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• Stop Time Sync Between Host and Guest - VirtualBox

  - by KoopaTroopa

  So I've been googling and I've tried the following commands. I want to stop the virtual machine from having the correct time and just to stick with what time it last recorded. The host operating system is Ubuntu 12.04 and the guest is Windows XP. I've turned time syncing off in XP so it won't do that when I connect to the Internet. However it does appear to take the time from ubuntu and set it as it's own. VBoxManage setextradata XP11 “VBoxInternal/TM/WarpDrivePercentage” 200 vboxmanage setextradata XP11 "VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled" "1" Both commands haven't work as the time is always set to the exact same as Ubuntu's. I've located the extradata entry in the virtualbox XML file. It states both changes that the commands above are set to make. But of course it still hasn't stopped updating the time. <ExtraData> <ExtraDataItem name="GUI/LastGuestSizeHint" value="1152,864"/> <ExtraDataItem name="GUI/LastNormalWindowPosition" value="74,52,1152,911"/> <ExtraDataItem name="VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled" value="1"/> <ExtraDataItem name="&#x201C;VBoxInternal/TM/WarpDrivePercentage&#x201D;" value="200"/> </ExtraData>

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• Windows 7 freezes on boot screen

  - by this is a dead end

  There was some update that required me to restart my computer, so I did. when it restarted, it stays at the Windows boot screen forever, the screen that says "Starting Windows" and has that Windows logo in the middle. I've tried the start up repair program that shows up when I click F8 when the computer starts. And tried system restore but, it says it has restored windows successfully but it still freezes on the boot screen when I reboot it. When I try starting it in safe mode, it gets to the blue Windows background, the one with the logon screen, then says "Failure configuring Windows updates. Reverting Changes. Do not turn off." Then after a while it reboot by itself. Just noticed, the logo animation on the boot screen is still animated. So it's not completely frozen.

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• snmptrap and snmptt - authcommunity not found

  - by sabs6488

  I am trying to configure snmptt to translate the snmp traps received and handle them as passive checks in icinga monitoring server as described here . after doing the changes to the snmptrapd.conf . I am trying to restart the service and I see authcommunity : command not found, traphandle : command not found . my understanding is the authcommunity and traphandle are just configuration directives which will tell snmptrapd about the community string to use and the traphandle script to be called. It would be helpful if someone can help me understand better. Thanks, sabs

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• My computer gets hosted when using 3G

  - by WeaklyTyped

  I recently activated 3G(UMTS) connection on my cellular network. I use Nokia S60 phone as a modem while connecting from Scientific Linux 6. While I am able to access net pretty well, the problem is my computer gets hosted. By using ip-address in a web-browser, anyone can access my localhost (running apache), this never happens with my wireline (ADSL) connection. Furthermore, even the Shell prompt changes from: [mach2@localhost ~]$ to [[email protected] ~]$ where XX.XX.XX.XX is the IP of the 3G connection. The very thought of putting my machine 'in the wild' is disconcerting. How can I rectify the situation without disabling services like apache, sshd and others?

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• How can a driver change the kernel page table?

  - by Naruto

  I am encountering an issue with kernel memory. When my driver finishes running, the other processes in kernel fail to run, for example, I run ls, the command crashes the kernel with error "Corrupted page table" at a specified address. I do not know whether the page table of my driver relates to the page table of other process. How can my driver changes the page table of the other processes? And how the driver of a process relates to the kernel page table? As I know when the driver runs, it will be switched to kernel context. Kernel has its own page table and the driver has it own one. What is the relation among the kernel page table, the page table of my driver and the page table of the other processes when it runs in kernel context?

