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  • Singleton class in DLL used on multiple virtual directories

    - by Drejc
    I have the following situation: multiple virtual directories under same application pool in IIS copy of same DLL in all those directories (same version number) a singleton class in one in this DLL The question is, is this singleton class created only once for all those Virtual Directory instances or is there for each of there one singleton class. The code looks something like this: [ Transaction(TransactionOption.Supported), ClassInterface(ClassInterfaceType.AutoDispatch), Guid("7DE45C4D-19BE-4AA4-A2DA-F4D86E6502A8") ] public class SomeClass { private static readonly Singleton singleton = new Singleton();

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  • Load balance between two virtual directories on a single machine running IIS6

    - by Emil Lerch
    I'm trying to simulate a production environment using a single VM. The production environment will have 3 servers behind a load balancer with sticky sessions. Production will be using IIS6. For development, I have no need to distribute load, but I want to make sure the team does not write code that relies on a single-server module. I have been hoping to set up two virtual directories and find some isapi filter to perform some rudimentary software load balancing, but I've been unable to locate anything suitable. isapi_rewrite comes close but there's no ability for a random rewrite. I don't even need sticky sessions since the application does not (in theory) rely on them. Is there something easy/free to do this, or am I stuck with multiple VMs and a NLB setup (which seems like total overkill)?

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  • Virtual DNS recommended setup...

    - by luison
    Hi. We are new to virtualization which we are setting up with Proxmox VE (OpenVZ + KVM). I am a bit lost about the recommended DNS forwarder config specially in the OpenVZ (Virtuosso type) of enviroiment. Our intention was to have a small dnsmasq running in one of the VM acting as backup DHCP server and serving our in-office local addresses (and PCs) by an additional resolve.conf file which dnsmasq supports, but I've read that all VM should share DNS pointing to the host machine in which case it would make more sense having it there. My problem is that I would like to have as least as possible apps in the host so a reinstall of the environment (porxmox ve) and a machine restore can be as quick as possible. Does anyone have a similar setup? Does it make sense to have the 1st virtual machine running the local dns forwarder? Also... dnsmasq seems to want to have root permissions when running on an OpenVZ container... are there any work arrounds anyone knows for that.

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  • "Catch-All" access log with Apache Virtual Hosts?

    - by pix0r
    I have many virtual hosts set up on a web server, each one having its own error and access log. The relevant lines of httpd.conf are something like this: ErrorLog /var/log/httpd-error.log LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined CustomLog /var/log/httpd-access.log combined NameVirtualHost *:80 <VirtualHost *:80> ServerName myhost.com ServerAlias www.myhost.com DocumentRoot /var/www/myhost.com/htdocs ErrorLog /var/www/myhost.com/log/error.log CustomLog /var/www/myhost.com/log/access.log combined </VirtualHost> # ... many more VirtualHosts Currently, I'm getting some random errors in /var/log/httpd-error.log, but I'm getting nothing in /var/log/httpd-access.log. Is it possible to have ALL accesses and errors duplicated to a shared logfile? Is it possible to do this without adding new entries to every single VirtualHost?

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  • Cannot connect to a 2008 sql server named instance hosted in a azure virtual machine

    - by emardini
    When I try to connect to a named instance in a SQL SERVER hosted in a azure VM I get this message: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1) The problem is the sql browser is not working properly, when I start the sql browser service it closes after a few seconds and the event log says "There are no instances of SQL Server or SQL Server Analysis Services." But I do have a named instance, I can connect locally to this instance. I've re-installed sql browser and the instance but ii does not work. The host is a azure virtual machine windows server 2008 datacenter. Please help. Thank you

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  • Default virtual server does not work

    - by Luc
    Hello, I have 4 Name Virtual Hosts on my apache configuration, each one using proxy_http to forward request to the correct server. They work fine. <VirtualHost *:80> ServerName application_name.domain.tld ProxyRequests Off ProxyPreserveHost On ProxyPass / http://server_ip/ ProxyPassReverse / http://server_ip/ </VirtualHost> I then tried to add a default NameVirtualHost to take care of the requests for which the server name does not match one of the four others. Otherwise a request like some_weird_styff.domain.tld would be forwarded to one of the 4 VH. I then added this one: <VirtualHost *:80> ServerAlias "*" DocumentRoot /var/www/ </VirtualHost> At the beginning it seemed to work fine, but at some point it appears that the requests that should be handed by one of the 4 regular hosts is "eaten" by the default one !!! If I a2dissite this default host, everything is back to normal... I do not really understand this. If you have any clue... thanks a lot, Luc

