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• Cannot set video resolution above 640x480 after installing Windows XP SP2

  - by waanders

  I've installed Windows XP SP2 on a computer (there was not SP at all). Now the display settings are set back to 640x480 and 4 bits colors. And I can't change it, it's the only option in Settings tab of the Display dialog of Windows. The screen look awful now, how can I solve this problem? UPDATE: Seems to be a problem with the video driver (thanks @Karan and @Hennes). I did run Speccy (PC-Wizard freezes the computer) and this is a part of the log file: Summary Operating System Microsoft Windows XP Professional 32-bit SP3 CPU Intel Celeron Willamette 0.18um Technology RAM 512 MB DDR @ 133MHz (2.5-3-3-6) Motherboard COMPAQ 0838h (FC-478) Graphics Standard Monitor (640x480@1Hz) Hard Drives 19.0GB Maxtor 2B020H1 (PATA) Optical Drives No optical disk drives detected Audio No audio card detected ... Graphics Monitor Name Standard Monitor on Current Resolution 640x480 pixels Work Resolution 640x450 pixels State enabled, primary Monitor Width 640 Monitor Height 480 Monitor BPP 4 bits per pixel Monitor Frequency 1 Hz Device \\.\DISPLAY1 OpenGL Version 1.1.0 Vendor Microsoft Corporation Renderer GDI Generic GLU Version 1.2.2.0 Microsoft Corporation Values GL_MAX_LIGHTS 8 GL_MAX_TEXTURE_SIZE 1024 GL_MAX_TEXTURE_STACK_DEPTH 10 GL Extensions GL_WIN_swap_hint GL_EXT_bgra GL_EXT_paletted_texture GL_EXT_bgra

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• Can I take my ReadyNAS drive in Raid1 and plug it straight into new different machine?

  - by jacko

  I would assume that I can just take my HDD out of my NAS (in raid1 mirror) and plug it into another enclosure and have it work off the bat but I'd like to make sure... Any ideas? Edit: My current setup is a Netgear ReadyNAS in (hardware) raid1. I'm hoping to replace this with a home theatre type PC (possibly running Ubuntu), and would like to migrate my data without having to do a bulk transfer over my network between the 2 machines. Can anyone confirm the case for the Netgear ReadyNAS? Edit: Ok after further reading it seems that the ReadyNAS Duo formats my drive as ext3 in 16k blocks. There are instructions for mounting a drive into a linux box here: Mounting Sparc-based ReadyNAS Drives in x86-based Linux There is also talk about a linux image here: ReadyNAS Data Recovery - VMware recovery tool I'm not sure whether this means they ReadyNAS actually implements software raid under the hood, or what? So it appears like it IS do-able, but do any of you linux guru's know whether this is viable and whether the fact that they are in raid 1 affect matters?

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• Can I trick Carbonite into backing up an external hard drive?

  - by Brian

  I use Carbonite to back up my PC (Windows XP). We were running low on disk space on our home PC (down to 15 GB), so I went out and purchased an external hard drive. However, Carbonite will not back it up. Is it possible to set up Carbonite to backup an external hard drive? I just want the external drive to be extra disk space. From their FAQ: The current version of Carbonite backs up only the files that reside on permanent hard drives on your computer. It will not back up network drives, external drives, and NAS (network accessed storage) drives. If there are files on a remote drive that you wish to include in your Carbonite backup, you should copy the files to a folder on your local hard drive. If the files are on a shared network drive, you could install Carbonite on the computer on which the network shared drive physically exists, and back the files up directly from that computer. Check back soon for a Carbonite service plan that will allow you to back up your external drives.

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• Should I partition a 1TB Hard Disk whose primary use is media storage?

  - by Senthil

  I am going to get a 1TB hard disk. I will be storing 1080p or 720p movies, high-bitrate music and pictures in it. I use my PC 90% of the time only to play/listen/see those. I am running out of space in my current HD so I am getting another one. My specs are 2.7GHz Dual Core, 512MB GeForce 9400GT, 2GB DDR2 RAM and all the proper matroska codecs/players. I guess that is enough to play 1080p movies withough a glitch, given an ideal hard disk. I've read about proper partitioning giving performance improvement etc.. I don't want my hard disk to be the bottleneck. Can someone tell me whether I should partition my 1TB hard disk into many drives? If I should, what is the ideal size of each partition? Smooth playing of movies is very important to me. Once I start filling up the disk, there is no turning back. So I want to get it right before I start. Thanks.

