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• My Portable Hard Drive with USB3 didn't work when connected to My Laptop, but it working with USB2 properly

  - by Mohammad Hasan Esfahanian

  I have Western Digital My Passport Essential Portable Hard Drive with USB3 and Model:WDBACY5000ABK-EESN. Until about two or three months ago when I connected that to My Laptop USB3 port, that worked very well. But now when I'm connecting that to My device, The system does not detect any Hard Drives. When plug in the USB2 port is working properly. I connected that to another Laptop whit USB3 port but I had the same problem. I tested My Laptop port with a Flash Memory by USB3 and ports were healthy and I'm sure they are working. For this issue, I changed the windows, but it still did not work. What can I do? Thanks in advance.

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• How to authorize standard users to install drivers

  - by Dr I

  I'm currently looking for a way to autorize my non administrators users to perform an installation of drivers. Here is the speech: All my users are standard users, they got a VirtualBox Hypervisor if they need the administrator rights. But if they put an USB device on the local machine and try to redirect the device to the Virtual Machine, Windows ask for some Administrator rights. I've try to set up those GPO: -Allow standard users to install drivers. -Install WHQL Drivers: Allow Silently. I don't know how to do this.

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• Ubuntu/Linux version recommendation for HP dv6 3122TX?

  - by sanjayav

  I purchased a HP dv6 3122TX recently and after installing Ubuntu 10.10 64 bit I ran into multiple issues like, The wireless driver is not supported by Uubntu. (1) [The driver is RaLink RT3090 ] The ethernet stopped working sometimes for no reason [The driver is Realtek RTL8111/8168B ] "Corrupted low memory at ..." issue which is described as a kernel bug in Ubuntu support forums. (It started to take me to a terminal instead of the GUI and couldn't start x server after that) As I'm not an expert Ubuntu user I got fed up of all these issue and got back to Windows 7. But I need an Ubuntu installation up and running for my development work. What are your suggestions about a reasonable Ubuntu version that I should try? Or a different Linux variation? Should I stick to a 32-bit version? It'd be great anyone can give some advice on this issue.

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• nginx proxy pass redirects ignore port

  - by Paul

  So I'm setting up a virtual path when pointing at a node.js app in my nginx conf. the relevant section looks like so: location /app { rewrite /app/(.*) /$1 break; proxy_pass http://localhost:3000; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } Works great, except that when my node.js app (an express app) calls a redirect. As an example, the dev box is running nginx on port 8080, and so the url's to the root of the node app looks like: http://localhost:8080/app When I call a redirect to '/app' from node, the actual redirect goes to: http://localhost/app

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• What are possible causes of keyboard lag on my desktop machine?

  - by Jer

  I am running Windows 7 and began experiencing keyboard lag in most applications, and it seems to be getting worse. Certain websites are the worst - on some, I can type a sentence, take my hands off the keyboard, and watch the characters continue to appear on the screen for several seconds. Others are not as bad, but still noticeable and annoying. I just started noticing it in non-browser applications (e.g. Outlook) as well. I've disabled all extensions in Firefox, rebooted my machine, and that did nothing. There is nothing using much memory or cpu cycles, even when the lag is occurring. This is a machine at work with very strict controls over what can be installed, so the chances of any kind of malware are very slim. I don't believe anything as been installed since before the problem started. What could be causing this, and/or what can I do to debug?

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• Xnest from Mac OSX to HP UX

  - by Burbas

  Hi, I'm trying to connect to my HP/UX machine from Mac OS X using Xnest. The problem is that I can not get the keyboard to work. I can see the login-prompt, but unable to type in my username. The connection is done by: Xnest :1 -query 192.168.0.193 -geometry 1280x1024 and it gives me some errors: (EE) AIGLX error: dlopen of /usr/X11/lib/dri/swrast_dri.so failed (dlopen(/usr/X11/lib/dri/swrast_dri.so, 5): image not found) (EE) GLX: could not load software renderer (EE) XKB: Couldn't open rules file /usr/X11/share/X11/xkb/rules/base (EE) XKB: No components provided for device Virtual core keyboard Couldn't get keyboard. I hope there is someone here who might have the answer :-).

