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  • Help with memory usage issues on VPS

    - by Niall Collins
    Hi there, I am running a VPS server with 6 .net web sites/applications running on it. I am having issues with performance on the server, mainly it running out of memory. I contacted the company that lease the server to me and they told me it was because I also had sql server 2008 express also running on the server. So I went ahead and removed this, uninstalled etc. However I still seem to be having issues. For example at present, looking at resource consumption, the virtual memory is: ID: vprvmem Current Use: 894,328,832 bytes Limit: 1,073,741,824 bytes This means useage of ~80%. Is there any way I can check out exactly that applications, web sites, software is taking up most of the servers memory, so I can look at rectifying it. I feel that 80% is much to high to allow for contingency for a spike in traffic. I have got extra memory resources added to the box recently, but I would prefer finding the source of the problem rather than throwing extra memory at it. Maybe these levels are correct and alls running ok, but would like to investigate it to make sure. My knowledge of hardware is limited as I mostly deal in the spectrum of software. So any tools out there that can help me or any pertient advice.

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  • Viability of Apache (MPM Worker), FastCGI PHP 4/5.2/5.3, and MySQL 5

    - by Adrian
    My server will be hosting numerous PHP web applications ranging from Joomla, Drupal, and some legacy (read: PHP4) and other custom-built code inherited from clients. This will be a development machine used by a dozen or so web developers and issues like fluctuating loads or particularly high load expectations are not important. Now, my question: are there any concerns I should know about when using Apache w/ MPM Worker, PHP 4/PHP 5.2/PHP 5.3 (all via FastCGI), and MySQL 5 (with a query cache of 64MB)? I have not tested the various applications extensively and I have only recently learned how to install PHP and utilize it via FastCGI (rather than mod_php, which in this case seemed impossible (considering the multiple versions of PHP and the desire to use MPM Worker over MPM Prefork)). I have come to understand that there could be concerns regarding XCache and APC, namely non-thread-safety issues where data becomes corrupted and the capability to use MPM Worker becomes null and void. Is this a valid concern? I have been using my personal testing server (running Ubuntu Server Edition 10.04 in VirtualBox) which has 2GB of RAM available to it. Here is the configuration used (the actual server will likely use a configuration more tailored to suit it's purposes): Apache: Server version: Apache/2.2.14 (Ubuntu) Server built: Apr 13 2010 20:22:19 Server's Module Magic Number: 20051115:23 Server loaded: APR 1.3.8, APR-Util 1.3.9 Compiled using: APR 1.3.8, APR-Util 1.3.9 Architecture: 64-bit Server MPM: Worker threaded: yes (fixed thread count) forked: yes (variable process count) Worker: <IfModule mpm_worker_module> StartServers 2 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 400 MaxRequestsPerChild 2000 </IfModule> PHP ./configure (PHP 4.4.9, PHP 5.2.13, PHP 5.3.2): --enable-bcmath \ --enable-calendar \ --enable-exif \ --enable-ftp \ --enable-mbstring \ --enable-pcntl \ --enable-soap \ --enable-sockets \ --enable-sqlite-utf8 \ --enable-wddx \ --enable-zip \ --enable-fastcgi \ --with-zlib \ --with-gettext \ Apache php-fastcgi-setup.conf FastCgiServer /var/www/cgi-bin/php-cgi-5.3.2 FastCgiServer /var/www/cgi-bin/php-cgi-5.2.13 FastCgiServer /var/www/cgi-bin/php-cgi-4.4.9 ScriptAlias /cgi-bin-php/ /var/www/cgi-bin/

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  • VirtualBox problems writing to shared folders (Guest Additions installed)

