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  • Ubuntu 64-bit vs 32-bit

    - by tukushan
    Is it worth installing the Ubuntu 9.10 64-bit version over the 32-bit x86 version? I will get the ability to address more than 4 GB of memory, but other than that, how does the 64-bit version fare in terms of performance and stability?

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  • Xen command xl doesn't create a vm but xend/xm does

    - by ineff
    I'm a newbie to Xen, and I've recently installed Xen 4.2 by sources on my system. I've found a strange thing I've a VM when I start it via the command "xm create machine.cfg" all work fine, but if I use "xl create machine.cfg" it gives me the following error xc: error: panic: xc_dom_core.c:442: xc_dom_alloc_segment: segment ramdisk too large (0x4ba 0x2000 - 0x1bd9 pages): Out of memory libxl: error: libxl_dom.c:208:libxl__build_pv xc_dom_build_image failed: Invalid argument cannot (re-)build domain: -3 xenconsole: Could not read tty from store: No such file or directory What could be the problem? Any idea?

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  • Excel 2007 charts disappearing

    - by AppsByAaron
    I have an Excel 2007 file with macros and VB (.xlsm) and one of the worksheets has charts. When I open the file those charts are shown. However when I CTRL+Scroll to zoom in the charts vanish. I need to be able to see the charts so I can move/resize them. Any help is appreciated. Running XP Pro with latest SP Over 3 GB memory Office 2007 Pro

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  • Cron job failing to backing up a Postgres database

    - by user705142
    I'm unsure what's going on here: I've got a backup script which runs fine under root. It produces a 300kb database dump in the proper directory. When running it as a cron job with exactly the same command however, an empty gzip file appears with nothing in it. The cron log shows no error, just that the command has been run. This is the script: #! /bin/bash DIR="/opt/backup" YMD=$(date "+%Y-%m-%d") su -c "pg_dump -U postgres mydatabasename | gzip -6 > "$DIR/database_backup.$YMD.gz" " postgres # delete backup files older than 60 days OLD=$(find $DIR -type d -mtime +60) if [ -n "$OLD" ] ; then echo deleting old backup files: $OLD echo $OLD | xargs rm -rfv fi And the cron job: 01 10 * * * root sh /opt/daily_backup_script.sh It produces a database_backup file, just an empty one. Anyone know what's going on here?

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  • How can I prevent frame breaking in Chrome from Google image searches, etc.?

    - by Nick T
    More often than not, websites with any number of images will use frame breaking scripts to lose Google Image Search's results frame (e.g. this relatively benign case). While I somewhat understand the reasons for doing so (as ineloquently put forth by these people), more often than not, such breakout/redirects dump me to a useless page that doesn't have the image I was looking for, plus it makes going "back" rather irritating as you need to click twice or more (some pages jam you through several redirects it seems) in rapid succession. Other than having reflexes to copy the 'Full-size image' hyperlink quicker than loading the breakout script, is there a way to get my actual result?

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  • How to automatically print the contents of a folder in OS X?

    - by MDRoz
    I would like to be able to set up a folder on my Mac, where I could dump files and have them be automatically sent to the default printer. This way I would be able to print files at home when I'm not physically at home, using something like Dropbox. It wouldn't have to be real-time; i.e., a scheduled job that checks the folder every so often would be acceptable. What's the easiest approach? Automator? Applescript? Cron job?

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  • Shortcut key to skip cursor from left/right of every typed word

    - by user176368
    I want to know if it is even possible to jump my cursor from left/right of every typed word using Vimperator, a Firefox addon that behaves like Vim, including its shortcut keys. So a good example would be: I took a marvelous dump right before bed and I so happen to sleep better.- Now if my cursor is at the end of that sentence (hence the dash) how can I jump my cursor right before the word better by just using a shortcut key? by default Ctrl+A & Ctrl+E are shortcut keys that brings your cursor to beginning/end of the current line your on.

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  • A Versatile Physical Server

    - by Paul
    How does one judge potential memory and processor needs for linux web servers? Specifically, given: A Debian or Ubuntu OS Running a web server (apache2), and A database (MySQL), and A DNS server (bind), and Being used by up to 100 concurrent users, at some points each downloading high-resolution (0.5 to 1 MB) images via a web app. How much should one budget in terms of RAM, type of processor(s), and number of cores? Thanks!

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  • 7-Zip compression on multi-core computers

    - by Peter Mortensen
    Does 7-Zip take advantage of multiprocessor or multi-core systems when compressing? For example, would there be a close to 16 times speed-up on a 16 core system assuming no disk or memory bottlenecks? Or is it is limited to 2 threads (2 times speed-up on systems with more than one CPU or core)?

