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• How does Windows Remote Desktop Connection Work?

  - by Devoted

  How does Windows Remote Desktop connection work? An IP address is used to connect to the computer but....how can that IP be accessed from anywhere? If, for example, the IP address is 128.10.10.10, there MUST be another 128.10.10.10 somewhere else in the world. How does Remote Desktop know which one to connect to? Thanks so much EDIT: Thank you! Answers cleared this up quite a bit. But if my remote desktop connection suddenly stopped working and I didn't change anything, how do I even start to diagnose what may be the problem? I can remote connect to it from a LAN computer though...

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• "Automatically Connect" option for Mobile Broadband crashes GNOME Shell, how to remove network configurations?

  - by Kush

  I'm using Fedora 15, in GNOME Shell, my mobile broadband connection was working absolutely fine, until I set the connection type to Connect Automatically using nm-connection-manager. Now, when I start the Fedora, the Top panel network icon shows red exclamation symbol and when I click it, instead of showing me available networks' list, it shows only "Network Settings", and when I open it, it shows GNOME 3's new Network Manager app, and it pops out the dialog saying that, "Current network settings service is incompatible with this version". And after a few seconds of log in, the shell freezes and all I can do is log out using Ctrl+Alt+BackSpace. I'm facing this problem since I opened old network manager app using nm-connection-manager in the run dialog, and editing my connection to connect automatically. After logging in to the shell I somehow managed to delete that connection from the same app and created a new one, but the problem still exists. How can I delete all network preferences (by deleting its configuration files from my home directory or something like that) and reset the GNOME 3's network manager to its default state?

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• Another installation is in progress

  - by Steven

  Why I try to install any program I see "Another installation is in progress. You must complete that installation before continuing this one." error. Googled the web and found that solution would be to delete HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\InProgress registry key and reboot. That didn't help me unfortunately. When I open "Services" mmc snapin it shows that "Windows Installer" service is "Started", but "Start/Stop/Pause/Restart" buttons are grayed (the interesting thing is that startup type = "Manual", so I don't really know how to explain that I already have 2 instances of msiexec.exe in memory and one instance is consuming 50Mb of memory. Looks like there's a serious issue with my installer service - is there any way to fix it (please do mind - I can't install anything!) Any help would be greatly appreciated.

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• Detecting/Reactivating serial port that becomes inactive on Ubuntu Linux 10.10

  - by Tom

  I am using a usb2serial port to communicate with some old equipment (using my code built upon the boost asio library - I think my code is fine because it works almost all of the time). Every so often (maybe once every few days) the communication stops with my device with no error at all - the device just does not respond. I then restart my computer and everything is fine again. Does anyone know where I can start to analyse this problem? My serial port loads up fine (in /dev/ttyUSB0) and the boost library does not throw an error. The device just does not respond. If I restart the device no change - only when I restart my pc does it make a difference. I have also tried unplugging and replugging the usb connector. Does anyone know what gets cleared in the reboot (w.r.t the serial device) or what I can probe when the problem happens again (rather than just restarting with hope)

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• Scan dis problem on xp

  - by Sarfraz Ahmed

  hi, I have four drives on my computer. The problem is that each time i start a computer the scan disk check runs for a drive even if i shut down my computer properly. I ran the thorough scandisk check but still for that drive, the scandisk check is always performed no matter what. I wonder what is wrong although everything is fine and accessible along with drive data. Could you guys please help me out of this? I am using Windows XP SP2. Thanks

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• Logstash shipper & server on the samebox

  - by keftes

  I'm trying to setup a central logstash configuration. However I would like to be sending my logs through syslog-ng and not third party shippers. This means that my logstash server is accepting via syslog-ng all the logs from the agents. I then need to install a logstash process that will be reading from /var/log/syslog-clients/* and grabbing all the log files that are sent to the central log server. These logs will then be sent to redis on the same VM. In theory I need to also configure a second logstash process that will read from redis and start indexing the logs and send them to elasticsearch. My question: Do I have to use two different logstash processes (shipper & server) even if I am in the same box (I want one log server instance)? Is there any way to just have one logstash configuration and have the process read from syslog-ng --- write to redis and also read from redis --- output to elastic search ? Diagram of my setup: [client]-------syslog-ng--- [log server] ---syslog-ng <----logstash-shipper --- redis <----logstash-server ---- elastic-search <--- kibana

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• How do I view the location of an swf file that is obscured somehow.

