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• what kind of RAID should I choose when planning to host a vedio stream application? [duplicate]

  - by facebook-100005613813158

  This question already has an answer here: What are the different widely used RAID levels and when should I consider them? 2 answers Which RAID level should you recommend for a company that plans to hosts a video streaming application?we get 4 candidate ,RAID1 , RAID3,RAID5 AND RAID6. Which one is the best? In my opinion ,a video streaming application doesn't have a very strict demand for data correctness, so , just RAID1 is ok?But on the other hand , RAID1 seems very capacty-consuming?

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• Text to speech voices in Vista

  - by quandary

  Question: In Vista, the default text-to-speech voice is Microsoft Anna - English (United States). Is there any text-to-speech voice in German or in other languages ?

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• URL rewrite in IIS 7

  - by Martho

  I have a question. I'm using IIS 7 URL rewrite. It works fine, but now I want this: http://www.example.com/http://www.domain.com to be: http://www.example.com/www.domain.com I have no clue on how to do this. Can you help me? Thanks in advance! Martho

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• Acer M5 481pt 6488 use of touchscreen stylus

  - by Scott Decker

  I am wanting to do some basic drawing with Adobe Illustrator using a touchscreen stylus. I was looking at an answer to a different question, and Ben Richards had made mention that laptops that support digitizer (possibly wrong terminology) technology is superior. I tried a quick search to see if my model supports that, but I couldn't find anything. How can I find out if my laptop supports this technology? Thanks a bunch!

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• Is there a web-based VNC client that I can use from my own web site? [closed]

  - by Eliot Solomon

  I'm interested in being able to control one of my computers remotely, without having to download and install a bunch of software on every machine I want to access my computer from. Is there a VNC client or RDP software that can be embedded in a web page? I realize this seems like it might be a web application based question, but the web application portion would only end up being one small portion of the whole solution. Would VNC really be the way to go for this?

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• Pausing a .gif animation in Google Chrome

  - by Ciaran

  Is it possible to "pause" an animated gif file in Google Chrome? If so, how do I do it? I've tried Esc without luck. I'm aware that other browsers can do this using the Esc key I thought I saw a similar question on here before but couldn't find it - close as dupe if you can find it

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• Need a way to run a script on windows boot up prior to a user logging in

  - by Sharjeel Sayed

  I need to run a custom script which runs when Windows boots up.I know its possible to run it when a user logs in but I want to run it when the system reboots i.e. prior to a user logging in. The OS in question is Windows 2003 and Windows 2000

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• rdiff-backup command to restore

  - by Hulk

  Let say i have a source directory which contains The contents /foo/a /foo/b(These are the files in a directory on a remote system) using rdiff command i make a backup as rdiff-backup [email protected]::/foo backups And a,b are now present in my backups directory.And then i delete file a from the remote system and again i do a sync so my local directory has the file b only. My question is that how do i restore file a if the deletion and sync is done on the same day Thanks..

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• Disable visual system beep on Karmic

  - by pzico

  Some programs are about to make me epileptic with excessive screen flashing/blinking (terminator etc.). In Ubuntu Hardy Heron I could solve the problem by unchecking System-Preferences-Sound-System Beep-Visual system beep. However on Karmic Koala there is no such option. I googled and found many solutions for turning off visual beep/bell. However nothing seems to work. So my question is that what is the exact alternative to disable Visual system beep on Karmic?

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• How to explore the local active directory ?

  - by Quandary

  Question: On Windows7, how can I explore the local active directory ? I mean getting all directory entries I would see when I execute this code: Dim AD As New System.DirectoryServices.DirectoryEntry("WinNT://" + Environment.MachineName & ",computer") I have found a systernals tool, called activedirectory explorer, (http://technet.microsoft.com/en-us/sysinternals/bb963907.aspx) and I run it as complete administrator (root), but it always says "server not working/running". But the server obviously works, since I can query it from .net... and it's definitely local, since I plugged the network connection

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• Create Windows SBS 2008 User Account without Email

  - by Mark Henderson

  Just today I've been handed an SBS 2008 server to do some maintenance on. I've never used SBS 2008 before today, so this is a real noob question: Is it possible to create a user account without creating an associated exchange mailbox? I've been asked to create a new user, but not give them an email address. I guess I could just disable their email account in Exchange, but is there a nicer method?

