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• Disqus cache of unposted posts

  - by user129107

  Some webpages implement Disqus and also have the rather bad policy of adding auto refresh to the page. This result in for example one writing a long answer in a debate and then a refresh comes along – and everything is gone. Is the comments, written, but not posted, cached somewhere? Is it possible to retrieve? I have experienced this on various pages. In the current case the debate page was reloaded and a rather lengthy post with a lot of references and long thought out sentences vanished. This page closes the debate during night time, and do a auto refresh of the page when one pass midnight – as such I'm not able to retrieve the debate for another 8 hours. Other pages implement for example an auto refresh after 20 minutes. Linux, Google Chrome.

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• How do I optimize a high traffic Wordpress website?

  - by mha

  Hello, I am running a wordpress based site which is now hosted on (mt) under DV-Extreme package 2GB+256MB addon RAM. It a muti author site where people are engaged in writing posts, comments, updating status etc. According to Google Analytics this month traffic Visitor = 45,764 Pageview = 1,051,186 Visit = 141,447 I have cdn my site, compress the css, used w3 Total cache plugin to optimize my site. Since last month I am getting several down notice from Pingdom. Right now I am facing more down alert than before. And have to restart my site several time to up again. Is my hosting resource is not enough? Do I need more resource? or what could be the solution? Helpful suggestion will be appreciated. Thanks.

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• Disk fragmentation when dealing with many small files

  - by Zorlack

  On a daily basis we generate about 3.4 Million small jpeg files. We also delete about 3.4 Million 90 day old images. To date, we've dealt with this content by storing the images in a hierarchical manner. The heriarchy is something like this: /Year/Month/Day/Source/ This heirarchy allows us to effectively delete days worth of content across all sources. The files are stored on a Windows 2003 server connected to a 14 disk SATA RAID6. We've started having significant performance issues when writing-to and reading-from the disks. This may be due to the performance of the hardware, but I suspect that disk fragmentation bay be a culprit at well. Some people have recommended storing the data in a database, but I've been hesitant to do this. An other thought was to use some sort of container file, like a VHD or something. Does anyone have any advice for mitigating this kind of fragmentation?

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• How to restrict deletion of a folder on NTFS share, but still allow modify access within folder

  - by thinkdreams

  I am setting up a set of scan folders from a scanning copier device, and would like to know the best way to protect the folders (for each department) from moving or deletion, but yet still allow access for the users to modify (i.e. create/add/delete) the scanned files within the folder. Structure is: Share Name Departmental Folder User files The writing of the files initially is taken care of by a service account which has full control. We'd just like to ensure the users cannot accidentally delete the folder (which has already happened) containing all the files, etc. This is for a Windows 2003 server, NTFS permissions. Suggestions would be most appreciated.

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• What's a good tool for collecting statistics on filesystem usage?

  - by Kamil Kisiel

  We have a number of filesystems for our computational cluster, with a lot of users that store a lot of really large files. We'd like to monitor the filesystem and help optimize their usage of it, as well as plan for expansion. In order to this, we need some way to monitor how these filesystems are used. Essentially I'd like to know all sorts of statistics about the files: Age Frequency of access Last accessed times Types Sizes Ideally this information would be available in aggregate form for any directory so that we could monitor it based on project or user. Short of writing something up myself in Python, I haven't been able to find any tools capable of performing these duties. Any recommendations?

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• Record Matching Software to Compare two tables and match on % Based

  - by Crazyd

  So I have some table with Name, Address, and Zip with no record data attached; and I have a table which has all the same, but has more information and I need a way to merge the tables when they don't match 100%. How do I match them up if they aren't Identical? I'm a newb @ SQL, but I know they won't match up for the most part and I can't be the only one with this issue. However software which will do this has proven to be difficult. Writing software to do this would even be worse than having to do it in the first place. I know I can do this in excel; kinda, but with the amount of records I have its proving to be difficult over a million.

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• Application deployment with Puppet

  - by michaeltwofish

  I'm new to Puppet and while I've been using *nix systems for many years, I've never worked as a sysadmin or in ops. I'm currently writing Puppet manifests for hosting a set of (PHP/MySQL/MongoDB, code in git) web applications. Clearly Puppet needs to have some knowledge of the actual applications because I'll set up a virtual host for each one, but I'm not sure whether Puppet should be managing things like code deployment and database creation. Is Puppet an appropriate tool for application deployment? If not, can you recommend a more appropriate tool?