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• SQL server environment

  - by Olegas D

  Hello I'm considering a bit of changes in current sales environment. And trying to check all cons and pros. Current situation. SQL server (quite decent HP server - server1) + backup server (smaller Dell server - server2). all sql files and sql server itself are on the server1. If something goes wrong with server1 I will have to manually move to server2. Connecting to the sql server: 1 HQ (where server located) + 4 sites through VPN. Now I'm considering 2 scenarios: Buy some storage system + update existing servers (add ram, upgrade processors) and go for VMWare ESXI. Rent a server at a datacenter + rent virtual server in case real server goes down. Also rent some space at data storage to keep SQL files there. Have anyone considered these things and maybe found some good pros/cons list? ;) Thanks

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• How to benchmark kernel (-Os vs -O2)

  - by NightwishFan

  It seems logical to me that on a 64-bit kernel compiling it to optimize for size might help overall. (My distro of choice uses -O2) It has the benefits of more registers and memory and perhaps less cache contention than normal optimized code. I have a kernel compiled like this and it seems excellent. However my question is how can I prove this? I like using Phoronix for "real world" sort of benchmarks so I would prefer to test cases like that. What should I pick to test? Does anyone else have any alternatives? Thank you very much in advance.

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• Shuttle FB51 mobo does not boot with external USB drive attached [closed]

  - by user127236

  I am repurposing an old Alienware desktop as a home media server. The PC is based on the Shuttle FB51 motherboard. The BIOS is a Phoenix Version 6.00 PG, release date 12/16/2002. I have loaded Ubuntu 12.04 LTS on the internal hard drive. I am using a Western Digital WD Elements 1.5 TB USB 2.0 Desktop External Hard Drive for media storage. When the external drive is plugged in and the PC is powered on, it freezes very early in the BIOS self-test, even before it begins the memory test. If I unplug the drive, the self-test proceeds without further problems. I can plug the USB drive back in when the self-test is complete, and Ubuntu will boot and find the external drive normally. I've tried several changes to the BIOS setup without finding a cure for the boot issue. Any assistance gratefully accepted. JGB

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• Installing then Running VMware or VirtualBox causes my Windows 7 PC to not boot up after shutting down?

  - by Rick

  At my work I am provided with a Windows 7 PC but I am a programmer and Windows gives me problems for doing some types of development so I want to have a virtual Ubuntu Linux machine that I can use for some things. However, I have tried with both VirtualBox and VMware and I am able to install the latest Ubuntu and run it but then when I try to restart / start the computer after it was shut down, I am unable to boot into Windows normally and end up having to go into Safe mode and then use the system restore to get my system back up and working. I am puzzled by this and would appreciate if anyone has any idea why it would be doing this, I have searched on this but can't find anything. Thanks for any advice

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• Extract Certs from Apache

  - by user271619

  Recently I've had to uninstall a single Self-Signed SSL Certificate from one of my Apache boxes, specifically for an outside party. That's not really a problem for me, since it was easy. What confuses me is how they knew I had a self-signed certificate. The domain I provided them was not related to the domain with the self-signed certificate. Does this mean Apache publicizes the Virtual hosts in the httpd.conf file? I asked the outside party what software they used to extract information from my server, and they provided this GitHub link: https://gist.github.com/4ndrej/4547029 I figured I'd ask the community first, before I attempt installing the Java program.

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• Windows 7 x64 Hard Freezing (again)

  - by Lanissum

  Awhile ago, my computer was randomly freezing a few minutes after booting, and I ended up replacing the CPU and mobo after testing the RAM and hard drive, I also couldn't find anything wrong with the video card. So after replacing the presumably faulty hardware, everything worked fine for about a month and a half. All of a sudden, My computer is randomly freezing a few minutes after loading up any intensive application (games, mostly). Most of the time it just freezes with the current frame until I hard reset, although once it printed a BSOD message stating that dxgmms1.sys was to blame. The only difference between these two episodes I can think of is that I can do word/internet/work without issue now, as opposed to the near uselessness my computer was rendered last time. For those of you who want to know, I tested my memory with memtest86 (for 64 bit machines). I can't figure out what could have started this latest round of issues, the event logger just states that a kernel-power event has occurred (like last time) but I think thats just a generic "this machine has rebooted after a sudden shutdown" message.