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  • Hardware acceleration issue with WPF application - Analyzing crash dumps

    - by Appu
    I have a WPF application crashing on the client machine. My initial analysis shows that this is because of H/W acceleration and disabling H/W acceleration at a registry level solves the issue. Now I have to make sure that this is caused because of H/W acceleration. I have the crash dumps available which has a stack trace, 9c52b020 80636ac7 9c52b0bc e1174818 9c52b0c0 nt!_SEH_prolog+0x1a 9c52b038 806379d6 e10378a4 9c52b0bc e1174818 nt!CmpQuerySecurityDescriptorInfo+0x23 9c52b084 805bfe5b e714b160 00000001 9c52b0bc nt!CmpSecurityMethod+0xce 9c52b0c4 805c01c8 e714b160 9c52b0f0 e714b15c nt!ObpGetObjectSecurity+0x99 9c52b0f4 8062f28f e714b160 8617f008 00000001 nt!ObCheckObjectAccess+0x2c 9c52b140 8062ff30 e1038008 0066a710 cde2b714 nt!CmpDoOpen+0x2d5 9c52b340 805bf488 0066a710 0066a710 8617f008 nt!CmpParseKey+0x5a6 9c52b3b8 805bba14 00000000 9c52b3f8 00000240 nt!ObpLookupObjectName+0x53c 9c52b40c 80625696 00000000 8acad448 00000000 nt!ObOpenObjectByName+0xea 9c52b508 8054167c 9c52b828 82000000 9c52b5ac nt!NtOpenKey+0x1c8 9c52b508 80500699 9c52b828 82000000 9c52b5ac nt!KiFastCallEntry+0xfc 9c52b58c 805e701e 9c52b828 82000000 9c52b5ac nt!ZwOpenKey+0x11 9c52b7fc 805e712a 00000002 805e70a0 00000000 nt!RtlpGetRegistryHandleAndPath+0x27a 9c52b844 805e73e3 9c52b864 00000014 9c52bbb8 nt!RtlpQueryRegistryGetBlockPolicy+0x2e 9c52b86c 805e79eb 00000003 e8af79dc 00000014 nt!RtlpQueryRegistryDirect+0x4b 9c52b8bc 805e7f10 e8af79dc 00000003 9c52b948 nt!RtlpCallQueryRegistryRoutine+0x369 9c52bb58 b8f5bca4 00000005 e6024b30 9c52bbb8 nt!RtlQueryRegistryValues+0x482 WARNING: Stack unwind information not available. Following frames may be wrong. 9c52bc00 b8f20a5b 00000005 85f4204c 85f4214c igxpmp32+0x44ca4 9c52c280 b8f1cc7b 890bd358 9c52c2b0 00000000 igxpmp32+0x9a5b 9c52c294 b8f11729 890bd358 9c52c2b0 00000a0c igxpmp32+0x5c7b 9c52c358 804ef19f 890bd040 86d2dad0 0000080c VIDEOPRT!pVideoPortDispatch+0xabf 9c52c368 bf85e8c2 9c52c610 bef6ce84 00000014 nt!IopfCallDriver+0x31 9c52c398 bf85e93c 890bd040 00232150 9c52c3f8 win32k!GreDeviceIoControl+0x93 9c52c3bc bebafc7b 890bd040 00232150 9c52c3f8 win32k!EngDeviceIoControl+0x1f 9c52d624 bebf3fa9 890bd040 bef2a28c bef2a284 igxpdx32+0x8c7b 9c52d6a0 8054167c 9c52da28 b915d000 9c52d744 igxpdx32+0x4cfa9 9c52d6a0 00000000 9c52da28 b915d000 9c52d744 nt!KiFastCallEntry+0xfc How do I ensure that crash is caused by H/W acceleration issue by looking at the above data? I am guessing VIDEOPRT!pVideoPortDispatch+0xabf indicates some error with the rendering. Is that correct? I am using WinDebug to view the crash dump.

