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• Weird behaviour/rendering of backspace in Terminal.app when SSHing into zsh using tmux/screen

  - by Nils Riedemann

  Hi there, I just stumbled upon a weird problem. When I SSH into my server (centos, zsh) and I type some stuff and hit backspace It looks like a space - but internally it really deleted the characters. ls -l a Note that the space between land a is actually when I hit backspace. When I now hit return ls -a gets executed. This is only in zsh, in bash it works fine. Hope anyone has an idea what this is all about and how to fix this. Update: Only happens when using tmux/screen

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• How can I redirect URLs using the proxy module in Apache?

  - by LearningIT

  This seems like a super-basic question but I am having a hard time tracking down a straightforward solution, so appreciate any help and patience with me on this: I want to configure my Apache proxy server to redirect certain URLs so that, for example, a web browser HTTP request for www.olddomain.com gets passed to the proxy server which then routes the request to www.newdomain.com which sends a response to the proxy server which then passes it back to the web browser. Seems so simple, yet I don't see how to achieve this on Apache. I know Squid/Squirm offer this functionality so am guessing I am missing something really basic. I know I can use RewriteRule to dynamically modify the URL and pass it to the proxy server, but I effectively want to do the reverse, whereby the proxy server receives the original URL, applies the RewriteRule, and then forwards the HTTP request to the new URL. Hope that makes sense. Thanks in advance for any help.

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• USB Device With Embedded Fileserver

  - by Richard Martinez

  I'm attempting to access logs from a proprietary hardware box with no reasonable hope of modifying the software. There is a process on the device to dump log files to a flash drive on the USB port after entering a code sequence. Currently, analysis of the logs requires the following: Physical presence at the device Manual entry of the code sequence Removal of USB device Insertion of USB device into a normal Linux box I'm hoping there is some sort of device that can act as a USB mass storage device but simultaneously make it's contents available as a network file share (wired preferred). Does such a device currently exist? A combo hardware/software solution would also work.

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• How can I clear the "authentication cache" in Windows 7 to a password protected samba share?

  - by Chris Drumgoole

  I have a Linux samba server and have explicitly listed users that can access the folder. I have successfully congfigured Samba to require a username and password when accessing the share from windows (using the smbpasswd, etc.). But now I want to force clear the auth cache on the windows machine. Such as when I go to a colleague's computer, I use my account to access a file in the protected share, but then before I leave his computer, i'll want to make sure the authorization cache is cleared so he cannot access that folder with my credentials. I found the command to use in the windows command prompt on google a couple of weeks ago but silly me I didn't save it... Hope someone can help, thanks! Oh, Samba is configured as a workgroup and not a domain (if that helps) - so windows users do NOT log into a domain on start up. thanks!

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• How to solve ATI Radeon 7670M/ Intel HD Switchable Graphics recurring BSOD error?

  - by Ashin Mandal

  I recently bought a VAIO E Series laptop with an ATI Radeon 7670M and Intel HD Switchable Graphics. Around about one month ago, my computer started shutting down with atikmpag.sys blue screen error and the frequency of the errors kept on increasing with time. I am really worried about my VGA Adapter and whether or not it's gone bad. It's a 3 month old laptop! I searched on Google about atikmpag.sys BSOD and most of them suggested that my driver probably needs to be updated. I searched the Sony website and also the ATI website, I did have the latest drivers installed. Yet, I uninstalled the driver and installed it back again. But blue screens just keep coming back again and again. It generally happens more frequently when I have a video running and have paused it to do something else. I hope it's a driver issue!

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• Cannot access Samba Share that is on Linux

  - by doug

  I have 3 virtual machines; Windows Server 2012, Windows 8, and CentOS Linux. The Server is configured with active domain. The CentOS VM has a Samba Share which has rights for the domain Administrator. Now, the Windows Server 2012 DC can successfully locate the share, but cannot access it (with Admin) ? Is it not possible for the Server to have access to it has Domain Client Admin, not Server Admin ? Hope this is clear? Thanks

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• What to do when you can not type a letter in Cygwin/bash

