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• Connecting multiple access points

  - by mohsen farahanipoor

  I'm working on a big project. We want to create a wireless network throughout the building with 15 floors. My idea is that we should set up one unified wireless access point at least in each floor...in case of signal attenuate, we use Access point extender/repeater. I selected DWL-6600AP from among D-Link industrial access points. I want to implement a single wireless LAN throughout the building. Is it possible to combines multiple DWL-6600 access points to achieving just a single WLAN? Can a wireless switch controller do this task? Can these Access Points interfere with each other? What is the solution? I read D-Link website's learning materials, but I am still confused. My other question is around the connecting these APs to Wireless Switch Controller - Is it possible to use power line for connecting DWL-6600 to Wireless Switch Controller device? My main goal is that clients with portable devices such as laptops should be easily connected to the network to share & have communication without any more manual configuration as they are already connected to a single network.

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• Ubuntu 10.10: 2nd instance of Firefox does not obey GTK2 customizations

  - by Cocoro Cara

  Hi On Ubuntu 10.10 I started a 2nd instance of Firefox using the command: $ firefox -ProfileManager -no-remote & Created a new profile and everything works smoothly except for the fact that this instance of FF does not obey by GTK2 customizations that I have placed in ~/.gtkrc-2.0 Moreover, only SOME of the customizations are not obeyed. For example, the vertical scrollbars are supposed to be on the left, but they are on the right. The scrollbar arrows are together (Mac-like) as specified, so is the scrollbar width. The first instance obeys all customizations with scrollbars on the left. Any ideas?

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• Highlighting duplicate column-pair and counting the rows Excel

  - by pleasehelpme

  Given the data below, the column-pair with the same values for at least 4 consecutive rows should be highlighted. image here for better visualization: http://i49.tinypic.com/2jeshtt.jpg 2 2 3 4 3 4 3 4 3 4 2 3 1 2 2 2 3 3 3 3 3 3 3 3 2 3 2 3 2 3 2 3 2 2 3 4 3 4 3 4 3 4 3 4 The output should be something like this, where the column-pair values that are the same for at least 4 consecutive rows are highlighted. image here for better visualization: http://i48.tinypic.com/i2lzc8.jpg 2 2 3 4 3 4 3 4 3 4 2 3 1 2 2 2 3 3 3 3 3 3 3 3 2 3 2 3 2 3 2 3 2 2 3 4 3 4 3 4 3 4 3 4 Then, I need to know the number of instances of the N-consecutive equal column-pair. Considering the data above, N=4 should be 3 and N=5 should be 1, where N is the number of rows that the column-pair is consecutively equal.

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• Splitting Company into two separate companies with duplicate IT infrastructure. Need Reccomendation

  - by Shanghai360

  We are dividing our company into two companies. All employees will be shared across both the companies. We have separate Accounting systems, email and other applications for both companies. There are two physical offices located within the same city block. And identical infrastructure at both. Money is not a limiting factor. How would you design the network, remote access, and configure the workstations? Thanks!

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• how to remotely open an URL in Firefox in a specific profile?

  - by miernik

  I have several instances of Firefox with several different profiles running. Among them profiles with the names "software" and "test". I am trying to open an URL from a bash script to have it open in profile "test", like this: firefox -P "test" http://www.example.org/ However that opens it in profile "software" anyway. Any ideas? Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100308 Iceweasel/3.5.8 (like Firefox/3.5.8) No, it is not a permissions problem, all my profile directories are perfectly under my permissions: root@przehyba:~/.mozilla# ls -ld firefox/ drwx------ 13 miernik miernik 4096 Mar 11 09:15 firefox/ root@przehyba:~/.mozilla# ls -ld firefox/* drwxr-xr-x 9 miernik miernik 4096 Mar 12 11:29 firefox/info -rw-r--r-- 1 miernik miernik 560 Mar 11 09:15 firefox/profiles.ini drwxr-xr-x 10 miernik miernik 4096 Mar 16 11:51 firefox/software drwxr-xr-x 9 miernik miernik 4096 Mar 11 09:14 firefox/tech drwxr-xr-x 11 miernik miernik 4096 Mar 15 22:48 firefox/test root@przehyba:~/.mozilla#

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• how to remotely open an URL in Firefox in a specific profile?

