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  • Should laptops remain plugged in when their battery is 100% charged?

    - by Click Upvote
    I've been hearing mixed responses to this, so would like to hear the final answer. When your laptop's battery is 100% charged, should you leave it plugged in so any battery power doesn't get used, or will that cause overcharging, overheating. etc? Should the laptop be unplugged when battery is 100%? I'm asking because my laptop's screen tends to get dim when unplugged, so I don't like to run it on battery. (Any fixes to this would also be helpful.)

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  • How to tell from what Ubuntu or Debian repository a package comes?

    - by gotgenes
    On a Debian-based system, including Ubuntu, how can one tell which repository a package will be downloaded from, without actually beginning the download? aptitude show and apt-cache info will show the section (e.g., metapackage, base, graphics), but not the repository to which a package belongs (e.g., http://ppa.launchpad.net/mactel-support/ppa/ubuntu or http://us.archive.ubuntu.com/ubuntu/). When installing the package, the actual repository appears during the download (it is printed out in the "downloading from ..." output from apt and similar programs), but how can one obtain information on the repository containing the package (or a specific version of a package) without downloading and installing it first? Additionally, how can one determine the source repository for a package that is already installed?

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  • Tools to manage clusters

    - by Stan
    Say if there're many game servers, is there any tools for engineers to easily manage? Below are some requirements. allow RDP (remote desktop) to servers. has group/permission setting. Classify by different functionality. So for people has permission to access certain group, they don't need further enter pwd to RDP servers, the tool will automatically log on the server. log activities: history about who has log on what server. Thanks.

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  • Have start menu index applications in places other than program files?

    - by user74757
    I love the ability to type any phrase into the start menu, and Windows 7 will bring up relevant executables under Program Files. However, I have a separate folder of my own where I store several portable applications - usually small apps that run straight out of an unzipped folder with little dependency. I have all of these under a specific hard-coded location - "PortableApps", but I would really like to tell the start menu to search this folder as well as Program Files for executables when searching. The search is often clogged because the executables I'm looking for are classified under "Documents" in the search results and buried in other non-related files. Is there a way I can achieve this in Windows 7? Thanks for any suggestions - Chase

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  • How to move mail accounts when migrating webhosting

    - by pkswatch
    I am migrating my website abc.com from one webhosting company to another in a shared hosting environment. Both have cpanel. And the second hosting account i am preparing to move is my multi-domain hosting account with 3 domains already in it. The problem is, i have many email accounts associated with my website abc.com, which are accessed using webmail. So if i move it to the other host, will i lose all those accounts and their emails? If yes, then how should i synchronise the email accounts so that all the accounts and the contained emails remain intact? I saw some several sync tools like IMAP Sync, etc. But these require two hosts while synchronizing, and as you see, i have just one domain name to be synchronized over 2 servers. PS, i do not have any ssh access on either of them, and i have made complete backup of all files using backup wizard in cpanel.

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  • SQL queries break our game! (Back-end server is at capacity)

    - by TimH
    We have a Facebook game that stores all persistent data in a MySQL database that is running on a large Amazon RDS instance. One of our tables is 2GB in size. If I run any queries on that table that take more than a couple of seconds, any SQL actions performed by our game will fail with the error: HTTP/1.1 503 Service Unavailable: Back-end server is at capacity This obviously brings down our game! I've monitored CPU usage on the RDS instance during these periods, and though it does spike, it doesn't go much over 50%. Previously we were on a smaller instance size and it did hit 100%, so I'd hoped just throwing more CPU capacity at the problem would solve it. I now think it's an issue with the number of open connections. However, I've only been working with SQL for 8 months or so, so I'm no expert on MySQL configuration. Is there perhaps some configuration setting I can change to prevent these queries from overloading the server, or should I just not be running them whilst our game is up? I'm using MySQL Workbench to run the queries. Here's an example.... SELECT * FROM BlueBoxEngineDB.Transfer WHERE Amount = 1000 AND FromUserId = 4 AND Status='Complete'; As you can see, it's not overly complex. There are only 5 columns in the table. Any help would be very much appreciated - Thanks!