    - by vincent
    I am trying to setup a shared folder from the host (ubuntu 10.10) to mount on a virtualized CentOS 5.5 with Guest Additions (4.0.0) installed (Guest addition features are working ie. seamless mode etc.). I am able to successfully mount the share with: mount -t vboxsf -o rw,exec,uid=48,gid=48 sf_html /var/www/html/ (uid and guid belong to the apache user/group) the only problem is that once mounted and I try to write/create directories and files I get the following: mkdir: cannot create directory `/var/www/html/test': Protocol error I am using the proprietary version of VirtualBox version 4.0.0 r69151. Has anyone had the same problem and been able to fix it or has any idea how to potentially fix this? Another question, the reason for setting this up is this. Our production servers are on CentOS 5.5 however I am a great fan of Ubuntu and would like to develop on Ubuntu rather than CentOS. However in order to stay as close to the production environment I would like to virtualize CentOS to use a web server and use the shared folder as web root. Anyone know whether this isn't a good idea? Has anyone successfully been able to set this up? Thanks guys, your help is always much appreciated and if you need any more information please let me know.

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  • Western Digitial My Book: Can't access the data on the drive

    - by Bryan Denny
    My girlfriend has this external hard drive by Western Digital called a My Book. When the external drive is connected, it does not show it as an accessible disk drive on the computer. However, it shows up fine in Device Manager: I can also see it in Disk Management, but the volume is not mapped to a drive letter, nor can I change the drive letter: It only gives me access to Delete Volume: I would rather not lose the data on the drive if possible. What can I do from here to get to the data? Things I've tried/know: Uninstall drivers and re-install them Device does the same thing when attach to either her Win7 laptop or my Win8 laptop I don't think there's an issue with the HDD itself. No clicking noises, etc. I ran Western Digital Data LifeGuard Diangostics (DLGDIAG) and the SMART Status was a "PASS", all of the SMART Disk Information looked fine. I haven't had the time to run the diag tests yet but I do not believe it's a mechanical issue. The hard drive is inside of an enclosure, I have not attempted to pry the drive out yet. How can I get Windows to properly detect this drive?

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  • How can I know if a replacement display is compatible with my laptop?

    - by moraleida
    I have an Acer Aspire 4810TZ from 2010 which I truly love - it's a 3 year old notebook that still carries on for about 5 to 6h straight off the battery. I've also invested in it with an SSD and extra RAM and it's fine for my use right now. I'd really rather not just dump it. Now... its screen is dead and I'm looking for replacement parts, but it turns out to be a kind of expensive display - AUO B140XW02 14" LED. US$ 125 was the cheapest I found here (Rio de Janeiro, Brazil). The official dealer sells them for US$ 175. I'm aware of How do I know if a LCD is compatible with my Laptop? and Can I replace a laptop screen with one of a different resolution? but the answers don't really help me in this case. Also Replacing an LCD screen in a laptop gives me a hint but I'm completely dumb at hardware so this is why i'm asking: Is it possible to buy an LCD or a lower grade LED screen with the same connectors? What characteristics should I look for to find out if a certain display is compatible?

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  • Using Windows Explorer, how to find file names starting with a dot (period), in 7 or Vista?

    - by Chris W. Rea
    I've got a MacBook laptop in the house, and when Mac OS X copies files over the network, it often brings along hidden "dot-files" with it. For instance, if I copy "SomeUtility.zip", there will also be copied a hidden ".SomeUtility.zip" file. I consider these OS X dot-files as useless turds of data as far as the rest of my network is concerned, and don't want to leave them on my Windows file server. Let's assume these dot-files will continue to happen. i.e. Think of the issue of getting OS X to stop creating those files, in the first place, to be another question altogether. Rather: How can I use Windows Explorer to find files that begin with a dot / period? I'd like to periodically search my file server and blow them away. I tried searching for files matching ".*" but that yielded – and not unexpectedly – all files and folders. Is there a way to enter more specific search criteria when searching in Windows Explorer? I'm referring to the search box that appears in the upper-right corner of an Explorer window. Please tell me there is a way to escape my query to do what I want? (Failing that, I know I can map a drive letter and drop into a cygwin prompt and use the UNIX 'find' command, but I'd prefer a shiny easy way.)