  - by miernik

  I have several instances of Firefox with several different profiles running. Among them profiles with the names "software" and "test". I am trying to open an URL from a bash script to have it open in profile "test", like this: firefox -P "test" http://www.example.org/ However that opens it in profile "software" anyway. Any ideas? Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.8) Gecko/20100308 Iceweasel/3.5.8 (like Firefox/3.5.8)

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• Using the same Windows 8 Upgrade installer on multiple PCs

  - by Karan

  As per this article: You may transfer the software to another computer that belongs to you. … You may not transfer the software to share licenses between computers. But what if I have a bunch of PCs with a mix of XP/Vista/Windows 7? Can I purchase either the Windows 8 Pro Upgrade $40 (download only) or $70 (DVD) version (both of which come without a key) only once and use it to upgrade all the PCs? Since I'm not sharing the license and each PC has its own valid genuine license, it should be allowed, right, or is it illegal? Even if they want people to shell out $40/$70 for each PC, how would they enforce the use of the installer/media on only one PC each? EDIT: I have been given to believe by a source that the installer will only check for the previous OS' key, which is what is confusing me (I have never purchased an upgrade version before this, only full retail or pre-installed versions). Is this true or will I need to enter two keys to make the upgrade work, one for the previous version and then one for Windows 8? If the latter is the case, then the issue is solved since obviously the same Windows 8 key will not be valid for multiple PCs.

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• What type of amazon instance should I use and do I need auto scaling and load balancing?

  - by Navetz

  Hi I am looking to release a website that will initially have large amounts of uploads from users. The first will be 65GB and the rest will probably be close to 1TB. They could happen simultaneously. My question is what type of amazon server instance would be best for this? The website is just being released so the traffic wont be very high. I have been using a micro instance for development but it is time to launch and I need more power. Should I use auto scaling and a load balancer to increase the number of instances when I need it or Will a small or medium instance do the trick? If I do use auto scaling and load balancing how do I handle things like sessions and the database/file lookups? Does one instance become the primary instance and the rest become clones?

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• [Nameservers] Can I setup 5 ips to 1 server and have only 2 nameservers?

  - by Tyler

  So I have 1 computer with 5 IP's and around 15 sites being hosted. I have 4 of the ips setup to be dedicated for 4 sites and the rest share the 5th ip. When I'm setting up my name server, do I set it up at Godaddy my Registar or on my server's dns or both? Can I just setup NS1 - Add all the ips NS2 - Add all the ips And just have all the sites use those two name servers?

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• Capture the active window to jpg using C# ?

  - by user29004

  Hello, I am creating a Windows Application that capture the all users session details. I want to track that how many users are connected with my machine using RDP session. Want to log all their activity with screen shot. So I would like to know how can I capture the active screen. I tried 'RUNAS' but its show me current screen shot where I run. I am able to use user's application data but not get Actual screen. I also tried LogonUser, CreateProcessAsUser but not getting actual point. So please let me know how can I do it ? I used 'cassia' google library to list all the current logged user. Thanks Laxmilal

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• Combine multiple rows into one