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• Locale number formatting issue windows 2008

  - by kris

  On a project we have multiple servers running windows 2008. The servers are using the Russian locale. We have several programs that use floating point numbers but the fractional part of the number on SOME servers is getting truncated. Through the regional settings each machine has: Locale: Russian Current Location: United States Decimal Symbol: . (period) I've tried distributing the changes through "Copy Settings" and even though the procedure works it seems like the settings aren't actually being propagated. So next I went into the registry. There is a key called "sDecimal" and in all cases on all servers the value in the key is '.' There is no difference that I can find between the servers that DO have correct decimal formatting and DO NOT. Any advice on where I can look for a problem like this?

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• Black Screen on pressing back button in libgdx

  - by user26384

  In my game when i touch on advertisements and press back button to return on game the i am getting a black screen. I referred this link. I tried to change IosGraphics.java but the change is not reflected in monotouch project. I did the following : Extracted nightly.zip and opened gdx-backend-iosmonotouch-sources From there I changed IosGraphicsjava. I then made a new jar file gdx-backend-iosmonotouch.jar and replaced it with original jar file in the nightly folder. Compressed all the files from nightly folder in .zip file. Used this .zip file to make a new project throuch gdx-setup-ui.jar. I tried to open my project in monotouch and from com-gdx-backendios.dll i found that the changes in IosGraphics are not being reflected. Am I missing something? How do I solve this? I even tried to open gdx-backend-iosmonotouch-sources.jar with winrar and edit IosGraphics.java and save it. Even this didn't work.

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• How to prevent Network Manager from auto creating network connection profiles with "available to everyone" by default

  - by airtonix

  We have several laptops at work which use Ubuntu 11.10 64bit. I have our Wifi Access Point requiring WPA2-EAP Authentication (backed by a LDAP server). I have the staff using these laptops when doing presentations by using the Guest Account. So by default when you have a wifi card, network manager will display available Wireless Access Points. So the logical course of action for a Novice(tm) user is to single left click the easy to use option in the Network Manager drop down list... At this point the Staff Member (who is logged in with the guest account) expects to just be able to connect and enter any authentication details if required. But because they are using the Guest account, they won't ever have admin permissions (nor do I want them to), and so PolKit kicks in with a request for admin authorisation. I solved this part by modifying the PolKit permissions required to allow all users to create System Network Connections... However, because these Staff members are logging onto the Wifi Access Point with Ldap Credentials and because the Network Manager is now saving those credentials as a System Connection, their password is available for the next guest user session (because system connection profiles are stored in /etc/NetworkManager/system-connections.d/* ). It creates system connections by default because "Available to all users" is ticked by default when you quickly connect to a new wifi access point. I want Network Manager to not tick this by default. This way I can revert the changes I made to Polkit and users network connection profiles will be purged when they log out.

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• Advice and resources on collaborative environments

  - by Tjaart

  I need some advice on collaborative software environments. More specifically, I am looking for books and reference materials that can aid me in understanding team and code structures and the interactions thereof. In other words books, blogs or white papers explaining: Different strategies for structuring teams that share common code between each other but have distinct individual functions? To summarise my question I would like to know what would be a good source of knowledge if I were to set up teams in an organisation that shared code but each unit still remained autonomous. I have done some research on this subject and explored: code review tools, distributed VCS, continuous integration tools, Unit testing automation. The tough part about implementing these tools are to determine where a good place would be to start, which tools are low hanging fruit, which tools or methods provide higher success rates. If someone asks me about code quality reference I point them to Code Complete. I am looking for an equivalent guide on software team structures and tools to make this equation work better. I realise that this question is quite vague but it arose as "we need to share code between teams without breaking each others stuff and causing management headaches and reams of red tape" The answer is definitely not simple and requires changes on many levels, hence the question. If the question is too vague please vote to close or delete. I would accept any good starting point as an answer.

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• What could have caused a large traffic drop from Google in early May?

