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• Cannot access internal network on OSX 10.6.6

  - by cabuki

  Last week, I began having trouble connecting to our internal web servers. Usually, a refresh would take care of it or switching to a different wireless network, but as of yesterday, this wasn't enough. We have an internal DNS server using dnsmasq and a private internal host name (us.lcl). Once I started having more issues with the names not resolving, I tried pinging the server. Using the internal host name (s1.us.lcl), it failed. I tried using the IP address, but that also failed. I have no problems accessing external sites with the exception of it being a bit slower than normal. A reboot yesterday at lunch time after following the instructions here seemed to fix the issue, but when I came into the office this morning, it had stopped working. As of this posting, I cannot ping, ssh or access the web server using the internal host name or ip address. I'm the only one running 10.6 in my office and none of my colleagues has this issue.

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• Automatic repair software

  - by ADOConnection

  Do anyone knows any kind of apps or services for "taking care of servers"? (besides managed servers) There are hundreds of ways your server or application can stop working properly. Small things are easy to miss but usually easy to fix. Log overgrouth, configuration issues, etc. Of course there are best practice checklists, but its not a human task to check configuration best practices. Im sure it can be automated: some kind of agent can monitor all system settings, say what is right and wrong and give suggestions on how to make it right. I have to admin several servers and I need some kind of overview of overall situation. As well as a tool, that will fix problems automatically. Can you people suggest something? (I know its a little bit out of rules of SF, but I think this particular question is quite specific) It would be great to have something like http://stackoverflow.com/questions/1451319/asp-net-mvc-view-engine-comparison but for automation software.

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• List of Asus U46 laptop troubles with Ubuntu 12.04

  - by Cybertib

  I've bought my ASUS U46 last february. I would like to make it work better with Ubuntu 12.04. Note taht I was forced to install Ubuntu 12.04 (before its publication) by ethernet. After a successfull install, several problem remain unfixed such as : USB 3 just does not work correctly. Can be fixed, but I didn't succeed yet. Nvidia Optimus (means that you can use Intel Chipset or the Nvidia GeForce) is possible to use thanks to BumbleBee project. It seems to work, though. But Nvidia tools still say they don't see any Nvidia driver installed. Battery duration can be optimised by using Laptop-tools. Any standby state lead to a X server crash. A good CTRL+ALT+F1 login and "shutdown -r" avoids a brutal power off. And since few weeks, I have some bug reports right after boot about "unattended-upgrade", and dpkg troubles after any apt-get install or update (Linux kernel doesn't compile anymore), ... Are there any ways to fix those troubles ? I would need a bit of assistance, in fact. Thank you for you help, Sincerly yours, Thibault

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• Software Architecture: How to divide work to a network of computers?

  - by Morpork

  Imagine a scenario as follows: Lets say you have a central computer which generates a lot of data. This data must go through some processing, which unfortunately takes longer than to generate. In order for the processing to catch up with real time, we plug in more slave computers. Further, we must take into account the possibility of slaves dropping out of the network mid-job as well as additional slaves being added. The central computer should ensure that all jobs are finished to its satisfaction, and that jobs dropped by a slave are retasked to another. The main question is: What approach should I use to achieve this? But perhaps the following would help me arrive at an answer: Is there a name or design pattern to what I am trying to do? What domain of knowledge do I need to achieve the goal of getting these computers to talk to each other? (eg. will a database, which I have some knowledge of, be enough or will this involve sockets, which I have yet to have knowledge of?) Are there any examples of such a system? The main question is a bit general so it would be good to have a starting point/reference point. Note I am assuming constraints of c++ and windows so solutions pointing in that direction would be appreciated.

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• Cannot open mailbox

  - by AdamL

  Ive got a server running Windows Server 2012 and Exchange 2013 on my local domain. Ive got the mailboxes setup and can send/receive emails fine when using OWA. If i try to open the mailbox using Outlook 2010, I get the below error If i try to expand the folder, i get the same message but am still able to use OWA. When I try to run a send/receive, I get the below error: After a bit of researching on the web, people suggest that the profile is corrupt. I have recreated the profile and tried again but still same error. Another post has suggested that the issue is DNS and client PCs should be able to resolve autodiscover.domain.local and server.domain.local to the IP of the server. This is fine on my network. Every user has got the same issue and I am struggling to identify what is causing the fault. Advise appreciated.