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  • access virtual host(name based) in android

    - by ricky
    hii i have set up virtual host in apache and and added relevent information in windows host file. it works fine for desktop browsers but i am not able to access this from android simulator's browser. as a example a i created a virtual host "testweb" i added this information in widows hosts file also so in desktop browser it works fine with the url http://testweb/ but in android simulator browser it displays error tht page has been moved .... so plz give me solution what i shud do to work it and where i am getting wrong...plz help me

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  • Exchange 2013 Virtual Machine: Backup just mailboxes and clear logs

    - by Ben Curtis
    I have a Windows Server 2012 machine running Exchange 2013 running as a KVM virtual machine. For my VM guests, I do full image based backups from the host, so that I can quickly restore to any host server simply by copying over the disk image files. This means I don't need a nightly full system backup. That being said, without running a VSS Full Backup, the Exchange logs get massive (Specifically, the performance logs which are 500MB a day). In addition, I would also like to have a nightly backup of just the mail database. What is the best way to accomplish this? A full backup of the C:\Program Files\Microsoft\Exchange Server\V15 folder as I found in one tutorial did not clear out the logs. Thanks, Ben

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  • Create Virtual Image of Laptop before Formatting

    - by Simon Mark Smith
    I have a 3 year old laptop running Windows XP that I used for business. Although I have not used the laptop in over a year, I now want to re-commission it with Windows 7 and a fresh install. Before I do the fresh install I want to create a Virtual Image of the laptop that I can keep and potentially run on my desktop machine should I ever need to access any of the old files/projects that it contains currently. I know that most people will say just copy the files over to your desktop, but my concern is the configuration of the laptop. I used to use it for development and it has older versions of Visual Studio, SQL Server, Active X controls etc, etc than I currently use so I really want to preserve the environment not just the files. So really I am asking what is the best tool-set/method to achieve this? I understand there are free VM tools available but I have never done this before and would appreciate any help.

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  • reduce memory footprint of java virtual machine

    - by Lorenzo Boccaccia
    I've a citrix server where multiple users use a multiple java application. Is there a way to reduce the memory footprint of the jvm itself? The max heap is already set fairly low (64MB), as the permgen (32MB) space and we're to the point that the jvm itself uses way more memory than the application itself (the committed area is around 350MB) I'm looking for a way to reduce the jvm ram usage or to make the all the applications run within the same jvm or any other way of sharing common pages between running jvm (if possible) or try switch to switch to a jvm if a jvm exists having optimizations relative to this scenario currently using windows 2003 server and sun java virtual machine 1.6

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  • The concept of virtual host and DNS [migrated]

    - by Subhransu
    I have a dedicated server and a mydomain.com (bought from a hosting company). I want to host a website from my dedicated server with the domain mydomain.com i.e. when I enter mydomain.com from browser it should point to the IP(let's say X.X.X.X) of dedicated server(and a particular folder inside it). I have some following queries: In Server I know I need to edit some of the files (like: host or hostname file) in the server but I do not know what exact file I need to edit. How to add a Site enable or Site available in apache2 ? In Hosting Company control Panel Which records to add (A or cname or anyother)? Where Should I add DNS(in dedicated server section or domain name section)? How it is going to affect the behaviour of the domain? in short the question is: How the virtual host works & how to add DNS?

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  • IIS 7.5 401 -UnAuthorized Access on a Virtual Directory

    - by Jimmy
    I have setup a website in IIS 7.5 on a Windows 2008 machine. The website is sitting on C:/websites/ Then I added a virtual directory called "/uploads" that points to "d:/websites/uploads". This directory holds all the images/media. When I browse the website in browser, I dont see any images etc. When I browse an image directly I notice that it's throwing a 401 error. 401 - Unauthorized: Access is denied due to invalid credentials. I have searched Google quite a lot and I am pretty sure I am have all the permissions setup correctly. Can anyone tell me what I could be doing wrong here?

