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• How to automatically show USB camera or memory stick contents in Icewm?

  - by darenw

  I normally use a very lightweight Linux setup. No desktop like Gnome or KDE, just Icewm as the windows manager and nothing else that normal users might consider essential. Well, I do need a file manager - I use Thunar. Recently I've been trying Gnome. Whenever I shove a memory stick into a USB port, or connect my digital camera, it can automatically pop up a file manager showing all the goodies on that device. KDE does this too. I like this. Although quick at the command line, I like not having to go sudo to mount the device and all that. If I want to stick with a lightweight setup using Icewm+Thunar, is there something non-huge I can install to make external devices fire up a Thunar window, or otherwise make access to the contents brainlessly easy?

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• Apache stopping downloads part way through

  - by Ben Smiley

  On my site there are some digital files which can be downloaded through a PHP script. The script works fine for small files but large files i.e. 115MB cannot be downloaded successfully. The connection dies after around 15 minutes but it's not consistent - sometimes longer sometimes shorter. I don't think it's a problem with the script timing out because the download time isn't consistent. Equally it doesn't seem like a memory limit problem because the amount downloaded varies each time. Does anyone know of any Apache or PHP related settings which could cause this kind of problem?

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• How much does it wear an SD card to be frequently removed/reinserted?

  - by jtbandes

  My digital camera (a Sony a55) stores photos on an SD card. When I want to transfer these to my computer (a mid-2010 MacBook Pro), I have two options: use the USB cable to connect the camera to the computer, or use the computer's built-in SD card reader. The camera's SD card slot is the standard click-in, click-out (spring-loaded) mechanism. My laptop has a simple slot into which the card slides with a little more resistance than the former (the card slides only about halfway in so it can be easily removed). I notice that the card's contacts now have some shiny marks from one or both of these card slots: Does this type of wear threaten to significantly damage the card? Should I avoid switching the card between slots frequently, to extend its lifetime?

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• Can I create an SSH user which can access only certain directory?

  - by RiMMER

  I have a Virtual Private Server which I can connect to using SSH with my root account, being able to execute any linux command and access all the disk area, obviously. I would like to create another user account, which would be able to access this server using SSH too, but only to a certain directory, for example /var/www/example.com/ For example, imagine this user has a HUGE error.log file (500 MB) located in /var/www/example.com/logs/error.log When accessing this file using FTP, this user needs to download 500 MB to view the last lines of the log, but I'd like him to be able to execute something like this: tail error.log Therefore I need him to be able to access the server using SSH, but I don't want to grant him access to all server areas. How can I do this?

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• Is there a point to using theft tracking software like Prey on my laptop, if you have login security?

  - by Reckage

  Hey, so I have a Thinkpad that I use in a variety of places (coffee shops, work, etc.). I don't generally abandon it, but I figure there's a chance I might get careless and it gets stolen at some point. I was thinking of installing something like Prey (http://preyproject.com/), but my OS installs are password secured, and on top of that, I have a fingerprint reader that you need just to get through the BIOS. So: is there actually any benefit to setting up software that tracks the laptop's whereabouts? I imagine that either: The laptop won't boot or login, if the thief doesn't get past the security. If the thief goes around said security somehow, presumably they've split the laptop for parts or bypassed BIOS security, gotten stuck on Windows security and formatted it. Given that it's highly unlikely that the thief would go to the trouble, what's the utility in installing laptop tracking software like Prey?

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• CentOS/Apache killing connections

  - by fin1te

  Getting a really strange error. Basically, whenever I browse to my server (http://[ip_address] or http://[hostname]), it doesn't load, and my active SSH connection drops out. I installed CentOS 5.5, and then httpd and PHP 5.3. No other applications where installed, so I can't imagine it's something else causing it. I also reinstalled CentOS 5.5 again, completely fresh, the only thing I did to it was yum install httpd, and it still caused this issue. I've changed nothing in the config or anything else. Driving me mad, has anyone heard of this? It's really frustrating since everytime I attempt to debug this issue, I get kicked off SSH and have to log back in. Theres nothing in the Apache error logs, and nothing in the access log recording my attempt. Also, the result from uname - Linux [hostname] 2.6.35.4-rscloud #8 SMP Mon Sep 20 15:54:33 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux Thank you

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• How do you apply development practices like version control, testing and continuous integration/deployment to system administration?

  - by arex1337

  Imagine you're going to manage a number of servers with a number of different services that's used by a number of people. Now say you want to reconfigure or replace some software on one of those servers. Obviously you don't want to work on servers that are in production. If this was a code change, as a developer, I would make the change on my local development machine, test it locally and commit the change to a version control system. The changes could then be deployed in a staging environment, tested further and finally deployed in a production environment. It would also be easy for me to roll back, if necessary. Generally, or specifically, how do you achieve this in system administration? (The first thing that comes to mind is to use virtual machines and put virtual machine images in version control, but I'm sure there is a lot of literature and clever solutions I'm not presently aware of.)

