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• Microsoft Forefront Management Gateway 2010 - Which topology to choose for monitoring only server?

  - by MadBoy

  Hello, I've installed Forefront and wanted to use it as monitoring traffic solution until we decide to put it as a router. I've 2 nic's assigned to this virtual machine. One NIC has connected port which is "mirror port" of our WAN redirected on switch so it sees all the network traffic flying by. The other NIC is internet access. This server is located inside our lan network. What topology should i choose and which options I should look at to be able to see which traffic is used (SMTP, WWW etc) and who does what? We had cases of infected machines with spam and we want to be able to see that some machine is sending large amounts of mails. Is that possible ?

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• Deploying website content via Subversion

  - by Johann

  we have recently set up a new development infrastructure and process for one of our clients. This involves the strict use of subversion as a central source code repository. The svn repositories contains a seperate branch for code on the live system (/branches/live/). The repositories are use for PHP content (mainly Wordpress Blogs), but in future they may hold other asp code as well. Bonus points for a solutions which more or less in the same way with ASP code on Windows Server 2008 R2. We have two servers: one staging system and one live system. The staging system is updated regularly with the code of the trunk. The live system is update manually. Each webroot on the servers are working copy of either the trunk (staging system) or the live branch (live system). The current workflow is: Developing on the dev's box - commit into the trunk - auto-deploy on staging system - testing on the staging system - merging into /branches/live/ - manual deployment on live system. This works for one-way changes very well, however we have some troubles on every wordpress (or plugin) update: The WP update process removes the directories and unpack the archive of the new version. This removes the svn admin area as well, which produces a lot of errors. We could switch to SVN 1.7 with a single, global admin area, but this would only solve on part of the problem. Finally, we have done the update via the WP Gui, restored the svn admin area, added/removed the files and committed the changes to the trunk. After testing, we had to do basically the same thing on the live server (except the commit, we just reverted the changes and merged the new files from the staging system to the live system). I'm currently thinking of the following: The htdocs of each website is a svn export Each website has a svn working copy beside the htdocs directory a script which "replays" the changes in the wc from htdocs after an update in WP (rsync'ing the changed files to the working copy, rsync'ing new files and svn add them and finally svn delete the deleted files). The script would have to exclude some files (like wp-config.php, uploads/temp directories, etc.). Are there better ways to do this? Unfortunaly, a complete CI server is out of scope due to time and budget limitations.

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• NAS is intermittently inaccessible

  - by Natalie

  Model: QNAP TS-410 Turbo NAS Firmware version: 3.2.5 Build 0409T Issue: Each day, users connect to share folders on the NAS system and have read/write permissions for the share folders to which they need access. However, it often asks them for their log-in details and - when provided with right (or wrong) credentials for a user with read/write permissions - it denies them access. I've checked the logs and I keep seeing the following warnings: 2011-11-23 16:26:29 System 127.0.0.1 localhost Re-launch process [rpc.mountd]. 2011-11-23 16:26:16 System 127.0.0.1 localhost Re-launch process [proftpd]. 2011-11-23 16:25:30 System 127.0.0.1 localhost Re-launch process [rpc.mountd]. 2011-11-23 16:25:15 System 127.0.0.1 localhost Re-launch process [proftpd]. 2011-11-23 16:24:33 System 127.0.0.1 localhost Re-launch process [rpc.mountd]. 2011-11-23 16:24:21 System 127.0.0.1 localhost Re-launch process [proftpd]. 2011-11-23 16:23:37 System 127.0.0.1 localhost Re-launch process [rpc.mountd]. 2011-11-23 16:23:25 System 127.0.0.1 localhost Re-launch process [proftpd]. They seem to occur per minute but I am uncertain about whether or not they are relevant to this issue. The "Login failed" warning has also displayed in the system connection logs which tells me when and which user was unable to log in, as shown below: 2011-11-22 16:11:07 Administrator 192.168.0.xx computer-01 SAMBA --- Login Fail 2011-11-22 16:11:07 Administrator 192.168.0.xx computer-01 SAMBA --- Login Fail 2011-11-22 16:11:06 Administrator 192.168.0.xx computer-01 SAMBA --- Login Fail 2011-11-22 13:46:14 administrator 192.168.0.yy --- HTTP Administration Login Fail 2011-11-22 13:46:09 administrator 192.168.0.yy --- HTTP Administration Login Fail 2011-11-21 15:17:22 user 192.168.0.zz computer-02 SAMBA --- Login Fail 2011-11-21 15:17:18 user 192.168.0.zz computer-02 SAMBA --- Login Fail 2011-11-21 15:17:17 user 192.168.0.zz computer-02 SAMBA --- Login Fail I've researched this on Google and the QNAP forums and have not come up with a resolution as yet.