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• Save certificate to use with lftp

  - by Greg C

  How can I save a certificate for use with lftp? The certificate in question is not accepted by lftp when downloaded from the server. I tried openssl s_client -connect {HOSTNAME}:21 -showcerts from How to save a remote server SSL certificate locally as a file but this returns CONNECTED(00000003) 3074045628:error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol:s23_clnt.c:766: no peer certificate available I am connecting with lftp -p 21 -u {USER} {HOSTNAME} and receive ls: Fatal error: Certificate verification: Not trusted

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• Wireless Password

  - by Campo

  I have a security policy question: I want to know how other admins handle the WIFI password in the office. Does everyone know it? Do you enter it in for the user or guest every time and keep it a secret. I am in camp 2. Just want to know what others do and their reasoning behind it.

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• How to upload stuff to Amazon EC2 Windows instance?

  - by JohnIdol

  I've never used Amazon EC2 - I am thinking to test a few instances for running intensive computation processes I have a requirement for rather than buying real hardware. I am given to understand the thing is quite easy to setup - but I have no clue of how it actually works, in terms of transferring data to my ec2 instances. So the question is how can I upload stuff to my instance? Any help appreciated!

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• Netgear FVS336G as VPN Server

  - by Farseeker

  Hi All, One of our offices has made the move away from PFSense to a Netgear FVS336G. The one feature I can't seem to figure out is its VPN capabilities. I'm confused as to whether this device can act as a IPSEC VPN server, or if it can only act as the client in a Site-Site VPN. The documentation does not make this clear at all, and Google does not seem to have been any help. (Related question: here)

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• How can I centralise MySQL data between 3 or more geographically separate servers?

  - by Andy Castles

  To explain the background to the question: We have a home-grown PHP application (for running online language-learning courses) running on a Linux server and using MySQL on localhost for saving user data (e.g. results of tests taken, marks of submitted work, time spent on different pages in the courses, etc). As we have students from different geographic locations we currently have 3 virtual servers hosted close to those locations (Spain, UK and Hong Kong) and users are added to the server closest to them (they access via different URLs, e.g. europe.domain.com, uk.domain.com and asia.domain.com). This works but is an administrative nightmare as we have to remember which server a particular user is on, and users can only connect to one server. We would like to somehow centralise the information so that all users are visible on any of the servers and users could connect to any of the 3 servers. The question is, what method should we use to implement this. It must be an issue that that lots of people have encountered but I haven't found anything conclusive after a fair bit of Googling around. The closest I have seen to solutions are: something like master-master replication, but I have read so many posts suggesting that this is not a good idea as things like auto_increment fields can break. circular replication, this sounded perfect but to quote from O'Reilly's High Performance MySQL, "In general, rings are brittle and best avoided" We're not against rewriting code in the application to make it work with whatever solution is required but I am not sure if replication is the correct thing to use. Thanks, Andy P.S. I should add that we experimented with writes to a central database and then using reads from a local database but the response time between the different servers for writing was pretty bad and it's also important that written data is available immediately for reading so if replication is too slow this could cause out-of-date data to be returned. Edit: I have been thinking about writing my own rudimentary replication script which would involve something like having each user given a server ID to say which is his "home server", e.g. users in asia would be marked as having the Hong Kong server as their own server. Then the replication scripts (which would be a PHP script set to run as a cron job reasonably frequently, e.g. every 15 minutes or so) would run independently on each of the servers in the system. They would go through the database and distribute any information about users with the "home server" set to the server that the script is running on to all of the other databases in the system. They would also need to suck new information which has been added to any of the other databases on the system where the "home server" flag is the server where the script is running. I would need to work out the details and build in the logic to deal with conflicts but I think it would be possible, however I wanted to make sure that there is not a correct solution for this already out there as it seems like it must be a problem that many people have already come across.