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• how to restrict wampserver access to certain ip addresses

  - by user28233

  What do I need to do in order to restrict the access to my wamp server to certain ip addresses. Just imagine that the my ip address is the ip address that I only want to have access I tried to edit the .htaccess # This folder does not require access over HTTP # (the following directive denies access by default) Order allow,deny Allow from 112.203.229.44 and the phpmyadmin.conf: Alias /phpmyadmin "E:/wamp/apps/phpmyadmin3.2.0.1/" # to give access to phpmyadmin from outside # replace the lines # # Order Deny,Allow # Deny from all # Allow from my ip address # # by # # Order Allow,Deny # Allow from my ip address # <Directory "E:/wamp/apps/phpmyadmin3.2.0.1/"> Options Indexes FollowSymLinks MultiViews AllowOverride all Order Deny,Allow Deny from all Allow from my ip address </Directory>

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• Windows 7 Recurring Blue Screens: MEMORY_MANAGEMENT 0x1A

  - by Chris C.

  I have recurring BSODs that really have me scratching my head. Here's a look at the errors: MEMORY_MANAGEMENT 0x1A (ntoskrnl.exe) - I've seen this 9 times since April 2012 NTFS_FILE_SYSTEM 0x24 (Ntfs.sys) - this one's new, happend 4 days ago BAD_POOL_HEADER 0x19 (win32k.sys) - also new, happened 7 days ago My system specs: Intel Core i5 2500K @ 3.30GHz ASUS Sabertooth P67 Motherboard (Rev 2) * RMA'd my Rev 1 due to recall 16GB (4 x 4GB) Kingston HyperX 1600 MHz DDR3 RAM 2 x 640GB Western Digital Caviar Black 64MB SATA HDD EVGA NVIDIA GeForce GTS450 1GB PCI-E 2.0 Graphics Card I've got Windows 7 Home Premium and it's completely patched. I'm also running Microsoft Security Essentials, which is up-to-date and always present. I've run MemTest86+ from a USB drive for up to nine hours, giving my RAM a total of 6 passes, and it didn't detect a single error. I've used chkdsk in Windows 7 to scan the C:/ drive on boot (twice) and it found no problems. How can I find out what's causing all these blue screens?

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• Dovecot and StartSSL problems with issuer

  - by knoim

  I am using dovecot (1) and trying to get my StartSSL certificate running. ssl_key_file points to my private key I tried pointing ssl_cert_file to my public key, with and without using the class1 certificate from http://www.startssl.com/certs/sub.class1.server.ca.pem as ssl_ca_file aswell as combing them with cat publickey sub.class1.server.ca.pem chained My mail client keeps telling me the certificate has no issuer, but doing openssl x509 on my public certificate tells me it is C=IL, O=StartCom Ltd., OU=Secure Digital Certificate Signing, CN=StartCom Class 1 Primary Intermediate Server CA My option for the CSR were: openssl req -new -newkey rsa:4096 -nodes Dovecot's log doesn't mention any problems. EDIT: Doesn't seem to be a problem with dovecot. I am having the same problem with postfix. openssl verify gives me the same error.

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• Reliable Linux RAID Card

  - by Chris S

  Can anyone recommend an appropriate RAID card for use under Linux (Ubuntu)? I have three Western Digital SATA drives, and would like to setup either RAID-1 or RAID-5. Software RAID has been very flakey and unreliable for me (e.g. it doesn't seem to mirror the boot partition). Unfortunately, most RAID cards I've seen online don't mention any Linux driver support. Would most cards work in Linux, or do I have to look at a select few that explicitly support Linux?

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• Encrypt remote linux server

  - by Margaret Thorpe

  One of my customers has requested that their web server is encrypted to prevent offline attacks to highly sensitive data contained in a mysql database and also /var/log. I have full root access to the dedicated server at a popular host. I am considering 3 options - FDE - This would be ideal, but with only remote access (no console) I imagine this would be very complex. Xen - installing XEN and moving their server within a XEN virtual machine and encrypting the VM - which seems easier to do remotely. Parition - encrypt the non-static partitions where the sensitive data resides e.g. /var /home etc. What would be the simplist approach that satisfies the requirements?