  - by Stenemo

  I had a very strange issue that happened as I was editing .bashrc or possible .profile, which made it impossible to press the letter "a" (it is not showing up on screen, although I am able to type it in all other programs as usual. I am not sure, but I was trying to get aliases to work on my computer at the time, so it is possible that I somehow aliased a to "", although I am not sure how that would have happened. I solved this by copying all the files in "cygwin\etc\skel\" (these are the backup starting files in case you ever need to replace them) into my home folder. Just leaving this question here so that other people which run into the same problem know what to do, not sure why I am unable to press "solve your question" at the moment, but I hope that someone who reads this knows how to edit this question so that the next person with this problem knows what to do. Also, not sure if this belongs in this forum or another one, but guess it is more of a unix question.

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• remove apache tar binary package in centos

  - by user119720

  I need help in removing binary package that had been installed in my linux machine. The scenario that I am having are such as like this: I've already install latest apache that I get from its website(httpd.apache.org) through Unix binary package(tar.gz) After successfully install program,the apache server web perfectly without any issues. But then I having a thought,if there are another latest release version of apache in the future,then I need to make sure that i can upgrading current apache or reinstalling the new version apache. So my question is, how do I ensure that I have remove the old remove apache and all its dependencies so that it will not having conflict(probably) when installing the new apache. Right now the only thing that i can think of is to remove all the apache folder manually : rm -rf /apache2 Hope someone can shed some light about this.Thanks.

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• Setting up a software company...

  - by ThePower

  Hi all, I am a Software Engineer who wants to start developing and selling a range of products. I have some in depth ideas that I would like to go on to develop individually and sell under my own company name. Does anyone with any experience in this process have any information with regards to the route to take and process of setting things up so that I may be able to sell my applications? Also any information regarding copyrighting the material would be excellent. I am looking for the easiest way to set up a business that will allow me to have a name in which I can start selling applications to a variety of sources under. I didn't quite know which site to post this on so I hope it is relevant for superuser. Regards, Lloyd

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• Migrate servers and mailboxes?

  - by johnnietheblack

  I am moving a website from one hosting provider to another, and this of course means that I need to migrate all the mailboxes as well. Do I have to manually move all the old emails from one server to another, or will all the email clients "save" a copy of the old emails on each computer? UPDATE Pardon, the naivety - I hope this additional info helps: I'm doing this remotely, so I am not sure which email client(s) people will be using at the office, but I will need to be prepared for both POP and IMAP setups. Also, the server they currently have is on VPS.net (cPanel), and we are migrating to a MediaTemple Dedicated Virtual (Plesk). Both Linux.

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• HOw to deny a particular mac address client not to obtain ip/name from dhcp & dns server..

  - by Deepak Narwal

  Hello Friends... I configures DHCP server on my rhel 5.4 machine.Clients are getting ip from this DHCP server.NO problem upto this.. NOw i want that a particular mac address client do not pick ip from this dhcp server.. Same question is with my DNS server. I want that a particular mac address client do not pick name from this dns server.. PLz discuss in little bit details i am very new in this field.I am learning these things.I hope YOu will give detailed explaiantion.. Thanks IN ADvance friends..

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• RAM Part Numbers - Meaning?

  - by 1Up

  I hope this is the appropriate stackexchange to post this question. EDIT: I'm attempting to replace faulty ram and am trying to understand the meanings of the label to make correct decision. I have a 2gb stick of ram which appears to have gone bad. It is a SAMSUNG Top line: 2GB 1Rx8 PC3-10600U-9-10-A0 The part number: M378B5773CH0-CH9 1051 Doing a number of searches, I end up here: http://www.reusetek.com/samsung-m378b5773ch0-ch9-1110-4gb-2x2gb-1rx8-pc310600u-09-10-a0-ddr3-desktop-memory/ M378B5773CH0-CH9 1110 Notice there is a difference: 1051 OR 1110 What is the meaning of the part number, and the last 4 digits? Is this a significant difference, and one that affects the machine?

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• How do I install a language pack in Windows 7 Home Premium?