  - by Scott Schluer

  I have a website (www.equispot.com) that has been indexed for almost 2 years in Google. I managed to get myself on the first page (average position 6-8) on Google for my target keyword of "horses for sale" and held there pretty solidly for months. Suddenly, with no changes to the site, traffic from Google dropped like a rock in early May. I slowly fell in position until now I'm sitting at the bottom of page 4. I have never hired an SEO firm, have not used any "black hat" techniques that Google would have penalized me for in their May update, etc. I'm not familiar enough with SEO to know how to look at link profiles, etc. to tell if there's something wrong. I've run my site through a DNS checker and it came back with no errors. Google Webmaster Tools shows no messages or notices of any kind, just a drop in traffic. GWT also shows only 2 server errors and 1 404. Is there anyone who can tell me by quickly checking my domain if there's an obvious reason that my traffic would have fallen so far, something that I can fix?

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• Squid 2.7 in offline_mode yet tries to contact DNS servers to resolve addresses

  - by William C

  I installed Squid 2.7 to act as a web cache on my laptop, so that I can browse previously-visited sites when I don't have WiFi. Except http_access allow all, I've made no changes to the default squid.conf configuration. When I turn offline_mode ON and disconnect from the Internet, and then I visit sites, I encounter The following error was encountered: Unable to determine IP address from host name for whatever.sitename.com The dnsserver returned: Timeout on any site I visit. What settings do I need to add to squid.conf so I can browse sites offline?

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• What music streaming app fits my needs on Ubuntu?

  - by Jim

  I'm looking for an application to stream Internet radio on Ubuntu. I like listening to Radio Paradise while I work. Right now, I'm using Amarok. "Movie Player" sometimes refuses to open the stream, and VLC doesn't keep its window title updated with the currently playing track. Amarok has nice translucent notifications when tracks change, but track changes in streams don't trigger the notifications. Mostly, I want something that reliably opens streams and makes it easy to see the name of the track that's playing. If it has a built-in directory of streaming radio stations, that would be a big benefit.

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• Apache Virtual host Subdomains points to same directory

  - by Jakobud

  I have setup subdomains using Apache before and have never really ran into any big problems. But with this (I believe Centos) server that is one of my clients, I'm not understanding what I'm doing wrong. Here is the .conf that apache is loading: Listen 80 NameVirtualHost *:80 <VirtualHost *:80> ServerName www.thedomain.com DocumentRoot /u1/thedomain.com/public RailsEnv production </VirtualHost> <VirtualHost *:80> ServerName subdomain.thedomain.com DocumentRoot /u1/subdomain.thedomain.com/public_html </VirtualHost> When I access either the primary or subdomain addresses, they both point to the primary www.thedomain.com content. Any thoughts? UPDATE: Yes I did a configtest and graceful after making the changes.

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• ftp connects but files aren't visible browsing

  - by YsoL8

  Hello If this should be on that other site, please don't shoot me, as I can't remember the name or the url. I have an ftp account in Dreamweaver that connects to the remote site and appears to be uploading files as normal. But when I browse to the location I can't see any new files or changes to the index page. (I've uploaded index.php and connect.php). I'm getting a 404 page. I suspect the host directory is wrong, but looking at the file tree, I can't see the folder I'm supposed to be using, so I'm uploading to the apparent site root. Any guidance on this?

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• Map localhost to IP address on Windows XP & Internet Explorer 7+?

  - by roblocop

  I'm trying to map 'localhost' to an IP address elsewhere on the network, say '10.0.1.1' for example. I've tried editing my hosts file, changing the entry from: 127.0.0.1 localhost to 10.0.1.1 localhost with no luck. The closest I've gotten is using DNS spoofing via Charles. Adding a DNS spoof entry mapping the host name 'localhost' to '10.0.1.1' works fine in Firefox, but fails in Internet Explorer, basically showing IE's 404 page. I'm wondering if there's some specific setting or way I can get DNS spoofing to work in IE? The main issue I'm trying to resolve is that our development environment points to 'localhost' and rather than setting the dev env up in a legacy Windows laptop to try and debug, point to a server that has it all setup and I can make the changes remotely.

