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• Is it normal for the laptop charger to spark when plugging in?

  - by Cd-MaN

  All the laptop chargers I had until now sparked whever I plugged them in. This is true for my old charger (the bulkier / rounder Dell model) and the new charger (the flat Dell model) with two different Dell laptops, however until recently I didn't give it much thought. Then, in the last couple of months: I shorted out a conference room and melted the floor a little (the wire caught fire) The second charger (also a Dell original) died, taking the power strip with it I'm wondering: Is it normal for laptop chargers to spark when plugged in? Specifically new, original Dell chargers Is there a "correct" way to plug / unplug chargers? Do I need to first unplug it from the wall and then from the laptop / do I need to first plug it into the wall and then into the laptop? May the problem be caused by the fact that I leave sometimes the charger plugged into the wall without connecting the laptop for longer periods of time (up to a day)? PS. I'm talking about Europe, so 220V and this happens in many places (at home, at my parents, at work, in hotels I trave to, etc)

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• Utilising a Magento server cluster to drive hot reindexing

  - by WOBenji

  We've asked a similar question in the past, basically we have a very large Magento store with 500000 products which are currently reindexed once a day, during the night. We'd like to speed this process up significantly, we're at about 4-5 hours now. The solution was suggested for us to do something like this on a server cluster and replicate the database changes after they've been done on a machine that isn't being bothered with serving customers. But what is the mechanism for that? How do we replicate those changes across to the live site from the server cluster? Can someone point me in the right direction here?

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• Seemingly random disconnections on Windows Server 2008 R2

  - by bobblez

  So I have a box running a Windows Server 2008 R2 in my LAN, which is running, among other things, a voip server used by other people. I myself am in the same subnet with the server, while the other users are not. Now, maybe on average twice a day, all the other users get disconnected from the server (and if I take a remote desktop connection to it, I'm not able to open any web pages either). These disconnections usually last only about 5 seconds, but sometimes they may last up to a minute. What could possibly cause this? I have all the updates installed from windows update and the motherboard of the server is asus p5b deluxe (if that is of any interest). edit: Forgot to mention that my own internet connectivity stays intact while the server's does not, and both computers are behind the same router.

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• Apache with mod_perl eating memory when idle

  - by syneticon-dj

  An Apache webserver running a mod_perl application is exposing abnormal memory usage - after the "day load" ceases, the system's memory is being exhausted by the Apache processes and oom_killer is being invoked. As the load returns the following morning, the memory usage normalizes - probably because Apache workers get recycled periodically if a sufficient number of hits is generated: This is the graph for apache hits per second to correlate: The remaining 2 hits per second throughout the night are induced by HAProxy checks - it runs HEAD http://mydomain.example.com/running HTTP/1.0 requests against the server every half a second with "running" being a static file (i.e. not invoking any perl code). It also seems that disabling these checks remedies the memory usage problem, but obviously cannot be a solution. All of 3 similarly configured servers (behind HAProxy) expose this behavior. The running OS is Ubuntu 10.10, Apache version 2.2.16. This seems to be a memory leak but I have no idea how to start debugging it - any hints?

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• Need to scale quickly. Which cloud service should I use?

  - by mk1000

  Traffic to my facebook app is growing at an insane rate and I need some suggestions on how to scale. I'm probably not going to even be able to keep it running by the day's end, as it's hosted from my already overloaded dedicated server. I need to either move it to its own box or a cloud service like e2c. Something like e2c seems like the way to go, but my server admin skills are terrible. Is there a good front end management UI for e2c or another hosting service that is comparable in cost that is fully managed? I don't mind going with something a bit more expensive now if that means I can get everything switched over and running within 24 hours.