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• How do you do a keyword search the Services.msc (mmc) window in Windows 7?

  - by Warren P

  When you want to run a service, you have very limited capabilities, in all current Windows versions, as far as I can tell. I usually start Services by typing "services.msc" into the Start-Run box, on most versions of Windows, this works. I know how to click the "Name" column in the MMC view of Windows Services. If you know what the first few characters of a service name is, you can usually sort by the name, and type the prefix to scroll the list down (find Windows Search for example). This seems pretty weak to me, so I spent some time searching the interwebs for tools that do a better job of managing services. Usually I have a keyword that I know "fooWare" might be the keyword, and I need to find the (usually badly named) service and start it and stop it. This is often WAY too hard. The best I could do is "NET SERVICES" from the command line, and maybe add a grep in there, but that doesn't list every service, only a few of them. And the MMC snap-in in Win7 now has an Export List button, exporting to csv text file feature which I have used from time to time, to export and then search. I have thought of writing my own tool. I'm hoping a better "service manager" utility exists out there that sysadmins use. I'd like a search box at the top right corner, kind of the same way that the Add-Remove-Programs dialog in Win7 and Vista has a search facility. Does such a services utility exist out there?

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• Virtual Machine Network Architecture, Isolating Public and Private Networks

  - by Mark

  I'm looking for some insight into best practices for network traffic isolation within a virtual environment, specifically under VMWARE ESXi. Currently I have (in testing) 1 hardware server running ESXi but i expect to expand this to multiple pieces of hardware. The current setup is as follows: 1 pfsense VM, this VM accepts all outside (WAN/internet) traffic and performs firewall/port forwarding/NAT functionality. I have multiple public IP addresses sent to the this VM that are used for access to individual servers (via per incoming IP port forwarding rules). This VM is attached to the private (virtual) network that all other VMs are on. It also manages a VPN link into the private network with some access restrictions. This isn't the perimeter firewall but rather the firewall for this virtual pool only. I have 3 VMs that communicate with each other, as well as have some public access requirements: 1 LAMP server running an eCommerce site, public internet accessible 1 accounting server, access via windows server 2008 RDS services for remote access by users 1 inventory/warehouse management server, VPN to client terminals in warehouses These servers constantly talk with each other for data synchronization. Currently all the servers are on the same subnet/virtual network and connected to the internet through the pfsense VM. The pfsense firewall uses port forwarding and NAT to allow outside access to the servers for services and for server access to the internet. My main question is this: Is there a security benefit to adding a second virtual network adapter to each server and controlling traffic such that all server to server communication is on one separate virtual network, while any access to the outside world is routed through the other network adapter, through the firewall, and on the the internet. This is the type of architecture i would use if these were all physical servers, but i'm unsure if the networks being virtual changes the way i should approach locking down this system. Thank you for any thoughts or direction to any appropriate literature.

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• SQL Server Reporting Services - website blank, builder works

  - by Keith

  We have a few reports in SQL Server Reporting Services. For some reason when we run the report from the website, it doesn't return any data. When I run the same report from the Report Builder, it returns data. I looked in the logs and the only errors I could find is: ReportingServicesService!library!8!6/15/2012-08:12:33:: i INFO: Current DB Version Unknown, Instance Version C.0.8.54. ReportingServicesService!library!8!6/15/2012-08:12:33:: e ERROR: Throwing Microsoft.ReportingServices.Diagnostics.Utilities.InvalidReportServerDatabaseException: The version of the report server database is either in a format that is not valid, or it cannot be read. The found version is 'Unknown'. The expected version is 'C.0.8.54'. To continue, update the version of the report server database and verify access rights., ;Info: Microsoft.ReportingServices.Diagnostics.Utilities.InvalidReportServerDatabaseException: The version of the report server database is either in a format that is not valid, or it cannot be read. The found version is 'Unknown'. The expected version is 'C.0.8.54'. To continue, update the version of the report server database and verify access rights. ReportingServicesService!library!8!6/15/2012-08:12:33:: e ERROR: Exception caught while starting service. Error: Microsoft.ReportingServices.Diagnostics.Utilities.InvalidReportServerDatabaseException: The version of the report server database is either in a format that is not valid, or it cannot be read. The found version is 'Unknown'. The expected version is 'C.0.8.54'. To continue, update the version of the report server database and verify access rights. I'm not really sure why it would be a different version. It's all SQL Server 2008 R2 and I haven't made any changes to it since it's been running.