  - by ekaj

  Specifically, I want Korean (link), but I hope this helps other people in general. According to this page, it is only possible for Ultimate and Enterprise. Specifically, I'd like to enable my keyboard to type in Korean, and I specified Korean as the input language (Start - type "Input Languages", only result). Under the General tab, I selected Add, and specified Korean.. but it doesn't work, because the language pack isn't installed I presume. Would anyone know how to add different language input / packs to Windows 7 Home Premium? Also, I tried following this tutorial on adding a language pack to HP, but the .cab keeps disappearing so it will not work. Note: Unlike the link in the tutorial as well, I do not have an option to change the display language of Windows, only the option to change input methods.

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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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• Windows 8 Color Settings (Window Title)

  - by xixixao

  In Windows 7, the window title's color (by default black, to see the title in the title bar fire up Windows Media Player for example) is stored in [HKEY_CURRENT_USER\Control Panel\Desktop\Colors] TitleText value. This is not the case in Windows 8, since this value is only used when using high contrast theme. It looks like noone has come up with a way to change this color yet, so my question is, where to look? What tools can I use to see dependencies, what could be the way to find this value (I rightfully hope it's not a constant in code).

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• Windows: Should I install Server or stick with regular?

  - by stalker92

  I hope somebody can help me solve my dilemma. I have my home PC (using Windows 7) which I use for both work and leisure (gaming, surfing, movies etc.) I tend to never turn it off, only when I must reboot because some installation requires me to or when the power gets lost. But, sometimes Windows starts acting weird (usually after the long period of system uptime), per example eats up randomly all the space on my system partition etc. which is solved after the reset by itself. I was thinking to switch to Windows Server, I guess that it is more optimized for long uptime, well, obviously it is meant for use on servers. Can somebody with more experience with this help me decide is it worth it, will it solve these issues connected with long uptime periods? Thanks in advance.

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• How can I run my program on a large number of computers? [closed]

  - by zenpoy

  I'm looking for a (preferably free) service for running an executable I wrote? It's not malicious, it's not a virus, it's not scam, and if this is really important I can upload the python source code instead. I wrote a small crawler to gather information regarding the style of web pages for my MA project, and I need a lot more data. EDIT Here is more information on my problem and how I approach on solving it, and where I'm stuck. As part of my research I'm trying to classify text based on it's style (font-family for now), my data is based web pages, so I wrote a client/server application - the client is a crawler that gathers this data and send it to the server. The problem is that like 99% of the internet is Arial, Verdana and Helvetica - other fonts are far more rare, so I need to spend very long time to gather enough data regarding these fonts. Hope this explains it.

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• How to make a server check it's own availability on the web?

  - by Javawag

  Hi all, Just a quick question – my server is running at my house serving www pages at www.javawag.com. The problem is that my home internet connection keeps dropping randomly - for about 10 mins at a time. This is only an intermittent problem and will go away soon I hope. However, my server doesn't recover properly - when the connection comes back, I can still access it at 192.168.0.8 (locally) without any issue, but at www.javawag.com there's no reply! (Just an aside - my home internet connection is dynamic ISP, the domain www.javawag.com points to javawag.dyndns.org which in turn points to my IP, updated every minute by ddclient on the server) Is there some way for the server to check if it's accessible from the outside world periodically, and if not restart Apache/reboot? Oh, and if I reboot the problem fixes itself also! Javawag

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• Configure redis to not have everything in memory?

  - by acidzombie24

  I like redis because it lets me do operations on data structures. I wanted to see what would happen if i were to put more data into redis then i have for ram. So i wrote a loop that inserted 30k bytes repeatedly and set maxmemory 100MB. I figure it would stay at 100mb. It kept growing. Past 1gb then past 2gb. Suddenly it crashed because i ran the 32bit version. Now... i dont understand what the point of maxmemory is? I am using the windows version so maybe its ignored. Does redis have to have everything in memory? If i have a site (on linux) with a 10gb database and 512mb on the machine will redis work? I don't need it to be amazingly fast i just prefer to modify data in it then sql (although i hope it is still faster then mysql)

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• virtual box strectch to fit resolution

  - by Scarface

  Hey guys I have a really annoying problem, that I hope someone has figured out. I just installed ubuntu on virtual box and installed the guest additions so everything was great. I had a resolution that stretched across my screen from left to right and the only virtual box components that were visible were the windows vista title bar : minimize/exit/maximize buttons and virtual box controls at the bottom. Now all of a sudden now that I have installed the ubuntu 170mb of automatic updates, I see vertical and horizontal scroll bars that are part of virtual box and the ubuntu resolution will not stretch across my screen anymore. What I want is a ubuntu resolution that will stretch to fit the maximized window of virtual box, and remove the scroll bars. If anyone has any ideas, I would really appreciate it.