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• Windows 7 ReadyBoost - What File System To Use With Flash Card/Drive?

  - by Boris_yo

  NTFS, exFAT or FAT32? I know that FAT32 has a limit of 4GB transfer per file, but is it faster and better than NTFS or exFAT? Since Windows 7 by itself uses NTFS, it remains logical to format flash card/drive with NTFS file system, however will NTFS or even exFAT be fine for flash card/drive? P.S. In case i decide to use SD flash card, what should i do if it is already plugged in and i decide to use another SD flash card in order to transfer photos? What will happen if i take out suddenly ReadyBoost SD flash card?

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• Cisco 877 as PPPoA/PPPoE bridge (no routing) - how to make it listen to IP for management?

  - by Ingmar Hupp

  I have a Cisco 877 configured to bridge ADSL with PPPoA to PPPoE on Vlan1. This works fine, but in this mode the only way I can configure the Cisco is via the serial console. I'd like to have the Cisco also listen on an IP address so I can telnet/ssh into it. I think the right way to go about this would be via bridge irb, but I'm not sure exactly how (or if that's even the right direction). IOS is 12.4T and my current config (cut down to essentials) is: no ip routing no ip cef ! ! interface ATM0 no ip address no ip route-cache no atm ilmi-keepalive pvc 0/38 encapsulation aal5snap ! dsl operating-mode auto bridge-group 1 ! ! interface Vlan1 no ip address no ip route-cache bridge-group 1 Just setting an IP address on Vlan1 didn't have the desired effect, but surely this must be possible somehow (the Draytek Vigor 120 even does it by default).

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• Trying to find a duplicate version of PHP on my system. Where is it?

  - by macek

  I have having a helluva time trying to track down which php binary my apache is using. locate bin/php returns this list /usr/bin/php /usr/bin/php-cgi /usr/bin/php-config /usr/bin/phpize /usr/local/bin/php /usr/local/bin/php-cgi /usr/local/bin/php-config /usr/local/bin/php-shell.sh /usr/local/bin/phpize Let's see the versions: /usr/bin/php -v shows 5.3.2 /usr/bin/local/php -v shows 5.3.2 What about which? [macek ~]$ which php /usr/bin/php The problem phpinfo(); when executed by apache shows 5.2.11 Where is this phantom 5.2.11 on my system?

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• Unable to load type error in ASP.NET 4 application on Windows Server 2003 / IIS6 -- only happens after first worker process recycle