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• moving in the wrong direction

  - by Will

  Solution: To move a unit forward: forward = Quaternion(0,0,0,1) rotation.normalize() # ocassionally ... pos += ((rotation * forward) * rotation.conjugated()).xyz().normalized() * speed I think the trouble stemmed from how the Euclid math library was doing Quaternion*Vector3 multiplication, although I can't see it. I have a vec3 position, a quaternion for rotation and a speed. I compute the player position like this: rot *= Quaternion().rotate_euler(0.,roll_speed,pitch_speed) rot.normalize() pos += rot.conjugated() * Vector3(0.,0.,-speed) However, printing the pos to console, I can see that I only ever seem to travel on the x-axis. When I draw the scene using the rot quaternion to rotate my camera, it shows a proper orientation. What am I doing wrong? Here's an example: You start off with rotation being an identity quaternion: w=1,x=0,y=0,z=0 You move forward; the code correctly decrements the Z You then pitch right over to face the other way; if you spin only 175deg it'll go in right direction; you have to spin past 180deg. It doesn't matter which direction you spin in, up or down, though Your quaternion can then be something like: w=0.1,x=0.1,y=0,z=0 And moving forward, you actually move backward?! (I am using the euclid Python module, but its the same as every other conjulate) The code can be tried online at http://williame.github.com/ludum_dare_24_evolution/ The only key that adjusts the speed is W and S. The arrow keys only adjust the pitch/roll. At first you can fly ok, but after a bit of weaving around you end up getting sucked towards one of the sides. The code is https://github.com/williame/ludum_dare_24_evolution/blob/cbacf61a7159d2c83a2187af5f2015b2dde28687/tiny1web.py#L102

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• Replication with AK8

  - by Steve Tunstall

  Hello folks, This came up today and I want to make sure it's clear. Remember the "deferred update" I spoke about in my "Upgrade to AK8" entry just a bit ago? It's important to understand that this deferred update changes the way replication works. It is necessary that systems with the deferred update applied only replicate with other systems that have also had this deferred update applied. So if you apply it, your system can NOT replicate with ANY other system that has NOT had it applied, even if that other system is running AK8!!! Got it??? Remember, we do have a new version of the 2011 code for the older systems that do not want to upgrade to AK8. This 2011.1.8 code ALSO HAS this same deferred update in it. So, if you upgrade your system to AK8, and then apply the deferred update, and you have another system running either 2011.1.8 or AK8, you can replicate with them again once they apply the deferred update for multiple initiator groups. Yes, even if you're not using LUNs. Here is what it looks like if you try. It will fail.

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• Internal Libraries (Subversion Externals, 'library' branch, or just another folder)

  - by Ntsc

  Currently working on multiple projects that need to share internal libraries. The internal libraries are updated continually. Currently only 1 project needs to be stable but soon we will need to have both projects stable at any given time. What is the best way to SVN internal libraries? Currently we are using the 'just another folder' like so... trunk\project1 trunk\project2 trunk\libs It causes a major headache when a shared library is updated for project1 and project2 is now dead until the parts that use the library are updated. So after doing some research on SVN externals I thought of this... trunk\project1\libs (external to trunk\libs @ some revision) trunk\project2\libs (external to trunk\libs @ different revision) trunk\libs\ I'm a little worried about how externals work with commits and not making library commits so complicated that I am the only one capable of doing it (mostly worried about branches with externals as we use them extensively). On top of that we have multiple programming languages within each project some of which don't support per-project library directories (at least not easily) so we would need to check out on a per project basis instead of checking out the trunk. There is also the 'vendor' style branching of libraries but it has the same problem as above where the library would have to be a sub folder of each project and is maybe a little to complicated for how little projects we have. Any insight would be nice. I've spent quite a bit of time reading the Subversion book and feeling like I'm getting no where.

