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• Disable pendrive blinking in Linux

  - by Joey Adams

  I recently bought a 16GB Super Talent pen drive that seems to work well for running the Ubuntu Live "CD" in persistent mode (see this for how I installed it). One slightly annoying thing, however, is that this pen drive has a bright red light on it that stays on when it's idle. Is there a way to make the light stay off at least when the pen drive is not performing IO? I'm not even sure it's possible to do. If there is (in Linux), I'm guessing it boils down to some ioctl invoked by some utility. Otherwise, I imagine it would involve hacking the firmware or simply opening up the pen drive and removing the LED :D Then again, I guess it keeps the LED on to indicate that the drive should not be removed.

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• Where Catalyst stores applist for switchable graphics?

  - by noober

  I cannot add an app to the list to manually set it to high performance (Radeon instead of Intel HD). When I browse for an exe, nothing happens, the list is still empty. So, maybe I can edit some .cfg or .ini? UPDATE This is NOT my screenshot... actually I've found it on the Net. The list with iexplore.exe is what I meant. When I click 'Browse' and choose any exe (Portal2.exe, for instance) nothing happens. The list is empty, so I cannot set mode for Portal2.exe.

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• Set up proxy for vpn server on ubuntu server 12.4

  - by Morteza Soltanabadiyan

  I have a vpn server with HTTPS, L2TP, OPENVPN, and PPTP. I want to set up a proxy on the server, so all connection that comes from vpn clients, they will use that. I created the following bash script file for it, but the proxy isn't working. gsettings set org.gnome.system.proxy mode 'manual' gsettings set org.gnome.system.proxy.http enabled true gsettings set org.gnome.system.proxy.http host 'cproxy.anadolu.edu.tr' gsettings set org.gnome.system.proxy.http port 8080 gsettings set org.gnome.system.proxy.http authentication-user 'admin' gsettings set org.gnome.system.proxy.http authentication-password 'admin' gsettings set org.gnome.system.proxy use-same-proxy true export http_proxy=http://admin:[email protected]:8080 export https_proxy=http://admin:[email protected]:8080 export HTTP_PROXY=http://admin:[email protected]:8080 export HTTPS_PROXY=http://admin:[email protected]:8080 What to do to make a global proxy for server and all vpn clients to use it automatically?

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• Installing isolated instance of MySQL on Windows using silent install with .msi

  - by Abram

  I'm trying to write an installer for an internal application we wrote. After it installs our application it then installs MySQL using the .msi installer in silent mode. I specify the install dir and data dir to that of a directory within my application's install directory, such as: msiexec /i @@MYSQL_INSTALLER_FILE@@ /qn INSTALLDIR="@@INSTALL_DIR@@\MySQL\" DATADIR="@@INSTALL_DIR@@\MySQL\" USERNAME="@@DB_USER@@" PASSWORD="@@DB_PASS@@" (the @@variable@@'s are replace by my installer routine using InstallJammer) Once installed, I use mysqld.exe to install a windows service with a custom service name and defaults file like so: mysqld.exe --install CustomMySQL --defaults-file="@@INSTALL_DIR@@\MySQL\my.ini" This works fine as long as there is not already another instance of MySQL installed. If there is it silently fails to install MySQL. Running the msi installer manually (double-click) shows an error that a previous version is already installed and just aborts. Is there a way to automate installing MySQL as an isolated instance, regardless of whether another version/instance is already installed?

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• How to input 64-bit hex values in octave

  - by Chris Ashton

  I'm trying to use Octave as a programmer's calculator. I want to input a 64-bit pointer, but when I do apparently the 64-bit value gets silently truncated to 32-bit: octave:44> base_ptr=0x1010101020202020 base_ptr = 538976288 octave:45> uint64(base_ptr) ans = 538976288 octave:46> printf("%lx\n", base_ptr) 20202020 So it seems like it's truncated the input value to the low 32-bits. I would use scanf, but the docs say it should only be used internally. How can I input the full 64-bit value? Alternately, is there some awesome free programmer's calculator out there for Windows? (I know Windows calculator has a programmer's mode but I would like arbitrary variable support). I tried using my ti-89 but it also doesn't support 64-bit hex.