  - by Jim

  I am trying to combine multiple rows of data into one. Column A contains the value on which the groupings will be based -- rows whose Column A values match will be combined into one row. My range extends from column A through X so I need a matching row of data to start in column Y. Example: +--------------+ ¦ 1001 ¦ A ¦ C ¦ ¦ 1001 ¦ B ¦ D ¦ ¦ 1002 ¦ A ¦ E ¦ ¦ 1002 ¦ B ¦ F ¦ ¦ 1002 ¦ C ¦ G ¦ +--------------+ Desired Result: +------------------------------+ ¦ 1001 ¦ A ¦ C ¦ B ¦ D ¦ ¦ ¦ ¦ 1002 ¦ A ¦ E ¦ B ¦ F ¦ C ¦ G ¦ +------------------------------+ The VBA code I am currently using is not taking the entire contents of the matched row. It is only taking the data in the 2nd column and moving it up. VBA Code: Sub Mergeitems() Dim cl As Range Dim rw As Range Set rw = ActiveCell Do While rw <> "" ' for each row in data set ' find first empty cell on row Set cl = rw.Offset(0, 1) Do While cl <> "" Set cl = cl.Offset(0, 1) Loop ' if next row needs to be processed... Do While rw = rw.Offset(1, 0) cl = rw.Offset(1, 1) ' move the data Set cl = cl.Offset(0, 1) ' update pointer to next blank cell rw.Offset(1, 0).EntireRow.Delete xlShiftUp ' delete old data Loop ' next row Set rw = rw.Offset(1, 0) Loop End Sub

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• Is it possible to route *.example.com to a single machine without registering extra domains?

  - by oligofren

  I would like to achieve something similar to what wordpress.com does - giving each user its own subdomain. user1.wordpress.com would in the VirtualHosts setup of Apache would have its DocRoot at /user/user1, for instance. Now, our hosting service provider takes a fee for creating a domain, and in our case this would mean a ridiculous number of domains with a matching price. After some googling on DNS I came over a description of a DNAME record. That seems to fit the bill precisely. Any reason why my service provider would not do this, or why I should not do this?

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• Cascading KVM switches

  - by einpoklum

  I have a not-so-small number of computers (say, 5) which I want to access with a single keyboard, USB and monitor. I can get an 8-port KVM switch, which is a pretty expensive piece of hardware; however, in theory, I should be able to cascade KVM switches: Have one 4-port KVM switch between 2 other KVMs (a 2-port and a 4-port). Is this doable (with typical off-the-shelf switches and cables)? Has anyone had experience doing this? Note: I'm interested in USB-only for the keyboard and mouse, and either VGA or DVI for the display. Audio and PS/2 connections are irrelevant for me..

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• Deploying multiple identical copies of a virtual machine for compute tasks

  - by Reid

  I have a compute task which has a large number of library dependencies. I would like to deploy it on some of my company's large Linux clusters, where I do not have root. I could probably track down, compile, and install the right versions of all the libraries, but this looks to be quite tedious and would have to be repeated if I deployed it again somewhere else. On the other hand, it's pretty easy to install on current Ubuntu. This led me to wonder about a virtual machine approach. Could I put together a virtual machine which booted up, ran the computation (with parameters from and results to the host), and then shut down? In other words, I'd like a command like this that I could run on the host: $ ./run-vm --ram N --task /path/on/host/foo.sh --results /another/host/dir/ This would boot the VM, run foo.sh, and put the (relatively small) results of the computation in /another/host/dir/. It's important to start up many instances of the VM simultaneously, both on a single node and multiple nodes of the cluster. So it would be nice if I didn't have to make many copies of the VM virtual disk and metadata. As the task instances are completely independent, the VMs would not need any network support once deployed, or any outside communications beyond reading and writing the host filesystem. Is this possible, and if so, how might I go about doing it? Are there assumptions I've made above which are bogus?

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• finding files that match a precise size: a multiple of 4096 bytes

  - by doub1ejack

  I have several drupal sites running on my local machine with WAMP installed (apache 2.2.17, php 5.3.4, and mysql 5.1.53). Whenever I try to visit the administrative page, the php process seems to die. From apache_error.log: [Fri Nov 09 10:43:26 2012] [notice] Parent: child process exited with status 255 -- Restarting. [Fri Nov 09 10:43:26 2012] [notice] Apache/2.2.17 (Win32) PHP/5.3.4 configured -- resuming normal operations [Fri Nov 09 10:43:26 2012] [notice] Server built: Oct 24 2010 13:33:15 [Fri Nov 09 10:43:26 2012] [notice] Parent: Created child process 9924 [Fri Nov 09 10:43:26 2012] [notice] Child 9924: Child process is running [Fri Nov 09 10:43:26 2012] [notice] Child 9924: Acquired the start mutex. [Fri Nov 09 10:43:26 2012] [notice] Child 9924: Starting 64 worker threads. [Fri Nov 09 10:43:26 2012] [notice] Child 9924: Starting thread to listen on port 80. Some research has led me to a php bug report on the '4096 byte bug'. I would like to see if I have any files whose filesize is a multiple of 4096 bytes, but I don't know how to do that. I have gitBash installed and can use most of the typical linux tools through that (find, grep, etc), but I'm not familiar enough with linux to figure it out on my own. Little help?

