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• Creating a file server - How can I use a large VHD file in Hyper-V? (700GB)

  - by barfoon

  Hey everyone, After a few discussions (here, here, and here), I am still unable to create a simple VM that will be used as a fileserver hosted on my Hyper-V box. I have created a fixed 700GB SCSI drive (.vhd file), as I have learned an IDE drive of this size is not possible. Not to sound too cynical, but its blown me away at how much trouble its been to create a large amount of space and start using it. What is the best way to create a fileserver with a drive of this size hosted on Hyper-V Server 2008, and how can I get it going??? Inclusion of OS, driver, integration tools etc, anything you feel is required would be greatly appreciated. Extra information I am using the stand-alone version of Hyper-V server, and not Windows Server 2008. I have tried loading the Linux Integration Tools (linked in the comments of the last link above) onto a SUSE 11 VM and the installation fails, the machine cannot see the vhd at all. Thanks very much,

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• How do I set up a bridge on Ubuntu GNOME 14.04

  - by NJRandy

  I found a guide for setting up a bridge in Fedora and was trying this: $ nmcli connection delete p33p1 $ nmcli connection add con-name br0 type bridge ifname br0 autoconnect yes $ nmcli connection add con-name p33p1 type bridge-slave ifname p33p1 master br0 autoconnect yes I found that $ nmcli con delete uuid [uuid here] accomplished the first step. nmcli connection does not have an 'add' action in this distribution. Please help me do the 2nd and 3rd steps. Context: I am trying to set up a virtual machine. I believe this is a necessary step for the VM to access my network and the internet. Please feel free to correct me if I am wrong! BTW, I am a linux newbie, tech oldie. Thank you.

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• Best Usage of Multiple Computers For a Developer

  - by whaley

  I have two Macbook Pros - both are comparable in hardware. One is a 17" and the other a 15". The 17" has a slightly swifter CPU clock speed, but beyond that the differences are completely negligible. I tried a setup a while back where I had the 17" hooked up to an external monitor in the middle of my desk with the 15" laptop immediately to the right of it, and was using teleport to control the 15" from my 17". All development, terminal usage, etc. etc. was being done on the 17" and the 15" was primarily used for email / IM / IRC... or anything secondary to what I was working on. I have a MobileMe account so preferences were synced, but otherwise I didn't really use anything else to keep the computers in sync (I use dropbox/git but probably not optimally). For reasons I can't put my finger on, this setup never felt quite right. A few things that irked me was the 15" was way under-utlized and the 17" was overutilized having 2 laptops and a 21" monitor all on one desk actually took up lots of desk space and it felt like I had too much to look at. I reverted back to just using the 17" and the external monitor and keeping the 15" around the house (and using it very sparingly). For those of you who are using multiple laptops (or just multiple machines for that matter), I'd like to see setups that work for you for when you have 2 or more machines that gives you optimal productivity and why. I'd like to give this one more shot but with a different approach than my previous - which was using the 15" as a machine for secondary things (communication, reading documentation, etc. etc).

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• Ubuntu 64bit Black Screen on Minecraft

  - by Signify

  I have tried posting on the forums, but I really need help (I'm a server admin and really don't want to have to switch to Windows just to run Minecraft). Anyhow, I originally was running openjdk6 as I was told that 7 was unstable and was getting periodical lag spikes while walking (at least once every 3 seconds the screen would freeze for a tenth of a second). After that, I attempted to install Sun's Java JDK7 (I couldn't get ahold of 6 without signing up for Oracle's newsletters). Upon attempting to run Minecraft, I got a black screen after logging in with this error message: 27 achievements 182 recipes Setting user: Thunder7102, -1618112820878091307 Exception in thread "Minecraft main thread" java.lang.UnsatisfiedLinkError: /home/noiro/.minecraft/bin/natives/liblwjgl.so: /home/noiro/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch) at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1939) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1864) at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1825) at java.lang.Runtime.load0(Runtime.java:792) at java.lang.System.load(System.java:1059) at org.lwjgl.Sys$1.run(Sys.java:69) at java.security.AccessController.doPrivileged(Native Method) at org.lwjgl.Sys.doLoadLibrary(Sys.java:65) at org.lwjgl.Sys.loadLibrary(Sys.java:81) at org.lwjgl.Sys.<clinit>(Sys.java:98) at org.lwjgl.opengl.Display.<clinit>(Display.java:132) at net.minecraft.client.Minecraft.a(SourceFile:184) at net.minecraft.client.Minecraft.run(SourceFile:657) at java.lang.Thread.run(Thread.java:722) Now, this got me fed up, so I tried to install a Windows 7 virtual machine through virtualbox, I gave it 256mb of graphics memory with 2D and 3D acceleration and 3GB of RAM. I installed Java JDK7 for Windows (which does work from experience on my other Windows 7 partition). Once again, a black screen after login. What the heck is going on guys? My System Specs: Ubuntu 12.04 64bit Fully Updated running Gnome3 Nvidia GTS 450 1.3GB OC'd AMD Athlon II 4x 2.8Ghz 6GB of RAM So, what do you think?