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• What is the best way to create a failover cluster for my IIS website?

  - by ObligatoryMoniker

  Our eCommerce website www.tervis.com currently runs on two servers: SQL server: 2005 x 86 on Windows Server 2003 Standard x86 with a single dual core processor and 4 gb of memeory IIS server: Windows Server 2008 Web edition x64 with dual quad core hyper threaded processors and 32 gb of memory Tervis.com's revenue has steadily grown to the point where we need to have redundant servers deployed with a fail over mechanism so that we do not have any down time. Because the SQL server is so underpowered compared to the web server my thought was to purchase: 2 x SQL Server 2008 R2 web edition x64 single processor license 2 x Windows Server 2008 R2 Web Edition Licenses 1 x New Physical dual quad core 32 GB server 1 x F5 Load Balancer I need the Windows Server 2008 R2 Web Edition licenses so that I can run SQL and IIS on the same box for both of these servers. The thought is to run this as an active/passive fail over cluster that could be upgraded to an active/active cluster if we purchased the additional SQL licensing. The F5 load balancer would serve as the device that monitors the two servers and if the current active one stops responding then fails over to using the other server. To be clear this is not windows clustering but simply using a load balancer to fail over between two computers so that you now have a cluster in the general sense. Is this really the best way to accomplish what I need? Is there some way to leverage the old server 2003 SQL server to function as the devices that funnels http requests to the appropriate active server and then fails over if a problem occurs? Is there any third party clustering software that might help me accomplish this in a simpler fashion?

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• Concatenating ogg video files from the command line

  - by Noufal Ibrahim

  Okay. I've got a few ogg files I've created using a desktop recording tool. I've transcoded them using ffmpeg once (mainly to clip out the beginnings and the ends). Now, I have 3 such files which I want to concatenate into a single .ogv file. I tried using oggCat, it crashed with some kind of error (I tried concatenating a file to itself using oggCat and that failed too leading me to believe that my distro is shipping a broken version of the package). Simply cating the files works but I can't seek which is not cool. mencoder run like this mencoder -ovc lavc -oac lavc file1.ogv file2.ogv file3.ogv -o complete.ogv. It transcodes the files into an avi and clips off a little of the 3 videos. So, how do I do this? Update 1: My current workaround is to transcode the 3 files into .mpg using ffmpeg, then cating them together and then transcoding them back into ogv. Update 2: PiTiVi works for this kind of thing but I need something from the command line that I can automate and script.

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• Internet Explorer 8 Loses Cookies

  - by Mikeon

  I'm running Windows 7 for some time now and use Internet Explorer 8 as my main browser. What I've noticed is that it "loses" cookies A LOT! I mean it! Typical situation: I log in into a side checking the remember me checkbox. I reboot the computer/restart the browser, go to the site, get logged in automatically - I'm happy. From time to time however, I'm asked for the credentials. Normal situation you would say. So would I if it didn't happen few times a week. Come on! On Internet Explorer 7 I didn't notice this as much. Cookies were lost once a quarter or so. Note that i was using IE7Pro with my IE - dunno however if it has anything to do with my current problem. Anyway I wonder if this behavior is "normal" or is it only me? more info for people that suggest it may be normal - cookie expiring and stuff. When it happens I loose all auth cookies - gmail, bloglines and whatnot!

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• ps aux as non-root doesn't show all processes

  - by JMW

  hi, i'm using an ubuntu 10.04 server... when i run ps aux as root i see all processes when i run ps aux as nonroot i see JUST the processes of the current user after a bit of research i found the following solution: root@m85:~# ls -al /proc/ total 4 dr-xr-xr-x 122 root root 0 2010-12-23 14:08 . drwxr-xr-x 22 root root 4096 2010-12-23 13:30 .. dr-x------ 6 root root 0 2010-12-23 14:08 1 dr-x------ 6 root root 0 2010-12-23 14:08 10 dr-x------ 6 root root 0 2010-12-23 14:08 1212 dr-x------ 6 root root 0 2010-12-23 14:08 1227 dr-x------ 6 root root 0 2010-12-23 14:08 1242 dr-x------ 6 zabbix zabbix 0 2010-12-24 23:52 12747 [...] my first idea was, that it got mounted in a weird way: /etc/fstab is ok and it doesn't seem to be mounted in an weird way... my second idea was, that there might be a rootkit: but it's not a rootkit... rkhunter tells me, that there is no rootkit installed... i don't know if it is since the machine got installed or came with an update. i've just installed zabbix-agent on the machine and realized, that it didn't work properly... What could have caused such strange permissions (500) and how can i set it back to an normal level (555) ? Crazy, i've never seen something like that... thanks in advance for any help and merry christmas :) see you