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• Sending same email through two different accounts on different domains using Outlook 2010

  - by bot

  I am a programmer and don't have experience in Outlook configurations. Our company has two email domains namely xyz.com and xyz.biz. Each employee has an email id on one of these domains but not both depending on the project they are working on. The problem we are facing is that when a communication email is sent from the Accounts, HR, Admin, etc departments, they need to send the email twice. Once through the xyz.com account to all employees with an email address on xyz.com and once through xyz.biz to all employees with an email address on xyz.biz. I am not sure why they have to send two separate emails but the IT team has directed all departments to do so as there is no other solution according to them. Even though two different groups have been created, sending an email to employees in a group of xyz.biz from xyz.com does not seem to work. I want to know if Outlook provides a feature such that we can configure some kind of rules to send an email through an id on xyz.com to all users on xyz.com and the same email gets sent automatically to users on xyz.biz through an id on xyz.biz. The only technical details I know is that we are using Exchange 2003 and the IT team claims that this is a limitation causing the problem. Edit: Our company is split into two main divisions depending on the type of projects. I am pretty sure I use domain XYZ wheras the employees in the other division use the doman ABC to log in into the windows machine or outlook itself. Also, employees in domain XYZ can access the machines on the network in domain ABC but not the other way around

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• VMWare vSphere 5: 4 pNICs for iSCSI vs. 2 pNICs

  - by gravyface

  New SAN for me, never used before: it's an IBM DS3512, dual controller with a quad 1GbE NIC per controller that a client bought and needs help setting up. Hosts (x2) have 8 pNICs and while I usually reserve 2 pNICs for iSCSI per host (and 2 for VM, 2 for management, 2 for vMotion, staggered across adapters), these extra ports on the SAN have me wondering if storage I/O would be significantly improved with 2 additional NICs per host, or if the limitations of the vmkernel/initiator would prevent the additional multipaths from ever being realized. I'm not seeing alot of 4 pNIC iSCSI implementations per host; 2 is the de facto standard from what I've read/seen online. I could and probably will do some I/O testing, but just wondering if there's a "wall" that someone else has discovered long ago (i.e. before 10GbE) that makes a 4 NIC iSCSI per host setup somewhat pointless. Just to clarify: I'm not looking for a how-to, but an explanation (link to paper, VMWare recommendation, benchmark, etc.) as to why 2-NIC configurations are the norm vs. 4-NIC iSCSI configurations. i.e. storage vendor limitations, VMKernel/initiator limitations, etc.

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• Multiple copies off the same printer on Windows 7 from PrintUIEntry