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• Reducing the size of the EDB file.

  - by Toby

  I have hit an issue on a MS SBS machine where every morning the datastore for the exchange mailboxes dismounts itself. We believe the issue is that it has grown too large over time and needs cut down a bit. As part of this we have removed (purged) some mail files that were no longer needed, which should have given us a saving of roughly 3GB (more than enough saving for what we need). So I deleted the mailboxes, then purged them and noticed that the .edb file was still reporting the same size, I dismounted and remounted it to see if that would have any effect but it did not. Am I missing a step? I have read online that you can run offline defrag on the file but that seems to only save you a small amount of whitespace. Any help would be greatly appreciated.

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• Can I extend my total RAM by buying more, and what kind do I need to buy

  - by Xeon06

  I currently have 4 GB total RAM and I would like to get some more, to bring it to a total of 8 GB. Is it possible to simply buy another 4 GB and bring it to 8? If so, what kind should I be buying? There is a lot of different possibilities, DDR3, DDR2, clock speed, etc. I am kind of lost among all this. My current setup goes like this: ACER EG43M mainboard Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz 4 total RAM slots, 2 occupied by 2 GB sticks According to CPU-Z, my memory type is DDR3 (not sure how reliable that is) Full CPU-Z dump Windows 7 64-bit So basically, I want to know whether it's possible to extend my current RAM to get 8 GB total by buying another 4, and if so, what kind of RAM do I need? Note that I am not looking for shopping recommendations. I'm worried about the hardware compatibility.

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• Windows 7 spins up HDD when files should be on SSD

  - by ZorroDeLaArena

  I run 64-bit Windows 7 Ultimate off a Corsair 12GB SSD (cmfssd-128gbg2d) and I've got two older HDDs I use for storing media. However even though the operating system and all the programs are installed on the SSD, frequently when I'm starting programs, I can hear the computer spin up one of the HDDs before the app starts and I'm not sure why (and I don't know which drive it is). For programs that should open very quickly - Programmer's Notepad, Calculator (the basic one that comes with Windows), etc. - having to wait several seconds sometimes can be pretty obnoxious. Avoiding wait times like that are why I got the SSD in the first place. Is there any way to tell why that's happening? I'm happy to provide more information but I'm not sure what's important. Any help would be really appreciated!

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• Is there a way to create a custom installer package to do batch installs of a bunch of programs at o

  - by user37860

  Basically I want to create a file which will automatically install a bunch of files without having to manually install each of them (i.e. Flash, Adobe Reader, MS Office, etc.). I'm guessing the easiest way to do this would be to create a batch file but I don't have much experience with the scripting side of things. I remember seeing a website at one point that would do this sort of thing for you but I'm not sure if that could be used offline or not. Thanks in advance...just looking to make things a bit more streamlined on new builds without the costs associated with imaging software. Thanks!

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• Strings are UTF-16&hellip;. There is an error in XML document (1, 1).

  - by Shawn Cicoria

  I had a situation today where an xml document had a directive indicating it was utf-8.  So, the code in question was reading in the “string” of that xml then attempting to de-serialize it using an Xsd generated type. What you end up with is an exception indicating that there’s an error in the Xml document at (1,1) or something to that effect. The fix is, run it through a memory stream – which reads the string, but at utf8 bytes – if you have things that fall outside of 8 bit chars, you’ll get an exception.   //Need to read it to bytes, to undo the fact that strings are UTF-16 all the time. //We want it to handle it as UTF8. byte[] bytes = Encoding.UTF8.GetBytes(_myXmlString); TargetType myInstance = null; using (MemoryStream memStream = new MemoryStream(bytes)) { XmlSerializer tokenSerializer = new XmlSerializer(typeof(TargetType)); myInstance = (TargetType)tokenSerializer.Deserialize(memStream); }   Writing is similar – also, adding the default namespace prevents the additional xmlns additions that aren’t necessary:   XmlWriterSettings settings = new XmlWriterSettings() { Encoding = Encoding.UTF8, Indent = true, NewLineOnAttributes = true, }; XmlSerializerNamespaces xmlnsEmpty = new XmlSerializerNamespaces(); xmlnsEmpty.Add("", "http://www.wow.thisworks.com/2010/05"); MemoryStream memStr = new MemoryStream(); using (XmlWriter writer = XmlTextWriter.Create(memStr, settings)) { XmlSerializer tokenSerializer = new XmlSerializer(typeof(TargetType)); tokenSerializer.Serialize(writer, theInstance, xmlnsEmpty); }

