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• How does the build quality of laptops compare?

  - by pgwillia

  I'm looking to replace my 5 year old laptop. I want my next laptop to endure at least this long. I typically have Thunderbird, Firefox, Eclipse Java IDE, Skype, a ssh session, and Apache Tomcat running. I'm currently running Karmic Ubuntu, but am agnostic about operating system and would move to Win 7 or OS X. I frequently travel with this computer. I also value battery longevity and power conservation (if possible). Above all I'm looking to minimize cost. I think the hardware that best meets my needs is an Intel i7 processor, 8 GB RAM, 100GB @7200 rpm or SSD hardrive, and about 15 inch monitor. These specs are met by most brands. Does anyone know specific pros/cons and build quality for Macbook Pro, Lenovo Thinkpad (W510 or T510), Sony's VPC-F1190, and ASUS G Series G73JH-X1 NoteBook? Are all i7 processors created equal? Do you have other suggestion that meet my needs?

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• Is there a way to create a consistent snapshot/SnapMirror across multiple volumes?

  - by Tomer Gabel

  We use a NetApp FAS 6-series filer with an application that spans multiple volumes. For backup purposes I would like to create a consistent snapshot that spans these volumes at the same point in time (or at least with an extremely low delta); additionally, we'd like to to use SnapMirror to replace the production environment to test volumes. The problem is in creating a consistent snapshot/SnapMirror, since these commands are not transactional and do not take multiple parameters. I tried scripting consecutive "snap create" or "snapmirror resync" commands via SSH, but there's always a 0.5-2 second difference between each snapshot. It's currently "good enough", but I'm seriously concerned about the consistency impact with increased load (we're currently in pre-production). Has anyone managed to create a consistent snapshot that spans several volumes? How did you pull it off?

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• replacing 3 Cisco Catalyst 4500

  - by hoberion

  Our network supplier recommends replacing our 3 cisco catalyst 4500's because they are EOL and dont speak OSPF (which we really want) Its not my area of expertise so I cant say for sure if we really need to replace these units but for my company the estimated costs of 250K euro is a huge problem. Is there any way to cut down on costs (without moving from cisco devices), I heard the 4500´s can speak ospf but would need an upgrade of sorts? edit: version: IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-I9K91S-M), Version 12.2(20)EW, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1) supervisor: WS-X4013+ Cisco Catalyst 4500 Series Supervisor Engine II-Plus density: WS-X4306-GB Cisco Catalyst 4500 Gigabit Ethernet Module, 6 Ports (GBIC) WS-X4306-GB Cisco Catalyst 4500 Gigabit Ethernet Module, 6 Ports (GBIC) WS-X4548-GB-RJ45 Cisco Catalyst 4500 Enhanced 48-Port 10/100/1000 Module (RJ-45) WS-X4548-GB-RJ45 Cisco Catalyst 4500 Enhanced 48-Port 10/100/1000 Module (RJ-45) WS-X4548-GB-RJ45 Cisco Catalyst 4500 Enhanced 48-Port 10/100/1000 Module (RJ-45)

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• DHCP server with database backend

  - by Cory J

  I have been looking around for something to replace my (ancient) ISC-DHCPd server. A DHCP server with a database backend sounds like a great idea to me, as I could then have a nice, friendly web interface to my server. Surprisingly, I can't any major open-source projects that offer this. Does anyone know of one? I have also read about modifying ISC to use a database backend...can anyone tell me if this solution is stable enough for a busy production server? Or is using a database a Bad Idea™ all together? PS - http://stackoverflow.com/questions/893887/dchp-with-database-backend looks like SO couldn't answer this old, similar question. EDIT: I am looking for something on a free OS platform, Linux or BSD. If there is something absolutely great that is Windows-only though, still interested.

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• Is there a browser addon to redirect a link to another, modifying some address content automatically?

  - by kokbira

  Well, I'm looking for an addon that can redirect a link when I click on it in the following ways: Change from https to http Change from twitter.com/xxxxxxxxx to, for example, dabr.co.uk/xxxxxxxxx (added at 2010-02-15th, 20:30 GMT) Remove the "?utm_source=twitterfeed&utm_medium=twitter" from the end ou a URL Generally, replace a string with another (e.g. youtube->yt; so www.example.com/visitingyoutube would become www.example.com/visitingyt) PS: (added at 2010-02-15th, 20:30 GMT) @oKtosiTe, a clearer user case: Supposes that there is a link in Twitter that point to a URL X (URL X is http://www.newspapersite.com/2011-02-15_1304.html?utm_source=twitterfeed&utm_medium=twitter) In that case, I want to open that URL only until ".html", i.e., I want to open a URL Y, that is http://www.newspapersite.com/2011-02-15_1304.html What happens when I click normally in that link: 3.1. Browser goes to URL X What I want to happen when I click in that link: 4.1. The addon must transform URL X to URL Y (I must configure it before to change a piece of URL from "?utm_source=twitterfeed&utm_medium=twitter" to "" 4.2. The browser goes to URL Y