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  • SQL 2K5 - Multiple databases vs. Multiple files

    - by Bob Palmer
    Hey all, quick question. Our current legacy system was built using multiple distinct databases (about ten of them). These are all part of the same discreet system, and a large number of SPs and functionalty span multiple databases. There are also key relationships that span (for example, a header table may be in database A with history, etc. in database B). When deploying multiple copies of our app to the same server therefore, we have to use multiple instances (because the database names are coded into so many sprocs). We're evaluating the idea of taking these ten databases (about 30gb total with individual sizes ranging from 100mb to 10gb) and merging them into a single database. Currently, we have our databases spread accross multiple spindles for better IO. The question I have is whether or not there is any performance loss or benefit of having 10 different databases vs. 10 different database files? i.e. rather than having three databases (A, B, and C) Disk D: A.mdf (1gb) Disk E: B.mdf (4gb) Disk F: C.mdf (10gb) Disk G: A_Log.ldf, B_Log.ldf, C_Log.ldf have one database (X) Disk D: X1.mdf (5gb) Disk E: X2.mdf (5gb) Disk F: X3.mdf (5gb) Disk G: X1_log.ldf,X2_log.ldf,X3_log.ldf Thanks! -Bob

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  • Should I use Evernote or Org-mode for taking notes?

    - by tobeannounced
    I am looking for an app that will help me manage my notes, and after coming across Org-mode, I was wondering whether Org-mode's functionality is strong enough that it can remove the need for me to use another note taking app (because org is more of a task management app), such as Evernote. My wishes for a note taking app are: can be accessed offline in some form, eg through an iPhone app or desktop client Org-Mode and Evernote can both do this, however it seems like MobileOrg is more aimed at tasks, rather than notes? If this is the case, I probably would use Evernote in addition to MobileOrg. I can clip web content into easily for research Evernote has the browser extension, how is it with Org-Mode? I know I can use c-c c-l, but how suited is it really for taking notes on stuff I am browsing in Chrome/Firefox? has voice notes on the iPhone and computer too, if possible Org-Mode cannot do this on the iPhone, on the computer could I record audio externally and then link the files in? I can add notes too on my iPhone & computer while not connected to the internet both can do this. The types of notes I am likely to have include: howtos/things I have learnt, documentation on my setup/stuff, research on things I may do in the future, ideas, and task specific notes. I have thought about where I would want to access each of these notes and will post that here if you think it would help. So, is Org-mode strong enough in note-taking and the requirements I listed that I can avoid the need to use a separate tool for taking notes?

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  • Install PHP mcrypt on Red Hat 4

    - by Chris
    I'm having a very hard time getting mcrypt for PHP installed on a Red Hat 4 server. I've downloaded the rpm but it tells me: error: Failed dependencies: php-common(x86-32) = 5.4.7-2.fc18 is needed by php-mcrypt-5.4.7-2.fc18.i686 rpmlib(FileDigests) <= 4.6.0-1 is needed by php-mcrypt-5.4.7-2.fc18.i686 libc.so.6(GLIBC_2.4) is needed by php-mcrypt-5.4.7-2.fc18.i686 libltdl.so.7 is needed by php-mcrypt-5.4.7-2.fc18.i686 rtld(GNU_HASH) is needed by php-mcrypt-5.4.7-2.fc18.i686 rpmlib(PayloadIsXz) <= 5.2-1 is needed by php-mcrypt-5.4.7-2.fc18.i686 So when I try to install one of those packages, they also require another 8 packages. So I'm diving into dependency hell here. Now if I try to compile mcrypt from source, this is what I get: checking for libmcrypt - version >= 2.5.0... no *** Could not run libmcrypt test program, checking why... *** The test program failed to compile or link. See the file config.log for the *** exact error that occured. This usually means LIBMCRYPT was incorrectly installed *** or that you have moved LIBMCRYPT since it was installed. In the latter case, you *** may want to edit the libmcrypt-config script: no configure: error: *** libmcrypt was not found But I was able to install libmcrypt from an rpm packages successfully. Any suggestions? Also, I cannot use up2date as it requires an active paid account from Red Hat and since the staff has changed rather rapidly in the last year where I work, no one knows if there even was any support accounts.