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• How can I connect my Xbox to my Mac on my network

  - by codecowboy

  I have a wireless router/modem (Router 1) in my living room. This is connected to the internet (cable). Wireless is disabled as the router has a terrible wireless range. My Xbox is connected via ethernet to Router 1. Another LAN output from Router 1 connects to a powerline adapter. Router 1 acts as a DHCP server on 192.168.0.x and has the IP 192.168.0.1 In a second room I have Router 2. This has the powerline feed from Router 1 going into the WAN socket. This router runs the Tomato Firmware and acts as a wireless router for the rest of the house using the IP range 192.168.1.x. Router 2 IP is 192.168.1.1. My Mac is connected to Router 2 using a LAN cable and has the IP 192.168.0.133. Several mobile devices need wireless access. I want an ethernet connection to my Mac, not wireless. I should be able to use software like Connect360 to share media from my Mac to the XBox but the XBox does not see my Mac. I can ping 192.168.0.1 from the Mac. Is this possible using my current setup? If so, how?

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• How to prevent remote hosts from delivering mail to Postfix with spoofed From header?

  - by Hongli Lai

  I have a host, let's call it foo.com, on which I'm running Postfix on Debian. Postfix is currently configured to do these things: All mail with @foo.com as recipient is handled by this Postfix server. It forwards all such mail to my Gmail account. The firewall thus allows port 25. All mail with another domain as recipient is rejected. SPF records have been set up for the foo.com domain, saying that foo.com is the sole origin of all mail from @foo.com. Applications running on foo.com can connect to localhost:25 to deliver mail, with [email protected] as sender. However I recently noticed that some spammers are able to send spam to me while passing the SPF checks. Upon further inspection, it looks like they connect to my Postfix server and then say HELO bar.com MAIL FROM:<[email protected]> <---- this! RCPT TO:<[email protected]> DATA From: "Buy Viagra" <[email protected]> <--- and this! ... How do I prevent this? I only want applications running on localhost to be able to say MAIL FROM:<[email protected]>. Here's my current config (main.cf): https://gist.github.com/1283647

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• Best shortcut in Total Commander

  - by life-warrior

  So, what's your favourite TC shortcut or shortcut combination ? Which one do you use and for what purpose ? Among my most often used: Ctrl-Left ( or Ctrl-Right ) - open archive or folder under cursor in opposite tab. Ctrl-Shift-Enter, Alt-F8, Ctrl-X - copy full file path to clipboard. Shift-F6, Shift-End(if needed), Ctrl-C - copy only file name w/o path. Select files, Ctrl-M - multi-rename, for example remove "DVDrip" from file names. Ctrl-\ - go to root directory. Ctrl-D, - go to directory with highlighted letter specified. For example, name a downloads directory "&Downloads" in favourites, and the letter after ampersand will be highlighted. Alt-F7, feed to listbox, Ctrl-A, Mark(menu)-Save selection to file - creates a file with all files and directories inside current, with full path. Ctrl-[3-6] - sort files by name(3), extension(4), date(5), size(6). For example, Sort by name, when you need movies and soundracks with the same name and different extension to group them together. Sort by extension, when you need to find EXEs in Windows directory. Sort by Date, when you need to find the latest file downloaded in your dir. Sort by size, when you need to delete the largest files for free space.

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• Whats the best way to update Ubuntu 9.04?

