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• Windows XP freezes completely

  - by Max

  Lately my Win XP SP3 started to make problems. From time to time it freezes completely. Which means that the system does not react to mouse and keyboard. Keyboard led indicators also do not react to CAPS-, SCROLL-, NUM- LOCK keys. The problem is that I don't understand what causes this behavior and it seems to happen randomly. System event log also does not contain any clues. I'm thinking this could be some driver/hardware problem, but I don't know which. Are there any tools that would help me figure out the cause of this problem? Does anybody have any clue how can I fix this?

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• Can I mix CAT5 and CAT6?

  - by Jason94

  I'm thinking of upgrading the "backbone" of my network, taking a CAT6 cable from my router (DLINK DIR-655 (has cat6 ports)) to a gigabit swith in the tv rom (25m). I have two devices there that uses network (xbox and tvbox, both of them have cat5). Will my net be downgraded to 100mbit as max speed, or will I get 1 gigabit between my router and switch, and 100mbit between tvbox and xbox? From back in the days i have a tool to create my cat5 cable (the plug tool thingy), can I use this for my cat6 too?

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• iptables - drop all HTTP(S) traffic but from CloudFlare

  - by Martin

  I would like to allow only HTTP(S) traffic coming from CloudFlare. In that way attackers cannot attack the server directly. I know CloudFlare is not mainly a DDoS mitigator, but I would like to try it either way. I'm currently only having access to iptables (ipv4 only), but will try to install ip6tables soon. I just need to have this fixed soon. (we're getting (D)DoSed atm.) I was thinking about something like this: iptables -I INPUT -s <CloudFlare IP> --dport 80 -j ACCEPT iptables -I INPUT -s <CloudFlare IP> --dport 443 -j ACCEPT iptables -I INPUT -p tcp --dport 80 -j DROP iptables -I INPUT -p tcp --dport 443 -j DROP I know that CloudFlare has multiple IPs, but just for an example. Would this be the right way?

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• How do you access usermin

  - by Lobe

  I have recently setup a web server with webmin, virtualmin and usermin on CentOS to host some websites and email, however I am unable to access usermin. I can access webmin from www.foobar.com:10000 but I can't access usermin from www.foobar.com:20000 This thread seems to have dealt within the same issue, however when I tried the command "telnet localhost 20000" it came back with a connection refused message. Any idea how to get this running. I'll let you know in advance that I am a linux newbie and this is a large learning experience, so don't rule out anything if you are thinking "oh, but he wouldn't be dumb enough to forget that" or the like

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• Certain sites not working in Firefox, working in IE

  - by PSU_Kardi

  Totally weird thing happening on my PC after I came back from the Holiday shutdown. My homepage by default is google.com/ig but when it opens (in Firefox) the G-Mail panel does not display and eventually times out. I then try to navigate to https://www.gmail.com but that also times out. Thinking maybe work decided to drop the ban-hammer on g-mail I decided to try it in Internet Explorer. Oddly enough it works in IE Any idea on why it works fine in one browser but not the other?

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• Trouble getting PHP, Apache, and Zend talking to eachother (localhost)

  - by Joel

  Hi guys, I've searched through several other questions, but haven't found my solution. THe main reason is that I'm not even sure if I have all these things properly installed. I have a hosting account, and have always just deployed everything into the internets, but I'm finally trying to figure out how to get my desktop set up right for learning Zend Framework. I have Apache Server 2.2, PHP, And Zend Framework installed. I'm trying to do this tutorial: http://akrabat.com/wp-content/uploads/Getting-Started-with-Zend-Framework.pdf The problem is when I click on the link: http://localhost/zf-tutorial/public I get an Error 404. If I type in http://www.localhost I get "It Works!" in the browser. I'm thinking this means I have Apache installed correctly, but am not pointing correctly to the Zend tutorial? Thanks for any help!

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• Storage of various linux config files

  - by stantona

  I'm using git to track/store all my various config files required for linux. They're organized as if they live in my home directory, eg: .Xresources .config/ Awesome rc.lua .xmodmap .zshrc vim/ <- submodule emacs/ <- submodule etc I use git submodules for other things like vim/emacs configuration (since I also want to keep those separate repos). I'm thinking of creating a shell script to create the various links to these files. The goal is to make it easier to setup another linux painlessly. Is this a reasonable idea? Is there a preferred approach? I'm mostly interested in hearing how others people store their configs.

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• How to modify existing keyboard layout (RU, kbdru.dll)?

  - by Anton

  There's a program I'm thinking of using called Punto Switcher that detects a language I'm typing in and switching entire word between Russian and English. The problem I have with this setup is that even though most of Russian letters "correspond" to English letters, Russian keys are scattered all over the keyboard and I don't feel like learning them all as I type in English mostly. Now, the program is very specific about me using RU, kbdru.dll file, not any other and if I use a custom keyboard under Russian, it doesn't recognize what I type so I think I should change the default RU keyboard. I created my custom keyboard using Microsoft's tool and I need to modify original one. I think it will take more than just replacing a file. Help?