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• Some Windows AD user property cannot be changed by AD user himself, what controls it?

  - by Jimm Chen

  I'm curious with a question I find. An Windows Active Directory user can change his own telephone number, street address etc, but can NOT change his own email-address registered on the AD. Using Python+pywin32 I can also verify this behavior. When trying to change own EmailAddress, I got error General access denied error . I'd like to know where in the AD this allow/deny behavior is defined. Thank you.

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• Running windows 7 on a Mac Pro

  - by Simon

  My question is simple is running windows 7 on a mac pro as the dominat OS a bad idea? im interested in starting some mac programing but still want to do windows based coding. im tossing up between a macbook pro + a desktop or just a Mac pro. Also what development tools are available for mac?

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• Mounting GlusterFS share under www-data user

  - by Roman Newaza

  Problem: After directory is auto-mounted, Web Server has no write permissions to it. Question: How to auto-mount GlusterFS endpoint via /etc/fstab so that mount point belongs to www-data after it's mounted? For now, the mount point belongs to www-data, but after mounting it turns to root. # /etc/fstab foo.com:/st /st glusterfs defaults 0 0 Seams like I cannot define user / group as mount options for GlusterFS, at least I don't see it when man glusterfs. Thanks!

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• Using ClearOS as a gateway/firewall/mailserver

  - by Elzenissimo

  Just installed ClearOS on a PC to act as our firewall firstly and then to act as an internal mailserver. My question is: Can i create a mailserver that then routes the mail through to our ISP mail server without having to contact the ISP and gain MX records etc..? We are a small business (5 PCs + dataserver) and the reason this is interesting is because we need to keep a record of outgoing mails from certain users, as well as spam and virus filtering.

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• Overclocked GPU quantum problem

  - by Thrawn

  Hi all, I overclocked my nVidia GPU, and now I get it to be much faster, but after a ~40% overclock, I start getting "mistakes" on the screen, like wrongly coloured pixels, glitches and the sort. Temperature is still within limits, as I added extra coolers. So my question is: is this a permanent problem which is damaging the GPU or is only something related to the intrinsic quantum mistake rate of processing calculations? Thanks for your opinion :-)

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• Setting up DNS server on VPS on the internet

  - by Nick Duffell

  I have followed multiple online tutorials on setting this up, it is BIND9 on a debian server. It is the only server I have, so it is acting as both ns1, ns1, and the server they domain name should point to itself. It all appears to be working and when I dig the domain name from the server itself I get (what seems to me) the correct output: ; << DiG 9.7.3 << theonetekkit.com.au ;; global options: +cmd ;; Got answer: ;; -HEADER<<- opcode: QUERY, status: NOERROR, id: 18593 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2 ;; QUESTION SECTION: ;theonetekkit.com.au. IN A ;; ANSWER SECTION: theonetekkit.com.au. 3000 IN A 103.4.17.189 ;; AUTHORITY SECTION: theonetekkit.com.au. 3000 IN NS ns1.theonetekkit.com.au. theonetekkit.com.au. 3000 IN NS ns2.theonetekkit.com.au. ;; ADDITIONAL SECTION: ns1.theonetekkit.com.au. 3000 IN A 103.4.17.189 ns2.theonetekkit.com.au. 3000 IN A 103.4.17.189 ;; Query time: 15 msec ;; SERVER: 103.4.17.189#53(103.4.17.189) ;; WHEN: Wed Nov 7 02:12:58 2012 ;; MSG SIZE rcvd: 121 When I dig it from another server / computer, however, I am getting a problem: ; << DiG 9.7.3 << theonetekkit.com.au ;; global options: +cmd ;; Got answer: ;; -HEADER<<- opcode: QUERY, status: SERVFAIL, id: 56637 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;theonetekkit.com.au. IN A ;; Query time: 22 msec ;; SERVER: 103.4.16.166#53(103.4.16.166) ;; WHEN: Wed Nov 7 02:12:40 2012 ;; MSG SIZE rcvd: 37 I have given it more than enough time for the records to be refreshed since setting up the DNS server, so I don't know what would be causing this. Any ideas? Thanks

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• Unable to locate a specific shape in Visio

  - by Gnanam

  I'm trying to create (convert) a Visio architecture diagram from an existing image which is available in the format of JPG extension. My question is, in this complete architecture diagram which I'm trying to convert, there is one specific shape/symbol which I couldn't able to locate/find in the Visio stencil. Can somebody help me in locating this shape/symbol either inside Visio stencil or from any external stencils/symbols? NOTE: I'm using Visio Professional 2013.