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• Vista laptop won't connect to airport extreme

  - by Hutch

  Our previous router died, and to replace it I procured an apple airport extreme. My mac, my wrt54gs (with ddwrt acting as a bridge) and a linux machine have had no problem connecting to the wireless. None of the wired clients are having a problem obviously. The problem is one of my roommates can not connect. That's not strictly true. He can connect to the network, and will, infact, get a dhcp lease. However he cannot get any packets out. Can't ping the router, can't access any web sites, nothing. However he's fine if we switch to an unsecured network. Which is obviously not acceptable. The airport only allows for 'wpa/wpa2 personal' and 'wpa2 personal' (and of course the enterprise versions there of) I keep reading about this problem in multiple spots on the web, but never see any actual answers... Anyway the laptop: hp/compaq cq50-215nr vista home premium wireess card: atheros 5007 airport is simultaneos dualband II

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• Does a Samsung G3 Station external hard drive stop working when power supply is too high?

  - by Cacovsky

  I have a Samsung G3 Station 2TB external hard drive (link to PDF specs here). It was working perfectly when I accidentally plugged it in my notebook's power source. The notebook's power source is 19V/3.42A. The hard drive's is 12V/2A and I know that, inside its case, there is regular 2TB SATA drive, along with some sort of adapter. Does this adapter has some kind of power protection? I opened the case and the hard drive board smells bad. Does my data is forever lost or can I replace its board?

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• Nginx proxy to s3 bucket gets 400 Invalid Argument

  - by elssar

  I have a Django app in which I serve media files through an nginx proxy to s3. The relevant python code response = HttpResponse() response['X-Accel-Redirect'] = '/s3_redirect/%s' % filefield.url.replace('http://', '') response['Content-Disposition'] = 'attachment; filename=%s' % filefield.name return response The nginx block for the internal redirect is location ~* ^/s3_redirect/(.*) { internal; set $full_url http://$1; proxy_pass $full_url; And the request logged by s3 is. REST.GET.OBJECT <media file> "GET <media file>" 400 InvalidArgument 354 - 4 - "http://<referer>" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1" - I, for the life of me, can't figure out what's wrong. The url send to nginx by the app is valid, it works in the browser. And nginx is sending a request to s3.

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• Computer won't start unless power is removed for ~5 minutes

  - by Paul Tarjan

  I have a fairly standard 2-year old desktop computer (quad-core intel, single hard drive, decent video card, 300W power supply) which recently started acting up. I'm not sure what the cause is, so hopefully you can help. Sometimes (once a week-ish) I press the power button and nothing happens. No blinking, no sounds, no nothing. If I remove the power cord (or flip the switch on the power supply) I hear a capacitor discharge. If I leave it in the "no power at all" state for about 5 minutes then I can put the plug back in and the computer works perfectly. What is the issue? What do you think I have to replace?

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• Computer won't start unless power is removed for ~5 minutes

  - by Paul Tarjan

  I have a fairly standard 2-year old desktop computer (quad-core intel, single hard drive, decent video card, 300W power supply) which recently started acting up. I'm not sure what the cause is, so hopefully you can help. Sometimes (once a week-ish) I press the power button and nothing happens. No blinking, no sounds, no nothing. If I remove the power cord (or flip the switch on the power supply) I hear a capacitor discharge. If I leave it in the "no power at all" state for about 5 minutes then I can put the plug back in and the computer works perfectly. What is the issue? What do you think I have to replace?

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• PBX with Fax and Google Voice

  - by Phill Pafford

  Looking to replace/port my home number which I use for mainly faxing for my home business to a PBX server ( Thinking Asterisk or Elastix ). My question is: Does Asterisk/Elastix support Faxing ( Incoming / Outgoing ) Does Asterisk/Elastix support Google Voice Here is what I'm looking to do: Run some sort of PBX software from my own home server that will allow me to use Google Voice for my home number, possibly allow multiple Google voice ( Though I could live with just the one ) and must support Faxing ( Incoming and Outgoing ). Would Asterisk/Elastix support all of this or would you recommend something else for this? Looking to avoid some of the pitfalls that could happen I like Ubuntu if a Linux environment is needed

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• DNS name not on cert

  - by blsub6

  I've got an interesting one... My users have always typed in 'mail' to get to their mail. There was an internal DNS A record that resolved that to the IP of the mail server. I'm putting in an Exchange server to replace that. In order for people to get their mail, I try putting in an A record that does the same thing as the previous one. When I try to get to OWA, it tells me that the certificate on the server is not trusted. I only have the names: mail.mydomain.com autodiscover.mydomain.com autodiscover.mydomain.internal mydomain.internal mailserver.mydomain.internal so when the browser sees that this cert is trying to cover https://mail/owa it says the cert's not trusted. What amy I supposed to do about that?