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• server performance metrics report and practicality

  - by Anjesh

  I have a need of preparing web server (apache-php) performance report containing important metrics like CPU usage, disk io, memory usage on user basis. Couple of domains are hosted in the same server and they run from separate users using fcgi. The reason being sometimes some hosted applications take lots of cpu usage, making the server slow for other applications (running as separate users). i am planning to develop scripts for this, as i can't seem to find any simple utilities for this purpose. This script will take snapshots of the user wise metrics at defined periods say 15 minutes and record it. Any abnormalities will be reported via emails. How practical is that? also would be interesting to know what else need to be recorded.

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• nagiosgraph new services not showing

  - by Eleven-Two

  I am using Nagios Core with Nagiosgraph and had only enabled graphing for cpu usage for a while. This worked fine, but now i wanted to add some more services (for example memory usage). The new services are not working (no rrd data is generated). The Nagiosgraph site only says "no data available" and I get no error in apache log, nagiosgraph.log or nagiosgraph-cgi.log. The new services are standard services (nsclient++ MEMUSE for example) and of course they are included in the map file. If I execute the checks manually, it shows also the perfdata. I added the services by enabling the "graphed-service" use. Did I miss something?

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• How do I troubleshoot a server I can't get logged into?

  - by Karl

  This morning I am unable to log into SQL Server because it appears to be busy doing something, so much so that CPU usage is constantly at 98%-99%. I am guessing that something has gone wrong with the maintenance plan that ran over the weekend, but I can't get into the error logs see what is happening. On logging in I keep getting messages like "insufficiently memory in the buffer pool" and "the server is not responding". Is there any way I can figure out what is happening without logging onto to the server? Or some way I can squeeze in a login?

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• What is bottleneck of my Apache server ?

  - by rrh

  $netstat -anp | grep :80 | grep TIME_WAIT | wc -l 840 $netstat -anp |grep :80 | grep ESTABLISHED | wc -l 50 memory usage : 850MB / 1000MB apache2.conf contains.. <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 150 MaxRequestsPerChild 0 </IfModule> <IfModule mpm_worker_module> StartServers 2 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 150 MaxRequestsPerChild 0 </IfModule> <IfModule mpm_event_module> StartServers 2 MaxClients 150 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> Are there any configuration changes that can help me or its just my RAM the bottleneck here? Urgent help needed..!!

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• Managing MS Exchange server-side email rules on Mac OS X?

  - by Doug Harris

  Has anybody found an easy way to manage server-side rules from Mac OS X? Here's a brief list of what I know doesn't work: Entourage 2008 - it supports client rules, but not server rules. No good, there are certain actions that should happen before I open my laptop or check my email on my iPhone. Apple Mail - same as Entourage, but at least I don't get as frustrated since, unlike Entourage, this isn't a Microsoft product. Web mail (aka Outlook Web Access) - perhaps you can manage rule in the fancy version which Exchange serves to IE, but not with the browsers available on a Mac. I manage this now by launching a VMWare virtual machine running Windows XP and Outlook. I don't count that as an easy way. Update, post release of Office 2011 Does MS Outlook 2011 have the ability to manage server-side rules? Update, post installation of Office 2011 No. Outlook 2011 doesn't have this ability. I've already removed my account from Outlook and switched back to Apple Mail and iCal

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• Starting VMs with an executable with as low overhead as possible

  - by Robert Koritnik

  Is there a solution to create a virtual machine and start it by having an executable file, that will start the machine? If possible to start as quickly as possible. Strange situation? Not at all. Read on... Real life scenario Since we can't have domain controller on a non-server OS it would be nice to have domain controller in an as thin as possible machine (possibly Samba or similar because we'd like to make it startup as quickly as possible - in a matter of a few seconds) packed in a single executable. We could then configure our non-server OS to run the executable when it starts and before user logs in. This would make it possible to login into a domain.

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• How do I remote desktop to my work's Windows box from my Mac at home through VPN?

  - by CT.

  I would like to remote desktop from my Macbook to my Work's laptop from home. I connect to the work's network via Cisco VPN. My Cisco VPN clients connects fine in Mac OS X but I am unable to remote desktop. I am also unable to ping my work laptop. The laptop is powered on and not sleeping. I can access it via LogMeIn. If I were to actually pug into our network at the building. I can remote desktop to my work laptop from my Macbook. If I use a Windows virtual machine and connect using the Windows Cisco VPN client, I am able to RDP and ping my work laptop. What is wrong with my OS X VPN connection?