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• random hard disk errors

  - by AugB

  For the past 2 years or so (4 year old custom build) I've been getting random moments where everything stops responding (or takes a very long time to respond) followed by I/O and hdd not detected errors on restart. To fix it, all I usually need to do is unplug my SATA cables from the hdd and mobo and plug them back in again and the problem disappears, at least for a little while (it ranges anywhere from a day to a few months time). Sometimes even a startup repair does the job. I've done multiple reformats and have also ran chkdsk more times than I can remember and both do not seem to help in the long run. Both the drives seem to be exhibiting the same problem. Have both my hdds been "dying" for the past couple of years, even though they are fully functional besides these occasional hiccups? Does the issue lie elsewhere? All feedback is appreciated. System specs: Biostar Tpower i45 mobo 2x WD Caviar 640GB hdds Zalman 750w psu Radeon 5870 gpu 2x2gb Gskill DDR2 ram Win7 64

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• Previous Versions delayed with SBS 2008 / Windows 7

  - by indeed005

  The SBS 2008 at this site has Previous Versions enabled on a mapped drive. The snapshots happen 3 times a day. I doubt they take very long; the diff size is only a few GB. The problem is that the users on Windows 7 cannot see their previous versions until a few hours later. Is there some indexing that has to happen before the Previous Versions are visible to the client machines? Edit: In the application log, 3 minutes after every scheduled backup, there is an event for VSS (EventID 8224) saying "The VSS service is shutting down due to idle timeout" Apparently this means it has finished successfully, even though modified files still do not show another version.

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• Moving an "all-in-one" PC when turned on/off

  - by Purak

  I have an "all-in-one" pc. I know that moving a pc when it is switched on is harmful to the hardware components. What I would like to know is if the same applies to "all-in-one" pc's and if the same applies to regularly moving it from one side of the room to the other when it is turned off! The reason for the question is that I work on one desk during the day, and in the evening move it to the couch so I can do other stuff while watching TV or something. I always turn it off before the move, but somebody told me that I can be damaging the machine by doing so. Can anybody shed some light on this? Many thanks

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• Can anyone recommend free network monitoring tools?

  - by Josamoto

  Hi all I have a machine at home on a 3G internet connection, and my PC is consuming approximately about 200MB per day in uploads & downloads. I'm using an application called Networx to monitor the upload/download usage, but I am on the outlook for the culprit application munching away on my cap. Networx tells me how much my connection uses in total, and I need to know how much each application uploaded / downloaded. Does anyone know of a network connection monitoring utility for Windows 7 that can give me a daily outline of how much data was uploaded & downloaded, and specify this on a PER APPLICATION basis. Thanks in advance!

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• Can anyone recommend free network monitoring tools?

  - by Josamoto

  Hi all I have a machine at home on a 3G internet connection, and my PC is consuming approximately about 200MB per day in uploads & downloads. I'm using an application called Networx to monitor the upload/download usage, but I am on the outlook for the culprit application munching away on my cap. Networx tells me how much my connection uses in total, and I need to know how much each application uploaded / downloaded. Does anyone know of a network connection monitoring utility for Windows 7 that can give me a daily outline of how much data was uploaded & downloaded, and specify this on a PER APPLICATION basis. Thanks in advance!

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• I dropped my hp laptop and it has been on the startup repair screen for hours now--what can I do?

  - by tiy

  I dropped my hp laptop (I have windows 7). There was a blue screen with the cursor. It took about an hour or two for the startup repair screen to appear. Then it says to wait at least an hour. I've been charging my laptop for around a day now and the same screen, with a bar with blue moving, is still there. It says it's fixing disc errors. What can I do to get to the windows screen with usernames and pictures/fix it? thanks.

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• Can I set osx to boot with several spaces containing a different set of apps in each?

  - by Jay

  When my system boots I would love to have it to create three spaces: First Space: email and things (my to do list program) Second Space: textmate and a browser containing first site I am developing Third Space: textmate and a browser containing my second site Is it possible to set it up to do that each time? I'd prefer not to use the reopen windows option on shutdown because most days I have a bunch of things open that I won't need the next day. Thanks. UPDATE: I found TotalSpaces2 and it will open all the same spaces when I reboot. I suppose that I might need some kind of hack to get the applications to start in the appropriate space at boot.