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  • How can Standard User change file associations in Windows 2000?

    - by Gary M. Mugford
    One of my clients is still running Win2K server with a host of Win2K workstations. And no net admin, due to the downturn of the economy over the years. I'm sort of helping out. Out of my depth, but I am a loyal foot soldier. A problem I encounter rather too often is a user double-clicks on a file in Explorer and then either gets no action, or the wrong program to run. It's a case of a missing or out-of-date file association. The current cure is to temporarily upgrade the user from Standard to Power, do the FA switch and then change back. As Winnie would whine, 'Oh, bother!' At any rate, I thought I'd ask here. Is there a method/program to run without the rigamarole FROM the Standard Users account on the workstation to edit/add a file association? I assume the program route would involve RunAs. I 'believe' most of the workstations run the RunAs service, but I could be wrong. I understand that's required, if there is to be a solution. Any help accepted with thanks. GM NOTE: Seems wassociate from http://www.xs4all.nl/~wstudios/Associate/index.html can resolve the issue.

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  • How can Standard User change file associations in Windows 2000?

    - by Gary M. Mugford
    One of my clients is still running Win2K server with a host of Win2K workstations. And no net admin, due to the downturn of the economy over the years. I'm sort of helping out. Out of my depth, but I am a loyal foot soldier. A problem I encounter rather too often is a user double-clicks on a file in Explorer and then either gets no action, or the wrong program to run. It's a case of a missing or out-of-date file association. The current cure is to temporarily upgrade the user from Standard to Power, do the FA switch and then change back. As Winnie would whine, 'Oh, bother!' At any rate, I thought I'd ask here. Is there a method/program to run without the rigamarole FROM the Standard Users account on the workstation to edit/add a file association? I assume the program route would involve RunAs. I 'believe' most of the workstations run the RunAs service, but I could be wrong. I understand that's required, if there is to be a solution. Any help accepted with thanks. GM NOTE: Seems wassociate from http://www.xs4all.nl/~wstudios/Associate/index.html can resolve the issue.

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  • Creating an Apache Virtual Directory, but updating Active Directory DNS

    - by SnoConeGod
    Hello all, I'm just getting started with using the Zend Framework and am following a recommended procedure where I am supposed to create an Apache Virtual Directory for the public-facing portion of a new Zend project. I don't THINK I had any issues creating the Virtual Directory, but my knowledge of the required DNS changes is rather lacking. The dev server I'm using is on a Microsoft Windows Active Directory domain, so I've added A records for both the server name and the subdomain. Still, trying to browse to the site from a Windows 7 PC isn't working properly. What am I missing? What's the proper set of steps for getting an Apache-served subdomain to appear properly in a peer computer's web browser? Details below: server: Debian command-line only, freshly installed today with Zend Server CE LAMP stack server name: ZENDEV subdomain: SQUARE.ZENDEV AD Domain functional level: 2008 mixed (run by a mishmash of 03 and 08 servers) attempting to visit the sites: http://square.zendev and http://square.zendev.domain.local (name of domain redacted, but using the local (not com) suffix) Apache Virtual Directory added to httpd.conf: NameVirtualHost *:80 <VirtualHost *:80> DocumentRoot "/var/www/square/public" ServerName square.localhost </VirtualHost> Is this only a problem with DNS? Or with DNS and my Virtual Directory? Thanks! John

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  • Change Windows Authentication user for Sql Server Management Studio