  - by Daniel Coffman

  I'm running an ASP.NET 4.0 web application on IIS6 (Windows Server 2003 x64). This app is one of many running on this server under the Default Web Site -- but is alone on it's own application pool because the other sites are all running ASP.NET 2.0 still. When I deploy my application, it works just fine until the application pool recycles or kills its worker process (by default 2 hours or 20 minutes with no activity). After this, I get the error: "Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information. System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information." Refreshing the page, recycling the application pool, and iisreset do nothing. But, I can bring the site back online again for a little while by simply redeploying it. The stack trace seems to start at an EntityDataSource -- see below: [ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.] System.Reflection.RuntimeModule.GetTypes(RuntimeModule module) +0 System.Reflection.Assembly.GetTypes() +144 System.Data.Metadata.Edm.ObjectItemConventionAssemblyLoader.LoadTypesFromAssembly() +45 System.Data.Metadata.Edm.ObjectItemAssemblyLoader.Load() +34 System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, ObjectItemLoadingSessionData loadingData) +130 System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, KnownAssembliesSet knownAssemblies, EdmItemCollection edmItemCollection, Action`1 logLoadMessage, Object& loaderCookie, Dictionary`2& typesInLoading, List`1& errors) +248 System.Data.Metadata.Edm.ObjectItemCollection.LoadAssemblyFromCache(ObjectItemCollection objectItemCollection, Assembly assembly, Boolean loadReferencedAssemblies, EdmItemCollection edmItemCollection, Action`1 logLoadMessage) +580 System.Data.Metadata.Edm.ObjectItemCollection.ExplicitLoadFromAssembly(Assembly assembly, EdmItemCollection edmItemCollection, Action`1 logLoadMessage) +193 System.Data.Metadata.Edm.MetadataWorkspace.ExplicitLoadFromAssembly(Assembly assembly, ObjectItemCollection collection, Action`1 logLoadMessage) +140 System.Web.UI.WebControls.EntityDataSourceView.ConstructContext() +756 System.Web.UI.WebControls.EntityDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +147 This is a bug filed for the same (or similar) problem: http://connect.microsoft.com/VisualStudio/feedback/details/541962/unable-to-load-one-or-more-of-the-requested-types-connected-with-entitydatasource Question: Has anyone seen this and have advice? I've tried copy-local on all the references... Works just fine on my dev machine. Works on the server until the application pool worker process recycles. I'm building in release mode, but experience the same result when I build for debug. I'm stumped.

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• How can I flush my ssh keys on power management activity?

  - by Sam Halicke

  Hi all, Using ssh-agent and private keys per the usual. Everything's working as normal. My question regards best practices on flushing keys from ssh-add on activity like sleep, suspend, hibernate, etc. I thought about writing a simple wrapper around those commands, but then wondered if are they even called? Or does the kernel initiate this activity directly? Are the PM utilities strictly userland? I would like this additional layer of security beyond locking my screen, etc. and was wondering if anyone else had solved this elegantly or has best practices to recommend. Thanks.

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• launchctl - use rvm instead of system Ruby in executed scripts?

  - by Stefan Kendall

  I have a launchctl job I define as such: <key>ProgramArguments</key> <array> <string>/bin/sh</string> <string>-c</string> <string>~/projects/script.sh</string> </array> When I run script.sh manually, the script works fine, as it uses the currently configured rvm version of ruby. When I run this through launchctl, the system version of Ruby is used, which breaks the script. How can I get this script to run with the right version of ruby available?

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• How do I log file system read/writes by filename in Linux?

  - by Casey

  I'm looking for a simple method that will log file system operations. It should display the name of the file being accessed or modified. I'm familiar with powertop, and it appears this works to an extent, in so much that it show the user files that were written to. Is there any other utilities that support this feature. Some of my findings: powertop: best for write access logging, but more focused on CPU activity iotop: shows real time disk access by process, but not file name lsof: shows the open files per process, but not real time file access iostat: shows the real time I/O performance of disk/arrays but does not indicate file or process

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• SQL 2008: How can i create policies in policy based management from tsql script?

  - by Manjot

  Hi, I have some T-sQL scripts which i want use to create policies in SQL 2008. But every documentation i found explains creating policies from in build facets. when I try to create a policy using these scripts, I get error "property expressionNode is not set". any help?

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• Is there an encrypted write-only file system for Linux?