  - by Fu86

  I have a Ubuntu 9.04 server which has no packase support anymore. If I want to update my package lists, I get th following errors: Err http://de.archive.ubuntu.com jaunty-security/multiverse Packages 404 Not Found [IP: 141.30.13.10 80] W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/jaunty/main/binary-amd64/Packages 404 Not Found [IP: 141.30.13.10 80] .... I read at the official Ubuntu-Support-Page, that there is a update-manager-core-Package to upgrade to a new release. Unfortunately I dont have this package installed and I am unable to install it because of the lack of package sources. EDIT: Installing the package update-manager-core from another release doesn't work because it depends on a higher version of python-apt. (Tried with 10.04) $ dpkg -i update-manager-core_0.134.7_amd64.deb Selecting previously deselected package update-manager-core. (Reading database ... 28743 files and directories currently installed.) Unpacking update-manager-core (from update-manager-core_0.134.7_amd64.deb) ... dpkg: dependency problems prevent configuration of update-manager-core: update-manager-core depends on python-apt (>= 0.7.13.4ubuntu3); however: Version of python-apt on system is 0.7.9~exp2ubuntu10. update-manager-core depends on python-gnupginterface; however: Package python-gnupginterface is not installed. dpkg: error processing update-manager-core (--install): dependency problems - leaving unconfigured Errors were encountered while processing: update-manager-core So, whats the best way to upgrade to to current Release without reinstalling the complete (virtual) server?

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• Using WebDAV for automated downloads

  - by Geo Ego

  I currently manage a number of sites (at one point about a dozen, currently four, but soon growing into the dozens or hundreds) that serve a piece of software to clients at their remote locations. Our web server is Windows SBS Server 2k3, and the remote servers are Windows Server 2k3.When we have new versions of the software, I upload this new software to a specific directory and rename it; each time the clients boot, they pull their software from that specific directory. With just a few sites, it's no problem for me to RDP in and copy the files over. As the number grows, this will quickly become quite unwieldy. So I'm thinking that WebDAV would be part of a solution, so that I could simply push the newest version to our server (Windows SBS Server 2003) and make it available to the sites to grab. However, on the remote server side, what are some suggestions for automating the download? I only want the servers to download the files during downtime (between 3 AM and 9 AM), and I only want them to download if there is a new version available. I had thought of writing a program that checked the files on the WebDAV server at a regular interval, compared a hash of the current software to a hash of the software on the server, and only downloaded if they were different, but I'm wondering if there is something I am unaware of that can automate the process.

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• repo sync "CyanogenMod/android_prebuilt" size and resume capability.?

  - by james

  I'm downloading CyanogenMod-10.1 source on a low speed broadband. About 4GB of source is downloaded . In that 4GB, there is a big project "CyanogenMod/android_frameworks_base" which alone took 1GB of download without any interruption. Ok now, after 4GB of download, my internet got disconnected and I had to stop (ctrl + z) repo sync while it was downloading the project "CyanogenMod/android_prebuilt". Before I stopped repo sync the android_prebuilt got downloaded till 250MB and is at 42percent. I checked the working folder and there is a file "tmp_pack_df5CKb" of size 250MB in the path "$WORKING_DIR/.repo/projects/prebuilt.git/objects/pack/" . Then I restarted repo sync and it was downloading the android_prebuilt project. But I'm not sure if it was downloading from start or resuming from 250MB. While downloading this time , the previous "tmp_pack_df5CKb" isn't deleted and the content is being downloaded to a new file "tmp_pack_HPfvFG". I heard repo sync cannot be resumed for a project. But here, since the previous file isn't deleted I want to ask if android_prebuilt is resuming or downloading from start again? Now that my high speed internet is over (current speed 256kbps), I'm not sure if I can download the remaining ~4GB if single project is in size 500 MB.

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• ASP.NET Session State SQL Server 2008 R2 Freezes with High CPU Usage

  - by jtseng

  Our ASP.Net website uses SQL Server as the session state provider. We currently host the database on SQL Server 2005 since it does not play well on 2008 R2. We would like to know why, and how to fix it. hardware setup Our current session state server has SQL Server 2005 with the files hosted on a single local disk. It is one of our oldest servers since it has served us well, and we never felt the need to upgrade it. The database is about 2 GB holding 6000 sessions. (The sessions are a little big, but we need it.) We have another server with SQL Server 2008 R2 with a much faster CPU, much more RAM, and a much faster hard disk. situation One day, we have a huge surge in traffic. The transaction log growth on SQL Server freezes the server for 10's of seconds, allowing only a few requests through in minutes. So we load up the new server with ASPState with very large data and log files and point all of our applications to the new server. It chugs along fine for about 5 minutes, and then the CPU usage jumps up to 50% of the 16 cores that Standard Edition can use and freezes for 10's of seconds at a time. The files do not record any autogrowth events. The disk queue is nice and low. RAM usage is low. CPU usage on our old server has never been higher than 5%. What happened on the new server? Alternatively, I would like to hear success stories with ASP.NET session state server running on SQL Server 2008 R2 with an average write load of 30MB/sec with bursts up to 200MB/sec.