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• Set Display Refresh Rate in OSX w/o External Utilities

  - by codedonut

  I have an iMac and an LG Flatron connected as a secondary monitor. The recommended resolution for the flatron is 1680x1050 @ 65.290 Hz (horiz), 59.954 Hz (vert). For some reason, OSX is choosing a slightly different set of scan rates and this is currently my best guess of why the monitor goes into power saving mode when connected to the iMac (but works fine on a PC). Now, I resolved this by installing switchResX and fudging the scan rates according to the specs in the manual. But how does one change these rates w/o 3rd party tools? Which config files need editing? Thanks

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• Untar after uploading to linux from windows

  - by Miqdad Ali

  I have created tar.gz from my linux server, and I downloaded the same to my linux system and I successfully doen untar with tar -xvf package.tar.gz. And now my issue I downloaded same package.tar.gz to the windows system then uploaded to another linux server, and tried same command tar -xvf package.tar.gz. but it getting tar: This does not look like a tar archive tar: Skipping to next header tar: Exiting with failure status due to previous errors as response. I also tried filezill manual trnasfer with binary mode. How can I do the same ? Update When I directly download to the linux system its working fine. When I downloaded to the windows system and try to extract with 7zip or winrar error is getting When I download to windows and upload to linux same error getting

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• How to diagnose repeated freezing of windows 7 (comes back alive in few seconds)

  - by Akash Kava

  I installed Windows 7 in a 3 year old machine, it installed successfully, took all drivers and running great, but what happens is every 5-6 minutes it freezes for few seconds... 30 seconds to 1 minute and then comes back alive. I checked Event Viewer, nothing matching the frozen timeline. I would appriciate any help on how to detect causing service/hardware. After it comes alive, everything runs normal, I did run task manager and checked cpu usage, at time it freezes just before and after that no task took more cpu or memory, it was like idle machine. No external usb drives or no devices, on board intel desktop board with SATA HDD, SATA hdd running in absolute good mode.

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• Can't access some websites with any browser

  - by Charles Kingsmill

  I'm running Windows 7 64-bit on a new Samsung laptop and accessing the internet okay via ethernet cable to my university's ISP. Some sites work fine (e.g. google.com) but I can't access others at all (microsoft.com, topshop.com). I can't connect to those sites in safe mode with networking. And ping and tracert both fail. There's no proxy. Other users can connect successfully to these sites using my cable and socket. I've tried all the following with no success: using various browsers (IE9, FF, Chrome) creating a new user updating drivers clearing the DNS cache using OpenDNS and Google's DNS turning off Avast tweaking the MTU running MS malicious software removal tool running Spybot S&D reviewing the hosts file disabling the IPv6 options repairing / resetting winsock settings disabling advanced javascript options I have run out of ideas... can anyone see anything I've missed??!

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• set proxy for vpn server on ubuntu server 12.4

  - by Morteza Soltanabadiyan

  I have a vpn server with HTTPS, L2TP , OPENVPN , PPTP. i want to set proxy in the server so all connection that comes from vpn clients use the proxy that i set in my server. I made a bash script file for it , but proxy not working. gsettings set org.gnome.system.proxy mode 'manual' gsettings set org.gnome.system.proxy.http enabled true gsettings set org.gnome.system.proxy.http host 'cproxy.anadolu.edu.tr' gsettings set org.gnome.system.proxy.http port 8080 gsettings set org.gnome.system.proxy.http authentication-user 'admin' gsettings set org.gnome.system.proxy.http authentication-password 'admin' gsettings set org.gnome.system.proxy use-same-proxy true export http_proxy=http://admin:[email protected]:8080 export https_proxy=http://admin:[email protected]:8080 export HTTP_PROXY=http://admin:[email protected]:8080 export HTTPS_PROXY=http://admin:[email protected]:8080 Now , i dont know what to do to make a global proxy for server and all vpn clients use it automatically.