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  • Multi domain server with dedicated SSL's HA

    - by user3692800
    I am hosting a server with 150 domain names (websites), each of the ssl's requere dedicated IP address. So server windows 2008, with 150 IP addressees and 150 websites. I need to have high availability solution. So thinking setting up AWS but ELB will not be a solution... and max IP's I can get per instance is 12 addresses. So what can I do to have all 150 sites hosted on one instance and be HA with instance in different availability zone.

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  • About memory cache of Linux

    - by cheneydeng
    I'm running a python script to do some statistics and the actually memory which used is low,about 10%.And no other process cost more memory.However,when i use free -m and it shows that almost 95% memory has been used.The point is that my script should do a lot of read from files,so i wonder if there's any mechanism of Linux memory cache that caused the problem?echo 1 >> /proc/sys/vm/drop_caches works,but it seems manually.How can i reduce the memory cost and doesn't make a bad effect on reading files?

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  • What's Keeping My Computer Awake?

    - by phantomdata
    First the question; How do I figure out what is preventing my Windows 7 computer from going into sleep mode? Second; some background... I've been struggling with this for a few days and am utterly perplexed. I setup sleep mode on my Windows 7 PC a few weeks ago, and all was well. The PC would sleep as expected and I was snuggly in knowing that my computer was saving power and some wear and tear on the components (we'll leave the 'is it better to sleep' debate for another thread/day, please don't start it). Well, I noticed the other night that my system stopped ever going to sleep. I set the sleep time down to 1 minute and wandered fully away from the PC (ensuring that no errant mouse or keyboard movements would occur) and the PC never went to sleep. I've also observed this over longer intervals as well, such as overnight. I have sleep mode enabled, of course "multimedia settings - When Sharing Media" is set to allow the computer to sleep. "powercfg -lastwake" show nothing of interest, since it never goes to sleep and can't wake up. "powercfg /requests" shows 3 entries - all "[DRIVER] ?". I assume that 2 of these are my mouse and keyboard - as I've recently used them to run the powercfg command. I'm at a loss for the third though. I've unhooked all USB peripherals save for my keyboard and mouse. Wake on LAN is disabled in my BIOS. I know that you can disable all apps from waking/preventing sleep - but I want the ability to remain for those apps that do legitimately need to keep the system awake. So; does anyone know of a way to figure out what the 3rd phantom "[DRIVER] ?" is in powercfg /requests?

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  • Sharepoint 2007 reset permission inheritance

    - by e-mre
    I have this SharePoint 2007 document library which has several levels of folders and files. Some folders in the middle of the hierarchy do not inherit permissions from their parents and have their unique permissions defined. It is a huge library and there are many folders like this. I am currently changing the permission model of my library and I want to reset all those unique permissions and have all of them inherit permissions from the library root. (Something like "Replace child object permissions" checkbox available in windows files system security window) If this is not possible, seeing a list of folders that have their unique permissions defined would also do.

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  • How can I copy files to an external drive and verify their integrity in OS X?

    - by jedavis
    I'm moving large amounts of data from one external drive to another larger one. The files are important and the smaller drives need to be cleared and reused (HD camera). Is there some utility for moving files and verifying their integrity? I've been using this command find . -type f -exec md5 '{}' \; > md5list.txt in the terminal to create a list of MD5s for each file then using diff to compare the two. However, I am moving 320GB at a time, which takes a while by itself. Computing the checksums takes another hour or so. It would be much more efficient to do this on the fly, during the copy. I'm just hoping someone has already written the software...

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  • Run single php code using multiple domains

    - by Acharya
    Hi all, I have a php code/site at xyz.com. Now I want to run the same site using multiple domains means when somebody open domain1.com, domain2.com ,domain4.com, so on urls, it should run the code/side that is at xyz.com I know one way to do this. I can host all these domains to the server where xyz.com is hosted so all domains will point to same peace of code/site. n above solution i need to hosted the domains manually. Is there any other way to do this as I want to add domains dynamically? Thanks in advance!