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• XP OEM licensing when reinstalling Windows XP

  - by mindas

  My wife has managed to buy a Dell laptop she was using at her ex-employer that just went bust. The problem with it is the OS (Windows XP) which takes ages to boot and is generally disproportionally slow to the hardware of the machine. So my aim is to sacrifice a day and reinstall it. The problem I am slightly worried about is the licensing/registration/activation hell. Apart from the sticker (with WinXP license key), the laptop has no other paperwork proving this license is legitimate. I believe this was originally an OEM license. Unfortunately, I don't have the the installation CD. This computer also has MS Office installed (which I would like to retain) but it none of MS Office apps would launch due to some obscure error complaining about lack of free disk space (which computer has plenty of). I have absolutely no clue what kind of license this MS Office was. And because the company has gone into the administration, there is no way of getting this information nor installable media. I believe that by buying the hardware I have also acquired the software which I can use as I see fit. Correct me if I'm wrong. Above said, my question would be: What is the easiest way of reinstalling the XP? By easiest I mean avoiding spending my time to prove Microsoft support I've got the right to use the software (insert your computer says noooo joke here) but still being able to get to fresh virgin activated legal state of the XP. I used to work as a sysadmin many years ago so I am not afraid of any technical difficulties. The same question applies to MS Office. I imagine the process would consist of backing up all the data, pulling some bits from the registry and using that on the fresh install. As for reinstall I'd expect to use some sort of OEM Windows repair CD from Dell, right? Are those freely available? My other box (HP) has such a thing and it can't be used on any other brand. I'm sure somebody had to go through this licensing hell and could share his/her tips. Thanks in advance.

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• Transferring a Windows 8 license and proper un- and reinstallation

  - by Kiwi

  Long story short I have two computers: a laptop and a desktop computer. Both have Windows 7 on them. I buy the Windows 8 Pro upgrade. To see if it screws up anything, I install it on my laptop as a guinea pig. I intend to use Windows 8 for my main computer, my desktop, but I want to test it on the laptop, so I know I don’t risk losing access to my desktop and the data on it. I never use my laptop, and only used it, because it already has a Windows 7 installation on it. The problem At some point, I must have entered the license key on my laptop, because when I go to the activation screen on my desktop, I get this: Uh-oh. I can’t use the key on my desktop. Now how the hell do I transfer the key from my laptop to my desktop computer? Answers and suggestions so far Let’s just say that I tried everything possible to get some answers on this matter. The best response I got from Microsoft is this: To install Windows 8 on your desktop, do the following: Uninstall Windows 8 on your laptop Afterwards, install Windows 8 on your desktop If it won’t activate, call product activation at (...) I am not a fan of that last point. The error message does allude to such a solution, however: If you’ve reinstalled Windows or made changes to your hardware recently, you may be able to use your current key. The question My main question is this: has anyone been in a similar situation, and if so, what did you do to resolve this? Failing that, what is the proper way to uninstall the Windows 8 installation on my laptop, and reinstall the Windows 8 installation on my desktop? Ad 1 I have already tried using the “reset” feature on my laptop, but that only resulted in a new Windows 8 installation that was already activated. But which is the right way to uninstall the installation in a way that allows me to use the license key on the desktop computer? Ad 2 Which is the proper way to reinstall the Windows 8 installation on my desktop computer? Why do I even have to reinstall it in the first place? I won’t get around to do this, until my USB key with 3.0 support arrives in the mail, but it is going to be a while, until I find a assuaging response to the best way to go about this anyway.

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