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• String manipulation of type String substitution in mathematical expression

  - by Peterstone

  Imagine something like exp(49/200)+(x-49/200) I want to pass as argument of the function "roundn" whatever operation that is not a addtion or a subtraction So my expresion became roundn(exp(roundn(49/200,n)),n)+(x - roundn(49/200,n) Well the expression I want to manipulate is this: exp(49/200)+exp(49/200)*(x-49/200)+1/2*exp(49/200)*(x-49/200)^2+1/6*exp(49/200)*(x- 49/200)^3+1/24*exp(49/200)*(x-49/200)^4+1/120*exp(49/200)*(x-49/200)^5+1/720*exp(49/200)*(x-49/200)^6+1/5040*exp(49/200)*(x-49/200)^7+1/40320*exp(49/200)*(x-49/200)^8+1/362880*exp(49/200)*(x-49/200)^9+1/3628800*exp(49/200)*(x-49/200)^10+1/39916800*exp(49/200)*(x-49/200)^11 I´m looking for a method (That include whatever program) not based in lenguage programming, as much batch or somithing like that... Thank you!

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• Windows 7 - Add folder to Explorer Favorites navigation pane from the Command Line

  - by nondescript1

  In Windows 7 is there a way to add a location to the Explorer Favorites navigation pane from the command line? I'm working with systems that are frequently re-imaged, and I would like to automate adding a number of favorite folders to explorer. I imagine these favorites are also stored in the registry. If someone knows where, I could probably automate managing them through the reg command, although this is less than ideal. I've looked at a number of locations related to explorer suggested here, but haven't found them yet. For information on customizing the favorites section of the navigation pane with Explorer, see http://www.howtogeek.com/howto/10357/add-your-own-folders-to-favorites-in-windows-7/

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• ATI Radeon 5850 I cant seem to get 3 monitors up at the same time. 2 Monitors and a HDTV but still.

  - by Jan

  Ive just bought the top end ATI Radeon card with 2 normal monitor ports and a HDMI. The idea was to continue using my dual screen setup as always and to use the last plug, the HDMI on my TV. I got a new 52 inch HD TV with all the necessary bits. This should work fine. But.. in Display Properties I still get only my 2 monitors up as options. Not the Digital TV. When I unplug 1 monitor and restart the computer, I get the TV and the other monitor. But never all 3 at the same time. Why is this ? Where can I go to tell it that I need all 3 screens at the same time. Also I get a message saying my gfx card also gives sound through the HDMI cable.. But the TV tells me its recieving a sound format that it does not understand. Any ideas on that too while were at it ?

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• Capturing a firewire video feed in Leopard on a G4

  - by Justin Dearing

  Hi, I have a powerbook G4 that I loaded up with Leopard (OSX 10.5). I don't have iMovie, since the Leopard version requires an intel mac. I have a Sony Digital 8 Camcorder with firewire and usb output. The usb output requires a special driver on windows. I don't think OSX will support it. I wish to capture the video stream from the camera on my G4. VLC does not support firewire capture on OSX, I don't want to pay for QT professional. I'm looking for a solution. I'd prefer open source, but I'd consider freeware and inexpensive for pay options. On a related note, if it can capture still frames, I have a related question.

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• RoboCopy Log Files missing whitespace?

  - by TwystNeko

  So I'm working on a script to use RoboCopy to copy a bunch of files, and log what it's copied. It works reasonably well, except for the logfiles. They tend to look like this: C:\Users\Tech\Documents\desktop.initechscan1.jpgtechscan2.jpgtechscan3.jpgtechscan4.jpgtechscan5.jpgwsus.jpgwsus2.jpgC:\Users\Tech\Documents\My Music\C:\Users\Tech\Documents\My Pictures\C:\Users\Tech\Documents\My Videos\C:\Users\Tech\Documents\My Digital Editions\ As you can see, the log seems to be missing all whitespace and separators between entries. Is there something I can do to fix this? It's kind of frustrating. The commandline I'm using is this: C:\Users\Tech\Desktop>Robocopy.exe C:\Users\Tech\Documents c:\Temp /e /l /b /xj /xf ntuser.* desktop.ini *.lnk /np /njh /log:migratedfiles.txt /v I have the /l in there since I'm debugging, and it's the easiest way to keep from copying everything a million times.

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• Determining Namespaces Not in the ACPI Spec

  - by Eddie B

  I am trying to determine how it may be possible to find documentation for namespaces that are not documented in the ACPI spec. I have an Asus uEFI BIOS v(3202) and I'm receiving kernel messages stating AE Namespace lookup failures for DSSP. This is referring to a namespace that is not in the ACPI spec. I'm presuming that this is vendor specific and refers to a Digital Sensor Signal Processor. That is only a presumption. In an effort to correct ACPI errors I have dumped my DSDT using acpidump and then decompiled it using iASL. Yet to fix the error I need to know the spec on the namespace. How can I get access to the BIOS documentation that isn't part of the ACPI spec?

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• Can Windows 7, Vista, or XP notify me after 30 minutes, or at 2:30pm?