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• Am I an idealist?

  - by ereOn

  This is not only a question, this is also a call for help. Since I started my career as a programmer, I always tried to learn from my mistakes. I worked hard to learn best-practices and while I don't consider myself a C++ expert, I still believe I'm not a beginner either. I was recently hired into a company for C++ development. There I was told that my way to work was "against the rules" and that I would have to change my mind. Here are the topics I disagree with my hierarchy (their words): "You should not use separate header files for your different classes. One big header file is both easier to read and faster to compile." "Trying to use different headers is counter-productive : use the same super-set of headers everywhere, and enforce the use #pragma hdrstop to hasten compilation" "You may not use Boost or any other library that uses nested directories to organize its files. Our build-machine doesn't work with nested directories. Moreover, you don't need Boost to create great software." One might think I'm somehow exaggerated things, but the sad truth is that I didn't. That's their actual words. I believe that having separate files enhance maintainability and code-correctness and can fasten compilation time by the use of the proper includes. Have you been in a similar situation? What should I do? I feel like it's actually impossible for me to work that way and day after day, my frustration grows.

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• How to ignore an error in Powershell and let it continue?

  - by Jake

  I am trying to see if a process is running on multiple servers and then format it into a table. get-process -ComputerName server1,server2,server3 -name explorer | Select-Object processname,machinename Thats the easy part - When the process does not exist or if the server is unavailable, powershell outputs a big ugly error, messes up the the table and doesn't continue. Example Get-Process : Couldn't connect to remote machine.At line:1 char:12 + get-process <<<< -ComputerName server1,server2,server3 -name explorer | format-table processname,machinename + CategoryInfo : NotSpecified: (:) [Get-Process], InvalidOperatio nException + FullyQualifiedErrorId : System.InvalidOperationException,Microsoft.Power Shell.Commands.GetProcessCommand How do I get around this? If the I would still like to get notified if the process isn't available or Running.

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• How to to specify network address for a dhcp client

  - by drecute

  I have setup and configured a DHCP server on a sparc running Solaris 10. Now I want to test the DHCP server by creating a DHCP client on another computer running Solaris 11. I would like to know, how do I specify a network address for a dhcp client such that its generated ip address is within a specific subnet. For example: The DHCP server host = 172.1.1.1 So I want the client machine to have an IP Address in the range of 172.1.1.1 255.255.255.0. Please help me.

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• show php error message on IIS 7

  - by Max

  I am using IIS as a webserver on my development machine for PHP webdevelopment. Or at least, I am trying to. When there is a syntax error in a PHP script and I open that file in my webbrowser, I just get an 503 "internal server error" and the default IIS error page for this error. Some browsers dont open that file at all, possibly because of the 503 HTTP Response Header. I would like IIS to act in that case just like the apache webserver: display the PHP file with the error anyway, so that the error message gets printed out. How can this be done? EDIT: PHP settings: display_errors is on and error_reporting is set to E_ALL

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• recent unreliable wireless connection