  - by atticus

  Specifically, I'm trying to view Elmo's Keyboard-o-rama fullscreen. The original swf file at www.sesameworkshop.org/uploaded-images/9495524/additional/main_game-6.swf has been moved and obscured. For a toddler, this game really needs to be full screen! The toddler doesn't mind too much and has already lost interest in the game for the day. But it's just driving me crazy. I've tried the usual method of viewing the page info in Firefox to no avail. And before people start trying to delete this for being game specific, I would like to know how to do this for any obfuscated swf location, not just games. Thanks in advance.

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• Using "enterprise" switches in home network?

  - by Industrial

  Hi everyone, After more than 12 years working with computers, I am still way behind when it comes to networking, so please bear with me :) As of this Christmas, the number of computers in my home has increased and it's well about time to upgrade the current network hardware in order to offer LAN connection to all computers. Trying to find a cheap solution, A close friend offered me a great deal on a "enterprise-class" Switch from HP (more LAN ports than I would ever need), at the same price as what a brand new Netgear or D-link Switch with 6/8 ports would cost me in retail. Would it be common sense to get this one and start using it immediately and never again have to worry about running out of LAN connections, or am I taking on a bigger bite than what I could chew?

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• JSP / Tomcat / Apache setup overview on Fedora Core

  - by Richard T

  Hi Folks, For someone with so much Java experience, boy do I feel clueless - thanks in advance for your help in my grocking the present (Feb, 2010) JSP environment. Here's what I am hoping to learn: Do I understand correctly that most people use Apache to "front-end" their Tomcat servers, such that Apache "talks" directly to web clients and "proxies" Tomcat servers? Do I understand correctly that Apache isn't capable of serving JSP directly but requires a server (like Tomcat)? Is there an RPM package for Fedora Core so I don't have to build one myself? Or, does Fedora Core's package installer do a good job on this one from source code? (Some do, some don't!) While I'm here asking questions; Does Tomcat come with a working example that one can start hacking on as a way to get started quickly? If not, got a good suggestion? Thanks folks, RT

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• "Request not supported" in IPCONFIG (WinXP SP3)

  - by pablog

  In a customer PC (Windows XP SP3), suddenly the network went down: the network adapter appears with an error mark. I replaced the network card, but the new one does the same thing. When I enter IPCONFIG, XP shows this error (in standard and safe mode): Internal error occurred Request not supported Unable to query host name If I start the system with a boot cd the PC runs fine, so the problem seems to be in the XP installation. I tried: uninstalling and reinstalling the network card in the Device Manager disabling and reenabling the card netsh int ip reset netsh winsock reset catalog and a couple of "reset" programs (WinsockxpFix.exe, etc) with no luck. Is there any way to fix it without reinstalling XP? TIA, Pablo

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• Folder Size Column on Explorer on Windows Vista/Seven

  - by Click Ok

  I'm a big fan of FolderSize, but unfortunately it works only on Windows XP. Even reading this and this, I'm not convinced that I cannot to have a column showing the folder size on Windows Explorer. Even with all "problems" FolderSize worked like a charm in WindowsXP. In a sysadmin life, FolderSize is explendid. Before select a lot of folders to send to backup in DVDs, I can check directly in Windows Explorer the size of the folders and get a set of folders with 4.3Gb to burn in a DVD. In another situation, I can view in the root folder the size of the bigger folders in the hard drive and start a good strategy of backup/partitioning/transfer to another drive/etc. If desired, I can tell a lot of another needs that in my sysadmin life I need a tool like FolderSize... There is someone that is actively developing a solution to show folder size on Windows Explorer in Vista/Seven Windows? What the problems that I can face if I develop myself that "add-in" for Windows Explorer?