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• Apache 2: Mod_Rewrite Help - If/else for directory exists

  - by BHare

  This is my current and sloppy Apache 2 mod_rewrite. Keep in mine the part with site1 site2..etc has about 50 sites. RewriteEngine on RewriteCond %{HTTP_HOST} ^([^.]+)\.mainsite\.org$ RewriteCond /home/%1/ -d RewriteRule ^(.+) %{HTTP_HOST}$1 RewriteRule ^([^.]+)\.mainsite\.org/media/(.*) /home/$1/special/media/$2 RewriteRule ^([^.]+)\.mainsite\.org/(.*) /home/$1/www/$2 RewriteCond %{HTTP_HOST} ^mainsite\.org$ [NC] RewriteRule ^(.*)$ http://www.mainsite.org$1 [R=302] RewriteCond %{HTTP_HOST} (site1|site2|site3|site4)\.(com|net|biz|org|us)$ [NC] RewriteCond %{REQUEST_URI} !^/media/ RewriteRule ^/(.*)$ /home/%1/www/$1 RewriteCond %{HTTP_HOST} (site1|site2|site3|site4)\.(com|biz|net|org|us)$ [NC] RewriteRule ^/media/(.*)$ /home/%1/special/media/$1 RewriteCond %{REQUEST_URI} favicon.ico$ RewriteRule ^(.*)$ /misc/favicon.ico So if someone tries to go to theirusername.mainsite.org it will check if /home/theirusername/ exists, and if it does use their www (/home/theirusername/www/) as the file location for web files. If they try they try to access theirusername.mainsite.org/media/ it will make a special file location to look for the file(s) at /home/theirusername/special/media/ I would like it if the username did NOT have /home/username that it would automatically default to www.mainsite.org. I am having a hard time understanding how to do skips and such. so: If someone went to notrealusername.mainsite.org/forum/ it would auto direct to www.mainsite.org/forum/ Extra: I am using repetitive code for other site for example lets say foobar has a website foobar.com, it goes through the same process as mainsite.org so figured maybe having something like: RewriteCond %{HTTP_HOST} ^([^.]+).(mainsite.org|com|net|biz|org)$ where I could have one major rule for all existing domains who have a /home/

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• virtual memory commited

  - by vinu

  After a server bounce happens, and after around 40-45 days time period, we receive continuous “Committed Virtual Memory” alerts which indicates the usage of swap space in the magnitude of 4GB This also causes the application to perform very slowly and experience a number of stalled transactions. Server Setup: 4 Tomcat Servers (version 7.0.22) that are load balanced (not clustered) by 2 Apache Servers. And the Apache servers themselves supply static content and routing to these 4 tomcat servers. Java Runtime Version: java version "1.6.0_30" Java(TM) SE Runtime Environment (build 1.6.0_30-b12) Java HotSpot(TM) 64-Bit Server VM (build 20.5-b03, mixed mode Memory Startup Parameters: MEMORY_OPTIONS="-Xms1024m -Xmx1024m -Xss192k -XX:MaxGCPauseMillis=500 -XX:+HeapDumpOnOutOfMemoryError -XX:MaxPermSize=256m -XX:+CMSClassUnloadingEnabled" Monitoring – Wily monitoring is available in all the production servers that monitors key server parameters and sends out configurable alert emails based on pre defined settings. Note: Each of the servers also has two other separate tomcat domains that run different applications Investigated area: There is no Heap Memory Leak and the GC is running fine without any issues over any period of time The current busy thread count corresponds directly to the application usage – weekends and nights have lesser no. of threads compared to business hours ThreadLocal uses a WeakReference internally. If the ThreadLocal is not strongly referenced, it will be garbage-collected, even though various threads have values stored via that ThreadLocal. Additionally, ThreadLocal values are actually stored in the Thread; if a thread dies, all of the values associated with that thread through a ThreadLocal are collected. If you have a ThreadLocal as a final class member, that's a strong reference, and it cannot be collected until the class is unloaded. But this is how any class member works, and isn't considered a memory leak. The cited problem only comes into play when the value stored in a ThreadLocal strongly references that ThreadLocal—sort of a circular reference. In this case, the value (a SimpleDateFormat), has no backwards reference to the ThreadLocal. There's no memory leak in this code. Can anyone please let me know what could be the cause of this and what to be monitored?