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  • How to remove a directory which looks corrupted

    - by hap497
    I am using Ubuntu 9.10. When I examine a directory, it shows as '?' for user/ownership. How can I remove it? -rw-r--r-- 1 hap497 hap497 1822 2010-01-28 22:48 IntSizeHash.h d????????? ? ? ? ? ? .libs/ -rw-r--r-- 1 hap497 hap497 194 2010-02-25 12:12 libwebkit_1_0_la-BitmapImage.lo I have tried rm and sudo rm but get an error: $ sudo rm -Rf .libs rm: cannot remove `.libs': Input/output error Thank you for any pointers.

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  • Large volume at /mnt on AWS instance

    - by rhaag71
    I know this is probably a somewhat 'dumb' question :) I have an AWS (small) instance and I just noticed that there is a ~150gb volume attached at /mnt, is this normal? It kinda freaked me out, I was thinking maybe someone was trying to capture whatever I mount in /mnt, there is the entry in my fstab too (and I found that others have this by googling)... the entry is as follows /dev/xvdb /mnt auto defaults,nobootwait,comment=cloudconfig 0 2 I don't have any volumes this large in my AWS volumes section though. I was just trying to understand this and be sure that someone is not trying to 'get in'... as there are many attempts daily. Thanks

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  • Limit number of concurrent user logins in Windows Server 2008 Active Directory

    - by smhnaji
    Is there the possibility to limit Active Directory users' max concurrent login sessions? I've read many articles and discussions about the solution, but none of them seem to be working. Many had suggested UserLogin script that doesn't work in Windows Server 2008. Some other suggested CConnect that is not good enough. It's also very complicated. Some others have introduced UserLock that should be paid for. It's wondering that Windows Server 2003 DOES have the feature (wile as a third-party), but Windows Server 2008 doesn't have! One of the articles I've read: http://www.edugeek.net/forums/windows-server-2008-r2/61216-multiple-logins.html

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  • How can I view and sort after the page count for multiple PDF files in a Windows file explorer?

    - by grunwald2.0
    I unsuccessfully used the "pages" feature in Windows Explorer, as well as in Directory Opus 10 and Free Commander XT (which I installed just for that reason, to try it out) to display the page count of multiple PDFs in a folder. All my PDF's are free to edit, i.e. not write-protected. I don't understand why any PDF reader can display the (correct) page number, but none of the file explorers can? (In the "details" view of course.) The only documents whose page count is displayed are MS Word documents. Do I have to use Adobe Bridge? (I didn't try it.) On a side-note: Did that change in Windows 8? Initial research: Google search was unsuccessful, the only slightly related SE topic I found was "How to count pages in multiple PDF files?".

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  • Passive mode FTP file download hangs from specific machine

    - by chiptuned
    I have a server which is an AWS instance that just cannot download files from a specific FTP server. I can connect to the FTP server fine and run some commands, but when I request a file it just hangs. Here is the debug output of the base linux ftp client after login: ---> SYST 215 UNIX Type: Apache FtpServer Remote system type is UNIX. ftp> get outgoing/catalog.gz catalog.gz local: catalog.gz remote: outgoing/catalog.gz ---> PASV 227 Entering Passive Mode (64,156,167,125,135,191) ---> RETR outgoing/catalog.gz 150 File status okay; about to open data connection. Thats it. Then it just sits there and nothing transfers. I have verified that a data connection is made but the client gets no data. ? ss -nt dst 64.156.167.125 State Recv-Q Send-Q Local Address:Port Peer Address:Port ESTAB 0 0 10.185.147.150:41190 64.156.167.125:21 ESTAB 0 0 10.185.147.150:48871 64.156.167.125:48557 The FTP server is not in my control and downloads from other FTP servers in passive mode have worked. Active mode does not work as the system is behind a firewall. Every FTP client I've tried has the same problem. The download works from other systems, even from other AWS instances I have with the same Security Group. Not necessarily the same distro or config though. I understand it may be some issue on the server side, but I want to know what it is about my particular machine where the transfer hangs and where on every other machine I can get my hands on, it works. Please let me know what the culprit on the client side could be or ideas on what else to look at.

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