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  • Hardware for multipurpose home server

    - by Michael Dmitry Azarkevich
    Hi guys, I'm looking to set up a multipurpose home server and hoped you could help me with the hardware selection. First of all, the services it will provide: Hosting a MySQL database (for training and testing purposes) FTP server Personal Mail Server Home media server So with this in mind I've done some research, and found some viable solutions: A standard PC with the appropriate software (Either second hand or new) A non-solid state mini-ITX system A solid state, fanless mini-ITX system I've also noted the pros and cons of each system: A standard second hand PC with old hardware would be the cheapest option. It could also have lacking processing power, not enough RAM and generally faulty hardware. Also, huge power consumption heat generation and noise levels. A standard new PC would have top-notch hardware and will stay that way for quite some time, so it's a good investment. But again, the main problem is power consumption, heat generation and noise levels. A non-solid state mini-ITX system would have the advantages of lower power consumption, lower cost (as far as I can see) and long lasting hardware. But it will generate noise and heat which will be even worse because of the size. A solid state, fanless mini-ITX system would have all the advantages of a non-solid state mini-ITX but with minimal noise and heat. The main disadvantage is the read\write problems of flash memory. All in all I'm leaning towards a non-solid state mini-ITX because of the read\write issues of flash memory. So, after this overview of what I do know, my questions are: Are all these services even providable from a single server? To my best understanding they are, but then again, I might be wrong. Is any of these solutions viable? If yes, which one is the best for my purposes? If not, what would you suggest? Also, on a more software oriented note: OS wise, I'm planning to run Linux. I'm currently thinking of four options I've been recommended: CentOS, Gentoo, DSL (Damn Small Linux) and LFS (Linux From Scratch). Any thoughts on this? Any other distro you would recomend? Regarding FTP services, I've herd good things about FileZila. Anyone has any experience with that? Do you recommend it? Do you recommend something else? Regarding the Mail service, I know nothing about this except that it exists. Any software you recommend for this task? Home media, same as mail service. Any recommended software? Thank you very much.

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  • How to find the process(es) which are hogging the machine

    - by Aaron Digulla
    Scenario: All of a sudden, my computer feels sluggish. Mouse moves but windows take ages to open, etc. uptime says the load is 7.69 and raising. What is the fastest way to find out which process(es) are the cause of the load? Now, "top" and similar tools isn't the answer because they either show CPU or memory usage but not both at the same time. What I need is the single command which I might be able to type as it happens - something that will figure out any of System is trying to swap 8GB of RAM to disk because process X ... or process X seeks all over the disk or process X uses 400% CPU" So what I'm looking for is iostat, htop/atop and similar tools run into one with an output like this: 1235 cp - Disk trashing 87 chrome - Uses 2&nbsp;GB of RAM 137 nfs_bench - Uses 95% of the network bandwidth I don't want a tool that gives me some numbers which I can analyze but a tool that tells me exactly which process causes the current load. Assume that the user in front of the keyboard barely knows how to write "process", but the user is quickly overwhelmed when it comes to "resident size", "virtual memory" or "process life cycle". My argument goes like this: A user notices a problem. There can be thousands of reasons ... well, almost :-) The user wants to know the source of the problem. The current solutions give me lots of numbers, and I need to know what these numbers mean. What I'm looking for is a meta tool. 99% of the data is irrelevant to the problem. So what the tool should do is look for processes which hog some resource and list only those along with "this process needs a lot of CPU, this produces many IRQs, this process allocates a lot of RAM (and it's still growing)". This will be a relatively short list. It will be much more simple for someone new to this to locate the culprit from this list than from the output of, say, htop which gives me about 5000 numbers but requires me to fold multi-threaded processes myself (I have 50 lines which say VIRT 2750M but only 16 GB of RAM - the machine ought to swap itself to death but of course, this is a misinterpretation of the data that can happen quickly).

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  • iSCSI NAS supporting VMware Esxi 5.1 servers in a software development environment

    - by BigTFromAZ
    I would like to build (or purchase) the smallest, quietest most energy efficient servers that I can for a low demand environment. These would only have a small disk for guest swap files, a CPU (XEON preferred), 32 Gb of memory and minimal graphics. The virtual machines need to be up but demand will be quite low. Any thought on case, format processors, fans, motherboard, et al? Small, quiet and lots of RAM are the operative words here.

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  • 256MB VPS on XEN

    - by user63410
    I am thinking of getting a 256MB server on XEN but not sure is it capable of handling this setup: Varnish + Nginx + Eaccelerator + PHP-FM + MySQL + Mail/FTP? I've tried this setup on OpenVZ and it was partly disastorous, especially with varnish in the equation, i've heard that XEN is better at memory management, sometimes shaving off 50mb or more in comparison to OpenVZ setups... if anyone has any helpful suggestions / input please let me know thanks

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  • negative regexp in Squirm (for Squid). Possible ?