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• Why do I have to enter my password every time I activate / deactivate AirPort (WiFi) on my MacBook P

  - by Another Registered User

  I use Snow Leopard, and I'm used to activate / deactivate WiFi like 20 times per day. The reason is that WiFi stops working properly after a few minutes of use. So every time I try to surf, I must stop/reactivate it first. But now, suddenly I have to enter my user password every time I want to do it. It's so annoying! The dialogue details say: Right: com.apple.airport.power Program: SystemUIServer What can I do that the Mac won't ask me for the password every time? It's hard enough that I have to stop/reactivate WiFi all the time (hardware bug). I have a admin account with full rights.

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• Best Wiki Software For Product Support

  - by Zapnologica

  Good day, I am looking for a wiki system which we are going to use at work for a form of product support. We manufacture multiple devices and now i want to make a wiki which contains all sorts of relevant and helpful information on that product which the users can look at before trying to contact us for support? Now immediately the 1st option that comes to my mind in Media wiki but I dont just want to jump on the band wagon. I thought I would ask around first. It should preferable be free. But obviously if its really worth paying for then thats not the end of the world. And the uploading of content and media is not of much importance as the end users will simply be reading the information which the company has published. Another nice to have but is not critical is if it where to run on asp.net as we have Microsoft server running anyway.

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• "Access denied" to C:\Documents and Settings after removing malware?

  - by Rising Star

  My Windows 7 PC became infected with the so-called "Malware Protection designed to protect" trojan while I was at work the other day. I managed to kill the process so that the malware is no longer running. The removal instructions specify to delete the following file: c:\documents and settings\all users\application data\defender.exe However, when I click to c:\documents and settings, it says "Access denied". Prior to this malware infection, I've never had any trouble accessing "Documents and Settings" or "Application Data." I read that in Windows 7, c:\documents and settings is a psudonym for c:\users, but I still cannot find the file defender.exe. Suggestions?

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• What data should I (can I) gather to prove a .net bug in third party software?

  - by gef05

  Our users are using a third-party system and every so often - a user might go all day without this happening, other days they may see it two or three times in seven hours - a red x will appear on screen rather than a button, field, or control. This is a .net system. Looking online I can see that this is a .net error. Problem is, our devs didn't write it, and the vendor wants proof that the problem resides with their system, not our PCs. What can we do to gather information on such an issue that would allow us to make our case to the vendor and get them to create a fix? I'm thinking of data to gather - anything from OS, memory. .net version installed etc. But I'd also like to know about error logging - if it's possible to log errors that occur in third-party systems.

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• Linux Permissions

  - by Tres

  I am running Fedora 12 and I've setup a partition separate from my root partition to keep shared files and home directories. Now, I've been having permission issues where it says the user cannot chdir into their home directory (/files/home/*). Now, I fixed this originally by chmodding / to 0755 and the home directories also to 0755. And yes, the user is the owner:group of their home directory. Now get this, I didn't change a thing, rebooted, everything still works. Great, right? I boot the server up a day later, and now same ol issue. This is a home server that wasn't on at all at any point in between the working state and non-working state. Also, nothing else was modified. Any ideas? Thanks!

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• Some Domain Clients unable to access certain websites

  - by Shaunie

  I have a small domain around 20 clients with a 2003 R2 SP2 DC. Most of my clients can browse the internet freely and dont have a problem. However a couple are reporting problems accessing certain sites. IE: Hotmail, skyscanner, bbc news They can browse the sites sometimes then other times they get 408\409 errors. other machines in the domain can access these sites. I have cleared out dns cache on these machines modified external dns servers on the DC still to no avail. The main issue is the person not able to access skyscanner uses it several times a day to book flights for employess going on leave or returning to work. both clients are running XP SP3 though one machine is getting change for one running win7 shortly. Any advice greatly appreciated. thanks

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• Dark Windows Themes

  - by CaffGeek

  I spend all day staring at computer screens. I have changed my Visual Studio theme to a dark theme, and find it much easier on the eyes. I'd like to change the rest of windows. Unfortunately, the only themes installed by default that are dark, are high contrast. Which is NOT what I am going for here. I can't seem to find an official dark theme, that isn't high contrast. I've found dynamic black, which is a good example of what I'm looking for, but it's not an official theme. Is there anything out there?

