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• how to get a list of files / folders as an IEnumerable and not an array

  - by Matt Peters

  how to get a list of files / folders as an IEnumerable and not an array? the reason I want to do this is a have many folders with 20,000+ files in them, and i need to loop through all of them but do not want to wait for them to be compiled into an array. but just want to go through one at a time. also i'm using .net 3.5 not v4

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• Should I learn about data structures & algorithms first or the programming language java first ?

  - by happysoul

  I am a beginner to programming. Should I like learn them side by side ? Now that I know DS and Algorithms form the basis of programming..Should I learn them first ? I am confused. What should be my learning path ? I want to be a really good Java programmer.

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• Active Directory Replication across Sites slow or not working

  - by neildeadman

  I've just inherited (isn't it always the way!) a Windows Domain. The domain is spread across 2 sites. Site01 has 3 DCs & Site02 has 2 DCs. If I create a user in either site, the other DCs in that site, immediately replicate and show the new user. The new user is not shown in the other site though. If I manually run the following command, everything syncs and the new user appears: repadmin /syncall issdc01 /APed In the Inter-Site Transports DEFAULTIPSITELINK the replicate every time value is set to 180 minutes. I thought this was the solution, but on another Windows Domain, this is the same, but replication takes place across sites immediately. What can I check to resolve this issue? We are running Windows Server 2008 Results of dcdiag /test:dns show a server that is no longer part of our domain: TEST: Delegations (Del) Error: DNS server: oldserver.win.domain.com IP: [Missing glue A record]

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• Foremost custom file type not accepted by -t argument

  - by Channel72

  I'm trying to recover a deleted file on an ext3 file system using the foremost utility. The file I want to recover is a hpp C++ source code file. However, foremost does not automatically support the hpp file extension, so I have to add it to the config file. So, following the instructions on the man page, I add the following line to the config file: hpp n 50000 include include ASCII Then I run foremost as follows: $foremost -v -T -t hpp -i /dev/md0 -o /home/recover/ Instead of doing anything, it just displays the help message. If I change the hpp to htm or jpg, it works. So apparently foremost isn't accepting the custom file type I added into the config file. But I've looked over this dozens of times now, and I can't see what I'm doing wrong. I'm following the instructions exactly. Why doesn't foremost recognize the new file type I added to the config file?

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• Laptop's wifi router is not emitting signals therefore my PC and Nokia cell are not connecting to internet

  - by umer sanny

  I have a USB internet connection which I plugged into my laptop. I converted my laptop's Wifi into a Wifi router so that I can attach my PC and cell to this network and enjoy internet, but it doesn't work. I have a Dell Inspiron N5110 i7 Windows 7 64-bit laptop, Dell D865 PC and Nokia C5. My PC and cell are showing that there is a new Wifi connection available, but when I connect to it, it won't load any web page. Reason is my laptop's Wifi is not emitting any internet signals or may be some other issue which i dont know.. laptop's adapter is 802.11b/g/n I don't know why. How can I enjoy Wifi internet on laptop, PC and cell at the same time?

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• Javascript:history.back is not workin in XUL application

  - by Rajeesh

  I have created a XUL application, it has got a link for navigating to previous page. This is my link <a href="javascript:history.back();">Back</a>, unfortunately it is not working!!! In firefox is working as expected, when I run it in XUL it is not working. Any idea, why it is not working. Thanks, Rajeesh

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• apache not starting in vagrant vm

  - by jimmyjambles

  I used Puphpet.com to create a Vagrant VM to be used for web development. The problem I am having is that the VM cannot start apache on boot. $ sudo /etc/init.d/apache2 start * Starting web server apache2 * * The apache2 configtest failed. Output of config test was: apache2: Syntax error on line 36 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/authz_default.load: Cannot load /usr/lib/apache2/modules/mod_authz_default.so into server: /usr/lib/apache2/modules/mod_authz_default.so: cannot open shared object file: No such file or directory Action 'configtest' failed. The Apache error log may have more information. the system is ubuntu 12, not sure what modifications I have to make to the puppet config to fix the problem.