    - by alex8657
    Did someone achieve to do negative regexp (or part of) with Squirm ? I tried negative lookahead things and ifthenelse regexps, but Squirm 1.26 fails to understand them. What i want to do is simply: * If the url begins by 'http://' and contains 'account', then rewrite/redirect to 301:https:// * It the url begins by 'https://' and does NOT contains 'account, then rewrite/redirect to 301:http:// So far, i do that using 2 lines of perl, but squirm redirectors would take less memory

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  • Installing grub2 on ubutntu with software raid mirroring

    - by Marko
    Hi guys, Can someone help me out on this? I accidentally installed grub on usb flash drive during ubuntu server installation. Now I cant boot system without drive attached to server. I want to install grub on hard drive with grub-install but i don't know what to set as location for boot loader? my fstab looks like this: file system mount point type options dump pass proc /proc proc nodev,noexec,nosuid 0 0 /dev/mapper/pdc_jdbeghhjg1 / ext4 errors=remount-ro 0 1 /dev/mapper/pdc_jdbeghhjg5 none swap sw 0 0 and partition tables for hard drives as this: Device Boot Start End Blocks Id System /dev/sda1 2048 1215662079 607830016 83 Linux /dev/sda2 1215664126 1249998847 17167361 5 Extended /dev/sda5 1215664128 1249998847 17167360 82 Linux swap / Solaris Device Boot Start End Blocks Id System /dev/sdb1 1 75672 607830016 83 Linux /dev/sdb2 75672 77809 17167361 5 Extended /dev/sdb5 75672 77809 17167360 82 Linux swap / Solaris ?

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  • How to partition my two hard drives

    - by Thoma Bigueres
    I've got a computer running under the OS "Window Server 2008 R2" on which i have : 60GB disk C: NTFS (Disk 0) 40GB unallocated memory (Disk 1) I would like to partition my disk so that i'll have : 30GB disk C: 70GB disk D: Can you help me on the step i should do to be abble to have this configuration ? I saw that first of all i should merge the two volumes into one, but when i click right on the c: Volume, i can't click on the "Extend Volume" link. Do you know how i can overcome this ? Thanks a lot

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  • Anyone tried boosting Windows performance by putting Swap File on a Flash drive?

    - by Clay Nichols
    Windows Vista introduced ReadyBoost which lets you use a Flash drive as a third (after RAM and HD) type of memory. It occurred to me that I could boost peformance on an old PC here w/ Win XP (32 bit, max'd at 4GB RAM) by putting it's swap file (page file) on a flash drive. (Now, before anyone comments: apparently Flash drives (10-30MB/s transfer rates) are slower than HDD (100+ MB/s) (I'm asking that as a separate question on this forum).

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  • MySQL - complete server migration (Ubuntu) [closed]

    - by Mr A
    Possible Duplicate: How to copy and move mysql database Dump all databases with SSH access I'm setting up a new dev machine, and I have the old one sitting right next to me. I'd like to do an exact copy of all MySQL structures and data from the old machine to the new. Nothing fancy needs to happen (it's a dev machine). No replication. I don't care about "downtimes" etc. Is there a super simple way to do this? For example, I have SSH on the old server, can I just use Nautilus, do a connect to server, and then transfer a folder over, replacing another folder with it and be done? It's the same version of MySQL on both sides. Same version of Ubuntu. Same in most respects.

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  • Hyper-V stuck restoring VM

    - by Blax
    I have a hyper-v server that runs 5 virtual machines. I believe the physical box rebooted last night which is usually not a problem but this morning one of the virual machines is stuck at "restoring 0%". I have rebooted the physical machine and same thing, 4 virtual machines come up fine the 5th gets stuck at "restoring 0%". I right-clicked the VM in hyper-v manager and selected "Cancel restore" and nothing happens. I was able to copy the VHD to another hyper-v box and light it up there so I know the VHD is good. Any ideas on what to look at next? If I can I would like to just dump the saved state and move on, or if there is a better way to handle it I'm all ears. TIA!!

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  • IIS7 application pool spawning worker processes

    - by scott_lotus
    IIS7 ASP.net 2.0 Number of worker processes growing out of control in single app pool. Appear to keep spawning upwards. Monitoring the w3wp.exe process i can see "current connections" to web service sometimes spawn out of control but not always , only worker processes are consistently growing when this issue occurs. Number of worker processes normally 0 - 20 , when spawning they can reach 1000 + This was deployed in: %windir%\Microsoft.NET\Framework64\v2.0.50727\aspnet.config maxConcurrentRequestsPerCPU="50000" maxConcurrentThreadsPerCPU="0" requestQueueLimit="50000" But issue still occurs. Have tried running PROCDUMP on the exe process but the mini dump isnt a great help. I understand this is 99% probable an app issue , what i need help with is tracking it down. Thank you for any tips. Scott

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  • Fusion 3, Windows 7, frequent blue screens

    - by kenny6127
    Is anyone else seeing this problem? A solution would be great (hey, it's Windows, it's gonna blue screen, just gotta deal with it), but it's also nice to know if it's something specific to my configuration, or if a lot of folks are having the same issue. Here's the details: * MacBook Pro 15" unibody, 4 GB, 2.4 GHz, 10.5.8 * Fusion 3.0.1 * Windows 7 Pro, 32-bit (clean install, not migrated from Boot Camp or anything) Blue screens happen nearly every time the MBP cover is closed for a short period of time (< 3 minutes). If the cover is closed for a half hour or longer, the VM is fine. I'm guessing it might be related to sleep, but that's hard to tell, and the Windows crash dump logs are pretty useless. Thanks!

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