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• Dell PR03X port replicator and DisplayPort to DVI adapter not detecting second monitor

  - by yothenberg

  Hi, I have a dell M4400 connected to a PR03X port replicator/docking station. I use the DVI port to connect it to a first Dell 2208WFP monitor and I'm trying to use a DisplayPort-to-DVI adapter to connect it to a second Dell 2208WFP monitor. The second monitor, connected via the DisplayPort-to-DVI adapter immediately goes into sleep mode and the laptop doesn't detect it. What is really weird is that it did detect it the first time I plugged it in but after I unplugged the monitor and plugged it back in it stopped working. I swapped the monitors round and it detected them both but after unplugging the monitor connected via the DisplayPort-to-DVI and plugging it in again it stopped working. Both monitors work if plugged in directly to the DVI port. Is there some way to force re-detection? Any ideas? Thanks, Mark

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• How to increase virtual hard drive space

  - by Chris

  I have a Microsoft Virutal PC hard drive (.vhd format) that's maxed out it's 16 gig hard drive space. What would be the best way to increase this diskspace? Booting into the machine (windows xp professional) and using the disk management snap in, I can see that the virtual drive has approximately 40 more unused gigs of space. Trying to use diskpart, I find out that Windows XP can't extend the boot partition. So I'm at an empass, any suggestions on how to increase the partion or to increase the actual virtual hard drive would be great. Note: The virtual hard drive is running on Windows 7 using XP mode.

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• Windows XP Pro SP3 stop error code 0x000000F4

  - by Andrew Ford

  I have a system running Windows XP Pro SP3. My wife is the primary user of this system, and the last several days in a row, when she tries to log in to the system it gives her a BSOD with the stop error code 0x000000F4. The rest of the error codes change every time she tries to log on, but that one seems to stay constant. The error it gives me is: A process or thread crucial to system operation has unexpectedly exited or been terminated. The machine will also get stuck in a boot loop, where it keeps giving me the screen saying that windows did not start successfully, and to choose how to start windows. I have tried Safe Mode, Last known Good Config, and Normally, and all have resulted in either a return to the boot loop, or BSOD. What might this mean? How can I fix it, without doing a clean install?

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• libvirt + ESX (HTTP response code 400 for call to 'Login')

  - by Coops

  I'm trying to connect to a vSphere cluster using the information from the libvirt documentation. $ virsh -c "vpx://[email protected]/dc1/dc1-cluster-e01/dc1-vsphere-e04/?no_verify=1" Enter root's password for 10.51.4.11: error: internal error HTTP response code 400 for call to 'Login' error: failed to connect to the hypervisor I seem to be able to establish a connection, but it fails with a "HTTP code 400". If I provide the incorrect password it fails with a 'login credentials' error, so it looks like I am getting a connection, but it's failing for another reason. Wireshark is no help as it's all done over SSL/TLS. Any thoughts folks? UPDATE: 15:21 28/02/11 FYI - I'm running libvirt-0.8.3 (the Ubuntu package recompiled with the ESX flag enabled). When I put virsh into debug mode it returns this: [snip] Enter root's password for 10.51.4.11: 15:19:09.011: debug : do_open:1249 : driver 3 ESX returned ERROR 15:19:09.011: debug : virUnrefConnect:294 : unref connection 0x98aa8f8 1 15:19:09.011: debug : virReleaseConnect:249 : release connection 0x98aa8f8 error: internal error HTTP response code 400 for call to 'Login' error: failed to connect to the hypervisor

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• Winlogon.exe causes C++ runtime error

  - by Evan

  Recently I've become unable to log into my Dell Precision M2400. It uses the Dell Controlpoint login GUI instead of the typical windows one, and has now started giving me a runtime error on winlogon.exe that ends with a c000021a BSOD. I have tried running through safe mode and a restore to the last known good setting with no success. Unfortunately by BIOS password is locked and the one IT guy with the password is on vacation and unreachable until after I leave for a business trip. Is there anyway to bypass the Dell logon screen and get to the default windows one? Thanks.