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• Server 2008 locks me out when not using the machine for 10 minutes after installing SP2

  - by Daniel Magliola

  I have recently installed Service Pack 2 on my Windows Server 2008 machine (which I use actively for development, and i'm always logged on to). Now, after this installation, when I don't use the machine for some time (let's say, 10 minutes), it locks itself so I have to press Ctrl+Alt+Del and log back in. I have already checked the Screen Saver settings, and it's "None", as it always has been. I also looked into power settings and everything looks right (20 mins to turn off monitor, and i haven't found any settings regarding locking me in there). Do you have any idea what I can do so that it won't lock me out after not using the machine for a while? Thanks! Daniel

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• Gnome 3 screensaver (not suspend) resume hook?

  - by Daniel

  Since whenever my laptop screen resumes sleeping (i.e. wakes up from screensaving) some settings are reset, such as keyboard backlight, I'd like to run some scripts each time this happens. I'm using gnome 3 with fedora 17 by the way. When researching this issue I came across pm-utils which allows one to hook anything to events handled by pm-utils but it seems to me monitor sleeping (i.e. screensaving) is not one of them. Looks like pm-utils only handles suspend and hybernate. So is there a way to hook up custom programs to screensaver?

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• Understanding why a 450W power supply is destroying my ATX motherboards but not mATX

  - by T. Webster

  Maybe I'm missing something really obvious here, but after going through 3 new motherboards in trying to build my new machine, I'm finally certain that the 450W power supply I bought has been destroying them. It seems like it should be simple: just connect the connectors where they fit and switch the thing on. But today after hooking it to my ASUS Sabertooth 990FX TUF Series Motherboard and switching it on, I could see and smell the smoke coming out of the motherboard. What I don't get is why I can hook this same 450W power supply up to my mATX motherboard and not run into the same problem. What am I missing here? Where on the box or manual is this? (I have 8x2 GB RAM, AMD FX-4100 3.6GHz CPU, 1 512MB ATI graphics card, 1 WD 7200 RPM SATA hard drive. )

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• Error 1069 the service did not start due to a logon failure

  - by Si

  Our CruiseControl.NET service on Win2003 Server (VMWare Virtual) was recently changed from a service account to a user account to allow for a new part of our build process to work. The new user has "Log on as a service" rights, verified by checking Local Security Settings - Local Policies - User Rights Assignment, and the user password is set to never expire. The problem I'm facing is every time the service is restarted, I get the 1069 error as described in this questions subject. I have to go into the properties of the service (log on tab) and re-enter the password, even though it hasn't changed, and the user already has the appropriate rights. Once I enter the password apply the changes, a prompt appears telling me that the user has been granted log on as a service rights. The service will then start will no problems. Not a show stopper, but a pain none-the-less. Why isn't the password persisting with the service?

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• ProFTPd not in boot: Debian

  - by 50ndr33

  I just configured my new VPS with Apache, PHP, MySQL and ProFTPd. I wanted to install a smtp server, but I was advised to do a apt-get upgrade first. I did this, and I got up a blue screen where I could choose between two alternatives. It said something about GRUB 2 installer. I chose the alternative that was already selected, the topmost. I chose not to update the GRUB2, and use the old one that was installed. Now, ProFTPd doesn't start in boot anymore. I have to /etc/init.d/proftpd start every time. How do I fix this? Should I have chosen to update GRUB2? Should I do apt-get upgrade again and try to do the same GRUB2 installer again?

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• sudo: cd: command not found when trying to get to /var/log/apache2

  - by Piers

  I'm running Ubuntu 10.04 and am having issues getting to the log files in /var/log/apache2 I can cd to most other places (I haven't tried every single file, obviously) but when I try to get to the above directory, I get the error message sudo: cd: command not found ... I've just tried something else and I can't cd when used in conjunction with sudo. I can use sudo when doing things like apt-get but it seems I can't change directory when using sudo. I haven't been on this server for a while but I know I used to be able to do this.