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• APC UPS-5000 Power off remote servers

  - by Vishal

  Hi there, I have a UPS connected via the serial port to a server using PowerChute Business Edition. If a power outage occurs I would like this server to start shutting down all other servers within the network. Is there dedicated software to do this? I was thinking of creating a command file which runs a .bat file to run shut down commands to each server (using PSExec). I can set PowerChute to run this command file when a power failure occurs. Is there not anything APC provide which has this functionality and is more efficient than writing a .bat file to do this? Thanks,

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• "bin/sh: can't access tty; job control turned off” error when running shellcode"

  - by Nosrettap

  I'm writing shellcode to exploit a buffer overflow vulnerability on a server. To do so I have port binding shellcode that I send to the server and then I run (from a linux terminal) the command telnet serverAdress 4444 where 4444 is the port which I have opened up. The hope is that I will receive a shell back that I can use to execute commands. However, I always end up with the command bin/sh: can't access tty; job control turned off I can't change any of the server code, and I believe the shellcode is correct because I got it from this website (http://www.tsirogiannis.com/exploits-vulnerabilities-videos-papers-shellcode/linuxx86-port-binding-shellcode-xor-encoded-152-bytes/). From my research, it appears that this may have to do with the mode that my terminal is running in (something called interactive mode...or something like that). All computers involved are linux machines and the machine that I am on is running the latest version of Ubuntu. Any ideas what this job control error means and how I can fix it?

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• Does programmable hardware exist to allow hardware to be programmed by computers?

  - by agentbanks217

  I am a programmer and I have never really dealt with the hardware of anything, only software. I want to start building things that I can control from my computer using programming. My question is are there such devices on the market that have a programmable interface or API? For example, I want to build a automated window blinds opening/closing device, and I would like to be able to control it from my computer e.g. writing an app or some code to schedule them when to open and close. I would like to know if there are any devices that can be programmed to do that (the computer part)? Thanks!

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• Modifying Exchange 2003 accounts in Exchange 2010 management console?

  - by MartinC

  You can look at Exchange 2003 accounts via the 2010 Management console but is modifying supported? No warnings that it is not, and all is held in Active Directory. Adding an additional email address works... But results in Error 4, Keywords "classic" Task Get-MailboxStatistics writing error when processing record of index 0. Error: Microsoft.Exchange.Management.Tasks.MdbAdminTaskException: Mailbox 'domain/OU/account name' doesn't exist in an Exchange 2007 or later mailbox database. Management Console has the updated change, as does ADUC in 2003.

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• How to restrict deletion of a folder on NTFS share, but still allow modify access within folder

  - by thinkdreams

  I am setting up a set of scan folders from a scanning copier device, and would like to know the best way to protect the folders (for each department) from moving or deletion, but yet still allow access for the users to modify (i.e. create/add/delete) the scanned files within the folder. Structure is: Share Name Departmental Folder User files The writing of the files initially is taken care of by a service account which has full control. We'd just like to ensure the users cannot accidentally delete the folder (which has already happened) containing all the files, etc. This is for a Windows 2003 server, NTFS permissions. Suggestions would be most appreciated.

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• Determine the architecture of a Mac from the command line or script?

  - by Brian Postow

  I'm writing a shell script, and I need to know the archetecture, ie PPC or Intel. Back in the day, there was a program /bin/arch that told you, but my mac doesn't seem to have it... Is there an easy way I can do this? Grep for something in a logfile? call some other program that spits that out as a side effect? It would be nice to know what OS Version I'm running too, but that may not be necessary. thanks

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• Snapshot/Save GPU Drivers

  - by ashes999

  Since I'm running XP/32-bit, my GPU drivers are quite fragile. I've spent several hours trying to back up and restore from old versions, on at least two separate occasions. Writing down the device drivers is not enough. In the short term, I would like to somehow save, zip, backup, snapshot, or something so that if I need to reinstall my OS in the short-term, I have a reliable way to get the drivers. ATI's website doesn't have the install kit anymore, and I don't have it saved; I googled, but didn't find the exact same version. How can I backup/save my drivers so that I can reinstall them later?

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• Override template shell on linux system in Active Directory domain?

  - by benizi

  Is there an easy way to override the Samba "template shell = /bin/bash" setting on a per-user basis? This is for Linux systems joined to an Active Directory domain. Some users want /bin/bash. Others including myself want /bin/zsh. Is there some AD attribute I can set? Anything I've found via googling seems hackish at best (writing a script to replace /bin/sh -- maintenance hassle). A similar serverfault question Override LDAP shell seems OpenLDAP-oriented (but if someone knows how to get it working with AD, please say so).

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• Very small computer for note-taking, with full-size keyboard

  - by Reid

  I am looking for a very small, lightweight computer with a full-size keyboard for taking text notes. Ideally it would be 500g or less including batteries for 16 hours of use. And writing text is the only use - a typewriter, if I could find one light enough, would be just fine. [I realize this is not the place for product recommendations, and that's not what I'm looking for. Rather, I have no experience in this space, so what I'd like is to understand what kinds of equipment are available and what are the right keywords to plug into Google/eBay/etc. In other words, help me learn enough to do a worthwhile search.]

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• How can I stop Pages from bolding/italicizing ordered list item numbers/letters?

  - by donut

  I'm writing a long, technical document that uses a lot of ordered lists in Pages '09. Often when I bold or italicize the first bit of text I type for a list item it Pages applies the same styling to the letter or number of that list item. It's been doing this for the first 13 pages I've written and now I've found out that I need to undo that. Is there any place to change this behavior or easily fix existing list item numbers/letters that are styled? The only way I've found is to select the whole list item (all of its content) and removing teh styling (un-bolding and un-italicizing) and then going back in and re-applying my stylings to its content. Definitely not ideal.