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  • Hard freeze on new computer

    - by mphair
    OCZ Gold 3x2GB 240-Pin DDR3 SDRAM PC312800 Palit NE5T240SFHD01 GeForce GT240 1GB 128-bit GDDR5 ASUS P7P55D-E LGA 1156 P55 SATA 6Gb/s USB 3.0 ATX Intel Motherboard Intel Core i7-860 Lynnfield 2.8GHz 8MB L3 Cache LGA 1156 95W Quad-Core Processor SAMSUNG 22X Optical drive (DVD+-R/RW) CORSAIR CMPSU-620HX 620W ATX12V V2.2 Windows 7 Ultimate x64 Brand new system (got it from newegg two days ago) and it booted up and installed windows and ran for a day just fine. Yesterday, I boot it up in the afternoon and run various games at full graphics for most of the day. I turn on WoW and play for a few hours and it hard stalls. No numlock switching, no mouse feedback but nothing going wrong on the screen. No BSOD. I wait a bit to see if the stall is just a temporary one, but then force shutdown the computer. Upon reboot, everything seems fine, windows sees that it didn't shut down properly but I go into normal boot and restart WoW. I'm able to load it up and start running around when it freezes again. This time when I restart, it doesn't even get to BIOS. It starts (power goes on) and it just hangs with no output to the monitors. I shut it off and went to bed. This morning, I turned it on and went into BIOS setup. I'm not terribly experienced with messing with BIOS settings but I checked over them the best I could. Everything seems fine so I boot into windows and browse the internet for a bit looking for a solution, hard freeze within 10 minutes. I restart and go into BIOS and check the CPU temperature, 40c. I'm kinda stumped here. Some people say it might be a memory issue, but why would it take so long for it to come up? Could it have been slowly accessing one memory stick at a time and then it just got to a bad one and that's what is causing it to fail? It seems odd that I don't get a BSOD from a hardware failure. Having the screen just halt with no input or output change seems like a software thing to me. Any thoughts?

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  • virtual function

    - by hitech
    class a { virtual void foo(void) ; }; class b : public a { public: virtual void foo(void) { cout<< "class b"; } }; int main ( ) { class a *b_ptr = new b ; b_ptr->foo(); } please guide me why the b_ptr-foo() will not call the foo() function of the class b?

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  • Is there a preferred way to set up a virtual Ubuntu server on a desktop?

    - by Keith Groben
    I love Ubuntu, and as I am searching the internet, I am finding that some questions I have have not been answered yet. One of them is if there is a preferred way to set up a virtual server. I look through the Ubuntu Software Center, but found nothing from the search "Virtual Server" I then searched the internet and found lots of posts to trouble-shoot VMWare virtual servers. So, like a good researcher I looked in the Software center for VMWare. Sure enough I found "user agent" and "view open client". I didn't get sufficient info from the software center. And searching the website only left me scratching my head. I want to install Ubuntu Server Edition. I already have a server, but am cautious "trying out" things on it. So a virtual server sounds like what I need.

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  • Iptables based router inside KVM virtual machine

    - by Anton
    I have KVM virtual machine (CentOS 6.2 x64), it has 2 NIC: eth0 - real external IP 1.2.3.4 (simplified example instead of real one) eth1 - local internal IP 172.16.0.1 Now I'm trying to make port mapping 1.2.3.4:80 = 172.16.0.2:80 Current iptables rules: # Generated by iptables-save v1.4.7 on Fri Jun 29 17:53:36 2012 *nat :OUTPUT ACCEPT [0:0] :PREROUTING ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] -A POSTROUTING -o eth0 -j MASQUERADE -A PREROUTING -p tcp -m tcp -d 1.2.3.4 --dport 80 -j DNAT --to-destination 172.16.0.2:80 COMMIT # Completed on Fri Jun 29 17:53:36 2012 # Generated by iptables-save v1.4.7 on Fri Jun 29 17:53:36 2012 *mangle :PREROUTING ACCEPT [0:0] :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] :POSTROUTING ACCEPT [0:0] COMMIT # Completed on Fri Jun 29 17:53:36 2012 # Generated by iptables-save v1.4.7 on Fri Jun 29 17:53:36 2012 *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] COMMIT # Completed on Fri Jun 29 17:53:36 2012 But there is nothing works, I mean it does not forwards that port. Similar configuration without virtualization seems to be working. What am I missing? Thanks!