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• Windows 7 fails to connect to the internet a few minutes after startup

  - by SageTheGreat

  Problem Earlier today, when I turned on my desktop computer, my internet connection works fine. Cryptocurrency miners connecting and hashing as usual and I can browse websites. But after a few minutes, my miner fails indicating that there is something wrong with my internet connection. Tried refreshing my browser and is stuck at "resolving host", and then presented me an error. After that, i can't browse sites anymore. But the weird thing is that the network icon in Windows 7 shows no signs of problems. Solutions Made Restarted my computer without doing anything: Problem persists. Tried using the network troubleshooter of windows: Reported no problems Stopped bonjour still no progress. Loaded windows using Last good config: still no progress. Restarted Modem: No change. Current Status I currently did a system restore to my system to a point before installing the latest update from Microsoft. Because earlier today, I installed some updates and after that, the problem started to appear. (After system restore, same problem.) Latest Programs installed before the problem MS Visual Studio 2013 (but internet still worked fine after the install). I hope someone could provide answers on this problem. It is my first time encountering this. EDIT: Additional Info OS: Windows 7 SP1 64-bit AV: Avast Free Antivirus Internet Connection Type: Ethernet It appears that my Laptop can't even connect to the machine thru Remote Desktop My laptop and phone on WiFi works fine and can connect to the internet. EDIT 2: Whenever I boot into Safe Mode, my Internet is fine.

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• Windows: How to make programs think they're not running in a terminal server session?

  - by sinni800

  I am using the program "SoftXPand 2011 Duo" by Miniframe on my Windows 7 PC. It makes two workstations out of one computer. It uses the terminal services built into Windows to create the additional session. I use two screens, two keyboards and two mice to create this "illusion" of two computers. It works quite well and I can even play two different 3D games on the two screens attached to this single machine (using a Radeon HD5770 and a Core i5 2500k with 8 Gbytes RAM). There are a few downsides to this. I just found about one that is hidden on the first look. The sessions you are in (even on the first workstation) will identify as a terminal server session! Now some programs will run with limited effects (graphical), and some won't run at all. This also resulted in some games not running at all. They just say "Cannot be run in a terminal server session" and exit. I have already proven that top modern games (DirectX 10, 11) run just as good as on the same machine without SoftXPand, so this is a pretty artificial limitation! So, can I somehow hack my current session so it doesn't look like a terminal server session anymore? I. E. #include <windows.h> #pragma comment(lib, "user32.lib") BOOL IsRemoteSession(void) { return GetSystemMetrics( SM_REMOTESESSION ); } Will return FALSE? (Not a programming question! Just an example how programs detect if they're in a terminal server session!)

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• Triple monitor setting in Linux with USB-HDMI adapter