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• C language preprocessor behavior

  - by khanna_param

  There are different kind of macros in C language, nested macro is one of them. Considering a program with the following macro #define HYPE(x,y) (SQUR(x)+SQUR(y)) #define SQUR(x) (x*x) Using this we can successfully compile to get the result. As we all know the C preprocessor replaces all the occurrence of the identifiers with the replacement-string. Considering the above example I would like to know how many times the C preprocessor traverses the program to replace the macro with the replacement values. I assume it cannot be done in one go.

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• Can't escape single quotes in shell

  - by user13743

  I'm trying to make a command to do a perl substitution on a batch of php files in a directory. The string I want to replace has single quotes in it, and I can't get it to properly escape the in shell. I tried echoing the string with unescaped quotes, to see what perl would be getting: echo 's/require_once('include.constants.php');/require_once('include.constants.php');require_once("./functions/include.session.inc.php");/g' and it doesn't have the single-quotes in the result: s/require_once\(include.constants.php\);/require_once\(include.constants.php\);require_once\("\./functions/include\.session\.inc\.php"\);/g However, when I try to escape the single quotes: echo 's/require_once\(\'include\.constants\.php\'\);/require_once\(\'include\.constants\.php\'\);require_once\("\./functions/include\.session\.inc\.php"\);/g' I get the prompt to complete the command: > What I want it to parse to is this: What am I doing wrong? s/require_once\('include.constants.php'\);/require_once\('include.constants.php'\);require_once\("\./functions/include\.session\.inc\.php"\);/g

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• Using Gentoo's `ebegin`, `eend` etc under Ubuntu

  - by Marcus Downing

  We're quite fond of the style of the ebegin, eend, eerror, eindent etc commands used by Portage and other tools on Gentoo. The green-yellow-red bullets and standard layout make for very quick spotting of errors, on what would otherwise be very grey command line output. #!/bin/sh source /etc/init.d/functions.sh ebegin "Copying data" rsync .... eend $? Producing output similar to: * Copying data... [ OK ] As a result we're using these commands in some of our common shell scripts, which is a problem for the people using Ubuntu and other linuxes. (linuces? linuxen? linucae? other distros) On Gentoo these functions are provided by OpenRC, and imported with functions.sh file (whose exact position seems to vary slightly). But is there a simple way of getting these commands on Ubuntu? In theory we could replace them all with dull echos, but we'd rather not?

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• hudson/jenkins: help needed to get started with customization work

  - by user64204

  I'm would to customize jenkins by adding links to the left hand side panel and use the pages associated with these links to serve some custom content in place of the jobs/views table displayed by default. I managed to add links to the side-bar using the sidebar-links plugin. Now I'm trying to see how to replace the content of the <td id="main-panel"> element with some custom content. The custom content is generated by some PHP scripts which ideally should be called by hudson every time the custom pages are requested, though if too complicated I can either create static content to be served by jenkins by calling my PHP scripts in a crontab or see if calls to the PHP scripts can be done by apache itself before the page requests are sent to jenkins. I'm not sure writing a plugin is the best way to proceed and I would like to have your thoughts as to how you think I should implement this.

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• Computer Won't Boot After New Power Supply

  - by Haxelgem

  I recently bought a Rosewill 750-M PSU to replace an Antec Earthwatts 500. My computer worked fine before making the switch. After installing the Rosewill PSU, I attempted to boot. Fans spun up for a second, then turned off. After a second, they spun up again and stayed on. However, I had no video output. I put the old Antec PSU back in, and still had the same problem. I put another GPU in the computer, trying both PSUs, and still nothing. I switched out the monitor also, which didn't work. What should I do?

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• How to re-install IIS with factory settings?

  - by Palash Mondal

  I had made some changes in IIS 7.5 on Win 7 and after that it has been not working correctly. The website are not opening and they are giving errors. I already tried installing/re-installing IIS using "Turn Windows features on or off" but it didn't help. I also tried to replace "ApplicationHost.Config" file inside "C:\Windows\System32\inetsrv\config" with the backup file in "%systemdrive%\inetpub\history" directory but this also didn't help. I want to have the IIS with default factory settings. Thanks!

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• Can I build or test a computer without a case?