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• YSLow says certain CSS are not gzipped

  - by rhand

  YSlow keeps on telling me files like http://www.example.com/wp-content/plugins/q-and-a/css/q-a-plus.css?ver=1.0.6.2 are not gzipped while the gzip test tool at Feed the Bot mentions I am all good: Compressed? Yes Compression type gzip Page size (Bytes) 32,493 Compressed size (Bytes) -1 Saving (Bytes) 32,494 Compression % 100% I added this to my .htaccess: # Gzip <ifModule mod_gzip.c> mod_gzip_on Yes mod_gzip_dechunk Yes mod_gzip_item_include file .(html?|txt|css|js|php|pl)$ mod_gzip_item_include handler ^cgi-script$ mod_gzip_item_include mime ^text/.* mod_gzip_item_include mime ^application/x-javascript.* mod_gzip_item_exclude mime ^image/.* mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.* </ifModule> #Deflate <ifmodule mod_deflate.c> AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml text/css application/x-javascript application/javascript </ifmodule> The header for the file mentioned states: CF-Cache-Status MISS CF-RAY 13945df90a9a0c1d-AMS Cache-Control public, max-age=2592000 Connection keep-alive Content-Encoding gzip Content-Type application/javascript Date Thu, 12 Jun 2014 07:34:38 GMT Expires Sat, 12 Jul 2014 07:34:38 GMT Last-Modified Thu, 21 Feb 2013 01:29:18 GMT Server cloudflare-nginx Transfer-Encoding chunked Vary Accept-Encoding Any ideas what I am missing here?

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• MySql - only update some rows if the table exists - do not want an error thrown

  - by Pete Oakey

  I want to run an update query. The query will be run against multiple databases - not every database will have the table. I don't want the update to be attempted if the table does not exist. I don't want any error to be thrown - I just want the update to be ignored. Any ideas? EDIT: just to be clear - the query is executed in an automated deployment - no human interaction possible. EDIT2: the logic to say whether the update should run or not will need to be in the MySql query itself. This is not being run through a command prompt or batch or managed code.

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• Sound does not play when locking WinXP

  - by Christopher

  If I press the Windows-L combination to lock my PC the "Windows Logoff" sound does not play. It used to but at some point it stopped. I installed only trustworthy apps on my system and it is pretty clean so I don't think it is a virus. I checked the sounds in the control panel and "Windows Logoff" is set. Is there a sound associated with the key combination? Perhaps something in the registry? Any help is appreciated.

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• Brightness Controls not working on HP Dm3t

  - by Karim

  i have an HP dm3t notebook which normally comes with windows 7. after some time i figured out how to install Windows XP on it. but now i am facing a problem that the brightess controls dont work so i am unable to change the brightess. the strange thing is that all the other buttons (sound volume, mute, sleep , etc... ) works but not the 2 brightess controls. i already downloaded the "HP Quick Launch Buttons" so i am asking about suggesitions how can i enable these two buttons in windows XP or even if i can change the brightess using some kind of software. thanks

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• Hide html horizontal but not vertical scrollbar

  - by williamjones

  I have an html textarea that is of fixed width, but variable height. I would like to set overflow:scroll and be able to show a vertical scrollbar, but not a horizontal one. I am not able to use overflow:auto due to other things specific to my situation. I know there is no way using CSS 2 to show only vertical but not horizontal scrollbars. Is there anything I can do with javascript to hide the horizontal scrollbar?

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• greengeeks drupal install imagemagik 'path /usr/bin/convert' does not exists error

  - by letapjar

  I just signed up with greengeeks. I have a drupal install (6.19) on my public_html directory. The ImageMagic Toolkit can't find the binary - the error I get is "the path /usr/bin/convert" does not exist. when I use a terminal and do 'which convert' it shows /usr/bin/convert also, I have a second drupal install in an addon domain - it's home directory is above the public_html directory (in a directory called '/home/myusername/addons/seconddomain') The drupal install in the addon domain finds the imagemagick binary just fine. I am at a total loss as to why the original install cannot find the binary. The tech support guys at greengeeks have no clue either. Any ideas of things to try?