  - by Grumbel

  I am searching for an encrypted filesystem for Linux that can be mounted in a write-only mode, by that I mean you should be able to mount it without supplying a password, yet still be able to write/append files, but neither should you be able to read the files you have written nor read the files already on the filesystem. Access to the files should only be given when the filesystem is mounted via the password. The purpose of this is to write log files or similar data that is only written, but never modified, without having the files themselves be exposed. File permissions don't help here as I want the data to be inaccessible even when the system is fully compromised. Does such a thing exist on Linux? Or if not, what would be the best alternative to create encrypted log files? My current workaround consists of simply piping the data through gpg --encrypt, which works, but is very cumbersome, as you can't easily get access to the filesystem as a whole, you have to pipe each file through gpg --decrypt manually.

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• Create a bootable .wim from Win 7 system image?

  - by Christian Nikkanen

  I was given an assigment to create a clean install of Windows 7, take a system image of it and make it a bootable image, so it can be booted from our local server. I've readed a few tutorials, but only one worked so far that it created a .wim . But when I transferred it to the server (Windows 2008 Server), navigated to Boot Images -- Add a new boot image But it says it's not bootable. So how would I create a .wim that is good for the server from a 64bit Windows? I have Windows AIK installed.

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• System will only boot into a Live CD with core disabled in BIOS and ACPI off.

  - by CookieOfFortune

  I have a system that was running a Q6600 and Windows 7 RC. It crashed last night into a BSOD with a MACHINE_CHECK_EXCEPTION. Now it does that every time it boots into Windows. I tried using my Ubuntu Live CD, but the kernel would error out, the stack trace showed something along the linse of "Can not synchronized to one of the CPUs". Working from this, I enabled the "Limit CPU to 3 cores" option in my BIOS and tried again. This time, it seemed to have died after an ACPI call, so I disabled that during the boot and now it is running from the Ubuntu Live CD, showing 2 cores. Does anyone here think I have any hope or is it simply a CPU waiting to die? EDIT: 1 core now.

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• Cobbler 2.2.2 problems

  - by Peter

  I have setup a dedicated LAN for Cobbler tests. My setup is: Cobbler server: openSUSE 12.3, cobbler 2.2.2 (from openSUSE repos) Imported distros: Centos 6.5, Red Hat 6.5, Red Hat 7.0, openSUSE 13.1 Target Machine: VMs in a Windows 7 Virtualbox Systems provisioning works OK, but I have some problems. The first one is that cobbler does not honor the "pxe_just_once: 1" setting. When the setup of the target OS is finished, after the reboot the target systems continues to PXE boot! The second problem is that the target server is not correctly configured! See my setup: cobbler system report --name=test Name : test TFTP Boot Files : {} Comment : Fetchable Files : {} Gateway : 192.168.0.1 Hostname : testcob1.example.com Image : IPv6 Autoconfiguration : False IPv6 Default Device : Kernel Options : {} Kernel Options (Post Install) : {} Kickstart : <<inherit>> Kickstart Metadata : {} LDAP Enabled : False LDAP Management Type : authconfig Management Classes : [] Management Parameters : <<inherit>> Monit Enabled : False Name Servers : ['192.168.0.1', '8.8.8.8'] Name Servers Search Path : [] Netboot Enabled : False Owners : ['admin'] Power Management Address : Power ID : Power Password : Power Management Type : ipmitool Power Username : Profile : RHEL-6.5-x86_64 Proxy : <<inherit>> Red Hat Management Key : <<inherit>> Red Hat Management Server : <<inherit>> Repos Enabled : False Server Override : <<inherit>> Status : testing Template Files : {} Virt Auto Boot : <<inherit>> Virt CPUs : <<inherit>> Virt Disk Driver Type : <<inherit>> Virt File Size(GB) : <<inherit>> Virt Path : <<inherit>> Virt RAM (MB) : <<inherit>> Virt Type : <<inherit>> Interface ===== : eth0 Bonding Opts : Bridge Opts : DHCP Tag : DNS Name : Master Interface : Interface Type : IP Address : 192.168.0.200 IPv6 Address : IPv6 Default Gateway : IPv6 MTU : IPv6 Secondaries : [] IPv6 Static Routes : [] MAC Address : Management Interface : True MTU : Subnet Mask : 255.255.255.0 Static : True Static Routes : [] Virt Bridge : So, although I have setup the hostname and the network interface of the target system, after the setup, the hostname is set to localhost.localdomain and eth0 is configured as a DHCP not static! How can I find the problem and fix it? Note that I have synced and restarted cobbler a couple of times, but the problems persists.