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• Reflection velocity

  - by MindSeeker

  I'm trying to get a moving circular object to bounce (elastically) off of an immovable circular object. Am I doing this right? (The results look right, but I hate to trust that alone, and I can't find a tutorial that tackles this problem and includes the nitty gritty math/code to verify what I'm doing). If it is right, is there a better/faster/more elegant way to do this? Note that the object (this) is the moving circle, and the EntPointer object is the immovable circle. //take vector separating the two centers <x, y>, and then get unit vector of the result: MathVector2d unitnormal = MathVector2d(this -> Retxpos() - EntPointer -> Retxpos(), this -> Retypos() - EntPointer -> Retypos()).UnitVector(); //take tangent <-y, x> of the unitnormal: MathVector2d unittangent = MathVector2d(-unitnormal.ycomp, unitnormal.xcomp); MathVector2d V1 = MathVector2d(this -> Retxvel(), this -> Retyvel()); //Calculate the normal and tangent vector lengths of the velocity: (the normal changes, the tangent stays the same) double LengthNormal = DotProduct(unitnormal, V1); double LengthTangent = DotProduct(unittangent, V1); MathVector2d VelVecNewNormal = unitnormal.ScalarMultiplication(-LengthNormal); //the negative of what it was before MathVector2d VelVecNewTangent = unittangent.ScalarMultiplication(LengthTangent); //this stays the same MathVector2d NewVel = VectorAddition(VelVecNewNormal, VelVecNewTangent); //combine them xvel = NewVel.xcomp; //and then apply them yvel = NewVel.ycomp; Note also that this question is just about velocity, the position code is handled elsewhere (in other words, assume that this code is implemented at the exact moment that the circles begin to overlap). Thanks in advance for your help and time!

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• How to properly shrink a disk size of a server that is being backed up off-site?

  - by JKM

  We have a Virtual machine (lets call this one source) that is being hosted locally with a 1TB disk space (that's how big the virtual disk is) and it has been replicated remotely via Veeam to an off-site server (lets call this clone). However, there has been some server configuration changes that has made source not require as much disk space. I am contemplating shrinking the disk size of source, or using the standalone converter to create a new image with a much smaller disk size requirement (about 300GB). The reason behind this is to lessen the time required for the "Discovering replica VM" step during the replication process. My question is what happens to clone when the replication job is run? Do I need to redo the replication/set up a new backup to create an initial seed for source? Will the job automatically pick up that the disk size has shank and adjust the disk size of clone appropriately? What is the best method for accomplishing this?

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• Would there be any problems with DEP turned off?

  - by IneedHelp

  I recently moved to a fresh Windows 8 x64 system and I learned that my favourite firewall (JPF - Jetico Personal Firewall) doesn't get along with Win8x64 (CRITICAL_STRUCTURE_CORRUPTION errors), but I can not do without JPF, so I kind of tried everything I could think of (test mode, debugging, various system changes), but I was still getting blue screens because of the firewall driver/software. I know for sure that it is the firewall that is causing the problems because I get blue screens as soon as I install it and they stop when I uninstall it. I Also tested it thoroughly on virtual computers. Anyway, I have discovered that by completely turning DEP off by using this command: bcdedit.exe /set {current} nx AlwaysOff the firewall would not cause blue screens anymore. So my question is, what could go wrong with DEP completely turned off? Note: I do not care much about hardware/windows security, I keep myself secured by using sandboxes and virtual computers (and I also have backups), so I'm not concerned with viruses and root kits or whatever people are freaking out about.

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• Windows can't communicate with the device or resource (primary DNS server)

  - by David

  I am using Windows 7 Home Premium and am connecting to the Internet through Homeplug. When I connect and enable the LAN the status shows that I'm connected (the IPv4 shows connected), but after like 20 seconds it changes to No Internet connection. Even when it says I'm connected I can't connect to the Internet. My browser (Firefox) shows Server Not Found. When I run the troubleshooter it says "Windows can't communicate with the device or resource (primary DNS server)." What could be the problem, and how do I fix it?