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• iSCSI drives suddenly inaccessible or corrupted

  - by Hammer1

  I have two NAS (Seagate Black Armors) connected to our network through iSCSI to a Dell Optiplex 760 running 32-bit Windows 7 and Windows iSCSI Initiator. For some unknown reason within the last week both are reportedly inaccessible and/or corrupt (that is the error message generated when I attempt to open the on the iSCSI computer). However, connecting to either of them via direct IP goes off without a hitch. I've tried Error checking but received "The disk check could not be performed because Windows could not access the disk." I've tried System Recover to a date almost two weeks back thinking Windows update may have caused the issue but there is no change. Anyone have an explanation and/or a solution to get them reconnected? Thanks.

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• How to block a website completely?

  - by user37076

  I want to block some sites(e.g. youtube,news sites ), because I have a problem with procrastination and I find these websites affect my productivity very much. I used to block them by adding them to HOSTS file. However, gradually every time I want to take a break, I open the hosts file and comment my block again. Is there any way I can block the websites and cannot (at least a little bit hard, e.g. I have to reboot my pc) unblock them. I have no access to the router or any firewall, besides the ones on my computer. I just want to FORCE myself to work without any chance to procrastinate.

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• In a virtual machine monitor such as VMware’s ESXi Server, how are shadow page tables implemented?

  - by ali01

  My understanding is that VMMs such as VMware's ESXi Server maintain shadow page tables to map virtual page addresses of guest operating systems directly to machine (hardware) addresses. I've been told that shadow page tables are then used directly by the processor's paging hardware to allow memory access in the VM to execute without translation overhead. I would like to understand a bit more about how the shadow page table mechanism works in a VMM. Is my high level understanding above correct? What kind of data structures are used in the implementation of shadow page tables? What is the flow of control from the guest operating system all the way to the hardware? How are memory access translations made for a guest operating system before its shadow page table is populated? How is page sharing supported? Short of straight up reading the source code of an open source VMM, what resources can I look into to learn more about hardware virtualization?

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• Intel Network Connection: This device cannot start. (Code 10)

  - by harryuser

  I have a Intel® Desktop Board DP55KG (see http://www.intel.com/products/desktop/motherboards/DP55KG/DP55KG-overview.htm), which has a Intel 82578DC Gigabit Network Connection on board. Additionally, I have a Intel PRO/1000 PT Dual Port Server Adapter in a PCI express slot and I am running Windows 7 Professional 32-bit. Also I am running with Intels latest network driver, in the 82578DC questions this means 11.6.92.0 with driver date 2010.04.12. The problem I am having is that the Intel 82578DC Gigabit Network Connection will not start on boot with the following message: "This device cannot start. (Code 10)". Disabling and then enabling the device after boot makes the network connection work again without any problems, but as soon as I reboot the problem occurs again. Any suggestion how to fix this? I have seen this problem on another Intel S3420GP board as well in Windows 7 that is.

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• an issue with VMWare Workstation 10 and three monitors

  - by whtvr

  I'm having a bit of a problem with using three monitors with VMWare Workstation 10. When only two monitors are enabled in the system I have an option to "Cycle Multiple Monitors", available from the View menu (in full screen). When I enable the third monitor that option is no longer in the menu and I can only use one monitor at a time. I've found this article and a "Choose a Monitor Layout" button is mentioned there but I'm unable to see it anywhere. I'm using Windows 8.1 as the host and Ubuntu 14.04 as the guest. The graphics card is AMD Radeon R9 290x with latest beta drivers

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• Resolution is Being Stupid. Help me?