    - by Asmor
    We're using Sql Server 2005 with Windows Authentication setup. So normally, when you log in using e.g. Sql Server Management Studio, it forces you to log in at MACHINE_NAME\Username. Anyways, on this one particular computer, the person said they had to make a new account called User01 to do something and showed me where she'd created it under security in the "master" system database. And so now when she logs in, it's listed as MACHINE_NAME\User01 (not the actual Windows user name). It's still set to Windows Authentication, though, and I'm unable to change the login name. Now here's where the real problem comes in... I didn't realize that she was being logged in under this user name at the time, and I disabled it to see what would happen. Now I can't log into the server under her account. I created a new account in Windows called test, and as expected SSMS had the username as MACHINE_NAME\test, and I was able to log in fine. However, the area where the User01 account was listed is not visible to me as far as I can tell and so I can't reenable it. I also tried running the following query: alter login User01 ENABLE And got this error: Msg 15151, Level 16, State 1, Line 1 Cannot alter the login 'User01', because it does not exist or you do not have permission. So in a nutshell, ideally I'd like to reenable User01 somehow, just to get things back to where they used to be. Failing that, how can I force SSMS to log in using the Windows account name as it should be, rather than trying to use User01?

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  • Looking for recommendations on OCR problem - tabular numeric data

    - by ldigas
    I have 20 pages of experiment measurement data which I need to digitalize. The results are in tabular form, scanned in 600 dpi resolution, and as far as scans go, they came up pretty clean and readable. For an example of how it looks see here (but beware: it is a rather big scan; about 5Mb; no problem for any broadband connection, but dialups should approach with caution!) ... and I need it finished by sunday afternoon (:-o) <-- smiley in a state of panic (then why did't you start sooner?)... yea, yeah ... I know ... but, it came up late, and I wasn't thinking I was gonna need this data also. So, I'm looking for recommendations. I haven't much experience with OCR programs, save scanning a page or two of pure text, but just to mention, I haven't the wish also to test out every OCR program out there. So this isn't a "name your OCR favourite". What I'm looking is advice from someone who's done something like that, and his/hers experience on what would be the best way to undertake. I need the data in txt form but since it will have to be checked (by drawing it, and just simply watching whether some points "jump out") I'll probably be entering it in Excel at first.

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  • x display problems in centos 5.5

    - by John Ruiz
    I have a Dell E510 desktop with a geForce 7200 instead of the ATI x600 it came with. I have attempted to install CentOS 5.4 x86_64 (DVD), CentOS 5.5 (net install), and CentOS 5.5 x86_64 (DVD). Gnome desktop. All of these run into the same issue. When I put the DVD into the machine and reboot, the installer begins and I select "graphical install". I see text that say anaconda is starting, and then my screen goes nuts. It's not black, but rather a screen full of diagonal stripes or multiple colors. So I attempted to do a text install of CentOS 5.5 (DVD) and got it installed. When I booted for the first time, I logged into the virtual console and started X (startx). The desktop came up and it already had the display properties GUI up. I changed it from 800x600 to 1680x1050, saw that there were updates available, installed them, and then rebooted. When I start X from the virtual console this time, I get exactly the same display problem as I described before. Does anyone know what might be causing this and what I can do about it? edit: I should also mention that I'm capable of installing Windows 7 and Ubuntu 10.04 onto this machine with absolutely no issues at all.