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• Linux Read-Ahead Downsides

  - by JPerkSter

  Hi Everyone, Hope all is well. I have a question regarding read-ahead caching. Are there any downsides to raising the size of the read-ahead cache? On our farm, we're currently running at 256, and upon raising that higher, we are seeing significant throughput gains.   [root@server~]# hdparm -tT /dev/sda /dev/sda: Timing cached reads: 7352 MB in 2.00 seconds = 3677.62 MB/sec 3 Timing buffered disk reads: 244 MB in 3.10 seconds = 78.68 MB/sec [root@server ~]# blockdev --setra 10240 /dev/sda [root@server ~]# hdparm -tT /dev/sda /dev/sda: Timing cached reads: 11452 MB in 2.00 seconds = 5728.52 MB/sec Timing buffered disk reads: 422 MB in 3.17 seconds = 133.04 MB/sec We are running on 2.6. Thanks!

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• Recover an accidentaly closed Opera window after restarting Opera?

  - by Kostas

  Hello there and thanks for all the help! I accidentaly closed a window with multiple tabs in Opera. There was another window with a couple of tabs running. I have closed and restarted Opera in the hope it will retrieve the windows at startup (it usually asks if I want to continue from last time). Is there a way I can retrieve my closed window with all the tabs? I cannot see them in the history either, probably because When I switched-on my PC the Internet connection was down and the pages didn't load :-/

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• How to intercept and manipulate DNS queries?

  - by emtunc

  I'm not sure if I worded the question correctly to be honest but basically what I want to do is: When a user types in something like Expenses in the URL bar of a browser, I want the browser to be directed to a specific web address (very very similar to how OpenDNS shortcuts work) The IP address of the web address will not change amongst the different 'shortcuts'... i.e: mycompany.com = 10.0.0.0 mycompany.com/expenses = 10.0.0.0 mycompany.com/tracker = 10.0.0.0 When a user types expenses in the browser address bar and presses enter, I want the browser to automatically direct to the specified address as above. Would this be tricky to implement? I hope I have put my question forward appropriately :-) Additional notes: We are on a Windows envionment I believe the exchange server is running as the DNS server in the office

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• Songbird too damn slow, at least on my mac

  - by Cawas

  I've read on few places that Songbird is no good with more than some thousands of library items because it starts getting quite slow. Well, in my case (which is a clean install) I've imported 17k items (which I know is not that much) and instead of becoming just too slow it frequently gets to not responding for several minutes until getting back to its senses again. That's for whichever random operation such as deleting 1 item from library. I've also read on few more places that gives very little hope on fixing this issue, but I wonder... Is there any way to tweak it and make it work as fast as expected? Am I missing something or is this just a complete and utterly useless piece of software for libraries with more than 10 thousand thingies?

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• Drupal 7 on Windows - File Module Problems

  - by TimothyP

  Installed Drupal 7 using the Web Platform installer on Windows 2008 For some reason, the file module, when you upload a file, uses the first few letters of the filename as the unique key to store in the database, which of course causes problems very fast. I'm wondering does anybody have a workaround for this? An AJAX HTTP request terminated abnormally. Debugging information follows. Path: /file/ajax/field_file/und/0/form-EBMatHzV5cZXcWvXJtdADSdyw7Id9-GIpFM_NCJg_a4 StatusText: n/a ResponseText: Error message PDOException: SQLSTATE[23000]: [Microsoft][SQL Server Native Client 10.0][SQL Server]Cannot insert duplicate key row in object 'dbo.file_managed' with unique index 'uri_unique'. in drupal_write_record() (line 6776 of ..........\includes\common.inc). Error The website encountered an unexpected error. Please try again later. ReadyState: undefined (PS: I hope superuser is the right place to ask)

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