  - by Kev

  I currently have a number of bat files which work perfectly fine on Windows XP which install the same printer multiple times with a number of finisher options set - e.g. after running the bat file below I would end up with four printers in the printer drop down called Sharp Kits Printer - A4 Single Sided Sharp Kits Printer - A4 Single Sided Stapled Sharp Kits Printer - A4 Duplex Stapled Sharp Kits Printer - A4 Duplex which all have there options configured in the relevant way. I have amended on Windows 7 to point to correct INF file and printer name in the INF files - a single printer installs fine. However when I run the complete batch file only the first printer in it is installed - occassionally the later ones flash up in the GUI but then vanish when you press F5 and are still missing after a reboot. SET QUEUENAME=http://192.168.7.123:631/printers/Sharp700 SET PPD=J:\DRIVERS\Printers\MX700-Win7-64\SJ1JWENG.INF SET PPDENTRYNAME=SHARP MX-M700U PPD J: cd "\DRIVERS\Printers\MX700-Win7-64" SET NICENAME="Sharp Kits Printer - A4 Single Sided" SET PREFS="J:\SCRIPTS\Printers-Win7-64bit\Sharp_SINGLE_SETTINGS.dat" %SYSTEMDRIVE%\WINDOWS\system32\rundll32.exe %SYSTEMDRIVE%\WINDOWS\system32\printui.dll,PrintUIEntry /w /b %NICENAME% /x /n "part of the n switch" /f "%PPD%" /if /r "%QUEUENAME%" /m "%PPDENTRYNAME%" rem restore settings go here... SET NICENAME="Sharp Kits Printer - A4 Duplex" SET PREFS="J:\SCRIPTS\Printers\Sharp_DUPLEX_SETTINGS.dat" %SYSTEMDRIVE%\WINDOWS\system32\rundll32.exe %SYSTEMDRIVE%\WINDOWS\system32\printui.dll,PrintUIEntry /w /b %NICENAME% /x /n "part of the n switch" /f "%PPD%" /if /r "%QUEUENAME%" /m "%PPDENTRYNAME%" rem restore settings go here... I have tried adding the "/u" paramater to the end, I have changed the "/n" paramater to be different (e.g. n1, n2,n3 etc) - both of these result in the same. I have also tried to change the port (/r) to have "_1" (etc) on the end like the GUI would but this errors as the port doesn't exist. Is it possible to do this on Windows 7, and if so how?

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• How to "drag and drop" folders or multiple HTML files into a browser and have them open in multiple tabs

  - by PoorLuzer

  I save pages that I browse on the net and find interesting into a folder called C:\PageSaves Later, during the commute, I open these pages to see what they are and move them into a neatly categorized folder tree. For example, Perl related pages goto C:\Pages\Perl, MySQL related pages goto C:\Pages\MySQL and so on. I was wondering if there is any way I could open any number of HTML files on disc / inside a folder (C:\PageSaves in my case) into Mozilla/FF/K-Meleon etc For example, I would like to just "drag and drop" the folder C:\PageSaves into FireFox and have it open all the .html pages in the folder in a separate tab Right now, if I "drag and drop" multiple HTML files, it just opens the last file in the selection. Have a set of toolbar buttons, basically, a (the) plugin that should allow me to nuke the page (if I don't want to keep the page anymore) from disc or move the file (and its corresponding folder) into a predefined / new folder I am familiar with coding full blown FireFox plugins, so even if something very basic/almost similar exists, I can take it forward. Hints/clues/other methods of achieving the same result are all welcome!

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• Have a set a cgi scripts shared by multiple domains

  - by rpat

  Goal: Have multiple domains share a set of cgi(perl) scripts Environment: Apache 2.0 on a dedicated Cent OS server. (Apache configuration files generated by cPanel) I have dozens of domains on the dedicated server. The domains set up by cPanel under VirtualHost section. I have almost no knowledge of Apache. Most of what I do is taken care of by cPanel. I would like to put a set of scripts under one directory (perhaps under / or /opt ) and for each of the domains, under the individual cgi-bin, I would like to create a symbolic link to this common directory. This way I am hoping to avoid having to keep a copy of scripts for every domain. Since Apache config files are generated by cPanel, I would not like to manually make changes to those. Beside, I could mess things up. I see that cPanel recommends use of include files rather than changing the httpd.conf Perhaps I need to have the following of symbolic links enabled in the cgi-bin directory and allow the web server user execute the scripts not owned by it. May be I am making things more complicated than they are. I would be glad to use any other means to achieve my goal. Thanks in advance for your help. *I asked this on stackoverflow and some one suggested that I could ask this on serverfault.