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  • Permissions Required for Sharepoint Backups

    - by Wyatt Barnett
    We are in the process of rolling out an extranet for some of our partners using WSS 3.0 as the platform. We already use it internally for a variety of things, and we are using the following powershell script to backup the server: param( $url="http://localhost", $backupFolder="c:\" ) [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint") $site= new-Object Microsoft.SharePoint.SPSite($url) $names=$site.WebApplication.Sites.Names foreach ($name in $names) { $n2 = "" if ($name.Length -eq 0) { $n2="ROOT" } else { $n2 = $name } $tmp=$n2.Replace("/", "_") + ".sbk" $saveas = "" if ($backupFolder.Length -eq 0) { $saveas = $tmp } else { $saveas = join-path -path $backupFolder -childPath $tmp } $site.WebApplication.Sites.Backup($name, $saveas, "true") write-host "$n2 backed up to $saveas." } This script works perfectly on the current installation running as our domain backup user. On the new box, it fails when ran as the backup user--claiming "The web application located at http://extranet/" could not be found. That url does, in fact, work so I'm fairly certain it isn't anything that dumb and rather is some permissions issue. Especially because, when executed from my security context, the script works perfectly. I have tried making the backup user a farm owner, as well as added him to the various site collection admin groups on the extranet. The one major difference between the extranet and the intranet server is that the extranet has an alternative access mapping (for https://xnet.example.com) and also uses forms authentication for that mapping. Anyhow, what permissions (or other voodoo) do I need to setup to get this script to work properly?

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  • Linux/Unix in Windows

    - by Dmitriy Nagirnyak
    Hi, What would be the best way to get the full-blown Unix/Linux bash inside Windows? I don't mean the Virtual Machine, but rather only the terminal with mounted NTFS drives. This way I could use the power of Unix/Linux still being on Windows. The things I want to be able to do from the terminal: Package management (apt-get in Debian). SSH. File operations (including grub and similar). Run a web server (Apache, nginx) for testing purposes. Easy to use: start terminal - Linux is on, end terminal - Linux is shut down. Would be nice to be able to copy-paste from Windows into Terminal and vice versa. This really feels like a separate OS and I realize that VM would, probably, be the best thing. But I guess it should be possible to have a lighter installation. THE NOTE: I cannot just use Linux because of I still need to do development on Windows. Also I am a Linux noobie - just getting started with it so sorry if asking something obvious/stupid. Thanks, Dmitriy.

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  • Break all hardlinks within a folder

    - by Georges Dupéron
    I have a folder which contains a certain number of files which have hard links (in the same folder or somewhere else), and I want to de-hardlink these files, so they become independant, and changes to their contents won't affect any other file (their link count becomes 1). Below, I give a solution which basically copies each hard link to another location, then move it back in place. However this method seems rather crude and error-prone, so I'd like to know if there is some command which will de-hardlink a file for me. Crude answer : Find files which have hard links (Edit: To also find sockets, etc. that have hardlinks, use find -not -type d -links +1) : find -type f -links +1 A crude method to de-hardlink a file (copy it to another location, and move it back) : Edit: As Celada said, it's best to do a cp -p below, to avoid loosing timestamps and permissions. Edit: Create a temporary directory and copy to a file under it, instead of overwriting a temp file, it minimizes the risk to overwrite some data, though the mv command is still risky (thanks @Tobu). # This is unhardlink.sh set -e for i in "$@"; do temp="$(mktemp -d ./hardlnk-XXXXXXXX)" [ -e "$temp" ] && cp -ip "$i" "$temp/tempcopy" && mv "$temp/tempcopy" "$i" && rmdir "$temp" done So, to un-hardlink all hard links (Edit: changed -type f to -not -type d, see above) : find -not -type d -links +1 -print0 | xargs -0 unhardlink.sh

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  • SQL Server 2008 second instance times out when logging in -- but only the first time?