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• How can I check for a string match AND an empty file in the same if/then bash script statement?

  - by Mike B

  I'm writing a simple bash script to do the following: 1) Check two files (foo1 and foo2). 2) If foo1 is different from foo2 and foo1 NOT blank, send an email. 3) If foo1 is the same as foo2... or foo1 is blank... do nothing. The blank condition is what's confusing me. Here's what I've got to start with: diff --brief <(sort ./foo1) <(sort ./foo2) >/dev/null comp_value=$? if [ $comp_value -ne 0 ] then mail -s "Alert" [email protected] <./alertfoo fi Obviously this doesn't check for blank contents. Any thoughts on how to do that?

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• dual-boot does not work

  - by elyashiv

  I have a PC with linux-mint installed on it. I wanted to install win-7 along-side, for some reasones. what I have done is: create a bootable USB-stick with Ubontu ios. restarted the computer, this time with Ubuntu (running from my disk-on-key). created a partition on the main HD using GPart. formated the partition to NTFS. restarted the computer, this time through the installation CD for win-7. installed win-7 with normal settings. that all worked, and I'm writing this through win-7. the thing is - when I boot my system, I don't get to choose what OS to run. I checked the settings in msconfig, and in boot label it has just win-7. how can I boot linux?

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• something strange about Win-XP's command shell

  - by user1762055

  I wrote the following command in windows XP's command shell and something strange happened: C:\Folder1> copy sample.txt : Because of my typing mistake, I wrote ":" instead of "D:" ... but it copied the sample.txt to somewhere I cant find! I searched my whole HDD for sample.txt but the only instance of this file is the original one which is in C:\Folder1. Do you know where ":" path actually is in Win-XP command shell? You might say ":" is current path and the file has been copied onto itself but look at this: If you run that command for the first time, this will be the result: 1 file copied. but the next time you run that command it will ask you: overwrite sample.txt? (yes/no/all) So if it were writing the file onto itself, both results would have to be the same but they aren't. Thanks in advance for your help.

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• Is there a word processor similar to MS Word which saves files as readable txt files?

  - by zenbomb

  I'm writing a paper together with my supervisor and would like to have a more sophisticated version control than *_291112_NEW_NEW_revised1.doc files. My supervisor is a non-computer person will never ever use LaTeX or git and loves MS Word. I'm therefore looking for an alternative to Word (I need commenting on text passages!) which stores the files as clean text (Markup for formating is fine), so I'm able to put them under version control on my side. I'm aware that git can also handle binary files, but I'd prefer the cleaner way of looking at the contents directly. If there's a way to automatically extract the text from word files, I'm fine with that too for now.

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• Pop current directory until specific file is found

  - by edarroyo

  I'm interested in writing a script with the following behavior: See if a file, build.xml, exists in the current directory, if so run a command supplied through arguments to the script. If not, pop the current directory and look at the parent. Go to 1. The script would end once we find the file or we reach the root. Also, once the script finishes and control comes back to the user I want the current directory to be that one where the script was initially l I'm not very familiar with shell scripting but any help/guidance will be much appreciated.

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• RocketRaid gives me studdering computer

  - by Dan

  I have a RocketRaid SanDigital 8U TowerRaid with 8x5900 RPM 2 TB harddrives in a raid 5. When I'm writing data to the drives my computer studders (meaning freezes for a 1/2 second every 2 seconds or so). My screen freezes, my music goes into a loop, its really annoying. I get the same thing in windows 7 as I do in linux. The only difference is it seems to happen less in linux, but occassionally linux will crash (I've never had linux crash for any other reason, so I'm assuming they have poor linux drivers and kernal mod). Any tips for how to deal with this? Thanks

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• Update Windows using VB.net

  - by kagstrom2100

  I'm currently having my internship at a elementary school. I got the task to setup users for some classes, with that I also need run Windows Update too. So I have been scanning Google for something that does this in vb.net since I have been coding some in that before. I din't find much on the subject except for "C:\Windows\System32\wuauclt.exe /detectnow" though when I run it it don't seem to do much. So the question is it there is any command or file you can run to make Windows download and install updates? To clarify it need to work on Windows 7, I'm also writing the program in .NET 3.5. Please let me know if you need any more information! Thanx in advance :)

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• Does connecting to the default host via public IP from within its subnet cause any issues?

  - by username

  I'm setting up a small office network with a single public IP (let's say it's 69.16.230.117). I've configured NAT on the router with incoming traffic forwarded to the server (say the server has a private IP of 192.168.0.2). Is it okay to configure the client machines on the same subnet to access the server via the router's public IP (69.16.230.117)? In practice it's never caused me problems, but I've heard, here and there, that it is a bad idea, and one should use the private IP (192.168.0.2). Does connecting to the default host via public IP from within its subnet cause any issues? Please refrain from writing "never! it breaks the intranet!" ;-)

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