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• Is it possible to open an Active Director or Exchange Management Console user dialog directly from Powershell?

  - by Myrddin Emrys

  I'd like to be able to launch either the AD user dialog, or the EMC mailbox dialog directly from a Powershell script to open a specific user. The workflow goes something to the effect of "Does everything look correct on this user? Y/N" to continuing on, or to bringing up the account to edit. There's no reason to completely duplicate the functionality of these dialogs. I don't mind requiring that EMC or ADU&C already be open before the script is run, if necessary.

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• How do I properly dual boot Ubuntu and Windows 7 on an UEFI system?

  - by S. Robert James

  I have an HP Z210 with Windows 7, which is UEFI based. I'd like to dual boot it to Ubuntu 11.10 with GRUB2, but am having problems due to the UEFI. The install CD goes to the end, but then the machine always boots right into Windows. These problems are apparently documented (here and here), but there's no consensus as to what the simplest solution is. Any recommendations? I want Ubuntu and Windows to both be bootable. (Perhaps if I knew more about UEFI and its system partition, and how it differs from BIOS and MBR, I'd be in a better position. So background answers explaining how UEFI loads up are very appreciated.)

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• Asterisk doesn't start properly at system startup. DNS lookup fails.

  - by leiflundgren

  When I start my Ubuntu system it attempts two DNS lookups. One to find out what my internet-routers external ip is. And one to find the IP of my PSTN-SIP-provider. Both fails. [Apr 7 22:14:54] WARNING[1675] chan_sip.c: Invalid address for externhost keyword: sip.mydomain.com ... [Apr 7 22:14:54] WARNING[1675] acl.c: Unable to lookup 'sip.myprovider.com' And since the DNS fails it cannot register properly a cannot make outgoing or incoming calls. If I later, after bootup, restart asterisk everything works excelent. Any idea how I should setup things so that either: Delay Asterisk startup so that DNS is up and healthy first. Somehow get Asterisk to re-try the DNS thing later. Regards Leif

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• What are steps to upgrade an cisco UCS B series system vmware vsphere from 4.1 to 5.0

  - by Gk.

  I have a Cisco UCS B-series system with 1.4 firmware running vsphere 4.1 (ESX) + Nexus 1000V. I want upgrade all that stuff to vsphere 5.0 without downtime. I tried to find any documentation describe all steps needed to do it, but cannot found anything clear. Here is my plan: Upgrade firmware of UCS from 1.4 to 2.0. Doc: http://www.cisco.com/en/US/docs/unified_computing/ucs/sw/upgrading/from1.4/to2.0/b_UpgradingCiscoUCSFrom1.4To2.0.html Upgrade all vcenter, hosts+VEM, virtual machines, datastores using VMWare best practice. Is it OK? Am I missing something? Thank you, giobuon.

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• Asterisk doesn't start properly at system startup. DNS lookup fails.

  - by leiflundgren

  When I start my Ubuntu system it attempts two DNS lookups. One to find out what my internet-routers external ip is. And one to find the IP of my PSTN-SIP-provider. Both fails. [Apr 7 22:14:54] WARNING[1675] chan_sip.c: Invalid address for externhost keyword: sip.mydomain.com ... [Apr 7 22:14:54] WARNING[1675] acl.c: Unable to lookup 'sip.myprovider.com' And since the DNS fails it cannot register properly a cannot make outgoing or incoming calls. If I later, after bootup, restart asterisk everything works excelent. Any idea how I should setup things so that either: Delay Asterisk startup so that DNS is up and healthy first. Somehow get Asterisk to re-try the DNS thing later. Regards Leif

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• Why can't I install Ubuntu 10.04 on a system that already has Ubuntu 8.04?