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  • List of existing Android Virtual Devices empty

    - by sunpech
    I'm new to Android development and I'm currently going through some tutorials. When I setup a new Android Project in Eclipse, and select Windows - Android SDK and AVD Manager, in Virtual Devices, the list of existing Android Virtual Devices is empty. Is it supposed to be? From the pictures in the tutorial, it's pre-populated. Can I download these AVDs from somewhere, am I missing something here? Also, I'm developing this on my Macbook Pro.

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  • don't know how this virtual directory structure was setup on iis6

    - by deostroll
    Our development server has a setup as follows: \\DEVSRVR\WEBSITES\COMMON +---include Here is where all css and script files resides. They are required by various web applications \\DEVSRVR\WEBSITES\TESTING\SAM +---Backup ¦ +---bin +---bin +---help Here is where an application resides. Suppose there is an aspx page under the folder called SAM, we'd normally issue an http request as follows: http://testing.apps/sam/default.aspx We believe that testing.apps virtual name points to \\devsrvr\websites\testing folder. Suppose there is a css file called menu.css inside common/include. We'd simply have to make the following http call to get it: http://testing.apps/common/include/menu3.css This works!!! I don't understand how? There is no such folder called common inside of testing...

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  • Create Virtual Image of Laptop before Formatting

    - by Simon Mark Smith
    I have a 3 year old laptop running Windows XP that I used for business. Although I have not used the laptop in over a year, I now want to re-commission it with Windows 7 and a fresh install. Before I do the fresh install I want to create a Virtual Image of the laptop that I can keep and potentially run on my desktop machine should I ever need to access any of the old files/projects that it contains currently. I know that most people will say just copy the files over to your desktop, but my concern is the configuration of the laptop. I used to use it for development and it has older versions of Visual Studio, SQL Server, Active X controls etc, etc than I currently use so I really want to preserve the environment not just the files. So really I am asking what is the best tool-set/method to achieve this? I understand there are free VM tools available but I have never done this before and would appreciate any help.

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  • Virtual Machine files on ramdisk doesn't run faster than on physical disk

    - by Landy
    I installed total 36G memory (4x8G + 2x2G) in the host (Windows 7) and I used ImDisk to create a 32G ramdisk and format it to NTFS file system. Then I copied the virtual machine (in VMware Workstation format) folder, including vmx, vmdk, etc... to the new created ram disk. Then I tried to power on it in VMware Workstation. What made me surprised is that the performance is not better than before. It cost almost the same time to power on the Windows 7 VM. I check the Resource Monitor in the Windows 7 host, and the statistics of CPU, disk, network are rather normal. The memory has reported 3000+ hard fault/sec when guest OS boot then drop to 0 after the guest powered on. Any idea about this issue? I had thought the performance of ramdisk will be better than physical disk in this case. Am I wrong? Thanks.

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  • pip install very slow through virtual box

    - by AJP
    pip install --exists-action=w -r requirements.txt is very very slow through virtual box. Any suggests of how to diagnose and fix? Would seeing the VagrantFile be useful? VirtualBox 4.2.12 (can't upgrade to .14 as it doesn't work.) Vagrant 1.0.7 Host machine: ProductName: Mac OS X ProductVersion: 10.7.5 BuildVersion: 11G63b VagrantFile contains: Vagrant::Config.run do |config| config.vm.box = "precise64" config.vm.customize ["modifyvm", :id, "--memory", 2048] config.vm.box_url = "http://files.vagrantup.com/precise64.box" config.vm.network :hostonly, "33.33.33.21" config.vm.forward_port 5000, 5000 config.vm.forward_port 5555, 5555 config.vm.share_folder "v-root", "/vagrant", "./" Vagrant::Config.run do |config| config.vm.provision :shell, :inline => "VENV=/usr/local/venv bash /vagrant/setup_env.sh" end end Normal download speed is only about 5 times slower at 0.8 Mb per second versus 4 MB per second (as judged by curling a 50 Mb file from S3). But pip install is taking about 20 times longer from Mac (i.e. about 40 minutes) versus 2.

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  • Start program on usb hardware plugin

    - by petebob796
    Is there a way to detect when a specific device is plugged into a usb port, what I would like to happen is when I plug my laptop into my docking station it run up several apps to account for my different keyboard, mouse and monitors. Specifically I have an issue with some software for my G15 keyboard stopping media player closing properly. Hopefully in .NET but if not any suggestions appreciated.

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