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• Analyze a wireless network that constantly drops/has speed issues

  - by Eddie Parker

  Hello, I'm curious what the best tools are to use for analyzing problems with a WiFi network. Here's the scenario: I have a WiFi router (Belkin N+) that's setup in AP mode. I have three RT-N13U's that I've purchased to use as 'repeaters', but I've had so many problems when more than one of them is running (bad routes) that I've only got one active. Sometimes certain boxes on my network can't talk to others, and drops are quite frequent and quite aggravating. I'm running Mac, Windows, and Linux (Gentoo) boxes on this network, so any software, or steps I should take that work for any of those boxes should be sufficient. Apologies if this is answered somewhere else - I'll close it as a dupe if so.

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• Problem launch Java on Debian: "error while loading shared libraries: libjli.so"

  - by aetaur

  I'm trying to launch Java: $ java -version java: error while loading shared libraries: libjli.so: cannot open shared object file: No such file or directory $ ldd /usr/lib/jvm/java-6-openjdk/jre/bin/java linux-gate.so.1 => (0xb779f000) libz.so.1 => /usr/lib/libz.so.1 (0xb7780000) libpthread.so.0 => /lib/i686/cmov/libpthread.so.0 (0xb7767000) libjli.so => /usr/lib/jvm/java-6-openjdk/jre/bin/../lib/i386/jli/libjli.so (0xb7762000) libdl.so.2 => /lib/i686/cmov/libdl.so.2 (0xb775e000) libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb7603000) /lib/ld-linux.so.2 (0xb77a0000 $ ls /usr/lib/jvm/java-6-openjdk/jre/bin/../lib/i386/jli/ libjli.so However Java does work under root: $ sudo java -version java version "1.6.0_18" OpenJDK Runtime Environment (IcedTea6 1.8.7) (6b18-1.8.7-2~lenny1) OpenJDK Client VM (build 14.0-b16, mixed mode, sharing) How can I launch Java as a regular user without errors?

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• Mac has become insanely slow : Processes SystemUIServer, UserEventAgent and loginwindow using a lot of memory

  - by SatheeshJM

  I have been using my Mac for for many months without any problem. But recently all of a sudden the Mac became insanely slow. I opened Activity Manager to see what was happening. For three processes SystemUIServer, UserEventAgent and loginwindow, the memory gradually increases and reaches upto 2 GB for each process. This completely hangs up my Mac. I tried the following : 1. Restart Mac 2. Restart Mac in safe mode 3. Manually kill the processes 4. Remove Date and Time from Menu bar(this was supposed to be the problem for the SysteUIServer process's memory according to many users) 5. Removed the externally connected keyboard and mouse(some had suggested this for UserEventAgent's memory) No luck with any of those. The moment I log in, the memory spikes up. Any idea what the hell is happening? Please help.

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• bash code in rc.local not excuting after bootup

  - by mrTomahawk

  Does anyone know why a system would not execute the script code within rc.local on bootup? I have a post configuration bash script that I want to run after the initial install of VMware ESX (Red Hat), and for some reason it doesn't seem to execute. I have the setup to log its start of execution and even its progress so that I can see how far it gets in case it fails at some point, but even when I look at that log, I am finding that didn't even started the execution of the script code. I already checked to see that script has execution permissions (755), what else should I be looking at? Here is the first few lines of my code: #!/bin/sh echo >> /tmp/configLog "" echo >> /tmp/configLog "Entering maintenance mode"

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• Why does the Java VM process eat up more RAM then specified in -Xmx parameter?

  - by evilpenguin

  I have multiple servers running CentOS 5.4 and only one application running on Java VM. I've configured the Java VM with the following arguments: java -Xmx4500M -server -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:NewSize=1024m -Djava.net.preferIPv4Stack=true -Dcom.sun.management.jmxremote=true The machines I'm running the VM on has 6 GB RAM and no other applications running. After a while, the java process starts to hit the swap space really hard, I get this info out of the top command: 7658 root 25 0 11.7g 3.9g 4796 S 39.4 67.3 543:54.17 java On the other hand, if I connect via JConsole, it reports the Java VM has 2.6 GB used, 4.6 GB commited and 4.6 Gb max. java -version returns: java version "1.6.0_17" Java(TM) SE Runtime Environment (build 1.6.0_17-b04) Java HotSpot(TM) 64-Bit Server VM (build 14.3-b01, mixed mode) Why is the Java VM expanding so much past it's allocated heap size? And where does that memory go, if it's not reported in JConsole?