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• FreeNX Server w/ nxagent 3.5 not able to create shadow sessions

  - by Jenna Whitehouse

  I am running a FreeNX server on Ubuntu 11.10 and am unable to do session shadowing. I get the authorization prompt, but the shadow client crashes after. The NX server log in the user's .nx directory is as follows: Error: Aborting session with 'Server is already active for display 3000 If this server is no longer running, remove /tmp/.X3000-lock and start again'. Session: Aborting session at 'Mon Oct 1 14:26:44 2012'. Session: Session aborted at 'Mon Oct 1 14:26:44 2012'. This then deletes the lock file, which is the lock file for the initial Unix session and crashes out. Everything works for a normal session, and shadowing works up to the authorization prompt. I am using this software: Ubuntu 11.10 freenx-server 0.7.3.zgit.120322.977c28d-0~ppa11 nx-common 0.7.3.zgit.120322.977c28d-0~ppa11 nxagent 1:3.5.0-1-2-0ubuntu1ppa8 nxlibs 1:3.5.0-1-2-0ubuntu1ppa8 Any help is appreciated, thanks!

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• What software can I use to pinpoint why Windows Server 2003 takes 15 seconds for any operation?

  - by Dr. Zim

  Ram is about 1/2 in use, four CPUs are all but idle. I tried "Microsoft Server Performance Advisor" with no luck. No entries in the Event Log for hardware failures, etc. And yet I can click on the start menu and wait 15 seconds for any new attempt. Launching software takes 30 seconds to respond. The server has an 8 drive WD RE 250 gig each Dell Perc 6 Sata raid array with Intel gigabit network cards. Anyone have any software titles that could analyze what is going wrong with this server?

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• Sysprep on Windows 7 for a non-windows admin?

  - by askvictor

  I'm needing to use sysprep to deploy some Windows 7 machines. I can't find any resources that explain this very easily. In particular, I've loaded all of the programs I want for the image onto a computer. If I want to use prepares this for cloning onto 200 other machines, what steps would I need to take? Or do I need to start again, creating the image using 'audit' mode? The machines I'm using come pre-configured from the manufacturer with a host of custom drivers that wouldn't be fun to re-install - I'd rather use their base image to build upon. Cheers, Victor

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• Scan disk runs on every boot with Windows XP

  - by Sarfraz Ahmed

  I have four drives on my computer. The problem is that each time I start the computer the scan disk check (CHKDSK) runs for a drive even if I shut down my computer properly. I ran the thorough scan disk check but still for that drive, the scan disk check is always performed no matter what. I wonder what is wrong although everything is fine and accessible along with drive data. Could you guys please help me out of this? I am using Windows XP SP2. Thanks.

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• Windows 7 x64 Boot Camp Partition, Snow Leopard on MBP, and VMWare Fusion 2.x/3 - Endless Repair Sta

  - by Keith Fitzgerald

  Thanks in advance for your help! As the title states, I have Windows 7 x64 Boot Camp Partition, Snow Leopard on MBP, and VMWare Fusion 2.x/3.x. I'm trying to open the partition as a vm and I get into an endless cycle where windows tries to Repair Start Up disk for a very long time before failing. The boot camp partition runs fine natively. Has anyone experienced this? Can someone provide or link a remedy? My google fu is failing miserably ....

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• Hebrew (utf8) characters in windows cmd console

  - by epeleg

  I previously asked this Q: utf8 hebrew on mysql console on debian (via putty on windows) And managed to get it working by starting mysql with --default-character-set=utf8 and setting putty to show utf8 as well. Now I need to do the same but on a windows server. The data is again the same but when I start mysql with --default-character-set=utf8 it I see multuple characters where I am supposed to see hebrew. I think the problem is with the set up of windows cmd console that it does not properly display utf8. any ideas ?

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• How can I set the PowerShell default window size in Windows 7?

  - by Nate

  In Windows 7, how can I set the default PowerShell window size? By default it comes up too tall for the netbook screen I am working with. I have tried the usual way of changing the size—by clicking in the upper-left corner and choosing “Properties”—but it tells me: Unable to modify the shortcut: . Check to make sure it has not been deleted or renamed. (yes, there is a dot in the middle of the error message) I also tried right-clicking on the PowerShell shortcut in the Start menu and changing properties there, however, the changes don’t seem to stick.