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• Splitting an HTTP request into multiple byte-range requests

  - by redpola

  I have arrived at the unusual situation of having two completely independent Internet connections to my home. This has the advantage of redundancy etc but the drawback that both connections max out at about 6Mb/s. So one individual outbound http request is directed by my "intelligent gateway" (TP-LINK ER6120) out over one or the other connection for its lifetime. This works fine over complex web pages and utilises both external connects fine. However, single-http-request downloads are limited to the maximum rate of one of the two connections. So I'm thinking, surely I can setup some kind of proxy server to direct all my http requests to. For each incoming http request, the proxy server will issue multiple byte-range requests for the desired data and manage the reassembly and delivery of that data to the client's request. I can see this has some overhead, and also some edge cases where there will be blocking problems waiting for data. I also imagine webmasters of single-servers would rather I didn't hit them with 8 byte-range requests instead of one request. How can I achieve this http request deconstruct/reconstruction? Or am I just barking mad?

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• How can use mod_rewrite to redirect a multiple specific URLs containing multiple query strings?

  - by Derek

  Hi there folks, we recently migrated a site from a custom CMS to drupal. In an effort to preserve some links that our users bookmarked (we have about 120 redirects) we would like to forward the original URLs to a new URL. I have been searching for a couple days, but can't seem to find anything simple to what I need. We have existing URLS that contain one or more query strings, for example: /article.php?issue_id=12&article_id=275 and we would like to forward to the new location: http://foobar.edu/content/super-happy-fun-article I started using: RewriteEngine On RewriteRule ^/article\.php?issue_id=12&article_id=275$ http://foobar.edu/content/super-happy-fun-article [R=301,L] This, however, does not work. A simple RewriteRule works: RewriteRule ^test\.php$ index.php It is unclear to me how I need to use {QUERY_STRING} with multiple Basically it's 120 simple redirects that go from one existing URL to a new one. I don't need ranges [0-9], because there is no sequential order to existing URLs. Perhaps I can do what I need with RewriteMap and a simple text file that contains a line like this: index.php?issue_id=12&articleType_section=0&articleType_id=65 http://foobar.edu/category/fall-2008 If anyone has any idea on using mod_rewrite to accomplish this or if there is a better, or more simple mod, I am open to that as well. Thanks!

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• How do I move an Amazon micro instance to a small instance?

  - by Navetz

  I want to move my instance to a micro instance to a small instance but when I try to launch a new AMI based on my Micro instance AMI it only gives me the option for 64 bit instances. My initial ami is based off an ubuntu 10.04 image. Is it not possible to move between 64 bit and 32 bit instance? Would it be possible to use a load balancer to have a 32bit instance and a 64bit instance work together? I have a website/web app that I will be uploading huge volumes of data to. I will be starting with 65gigs of images and then moving up to 100+ gigs of images. I am not sure which instance type would be best for this. I was going to use a load balancer and auto scaling to increase the number of instance when the load is high. Also when using a load balancer, does one of the AMI instance become the primary image and the rest act as clones of it?

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• IIS6 can't find site on local network

  - by chezy525

  I have a windows 2003 server with dual NICs running IIS6. I can access everything remotely, but the internal network can't seem to find the site regardless of which IP Address I try to go to. There are really several weird things that are happening here, but I'm going to limit this question to what I'm guessing to be the simplest problem (the solution to which I'm hoping solves other things as well): From the server itself, I can access the webpage using the primary IP address (i.e. http://192.168.1.2/index.htm), but not using the secondary IP address (i.e. http://10.10.10.2/index.htm). Self pinging both IP addresses works, and the "Web site identification" in IIS has the IP address set to "(All Unassigned)"... which I believe should bind both IP addresses to this site. I apologize if I'm not providing enough details about my setup, but at this point I don't even know what's relevant...

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• Setting up a copy of a site with IIS 7?

  - by SJaguar13

  I have a site running on IIS with a dyndns.org domain that points to the IP of the Windows 2008 machine hosting it. I need a copy of that site for development purposes. I set up another folder with all the files, and create a new site in IIS. I don't really have a domain for it, so I was just going to use the IP address. When I go to localhost, 127.0.0.1, or the internal IP, I get bad hostname. If I use the IP address on port 80 (the same as the real version of the site), I get 404 not found. If I use a different port so I don't have them both on the same IP with the same port, I get connection timed out. How do I go about setting this up?

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