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• Virtual box - How to add disks and move var, opt and home to them?

  - by Jarrod Roberson

  I created a CentOS 5.6 Guest OS Virtual Machine. I made the first disk 10GB, I am rapidly outgrowing it. It was suggested that I make disks for my /var, /opt and /home directories and move them so I can better manage the disks for backing up and what not. This sounds like a good idea. I know how to create the disks in Virtual Box. I have dug around Google and the internet in general and all my attempts at doing this have failed. Snapshots are awesome! I can get the drives fdisked, and I have had limited success mounting them to /mnt/var, /mnt/home and /mnt/opt, but even in single user mode ( init 1 ) I can't get the entire contents of the directories to move over, and then the machine won't reboot correctly. cd /var cp * -ax /mnt/var The /var directory in particular is not wanting to move everything to the new location. How do I format, mount and move the /var, /opt and /home to my new disks?

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• Need help diagnosing cause of BSOD

  - by n00neimp0rtant

  I've got a Windows 7 PC here that was getting very frequent BSODs. The error codes were variant (IRQL_NOT_LESS_OR_EQUAL, PAGE_FAULT_IN_NONPAGED_AREA, ATTEMPTED_WRITE_TO_READONLY_MEMORY), and it was impossible to use the computer for longer than an hour without getting one. I backed it all up and reinstalled Windows completely, thinking that it was a corrupt driver issue. Unfortunately, I'm still getting the BSODs with the same error messages on this fresh installation. This tells me that it must be some faulty piece of hardware, but I'm not sure what it would be. I ran Memtest+ on the machine, but did not get any errors after 2 passes. I also ran a few built-in recovery mode scans from the HP recovery partition. I need some ideas on how to test the rest of the hardware to solve this issue.

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• Disable thumbnails in Windows XP?

  - by quack quixote

  I regularly use Windows Explorer to browse my drives and data, and I notice little freezes and hiccups at times. It's especially noticable when browsing local or network folders with lots of video files (AVI, MKV, MPG, etc). I almost always browse in Details view, and the "Do not cache thumbnails" option is turned on. Even though I'm in "Details" mode, I'm convinced the sluggishness is due to Windows trying to generate thumbnails for the video files, so I want to disable thumbnail generation for these files. I occasionally use Thumbnails view for browsing image files, so I don't want to disable all thumbnails. But for future reference, this might be good to know. So I have three questions about disabling Windows thumbnail generation: How do I disable thumbnail generation for all non-image files? How do I disable thumbnail generation for all files? How do I disable thumbnail generation for one specific filetype? And finally, how do I undo (re-enable thumbnails) once I've performed one of the above?

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• Nested RDP and ILO sessions, latency and keystroke repetition.

  - by ewwhite

  I'm working on a remote server installation entirely through ILO. Due to the software application and environment, my access is restricted to a Windows server that I must access through RDP. Going from that system to the target server is accomplished via HP ILO3. I'm trying to run a CentOS installation in an environment where I can't use a kickstart. I'm doing this via text mode, but the keystrokes are repeating randomly and it's difficult to select the proper installation options. I'm doing this using Microsoft's native RDP client (on Mac and Windows). I've also noticed this before when running installations or doing remote work in nested sessions. Is there a nice fix for this, or it it simply a function of the protocol?

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• Windows Vista stuck on crcdisk.sys

  - by hristo

  Hello everyone, I'm here with some Vista-trouble. After a cigarette-break I returned to my desk to find my PC with a black screen, and after failing to wake it up did a forced restart. I haven't been installing any hardware or software for quite a while. Ever since, Vista gets stuck on the animated 'Microsoft Corporation' progress bar with the animation still running and no hard disk activity. With an F8 and safe-mode + prompt I saw that the boot gets stuck at crcdisk.sys. I'm running Vista64 SP1. What could the problem be? Any advice?

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