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• Grepping grep output fails

  - by viraptor

  I'm trying to grep the output of ngrep. Unfortunately when I add another grep to the pipeline, I get no output at all. It can be some other command too - cat / grep / tee - everything breaks the chain. Example: # this works: $ ngrep -l -q -T -Wbyline -d any udp and port 5060 | egrep -B1 '^SIP/2.0 180' -- U +1.469535 xxx:5060 -> xxx:5060 SIP/2.0 180 Ringing. -- U +0.001384 xxx:5060 -> xxx:2048 SIP/2.0 180 Ringing. but #these don't: $ ngrep -l -q -T -Wbyline -d any udp and port 5060 | egrep -B1 '^SIP/2.0 180' | egrep '^U' $ ngrep -l -q -T -Wbyline -d any udp and port 5060 | egrep -B1 '^SIP/2.0 180' | cat $ ngrep -l -q -T -Wbyline -d any udp and port 5060 | egrep -B1 '^SIP/2.0 180' | tee test If I use cat somefile instead of ngrep at the start, everything works as expected. Any ideas what could go wrong here?

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• Network architecture when using Rackspace's Cloud

  - by brianz

  I'm planning on launching a web application soon, and have decided on using Rackspace's Cloud offering with Debian. I'm not expecting that much traffic to start, but would rather get the architecture correct now even with the small VPSs. The thing I'm not quite sure about is how many VPSs I should get. At a minimum, I know I'll want three VPSs: Two Apache webservers One server for MySQL I'd also like: Nginx load balancer MySQL replication memcached I'm not sure where those last three processes should be running. Can the load balancer run on the same machine as the MySQL slave, or should they each run on their own machine? Does memcached run alongside the webservers or on different machines?

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• Entering Safe Mode problem

  - by NikolaysGS

  Hi! When i start my pc i get following message: The Logon User Interface DLL RtlGina2.dll failed to load I found solution here But i ca not log into my pc, neither in safe/normal mode. It is interesting that first time i succeed loging into safe mode, but change msconfig boot.ini to safemode with networking where i can not log in. And now every time no matter what i am choosing from F8 menu, i enter in safe mode with networking(where i get following error). So is it any way to log in back into "pure" safe mode. I am not sure that the question it`s clear enough ;-(

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• Problem with kickstart

  - by user70523

  Hi, I created a kickstart file ks.cfg and then I have put that in the bootable disk*(Ubuntu 10.04)* and then added the following line to the isolinux.cfg linux ks=ks.cfg and have not removed any other lines from the isoconfig.cfg file and then while installing the installation is not automated,again it is asking for language and all. If i removed include menu.cfg or any other line from isolinux.cfg i am getting a boot error. What should i do now to automate the installation.Where should i add the boot parameters so that installation will start from the ks.cfg . Thanks and Regards Ravi Kumar

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• Bash Shell Hangs on ?+Tab-complete

  - by michaelmichael

  I often use tab completion in Bash when completing directories, but I find that it hangs for an unacceptable amount of time if I accidentally include a question mark in the directory. I'd like to know why and how to prevent it if possible. Here's the scenario: I start a command and use the ~ key to represent home: ls ~?Desktop/co Oops! I held down the Shift for a split-second too long. I had intended for ? to be /. But (oh no!) muscle memory has already kicked in. I've hit the Tab before I noticed the mistake. Now I'm stuck waiting for the shell to beep angrily at me. Usually a minute or two. What happened? Why did the question mark cause it to hang and eventually beep? Any way to stop it from hanging?

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• Bash window title not restored after exit

  - by forthrin

  I have a problem with the window title in the Terminal window on OS X: Start Terminal. Window title is "bash" Type "ssh external" to connect to an external server. Window title is "user@external:~" Type "exit". I am now back at my local machine, but the window title still says "user@external:~". How do I make the window title return to "bash", which I assume would be correct since I have logged out of the external server and returned to my local machine? My ~/.bash_profile has the same PS1 value: export PS1='\w$ '

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• Running Python scripts in a browser

  - by sunwukung

  I want to start learning Python - and I'm having trouble getting scripts to load up in a browser (using Wamp). So far I've tried the following: 1: add the following lines to httpd.conf: AddHandler cgi-script .py Options ExecCGI I navigate to localhost/path/to/script/myscript.py but get an Internal Server error. 2: downloaded mod_wsgi-win32-ap22py26-3.0.so - renamed to mod_wsgi (running Wamp with Apache 2.2) added the following lines to httpd.conf AddHandler mod_wsgi .py WSGIScriptAlias /wsgi/ "path/to/my/pythonscripts/folder/" but when I navigate to the script - it renders the script in it's entirety i.e. #!c:/Python26/python.exe -u print "hello world" I managed to get CherryPy working, but ideally I want to learn the language in a relatively raw context before digging into a framework. Can anyone give me some pointers?

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