  - by gabkdlly

  Recently, my internet connection over wireless ( via a Netgear KWGR614 router ) has become unreliable, on both a Dell laptop running Ubuntu 10.04 as well as my Desktop running Ubuntu 10.10 . The problem does not seem to occur on a laptop running Windows Vista, nor on a Desktop running Windows 7 ( this machine is connected with an ethernet cable ). The problem does not seem to occur on my Openmoko Freerunner ( running Android 1.5 ), though I hardly ever use this device to connect over WLAN, so the problem may have just slipped by. On my main Ubuntu Desktop, I have tried the following wireless devices: a Longshine PCI card ( an old device with an RTL8180L chip ) a D-Link DWL-510 PCI card ( this device threw warnings in dmesg ) a USB device from MSI ( US54EX ). Usually my wireless network shows up in the network manager with a normal signal strength, even when the connection speed is slow or the connection gets reset ( asking me to click connect to re-authenticate my wireless connection ). I have observed this problem with a Netgear KWGR614 Router ( with the manufacturers firmware ), as well as with a TP-LINK TL-WR741ND router running OpenWrt. Taking a look at my routers logs, I find many instances of the following line: Tuesday,04 Jan 2011 03:53:01 [TCP SYN Flood][Deny access policy matched, dropping packet] I know that the Netgear router is susceptible to denial of service attacks, as I have previously been able to disrupt its operation by putting an nmap scan into a while loop. I use WEP or WPA to encrypt the wireless network. Is it possible that someone is jamming my signal ?

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• Multiple Graphics cards - Non Multi-Display Setup

  - by Alan Thomas

  Is it possible for me to utilize the processing capabilities of multiple graphics cards, even if I'm only using one monitor? I recently bought a new AMD graphics card, fairly top of the line. I also have a two year old, decent nVidia card. They're obviously very different cards. I don't really mind for gaming because my current card can handle most games fine by itself. I'm concerned about video editing programs such as Adobe Premiere and After Effects. Would the system be able to utilize the power of both cards to, say, render a video? I have both drivers still installed on my machine. And because there is only one monitor connected to my current graphics card (AMD) the nVidia would be connected to no display. So I am wondering whether it would or could be utilized in some way to help in processing video. Thanks!

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• Setting the date format in Atlassian Crucible

  - by pwan

  When I set up a review in Atlassian Crucible, and I set a date, it displays it in DD/MM/YYYY I'd like to switch that over to MM/DD/YYYY, but I don't see anywhere in the configuration to switch that. The closest setting I see is for the timezone, which I have set to EST. I have Crucible running on a CentOS 6.2 machine that's set to UTC I'm using Crucible version 2.7.14 Build:20120612060728 2012-06-12 My locale is currently set to en_US.UTF-8 > locale | grep LC_TIME LC_TIME="en_US.UTF-8" Can someone point out how I can switch the date format in Crucible ?

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• remote symbolic link / junction

  - by Blueberry

  Might be a pretty obvious one but have had some trouble finding solid answers. I have a directory on a windows network share containing different versions of an application. I would like to have a link to one of these called 'current', which will be a symbolic link to the directory sitting beside all the other versions and pointing to one of these. Creating this link seems to be more of an issue than I would have thought. Looks like symlink only shows the link on the same machine as where it was created (which is not going to work for obvious reasons) and junction needs to be run on the server which is practically impossible due to various restrictions. What would be the best way to go about this? Would I just need to copy the files twice or can I have a symbolic link which can be created and accessed remotely?

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• Can't connect to IIS7 on one of my machines

  - by user38974

  Hello, I have 2 computers, both running Win7 Professional x64. Computer "A" (192.168.0.10) is my work machine, it contains my tools etc. Computer "B" (192.168.0.15) is supposed to be my build server / web server for my projects I've installed IIS on "B", and installed IIS7 remote manager on "A". I'm trying to connect from A's IIS7 Manager to B's IIS but I fail. I have little knowledge of IIS, and I feel that's the main reason. I can ping B from A and get positive results so the machines do see each other. A and B are in the same workgroup but not in a domain (if that matters) - they're in my home network. What do I need to do to "see" B's IIS?

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• Restrict access to SSH for one specific user

  - by j0nes

  I am looking for a way to secure my servers with the following setup: I have a server where I can log in via SSH. The main account there (named "foo") is secured by a keybased login with password. I have another user account (named "bar") that I use to log in via cronjobs running on other servers - this one also has keybased login, but without password. Now I want to limit access to this machine for the "bar" account. The account should only be accessible via known IPs. However, the "foo" account should not be affected by this, this one should basically be accessible from any IP. How can I manage this? Or is there a simpler solution to everything?