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• ErrorDocument 404 not found in non-existent subdomain

  - by Question Overflow

  I am trying to get the apache server to issue a custom 404 error for invalid subdomains. The following is the relevant part of the httpd configuration: Alias /err/ "/var/www/error/" ErrorDocument 404 /err/HTTP_NOT_FOUND.html.var <VirtualHost *:80> # the default virtual host ServerName site_not_found Redirect 404 / </VirtualHost> <VirtualHost *:80> ServerName example.com ServerAlias ??.example.com </VirtualHost> What I get instead is this: Not Found The requested URL / was not found on this server. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request. I don't understand why a URL to non-existent-subdomain.example.com produces a 404 error without custom error as shown above while a URL to eg.example.com/non-existent-file produces the full custom 404 error. Can someone advise on this. Thanks.

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• Mac OS X Server 10.6.6 "disables" CPU in VMware Fusion

  - by wjlafrance

  I installed Mac OS X Server 10.6.0 in VMWare Fusion the other night and it worked perfectly, until I ran Software Update. I upgraded to 10.6.6 through the combo updater, and now when I start the VM it says: "The CPU has been disabled by the guest operating system. You will need to power off or reset the virtual machine at this point." I've switched the operating system in the options to OS X Server 32bit, 64bit, and even to Windows 7, and nothing has worked. Does anyone have any ideas?

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• Inverting colors of a PDF

  - by legr3c

  I need to invert all the colors of a PDF document (background, text, graphics, and images). I want it persistent in the file so the inverted viewing options, that some viewers offer, won't help. Rasterizing the document and using image manipulation software is also not an option. I read somewhere that this can be done with the Enfocus PitStop plugin for Acrobat. However I didn't see a corresponding command anywhere. Am I missing something? Then I read that the ARTS PDF Crackerjack plugin for Acrobat offers negative printing so I tried that, too. The option is there but it simply doesn't work. I have been searching for very long for a way to do this. It seems like a common enough task but I just can't find out how to do it. Are there maybe any virtual printer drivers or something of the sort that support negative printing? Can anyone help?

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• Is there a "restore point" in Linux (Debian/Ubuntu) like Windows?

  - by Somebody still uses you MS-DOS

  I'm working directly in an Ubuntu Virtual Machine (VM). Some updates (like kernel) were available at the update manager. If I weren't using a VM, I wouldn't update it since it's a risk to break something. Since it's a VM, you can create a Snapshot or export an appliance and restore if something goes wrong. Suppose I'm not using a VM with a Debian/Ubuntu installation. Is there a install-restore approach that doesn't depend in a VM configuration to restore your system exactly before an upgrade (Like a "Restore Point" in Windows), being easy to restore like a VM appliance? (I'm not looking for "ghost images" or something like that (Norton Ghost, Clonezilla, etc), I'm looking for something builtin in the Linux System)

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• Server unresponsive, messages shown on console but not in log files

  - by raistlin majere

  I'm using Ubuntu Server 10.04.4, and once in a while the server hangs (once a month) and is totally unresponsive. The tty is flooded with messages like these. The problem is that these messages are not in my log files after reboot. How to log these messages so that I can analyze them later? In the current logs I can't see anything that would tell me why this is happening. I would also appreciate if anybody can tell from those messages what's going on. This server is a guest virtual machine. The host server is also Ubuntu server 10.04 with KVM/QEMU.

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• Web server replica not working in other server

  - by user761076

  I have a Drupal installation (php+mysql) in a server, and I'm trying to copy this installation to another server with the same configuration, same physical and virtual path, same db configuration, etc. The thing is, in my new server I get the homepage to work, but not the inner pages, so I guess has something to do with rewrite (mod_rewrite is installed) (both .htaccess are the same). When I access http://localhost/myweb/content/mypage I get a 404 or a "Forbidden" if I uncomment this in httpd.conf (original httpd.conf does not have this entry): <Directory path/to/docs"> DirectoryIndex index.php index.html Options Indexes FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> Any clue? Thank you

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