  - by Oscar Carballal

  I'm trying to set up a triple monitor desktop at my office using Fedora 17, but it seems impossible, let me explain the setting: Laptop ASUS K53SD with 2 graphic cards, Intel and nVidia (Screen controled by Intel card) 24" Full HD monitor connected to the HDMI output (controlled by Intel card) 23" Full HD monitor connected to an USB-HDMI adapter (via framebuffer in /dev/fb2, apparently) VGA output (not used) controlled by nVidia card First of all, the USB-HDMI adapter works perfectly, it gives me a green screen (which means the communication is OK) and I can make it work if I set up a single monitor setting via framebuffer in Xorg. Here I leave the page where I got the instructions: http://plugable.com/2011/12/23/usb-graphics-and-linux Now I'm trying to set up the the two main monitors (laptop and 24") with the intel driver and the 23" with the framebuffer, but the most succesful configuration I get is the two main monitors working and the third disconnected. Do you have any idea what can I do to make this work? Here I leave my xRandr output and my Xorg conf: -> xrandr Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192 LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1366x768 60.0*+ 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA2 disconnected (normal left inverted right x axis y axis) HDMI1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 531mm x 299mm 1920x1080 60.0*+ 50.0 25.0 30.0 1680x1050 59.9 1680x945 60.0 1400x1050 74.9 59.9 1600x900 60.0 1280x1024 75.0 60.0 1440x900 75.0 59.9 1280x960 60.0 1366x768 60.0 1360x768 60.0 1280x800 74.9 59.9 1152x864 75.0 1280x768 74.9 60.0 1280x720 50.0 60.0 1440x576 25.0 1024x768 75.1 70.1 60.0 1440x480 30.0 1024x576 60.0 832x624 74.6 800x600 72.2 75.0 60.3 56.2 720x576 50.0 848x480 60.0 720x480 59.9 640x480 72.8 75.0 66.7 60.0 59.9 720x400 70.1 DP1 disconnected (normal left inverted right x axis y axis) 1920x1080_60.00 60.0 The Xorg file: # Xorg configuration file for using a tri-head display Section "ServerLayout" Identifier "Layout0" Screen 0 "HDMI" 0 0 Screen 1 "USB" RightOf "HDMI" Option "Xinerama" "on" EndSection ########### MONITORS ################ Section "Monitor" Identifier "USB1" VendorName "Unknown" ModelName "Acer 24as" Option "DPMS" EndSection Section "Monitor" Identifier "HDMI1" VendorName "Unknown" ModelName "Acer 23SH" Option "DPMS" EndSection ########### DEVICES ################## Section "Device" Identifier "Device 0" Driver "intel" BoardName "GeForce" BusID "PCI:0:02:0" Screen 0 EndSection Section "Device" Identifier "USB Device 0" driver "fbdev" Option "fbdev" "/dev/fb2" Option "ShadowFB" "off" EndSection ############## SCREENS ###################### Section "Screen" Identifier "HDMI" Device "Device 0" Monitor "HDMI1" DefaultDepth 24 SubSection "Display" Depth 24 EndSubSection EndSection Section "Screen" Identifier "USB" Device "USB Device 0" Monitor "USB1" DefaultDepth 24 SubSection "Display" Depth 24 EndSubSection EndSection

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• Is UPS worthwhile for home equipment?

  - by Jon Skeet

  Over the years, I've had to throw away a quite a few bits of computing equipment (and the like): Several ADSL routers with odd symptoms (losing wireless connections, losing wired connections, DHCP failures, DNS symptoms etc) Two PVRs spontaneously rebooting and corrupting themselves (despite the best efforts of the community to diagnose and help) One external hard disk still claiming to function, but corrupting data One hard disk as part of a NAS raid array "going bad" (as far as the NAS was concerned) (This is in addition to various laptops and printers dying in ways unrelated to this question.) Obviously it'll be impossible to tell for sure from such a small amount of information, but might these be related to power issues? I don't currently have a UPS for any of this equipment. Everything on surge-protected gang sockets, but there's nothing to smooth a power cut. Is home UPS really viable and useful? I know there are some reasonably cheap UPSes on the market, but I don't know how useful they really are. I'm not interested in keeping my home network actually running during a power cut, but I'd like it to power down a bit more gracefully if the current situation is putting my hardware in jeopardy.

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• Domain changes required for SSL integration

  - by user131003

  Currently my site supports regular payment options (User is taken to Payment Gateway/PG website). Now I'm trying to implement "seamless" PG integration. I need SSL for this. I'm having a dedicated server with 5 static IPs from Hostgator/HG. options: I take SSL for www.my_domain.com. According to HG, I need to change IP of main site as current IP is not really dedicated as it is being shared by cpanel etc. So They need to bind another dedicated IP to main domain for SSL to work. This would required DNS change for main website and hence cause few hours downtime (which is ok). I've noticed that most of the e-commerce websites are using subdomains like secure.my_domain.com for ssl/https. This sounds like a better approach. But I've got few doubts in this case: a) Would I need to re-register with existing PGs (Paypal, Google Checkout, Authorize.net) if I switch to subdomain? Re-registering is not an option for me. b) Would DNS change be required for www.my_domain.com in this case. This confusion arose because of following reply from HG : "If the sub domain secure.my_domain.com is added to an existing cPanel it will use the IP for that cPanel so as long as it is a Dedicated IP that will be fine. If secure.my_domain.com gets setup as its own cPanel it will need to be assigned to a Dedicated IP which would have a DNS change involved.". PLease suggest.

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