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• Windows Home Server is showing signs of death

  - by Guy

  I have a Windows Home Server (HP EX485 MediaSmart Home Server) and it started acting up about 4 weeks ago and a few days ago complained of a corrupt database and would I like to try and recover it? Yes, I would but I ended up losing all backups. I have to reboot it frequently for the client machines to be able to see it. I have 4 hard disks in the computer. I suspect that the primary hard disk is going bad. My first question: How can I confirm if it's going bad or not? I'm thinking about removing the primary disk and replacing it with one of the others and reloading the OS with the server restore disk. I know that I'll lose everything (but I recently did anyway) but is there any other reason why I should not do this?

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• How to kill all screens that has been up longer then 4 weeks?

  - by Darkmage

  Im creating a script that i am executing every night at 03.00 that will kill all screens that has been running longer than 3 weeks. anyone done anything similar that can help? If you got a script or suggestion to a better method please help by posting :) I was thinking maybe somthing like this. First do a dump to textfile ps -U username -ef | grep SCREEN dump.txt then do a loop running through all lines of dump.txt with a regex and putting pid of the prosseses with STIME 3weeksago in a array. then do a kill loop on the array result.

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• Bind include all zones in a folder

  - by alexcepoi

  I have a webapp that acts as a DNS manager, writing all zones to "/var/named". I would like to be able to configure named to load all zones in that folder, without explicitely having to tell it which zone goes to which file. Is that remotely possible? The reason for this is that i will be having a lot of zones added/deleted and a lot of records for each of them. I was thinking for using a database for that, but the idea of doing 500 record inserts scares me (it needs to be snappy). It's easier to write to a file. Any suggestions?

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• I just deleted "/bin". What's the best way to recover?

  - by Tom Marthenal

  I just ran (not on purpose!) rm -rf /bin. I've booted down the computer and am using Finnix to try to recover from it. I have succeeded in mounting the drive, and confirmed that, yes, the entire /bin folder is deleted. Is it possible to recover from this without reinstalling the OS? I'm thinking that I could setup a VM with the same OS and architecture (Ubuntu Server 11.10 alpha release, x86) and install all the packages I had installed on the server, then just copy the /bin folder. Will this work? Am I better off just starting over?

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• App to slice'n'dice video, specifically remove chunks, on a Mac?

  - by Phillip Oldham

  I have a couple of collections of DVD Box-Sets I've ripped to my mac. Now I'd like to sweeten the viewing experience by removing the title sequences and credits so that viewing doesn't mean I have to keep reaching for the remote to skip 30 seconds of annoying music (think watching multiple episodes of Family Guy). If I can find an app that will let me do this reasonably quickly manually that would be great, but it would be perfect if I could dump a load of commands into a file and have everything trimmed while the mac is "inactive". I'm thinking that if I can specify chunks of time to remove from the original file that would be perfect. I had a quick look at importing into iMovie to do it manually and gave up at the "Processing Thumbnails" stage as it said it would be a couple of hours to produce them for a 45min mp4 file, which I can understand at 25fps but I'm not willing to wait, especially when I've got over a week's worth of files. Any suggestions?

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• Does using VLANs in your network infrastructure cause an appreciable decrease in performance?

  - by Peter Grace

  This is something I've never considered before and wanted the opinions of the experts. We use VLANs day in and day out for various network tasks. My modus operandi is that in general, if something supports VLANs, that port is getting trunked because it just makes a ton of sense if there's even the slightest chance you need to do more than one thing on that single link. As I ponder this, though, I'm wondering whether there's a performance penalty involved with this line of thinking? Is the impact negligible?

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• Should I run my own MTA?

  - by Mascarpone

  I need to send a large volume of emails, roughly 60.000 per week. At the moment we outsource this service to a third party, and we expect to double our volume within the next 6 months. Since the service is starting to be too expensive, I was thinking about setting up our own MTA. Our own SysAdmin told us it is not difficult at all to have our own MTA, but I'm afraid he might have oversimplified this. Is it difficult to handle a MTA? Should I be afraid that my MTA will lose the company mails? Should I stay with a third party service? p.s: The emails have been collected respecting the local legislation on privacy, so no spam.

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• HD 6970 Corrupted Video

  - by FailedDev

  considering this rig : i7 2600K 8GB RAM Corsair Vengeance kit 10-9-10-27 @1866 HD 4870 PSU Corsair AX 1200 I recently upgraded to a HD 6970 and I am getting the following - not so nice screens : http://imageshack.us/g/213/1000142z.jpg/ Had anyone any similar trouble at all? I am thinking that the card is DOA but could it also be the Mobo? Since I am in the BIOS I can't think how the mobo could be the problem. HD 4870 works perfect btw regardless of what I throw at it. Any way to prove that the card is OK? Thanks

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• Best blog package/platform (java, php etc)?

  - by user50912

  Hi Folks, I want to set up a blog, but I want it to reside on a URL I've bought, I also don't want any of the ads and such that sit around other blogs on blog specific sites like blogspot and generally want more control. I was thinking of getting shared hosting with mysql and such to get it going (as opposed to a VM which would be overkill). Then I just need to decide on the easiest quickest (and most secure) way of getting something up there. After some googling, I see b2evolution.net which sits on php, or Apache Roller, which seems to sit on Java. Could anyone offer any advice on whats my best approach here? Are there security concerns with either or has anyone any experience in this area? I really want setup time to be minimal, so I can concentrate of the feel of the blog rather than whats under the hood. Many Thanks.