  - by jasondavis

  I am in the process of building a really nice new PC right now. It's going to have a nice Lian Li case with the internals powder coated black and all the wires will be sleeved. So my problem is I am getting parts in a couple days but my case will not be completed for about a month because it is on back order plus time to powder coat it. I am purchasing many of m y parts from newegg.com and they claim you must return any dead parts within 30 days or the invoice for there warranty to replace bad parts. So is it possible for me to set up the PC without a case just to test that the main parts are working correctly within the timeframe I am allowed? If this is possible, how do I deal with turning the system on/off without a powere button? Or is therer one on a motherboard? Thanks for any tips/advice

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• NTFS Error - file system structure is corrupt and unusable

  - by SomeGuy

  My Windows 7 (64) keeps completely locking up, and I have to hold the power button to shit it down. Event logs are showing EventID 55. I realize that this can be a warning sign of an impending disk failure, but my data on this machine is safely backed up and I don't feel like taking the time to replace the drive right now. When I have seen this problem before, I have been able to delete the offending folder with a Linux Live CD. (When CHKDSK /F didn't work). In this case, the folder is from VSS. I assume this is from Crashplan, my online backup provider. What are the ramifications of deleting this folder from Linux? Is it safe to do? "The file system structure on the disk is corrupt and unusable. Please run the chkdsk utility on the volume \Device\HarddiskVolumeShadowCopy26."

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• iMac invalid memory access and then crash?

  - by Sam McAfee

  My iMac G5 from a few years ago (the square white one) dies now, with a message about an invalid memory access. It goes straight to an Open Firmware prompt and doesn't even load the Mac OS at all. Am I correct in guessing that the memory is probably the issue, and that if I replace it, we may be able to boot again as normal? That's my gut feeling anyway, so I ordered some more memory and plan to swap it today. Any thoughts? Ideas?

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• Fast Bookmarking In Firefox

  - by Kije

  Making bookmarks in Firefox has become tedious. Can any one point me to a bookmarking extension that works as follows... Decide you want to bookmark a page Left click your way to the target bookmark folder Right the target bookmark folder to get a "Bookmark this page here" option. (It is this "Bookmark this page here" add on that I am looking for) (Edit the book mark title tags etc) Click done Currently you have to: Decide you want to bookmark a page Click on the bookmarks menu pulldown Click on "bookmark this page" Click on the "folder" pulldown Click on "Bookmarks tool bar" or "Bookmarks menu" Left click your way to the target bookmark folder (in a teeny window that that doesn't move the focus as you expand folders) (Edit the book mark title tags etc) Click "Done" That would be four (or five) steps to replace the seven (or eight) steps to make a bookmark in an existing folder. @Chris I assume you are referring me to "Read It Later" http://www.ideashower.com/ideas/launched/read-it-later/ I'll take a look.

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• Reliable Backup Solution for Linux for Complete System Restoration

  - by Chris S

  What's the best backup solution for Linux that can completely restore the entire filesystem to a blank harddrive (including partitioning) after an old harddrive dies? I'm currently running a few Ubuntu machines, some with RAID-1 and others without RAID (mostly laptops). I'd like to implement a backup solution that can take incremental snapshots of the entire filesystem, so that if I were to replace all the harddrives in a machine, I could use the backup to restore a perfect copy of the previous filesystem. Unfortunately, nearly all the backup solutions I've found seem to be glorified rsync scripts, which only backup some files, and have no easy way to restore once the entire filesystem is gone. Some of the more complicated solutions, like Bacula, might do what I need, but require a complicated server/client setup and are notoriously difficult to maintain. I've heard that Apple's TimeMachine utility has this ability, and I've had similar success taking differential disk images with Acronis True Image on Windows, but of course neither of these work on Linux. Is there anything comparable for Ubuntu?

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• How can I unlock a file without closing the file handle?

  - by netvope

  When I'm downloading a video file with Google Chrome, the file is locked and cannot be opened by media players. I want to be able to play the file while it's being downloaded. The video bitrate is lower than my Internet bandwidth so it wouldn't be a problem. Popular unlockers work by closing file handles, which would interrupt the download. How can I remove the read-lock without closing the file handle? Can I replace the read-lock with a write-lock?

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• Escaping query strings with wget --mirror

  - by Jeremy Banks

  I'm using wget --mirror --html-extension --convert-links to mirror a site, but I end up with lots of filenames in the format post.php?id=#.html. When I try to view these in a browser it fails, because the browser ignores the query string when loading the file. Is there any way to replace the ? character in the filenames with something else? The answer of --restrict-file-names=windows worked correctly. In conjunction with the flags --convert-links and --adjust-extension/-E (formerly named --html-extension, which also works but is deprecated) it produces a mirror that behaves as expected. wget --mirror --adjust-extension --convert-links --restrict-file-names=windows http://www.example

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