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• Entering the user's name in a URL for Chrome through Group Policy

  - by Automate Everything

  I am managing a Windows Server 2008 R2 server, with several Windows 7 machines, and we have recently deployed Google Chrome using Group Policy. We also have a locally hosted intranet for storing procedures, forms, and so on, as well as reports that pull directly from our databases. I am trying to put the user's name in the startup URL for Chrome, so that when they open Chrome at the beginning of the day, it can pull a list of items from the database that contains their username. The report works, and I have it using a drop down right now, but I would like to be able to put their username in the URL as a GET variable instead. Does anybody know how I would go about doing that for Chrome? I tried putting ${user_name} in the URL, and I tried putting %username% in the URL, but that didn't translate to anything. Is there some way to escape it so that it gets translated by the system into a username? Any help would be greatly appreciated.

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• Hardware advice for bitmap / openGL image processing server?

  - by pdizz

  I am trying to work out a build for a processing server to handle bitmap processing as well as openGL rendering for chroma-keying images and Photoshop automation. My searches here and on Google have turned up surprisingly few results, and seeing that there aren't tags for bitmap or image processing I take it this is a specialized application. The bitmap processing is very cpu-intensive while the chroma-keying and Photoshop stuff is gpu-intensive. I doubt this is a case of over-optimization as our company batches thousands of images a day (currently on individual workstations) and any saving in processing time and workstation down-time would be beneficial. Does anyone have any experience with this type of processing server? Any special considerations that would go into a build like this or am I over-thinking it?

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• What is a good way to get back to the command prompt discarding STDOUT and STDERR

  - by elementz

  I often launch applications from the cli via e.g. command & to immediately get back to the prompt back. The downside of this is, that I still get STDOUT and STDERR. So I use command &> /dev/null to discard those outputs. This can get quite a chore, when having to write this often during a day. So my question is, is there a better (read shorter) way to discard of STDOUT and STDERR when not needed? What could be done? write a wrapper script to launch applications? What would be an elegant way to do this?

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• UNMOUNTABLE BOOT VOLUME win7

  - by user1809318

  i'm having a serious problem with my laptop (Toshiba satellite l40). Two days ago i just turned it off by holding the power button and the next day it didn't start at all. There is a blue screen with an error : UNMOUNTABLE BOOT VOLUME, i searched all over the net for a solution, did almost everything like using the windows 7 install disk and trying to repair with the command prompt (check c: /r, bootfix etc.) it runs the check saying there are no errors and when i restart the blue screen again. Can someone please give me some new solution?

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• IIS 7.5 Site being redirected from hostname to IP

  - by TuxOtaku

  So here's the problem. I have a site in IIS that is being redirected from the site's hostname to its IP address. The problem is, I haven't even set up redirects at all for the site; and yet when I analyze the headers that come through as the page loads, I see clear as day, "302 Temporary Redirect". What could be causing this? I thought perhaps it was something in my application's DB (it's a PHP/MySQL application), but I have ruled that out. I also thought that it might be a rewrite rule somewhere, so I deleted all my rewrite rules as well.

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• Does it exists a way to do a (software) switch between DVI and VGA screens?

  - by gogolb

  I'd like to know if there is a way (a software, a keyboard combination, etc...) to switch between DVI and VGA screen on the same monitor. I've two PCs connected to the same monitor, far away (80cm) from me. To push the monitor button is not so easy and comfortable as could seems, moreover if you have to do it almost 20 times a day. I've tried to check on search engine/Samsung (SyncMaster SA450) site for a solution but with no success. Any suggestion? Thank you all in advance, gb

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