  - by Jian Lin

  Come to think about it, since Windows 3.0, Windows 95, 2000, ME, XP, Vista, and Windows 7, does any Windows have a capability of giving a "beep beep" notification to me, let's say I need to go meet somebody after 30 minutes? Or give a "beep beep" at 2:30pm? I hope to hear some sound instead of a pop up window as I may be writing something on the desk instead of looking at the computer. I usually don't want to install 3rd party app for this purpose, as you never know what the app does or how trustworthy it is if it is not a popular app (like Firefox or Safari). Does any version of Windows come with that capability? I'd imagine it is an app that takes two days to write.

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• Is there any way to limit my Internet connection to a per program basis?

  - by Igoru

  My Linux connection is REALLY free. I live in Brazil, so where I live I can only have 1 Mbit/s. Yes I know it's sad, but it's not the point. Everytime I'm updating my Ubuntu 9.04 or downloading something, it does eat all my bandwidth. Like, while update-manager is downloading the packages, I can see by netspeed applet in my panel that the incoming traffic goes to 110 kB/s. And then, my Emesene suddenly goes disconnected, and I can't navigate. As you can imagine, I can't use my Internet connection again until the packages are all downloaded or I cancel the update in the middle. As I said, same thing happens when I'm dowloading something, but less intrusive and immediate. The question is: is there any way to limit that APT/downloads traffic to some way I can still use my other Internet services, or to reserve some bandwidth for common navigation tasks (like we have on Windows, but I forgot this thing's name, it's like "something packages".

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• Brocade 200E Switch - Fibre Channel

  - by Arthor

  What I have: Fujitsu-Siemens PRIMERGY BX600 Brocade 200E (16 port, 4gbit fibre). My question: Imagine a QNAP with a fiber 10GBIT card connected to the Brocade 200E (16 port, 4gbit fibre). Would this work; would the card drop down to 4GBIT? Are 10GBIT fiber cards backwards completable. Update. I have the specs of my server now.... Fujitsu-Siemens PRIMERGY BX600 S3 Blade Ecosystem Blade Chassis comprising; 2 x A3C40073243 Blade Management modules 2 x A3C40089238 GBE Switch Blade SB9F 30/12 2 x A3C40085736 4Gb 10 port pass through blades 1 x A3C40083767 Digital KVM Modules 2 x A3C40073245 Fan enclosures + cooling fans 4 x A3C40073262 Power Supplies My Goals and Objectives To have a blade system in place for 8 blades for video rendering, the other 2 for database and scripts etc The system will be built on VMWARE ESXi 5 Use ISCSI on the QNAP to support HA and vmotion if needed Users to access the qnap for video editing QANAP has 12 drive (2 x (6 HDD in RAID 10)

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• How to convert Kindle books into PDF format?

  - by verve

  I'm new to digital books and I use the Kindle app for Windows to read the books I bought but I hate how I can't read the bottom paragraph of a book in the Kindle app in the centre of the monitor; I have to bend my neck down and it gets sore fast. Problem is that I can't move the Kindle book page up or halfway as when I'm reading a PDF document; if you try to move the page in Kindle it skips to the next new page. So, I thought maybe converting my books to PDF will solve the problem. How do I convert Kindle books into the PDF format? Does anyone have another solution? Perhaps a fancier reader that allows me to scroll Kindle book pages? Windows 7 64-bit IE 8

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• SVN - Migrate to new server

  - by Jeff Bilbro

  We recently acquired another company that brought with them some crufty old linux servers. One of them is their SVN server - which died last night. I don't know a lot about Subversion, but I have reading up on it this morning - as you can imagine. We do have backups, but their just the whole directory tree for the subversion, not individual dumps. Since the server is now dead, I cannot do any dumps. How do I migrate that Subversion directory to a new server and get it up and running again? I'm not seeing a lot of examples. The new server is a VM running RHEL5. Thanks, Jeff

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• Setting up a lab with Windows 2003 server and windows 7 clients

  - by Tathagata

  We are overhauling a lab with new machines with Windows 7 (as clients - around 150 of them). In the current infrastructure we have students logging in using a generic student id (as having individual student accounts doesn't really serve any additional purpose). This account, as you would imagine is a locked down one that can run a few (age old) softwares required by students in the class. Currently, the individual machines have XP images created by BartPE. What should be an ideal infrastructure design to cater to such a need with Windows Server 2003 and Windows 7 clients? It would be great if you can give me pointers to what concepts and background I need to have (like GPO), any design guidelines, best practices?

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• Is it possible to change the default scan folder on an Eye-Fi Wireless SD Card

  - by MichaelPh

  By default Eye-Fi cards scan the DCIM folder (and subfolders) used by most digital cameras for new images to upload. Is there a way of changing this to a different folder? In my particular case I'm using a Kodak photo scanner (P461) that uses a PHOTO(N) folder format to store the scanned images, as far as I know the device has no configuration interface to alter this setting so that doesn't seem to be an option. This topic on the Eye-Fi forums is the closest I've come to a solution, but a perfunctory investigation of Disk Probe doesn't make it obvious what needs to be modified on the card.

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