  - by One Terrorist

  I'm having trouble with a new computer I bought a few days ago. I have come to the conclusion that the resolution of the screen is too small, at the moment it is 1024x768 and I think it should be 1280x960, due to a message given at the resolution tab of the control panel. It states: (!) If your resolution is below 1280x960, some items on the screen may not fit on the screen. The computer is an Asus A54H and runs 64-bit operating system with Windows 7 Home Premium. This link has a screenshot of the screen at the moment, the icons and font are too big and are a little stretched. Thank you in advance!

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• Dedicated server given, how to start?

  - by eduardito

  Hello, I've been given a dedicated server. Unfortunately, I have no idea what to do / how to manage it. I have background in many fields on Computer Science but never got to focus on networking, server management, etc. What I'm asking is for recommended books, Basically, I would like to be able to be proficient and understand well how to manage domain names, zones, setting up mail servers, being able to install easily any web server, and such. Everything needed for proper server management through the shell. I will probably stick with Parallels, or Cpanel for a bit. But I dislike those, especially how it add a lot of intruding user accounts and configs on the file system. Thank you

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• Windows 7 network share issues w/XP & SBS 2K3

  - by Kevin K

  Hi, my Windows 7 Ultimate 64 bit computer has issues when accessing SBS 2K3 or XP shares. 1) It will not automagically reconnect upon boot. I have a batch file that will do this that utilizes net use (yes I have /persist:yes, but it does not help) to re-map them. 2) After trying to use it for a few minutes, it will not work. Any attempt to access the drive letter that was mapped causes windows Explorer, or other apps. to lock up. These shares work fine from XP & Vista computers. When this happens the internet works fine, just the mapped drives do not work correctly.

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• where can i get cables for the canon Mx310

  - by Tarrasch

  Hey there, a friend of mine gave me a printer/scanner because he could not print with it anymore. the point is this thing has been lying in the cellar for quite some time now and the cables are missing. that is the power cable for my power plug ( there are foreign ones included) and more importantly the connection to the computer. I have googled around for a bit and tried to get to a hotline,but my problem is : Where can i get those cables from? Can anyne help me get a clue where to find those, where to ask for something like this? cheers

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• OSX : Setup for filestorage in medium business

  - by Franatique

  In our office every machine runs OSX. In search of an ideal storage and sharing solution we decided to let OSX Server handle all account information and auth requests whereas an 7TB QNAP provides NFS shares. All shares are published as mounts in the companywide LDAP. As it turns out, handling permissions in this situation is very clumsy (e.g. inherit permissions on newly created files). Unfortunately using NFS4 in combination with ACLs did not solve the problem. As a possible solution I set up a iSCSI connection between QNAP and the machine running OSX Server which in turn serves the LUN as AFP share. Permission handling works like a charm for this setup. Although I am a bit concerned about the performance of this setup. As we are a fast growing company we expect the solution to serve at least 100 clients while using files aprox. above 100MB each. Are there any known drawbacks of this solution?

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• Does it make a difference to read from a file instead of from MySQL?

  - by Joe Huang

  My web server currently is quite loaded. And I have a PHP file that is accessed very often remotely. The PHP file basically makes a MySQL query and returns a JSON formatted string. I am thinking to use a Cron job to write the necessary data into a file every 15 mins, so the PHP file doesn't make a MySQL query, instead it reads from the file. Does it make a difference? I mean to alleviate the server loading (CPU/MySQL) a bit?

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• How to not startx in hosted inux CentOS 5.5 ,and how to make full screen

  - by user61104

  Hello all Im beginner to VMWare player , im using CentOS 5.5 as the virtual OS and installed the VMWare Player in windows xp 32 bit And its working great , but when I like to start the GNUME gui to use x server its starting the GUI desktop right inside the VMWare server I like it just to start , and I will connect form out side ( for example with xming x server ) how can I do that ? Second question is how can I make the VMWare server with the GUI display to be full screen on my desktop ? Now when I resize the window its getting full screen but the Linux main window remain centered and small . and I like it to stretch full screen

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