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• What is a good solution for an adaptive iptables daemon?

  - by Matt

  I am running a series of web servers and already have a pretty good set of firewall rules set up, however I'm looking for something to monitor the traffic and add rules as needed. I have denyhosts monitoring for bad SSH logins, and that's great - but I'd love something I could apply to the whole machine that would help prevent bute force attacks against my web applications as well, and add rules to block IPs that display evidence of common attacks. I've seen APF, but it looks as though it hasn't been updated in several years. Is it still in use and would it be good for this? Also, what other solutions are out there that would manipulate iptables to behave in some adaptive fashion? I'm running Ubuntu Linux, if that helps.

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• Weird windows quirk when renaming file

  - by Roy Rico

  Hi, I am finding when I try to rename a file in windows 7, i typically select the file i want to rename, hit F2 (rename) and type the new name. I've been getting this weird bug which the while file name gets selected again, sometimes right in the middle of me typing. I can sit there and watch it reselect the entire filename every second or so as if someone is invisibly hitting control+a while type. I have tried making sure that my keys aren't being pressed, and also have even gotten a new keyboard and this problem still consists. I know it'll probably be a long shot, but just hoping someone's seen this issue and has a resolution. UPDATE: This is on a desktop machine, not a laptop, so there's no issue with Trackpad.

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• Cannot Boot, How to recover

  - by Kendor

  Am running 11.10 64-bit with Gnome-shell. Something happened late Friday whereby my machine never gets to the login screen. I do get to an Ubuntu splash logo, after that I get a text screen that it hangs on. The screen is referring to issues with mounting various network resources, including VMWare and also some references to my NAS that are in fstab. If I hit "esc" I can get to the GRUB menu and into recovery console. If I try to do a file system check, I run into a similar error screen that I see when trying to boot normally. A possible clue here is that during my last good session I made some mods to the /etc/hosts file to reference another system which I'm connecting to with Synergy. I don't believe I have hardware issues as I'm able to boot properly with a Live USB and connect to my network/Internet. A few more tidbits. I have regular Dejadups backups on my NAS. I have a good Clonezilla whole drive image which is 4-6 weeks old.. My home is encrypted. I thought I'd try blowing away my hosts file via live USB, but when I mounted the hard drive everything was read-only and I couldn't figure out how to replace it. P.S. I logged in via CLI and modded the host file to remove the entry I'd made, to no avail. System continue to gets stuck on the following: CIFS VFS: default security mechanism requested. The default security mechanism will be upgraded from ntlm to ntlmv2 in kernel version 3.1s Would love some sober advice on how to attack this.

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• "ssh_exchange_identification: Connection closed by remote host lost connection" when running cron job

  - by grautur

  I have a Ruby script that connects to a remote machine via ssh and executes a command. The script runs fine when I just run it in my terminal. In my crontab, I have 1 * * * * /bin/bash -l -c 'ruby myfile.rb' and if I go ahead and run /bin/bash -l -c 'ruby myfile.rb', everything executes fine. But when cron itself executes the job, I get a ssh_exchange_identification: Connection closed by remote host error. What's the cause of this? How do I fix it?

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• Remote desktop from internet to windows 7 box via linksys router

  - by larryq

  Hi everyone, I have a linksys wrt54g router and a windows 7 box at home I'd like to be able to remote desktop into from work. Would it be possible for someone to point me in the right direction on what I need to configure to get this working, both on the router and on the win 7 box? I'm sure there are a lot of little steps involved. Ideally I'd like to set it up so that only my work IP address can get through to the win 7 machine. Thanks very much for any pointers and links!

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• Sometimes tabs in notepad++ won't make a new window when dragged out

  - by darenw

  Long-time Linux user on a Windows 7 machine, using Notepad++ to edit multiple text files. Sometimes I can drag a tab out of the notepad++ window onto the desktop to get a new notepad++ window. This is a very nice feature. But sometimes when I try to drag a tab out, nothing happens. I don't see what is different about these tabs or the files they contain. It is repeatable; the same tab still won't make a new window. I'm not familiar enough with Windows and its strange ways to begin to guess what is going on, unless it's a bug. How can I make all tabs draggable-to-new-windowable, no exceptions?