    - by Kromey
    This is a strange one that has plagued me for a while now. When logging in to the second instance of SQL Server 2008 on one of our database servers, we get a timeout error: Cannot connect to servername\mssqlserver2. Additional information: Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. (Microsoft SQL Server)") (This is the error message when trying to connect with Microsoft SQL Server Management Studio; other tools experience the same error, but of course say it in different ways.) Immediately re-attempting to log in works just fine, so whatever the cause it's ephemeral! This happens regardless of user or authentication type (both Windows and SQL Server authentication methods are supported on this instance). What's even weirder, though, is that the first instance on this server has never once demonstrated this problem. Server is a Windows Server 2008 R2 virtual server, hosted in Microsoft Hyper-V (host is likewise Server 2008 R2). The server has 2GB of RAM, and seems to regularly be using 90% of that -- could low memory be the cause of this issue? I could see this second instance -- which is not used very often yet -- being swapped out to disk, and then taking too long to load back into memory to respond in time to the connection request, but I'd rather have more than just my own hunch before I go scheduling a downtime for this server (the first instance is used regularly) and then just throwing extra resources at it in the blind hope that the problem goes away.

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  • Software mirroring (RAID1) versus "Fake Raid" for new Windows 7 install

    - by kquinn
    I've just ordered two new hard drives for my main desktop and a copy of Windows 7 Professional 64-bit. I'd like to do a clean install of Win7 onto the new drives (leaving my old XP Pro boot partition around for a while in case something goes disastrously wrong, etc.). I want to have them set up in mirrored (RAID-1) mode. My understanding is that Win7 Pro can do software mirroring, but can I set this up directly at install time? If so, how? Note that I'd like the disk to be split into three partitions (OS/Apps&Data/Bulk data), all of which should be mirrored. Would it be better (more reliable or faster) to use my motherboard's hardware RAID support? My motherboard is an older nVidia nForce 680i SLI, which is not the most stable of motherboards, and I'm not sure how trustworthy its RAID1 configuration might be (or if Win7 could even detect and install onto a hardware-mirrored volume). Also, the performance characteristics of RAID1 are rather different than RAID0 or RAID5, and I'm wondering if Win7's software mirroring might actually be faster than hardware RAID1 (for example, I'm more of a Unix admin when I have to wear the sysadmin hat, and I've had great success deploying ZFS; most hardware RAID1 implementations have to read both disks and compare results to look for data errors, but ZFS can read from only one disk in the mirror and just use the built-in checksum, meaning it can have up to 2x the number of reads in-flight, as long as there's no data corruption). Edit: Okay, my question about whether Windows 7 can do software mirroring has been answered, and it can. I'm still unsure whether Windows software RAID or my motherboard's hardware "fake RAID" function is a better choice, though. Remember, I'm only interested in mirroring -- not the more complicated striping or parity operations that generally show the poor performance of crappy motherboard RAID solutions.

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  • Somewhat powerful server needed for computationally expensive stuff

    - by Dane Larsen
    So here's my problem. My Dad runs a company that does some rather computationally expensive stuff. This is not supercomputer level stuff, but it does take several hours to run the average job on his Core i7 desktop. He asked me to look into a way to have his customers use the code on an hourly basis, namely via a server. Ideally he'd be able to buy a box for about $1000, and hook it right up to our home connection. Unfortunately, the data that needs to be both sent and received is on the order of several hundred megs. We live in a rural area, and the fastest connection offered is 1.5Mbit/s. Download. It's like .3Mbit/s upload. Not workable. What are the options for this kind of thing? Ideally, we'd have about 2GB of ram, 300-500GB of storage, and a nice dual core, and it has to run some flavor of Linux. Any suggestions? Thanks in advance EDIT: Also, ideally the monthly price would be < $100 per month.

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  • Cisco ASA with CSC module bypassing

    - by Shial
    We recently upgraded from a Watchguard X5500e Peak firewall appliance to a Cisco 5500 ASA with the CSC module. The ASA is running the 8.2 software and the CSC is on the 6.3.1172 software. We've finally gotten everything stabilized after a few weeks of pulling hairs and gnashing of teeth and now its down to trying to setup a few items that were lower on the priority list. With the watchguard we were able to go with the browser to an internal webpage and authenticate against the firewall to allow us to bypass the filters. Useful when a classroom here needs access to streaming media or an executive needs us to download a video. I'm trying to setup something similar but I'm fairly inexperienced with the Cisco devices like this ASA so I'm not sure if its treated as a VPN connection or some kind of ACL. Ideally we would want to setup more than one to limit exposure rather than one thats wide open when used. I did a search and couldn't find anything related to thing in the other questions asked here and I have had no luck googgling it either.