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• Asus laptop not retaining Aero theme when unplugged

  - by expiredninja

  The problem i'm having occurs when i unplug my laptop, it disregards several elements of my theme. The taskbar becomes unlocked. My desktop background is turned white. The transparency on my windows goes away. I can fix these things by running the Aero trouble shooting utility, which mentions something about the color bit depth These are these specs for the computer: Asus Laptop / Intel® Pentium® Processor / 15.6" Display / 4GB Memory Model: X54H-BD3MA SKU: 4005394 I'm sure there are duplicates of this, just not sure whick one refers to me. Thank you. Also i think someone should add an "unplugged" tag.

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• Windows7 - Mouse not working, all windows + tray act like inactive

  - by Teo.sk

  I have this problem for two days now. First when it happened, logging out and back in helped, but now this occurs right after booting. I cannot activate any window by clicking into it, and also cannot minimalise, or close it with mouse. In few applications I cannot even interact with them with mouse (e.g. clicking on links in browser). I can scroll an active window with the trackball, and sometimes everything works normally for a little while. Everything works fine, when I use keyboard for this, I can resize, move, close windows with keyboard shortcuts, etc. I ran a complete Avast! scan, but it found nothing important. Also event viewer did not show any relevant errors. Here's a log from HijackThis if it helps anything.

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• Windows 8 Activation - Product ID: Not available

  - by Guy Thomas

  The situation: I downloaded Windows 8 RTM from MSDN (I have a subscription). Naturally, I downloaded the product key as well. Windows 8 installed like a dream: lightning fast with no problems. I accepted the product key at the beginning of the install. Next, I thought I would download Updates, but they failed, so I checked the system's activation in Control Panel System. Problem: It returned "Product ID: Not available." There's nothing under "Windows activation" that I can click on, no blue links. I had a 'Chat' with MSDN, who introduced me to SLUI.exe. On Windows 8 it did nothing. (On Windows 7 it is supposed to bring up the Activation Menu). I phoned the Microsoft Activation number, they told me to contact MSDN. MSDN left the 'chat' by telling me to contact Microsoft! Hmm... I wonder if anyone at SuperUser can help?

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• Are Fortran, Cobol, Basic and Forth high level programming languages?

  - by Aaron de Windt

  Are Fortran, Cobol, Basic and Forth high level programming languages? And if not, what where the first high level programming languages? What where the first object-oriented languages?

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• Website hosted on IIS is not accessbile

  - by Tola Odejayi

  I have two sites set up in IIS on a remote machine RM; one on regular port 80, and the other on port 5773. From my local machine LM, I can access the site on 80, but I cannot access the one on 5773; I get a status code of 502 and an error code of 10060 (A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond) when I try to do this. I can access the 5773 site via IIS when I am logged into RM (i.e. by right clicking on a page on the site and going 'Browse'). I can also access pages on the 5773 site via a browser, again when I am logged into RM. I just can't do the same via a browser when I am logged into LM. I have ensured that port 5773 is open for outgoing traffic on LM. Could the problem be that I also need to ensure that port 5773 is open for inbound traffic on RM?

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• Windows Storage Server 2003: Shadow Copy (VSS) enabled for volume, but Previous Version not visible

  - by Jaap

  Windows Storage Server 2003 We have Shadow Copy (VSS) enabled for one volume. However Previous Version tab is not visible on the server on properties dialogs on any file or folder on that volume. We don't want this tab to be visible on the clients, just on the server. I've checked the VSS settings and they're definitly enabled for the volume. I'm stuck! Do I have to install the client-software on the server? The folder \%systemroot%\system32\clients\twclient contains 3 empty subdirs (location copies from docs)...

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