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• Git multi-master, is it possible?

  - by Fran

  Hi, Is it possible to set a dual master GIT repositories? I would like to set up two different servers which I could push and commit to and changes on any of them would be propagated to the other. I've googled for it, but the most similar solution I've found is Gerrit2, but it does only one way replication (master - master). Does anybody know if this is even possible to do with git? If so, could you please tell me which tools to use? Thanks in advance.

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• Recover a Parallel Desktop 3 virtual machine in VirtualBox

  - by gregseth

  I have an old HDD image file that was used with Parallels Desktop 3. Ideally I'd like to use it in VirtualBox (conversion). In all the tutorials I found (like this one or that one) the VM must be started: there's the problem. I don't have the machine where Parallel 3 was installed anymore. I tried installing the trial version of the last version of Parallels (9) but it seem it doesn't offer the possibility to import an old VM. So here's the question: Given I can't boot the VM with Parallels Desktop, is there a way to convert the image file to another format that is bootable in VirtualBox? If it changes anything, the host is MacOS X 10.9, the guest is Windows XP.

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• Find methods related to testcases in Java

  - by user3623718

  I want to automatically change some methods in the program. These methods contain some compiler error and my program aims to fix these compiler errors. After fixing compiler errors I need to run test cases related to the changed method (or class) to know it is correct and if not which test cases failed. As the programs under investigation are very big, I only need to run test cases related to changes. As an example, if I change one method, then I need to only run test cases related to this method. Therefore, what I need is to programmatically be able to find test cases related to each method, and class. It is also useful if there is a tool that can do that for me. As an example, a tool which creates a matrix shows each test case is related to which method(s) One easy way to do that is to run all test cases and save functions they accessed. However, the problem is at the beginning the input program contains compiler error and it is not possible to run test cases because of these compiler error. Please let me know what is the best way to do that. An API or a tool that I can be used programmatically is the best for me.

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• What's the best tool to use to automatically backup selected folders from Windows to my external hard drive?

  - by PhD

  I have a 1TB external hard drive and I'd like to periodically schedule backups of my "Libraries" in Windows to the external drive. I'd prefer if it could detect what files have changed and periodically transfer them to the drive instead of I having to do it manually. Is there a way in Windows 7 to do this automatically? If not, what are some external tools (preferably free) that I can use for this? EDIT: I've used Windows back-up and I find it restrictive for detecting changes and backing up automatically. That's all that I'm aware of. My WD hard drive had something for this but the application doesn't work any more and it wasn't that good either. So, I wish to know what are my options.

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• Putting a whole linux server under source control (git)

  - by Tobias Hertkorn

  I am thinking about putting my whole linux server under version control using git. The reason behind it being that that might be the easiest way to detect malicious modifications/rootkits. All I would naively think is necessary to check the integrity of the system: Mount the linux partition every week or so using a rescue system, check if the git repository is still untempered and then issue a git status to detect any changes made to the system. Apart from the obvious waste in disk space, are there any other negative side-effects? Is it a totally crazy idea? Is it even a secure way to check against rootkits since I most likely would have to at least exclude /dev and /proc ?

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• suddenly can't connect to Windows 7 PC from xbmc

  - by Damon

  I have xbmc installed on a softmodded classic xbox and all of a sudden I cannot connect to the shared folders on my Windows 7 PC. Well, it can connect but it wants a username and password, but none exist on my computer. It's been several weeks since I last used it, but it was working fine then! and no particular changes I can think of aside from I guess a few Windows updates. I've seen reference online to Windows Live essentials causing issues with file sharing, but I don't even have that installed. And I made sure to tick 'turn off password protected sharing' in my advanced network setup. I had the guest account turned off and working fine before, and tried turning it on but no luck. I can access my shared folders fine from other Computers and a ps3. I've read a couple threads of similar situations on various folders and none of their solutions have worked.

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