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  • virtual disk image - file or partition

    - by tylerl
    I'm looking at the differences between using a file versus a partition to store a virtual disk image in VM use. The common knowledge is that partition-based images are faster than file-based images because of a decreased overhead. It makes sense, but I've never seen any actual numbers. My own testing bears out a different result. When I benchmark a direct-to-partition virtual disk, then format that same partition with ext4, create a virtual disk image stored on that ext4 filesystem, and then benchmark that, I see no speedup at all for the direct-to-partition virtual disk. Instead on some systems the file-based image is even faster (possibly due to host OS caching or something like that). This test was repeated many times on many systems, with fairly consistent results. So perhaps throwing out the performance justification, is it still considered better to use a partition rather than a virtual disk image? Is there some other reason why direct partition access is better than image files? Or perhaps is there some reason to go the other way around? Perhaps an advantage in one of the virtual disk file formats that you don't get with raw partition images?

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  • Saving a file in a CSV type in Excel always removes the BOM

    - by rickp
    I've been trying to find a reasonable solution/explanation (unsuccessfully) to find out why Excel defaults to removing the BOM when saving a file to the CSV type. Please forgive me if you find this a duplicate of this question. This handles reading CSV files with non-ASCII encoding, but it doesn't cover saving the file back out (which is where the biggest issue lies). Here is my current situation (which I'm going to gather is common among localized software dealing with Unicode characters and a CSV format): We export data to a CSV format using UTF-16LE, ensuring the BOM is set (0xFFFE). We validate after the file is generated with a Hex editor to ensure it was set correctly. Open the file in Excel (for this example we're exporting Japanese characters) and witness that Excel handles loading the file with the correct encoding. Attempts to save this file will prompt you with a warning message indicating that the file may contain features that may not be compatible with Unicode encoding, but asks if you'd like to save anyway. If you select the Save As dialog, it will immediately ask you to save the file as "Unicode Text" rather than CSV. If you select the "CSV" extension and save the file it removes the BOM (obviously along with all the Japanese characters). Why would this happen? Is there a solution to this problem, or is this a known 'bug'/limitation of Excel? Additionally (as a side issue) it appears that Excel, when loading UTF-16LE encoded CSV files, only uses TAB delimiters. Again, is this another known 'bug'/limitation of Excel?

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  • Windows Explorer slow to open networked computer, fast to navigate once opened

    - by Scott Noyes
    I open Windows Explorer and enter an IP for a computer on my home network (\\192.168.1.101). It takes 30 seconds or more to present a list of the shared folders. It does not appear to be an initial handshaking/authentication thing; even if I allow the view to load and then immediately load the same again, it is always slow. Once they appear, navigating through folders and opening files is fast. Also, navigating directly to a folder (\\192.168.1.101\My Music) is fast, even if it's the first connection since a restart. Using \\computerName instead of the IP address gives exactly the same results. Pings return in 1ms. net view \\computerName (or \ipAddress) returns the list of shared folders fast. This makes me suspect an Explorer issue rather than a network issue. Suspecting that the remote computer was being automatically indexed or something, I went into Tools-Folder Options-View and unchecked "Automatically search for network folders and printers," but that made no difference. De-selecting the "Folders" icon near the address bar makes no difference. Adding the IP address and computer name to the hosts file makes no difference. Both computers involved are laptops running Windows XP. Both have WiFi and cable adapters. Mine is not connected via cable. The result is the same whether the target is plugged in to the cable or not (although the IP address changes - 192.168.1.101 over cable, 192.168.1.103 over WiFi.) We are using DHCP assigned by the router.

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