found in any of your CDROM drives. Please insert the CentOS CD and press OK to retry. If I click OK, it gives me the same error. I don't understand how it could get this far and then complain about the CD-ROM drive. Any thoughts?

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• Unable to create context rendering error when run OpenGL application

  - by Rodnower

  Hello, I try to run Mesa gears example and I get following error: freeglut (./gears): Unable to create direct context rendering for window 'Gears' This may hurt performance. though the application runs successfully, but I guess that in future I will have much problems with productivity. I run Linux CentOS 5 on WMvare 7. Mesa's version is 6.5 Relevant output of lspci -v gives: 00:0f.0 VGA compatible controller: VMware SVGA II Adapter (prog-if 00 [VGA controller]) Subsystem: VMware SVGA II Adapter Flags: bus master, medium devsel, latency 64, IRQ 9 I/O ports at 10d0 [size=16] Memory at d0000000 (32-bit, non-prefetchable) [size=128M] Memory at d8000000 (32-bit, non-prefetchable) [size=8M] [virtual] Expansion ROM at 30000000 [disabled] [size=32K] Capabilities: [40] Vendor Specific Information Any one have idea? There is driver of vmvare for CentOS? Thank you for ahead.

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• Guacamole on KVM

  - by Siem Hermans

  I currently run a deployment where I provide virtual machines to circa 25 users through ESXi over the VMWare WSX web portal. This works, no doubt about it, it is fast, stable and reliable enough for the end users. However I stumbled across the Guacamole project (Link: http://guac-dev.org/) and the KVM project (Link: http://www.linux-kvm.org/). I must say I am no genius when it comes to Linux but I am interested in replacing the ESXi and WSX combination with a Guacamole and KVM deployment. I have seen people across the internet use ESXi in combination with Guacamole (mostly prior to the release of WSX), but I have yet to see someone use it in conjunction with KVM. Considering my amount of knowledge on Linux in general I would like to ask: Is it possible at all to combine the two?

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