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• What is a good web interface for remote linux load monitoring?

  - by Jakobud

  I'm looking for some type of remote linux monitoring software that you can view using a web interface. And I'm not just looking for the basic load information. I'm also looking for process information, similar to the info that you get from TOP. Like I'd just like to be able to pop open this webpage to view whats going on with the server at a moments notice. For example, perhaps just a basic PHP page that is on the server that uses basic AJAX to display and refresh results from the TOP command in the page. I was thinking about writing something like this, but I don't want to reinvent the wheel.

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• Batch converting video from avc1 to xvid

  - by Tommy Brunn

  I need a way to batch convert 720p video files from avc1 to xvid in Ubuntu 10.04. I'm not terribly concerned about file size, but I do wish to retain the picture quality as much as possible. I believe the audio is encoded as aac, which is fine for my purposes. What would be the best and easiest way to do this? I've tried using Handbrake. During my first attempt, I had it using ffmpeg to convert to MPEG-4, but that just gave me a super-low quality video at twice the file size. Trying h.264 now, so we'll see how that works out. But just in case it doesn't pan out so well, what other ways do you recommend? I was thinking I'd write a bash script to reencode the files one by one, but the problem is that I have very little knowledge about codecs and containers and whatnot - so I wouldn't know what parameters I would pass ffmpeg/mencoder.

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• Graceful logout in dwm

  - by Riateche

  I want dwm to close all windows gracefully when I press quit hotkey. I like Unity behaviour: it displays list of windows denying logout (for example, editors with unsaved changes) and do not logout before all issues are resolved and applications are closed. By default, dwm just end X session and all running applications are killed. I was thinking about writing a script that will retrieve list of all windows, gracefully close them and wait for their processes to finish. But I even don't know how to close windows. The only way I know is using wmctrl, and this utility doesn't work with dwm.

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• Trouble "turning off" dialtone in Exchange 2010

  - by makerofthings7

  Given that there are two ways to enable dial tone, I'm having trouble turing it off. The two ways I'm aware of are: Dismount the database, delete it or rename it, mount it, Exchange will prompt for a dial tone creation. Run the command: Get-Mailbox -Database DB1 | Set-Mailbox -Database DTDB1 as described here Both options should result in Outlook "thinking" it's in dial tone mode. Since my goal is to shut off dial tone, I think I need to learn the specific, technical parameters that "tell" Outlook that it is in dial tone mode. Question How can I turn off dial tone for a given database? What tells outlook that it's in dial tone mode?

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• What is the `shadow` group used for?

  - by Shtééf

  On my Ubuntu 9.10 system, there's a shadow system group. There does not appear to be any user assigned to this group at all. The only files that I can find belonging to this group are /etc/shadow and /etc/gshadow. I'm aware that the purpose of these files is to store the passwords separately, out of reach from regular users who still might want to access passwd for other reasons. But what is the purpose of the shadow group? The reason I'm curious about this, is because I'm thinking about configuring nsswitch.conf to store it elsewhere, and would like to know if anything is actually trying to access the shadow database using shadow group credentials.

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• Development environment clean installation

  - by ruigoncalves

  Hi there! I'm about to install a new and clean development environment. To accomplish that, I would like a Windows operating system (possibly Windows 7) and a Ubuntu one (possibly the most recent, 10.04). To allow sharing data between the two operating systems, I'm thinking to create a partition (workspace, for example) with using NTFS to format it and that be automatically mounted by Ubuntu. In terms of the partitioning schema, how would be better to organize the previous mentioned partitions? Thanks in advance, Best regards!

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• How to get the spec of a machine on Linux?

  - by machinePurchaser

  I am interested in getting the spec of a machine, because I am thinking getting a similar server. What I am mostly interested in knowing is the number of cores / CPUs / etc., the amount of memory, the speed of the CPUs, the CPU cache size, and any other detail which is important for performance. My question is two-fold: Which parameters should I be interested in other than the ones I specified above? Is there an easy way to read them off the machine in Linux? cat /proc/cpuinfo reveals a lot about the CPUs, for example... What about memory (would rather not rely on top), etc?

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• find files their name is smaller or greater than a given parameter

  - by Tzury Bar Yochay

  Say that in a given directory I got tzury@x200:~/Desktop/sandbox$ ls -l total 20 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P000 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P001 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P002 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P003 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N00.P004 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N01.P000 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N01.P001 drwxr-xr-x 2 tzury tzury 4096 2011-03-09 10:19 N01.P002 I seek for a bash way to grab the list of files which their name is either grater or smaller than a given parameter, for instance: $ my_finder lt N00.P003 shall return N00.P000, N00.P001 and N00.P002 $ my_finder gt N00.P003 shall return N00.P004, N01.P000, N01.P001 and N01.P002 I was thinking of iterating over for name in $(ls) and while $name != $2 but believe there are more elegant way of doing so

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