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• Accessing a shared folder using other credentials with Windows 7

  - by Nicolas Buduroi

  I was at a client office trying to connect to a shared drive on their network but was greeted by a "you do not have permission to access" error! Couldn't find any way to enter the required credentials as this message didn't had any other options. Tried to map the drive, selected the option to enter the correct credentials (with \\HOST\user) but it wouldn't work at all. The worst thing in all of this is that my coworker who is using OS X has been able to connect to that drive without any problem, he clicked on it, entered the credentials and could open the folder! The folder is shared by a Windows Small Business Server 2008 machine.

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• How can I reduce the CPU usage of Offline Files?

  - by Diego

  Whenever I have the Offline Files service running, there is a constant 25% CPU usage on svchost.exe (this is a quad core, so that means it's using up one core). This, in turn, triples the power consumption and keeps the machine hot... I do have several GB synchronized (music collection), but they are not changing at all, in either side. Am I misusing this feature? Is there anything I can configure to keep it down when there's nothing to do? Or should I forget about it and synchronize big folders manually?

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• How to enable RDP to a Server 2008 R2 on another network? VM network

  - by Saariko

  I have a W2008 R2 installed on a different network (I am on 192.168.0.x - new server on 192.168.3.x) I had trouble ping and RDP to it. I disabled the firewall to test the connection: and that opened the ping feature but I still can not RDP to that machine. the allow remote access is enabled As per sinni80 idea - Here is the error message The networks are divided by a Fortigate 60-B router - 2ndy interface for the gateway is 192.168.3.254 (and pingable from all) any to any rule on both networks is in place. As per Joe Schmoe idea - I am able to RDP to 192.168.3.1 from 192.168.3.3 (which is on the same network) Data to add: - The servers are on a VM host, each of the servers has 2 nics one is DHCP enabled into the 192.168.0.x network 2nd is static IP in the 192.168.3.x -- Further information: The network 192.168.0.x - are on a domain network (active Directory) The network 192.168.3.x - are grouped in a workgroup What should I check more please?

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• What would be a good topic for research on "edge of multiple processors / computers programming" topic?

  - by Kabumbus

  This is a subjective discussion so we can express our dreams and hopes here. A "topic" must be like a task with point to have as end result a software poduct. A "topic" must be mainly about "Software engineering", "Algorithm and data structure concepts" and perhaps "Design patterns". I mean let us try to look what is not already there? What can be developed in fiew month and give a breakthrue / start a new leap / show somethig not realized before in science of f multiple computers programming? What i see is already there: LAN / wire and other infrastractural programms for connecting on device level MPI/ Bit torrent/Jabber protocols / APIs / servers for messaging on top Boost and analogs on evry OS in most languages for multithreading there are lots of CUDA like on computer frameworks for fast calculating on computers GPUs What I personally do not see out there is a crossplatform framework for multiple processes interaction. Meaning one that would allow easy creation of multyple processes running in paralell inside one hoster app on one machine. In level not harder than needed for threads creation (so no seprate server apps - just one lib doing it all) Is there ny such lib and what can you propose for research topic?

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• SQL Server Express 2005 SP3 Update Keeps Coming Back (KB995706)

  - by Xavier

  Hi Guys, I have installed the above update through Windows Update. The update went through, reported a successful installation, and then straight after that it came back as an available update. I have done it a few times and my update log now contains multiple successful installations of KB995706. I have tried to uncheck it in the list of updates but it keeps coming back as well. The machine is a Server 2008 RC2 Standard. It's got SQL Server 2005 Express as well as SQL Server 2008 Standard. In the Event Log: Installation Successful: Windows successfully installed the following update: Microsoft SQL Server 2005 Express Edition Service Pack 3 (KB955706) followed by Installation Ready: The following updates are downloaded and ready for installation. To install the updates, an administrator should log on to this computer and Windows will prompt with further instructions: - Microsoft SQL Server 2005 Express Edition Service Pack 3 (KB955706)

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