  - by Android Eve

  Ubuntu 10.04 is beautiful. I love it. I am dying to install it on my PC, alongside the existing Ubuntu 8.04 (from which I write this message right now). But... it won't let me! When I reach the partitioning stage (manual!) Ubuntu 10.04 sees my two HDDs as one RAID volume. It doesn't see all the partitions I already have in place in /dev/sda and /dev/sdb. Even Windows 7 doesn't behave like this... (yes, I actually managed to install Windows 7 64-bit in dual-boot configuration with Ubuntu 8.04 on this same system). Note: GParted on Ubuntu 10.04 (live CD) sees the partition intended for Ubuntu 10.04 (/dev/sda4) perfectly, but is unable to format it. Any idea how to solve this problem?

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• Material to use for computer system cover against UV and salty air?

  - by hippietrail

  I live right next to the sea and have a large window quite close to my computer setup which allows a lot of indirect sunlight to enter. I'd like to buy or make a cover for my computer system. From visiting my usual mom & pop computer shop yesterday I got the impression these might not really exist any more. If I make my own I need a material with these qualities: Block or reduce ultraviolet light which can depolymerize plastics (the sun here in Australia is much stronger than in the northern hemisphere). Block salt-laden sea air which can oxidize USB and other connectors. Not cause static electricity when covering or uncovering. Keep dust off of course (-: My setup is a laptop plugged into a wide-screen LCD with a few external drives. So I think I'd want a largish sheet to flop over the whole desk. Are such covers commonly sold these days? What material(s) should I look for which provides the listed attributes?

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• Simple, centralized user management on a small LAN - NIS or LDAP?

  - by einpoklum

  I'm setting up a small LAN for my team. It will, for all intents and purposes, not be connected to any external networks. I would it to have centralized control of user accounts (at least, I think I'd like that; I'm also considering using puppet, so theoretically I could just push /etc/passwd changes, or something). The number of machines is fixed, but not very small. Mostly they're 'attached' to a single user, but sometimes people work remotely on someone else's box; and there are a couple of servers. I've read this question, but my scenario is much simpler (even simpler than in this question) and I'd like to do something (relatively) quick, with not much hassle, but not a dirty totally-insecure hack. Is NIS relevant for my scenario? If not, what's the most hassle-free way to set up LDAP (or LDAP+Kerberos) to achieve the same? Notes: I have no experience with setting up either NIS or LDAP. We use Debian-flavored Linux distributions, mainly Kubuntu 12.04 (not my choice, but that's the way it is).

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• How can I mount an image from an external HDD to a partition within the host system?

  - by HardwareMuch

  I'm currently using Acronis True Image Home 2010 and I have created an image of my Windows 7 OS. I copied it to my external HDD and I repartitioned my other PC's HDD. The primary partition houses the Windows Xp system which also has Acronis installed. The new partition is logical. Whenever I try to go through the steps on "Clone Disk" the program would not let me select a destination drive if I choose the external HDD as the source. I also did not know that it you can only select disks instead of partitions as a source or destination. Any suggestions would be greatly appreciated. Thanks.

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• Any examples of a complex, changeable system modelled with a spreadsheet?

  - by andygrunt

  When I asked this question using games as the example (hoping it would be more likely to have been done), it was closed as being off topic so let me ask it this way... Has anyone used a spreadsheet to model a complex, changeable system (something like crowd behaviour, weather systems, a closed ecology, evolution or whatever) and if so, can you point me at it? I'm hoping for a normal (albeit complex) spreadsheet using the spready's inbuilt formulae and functions rather than something specially coded. I'm also after something where it's possible to change the variables and see the changed outcome - perhaps the variables change using random numbers or the like.

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