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• Joomla 1.6 site cannot add a new extension through admin interface

  - by Ghlouw

  I'm having a very frustrating problem with my Joomla 1.6 site. I cannot add any new extensions through the admin interface. I have tried to upload the extension, or to use the search folder option or even the direct link. Neither of these options work, and all that happens is that the page tries to load forever until it finally timesout with a blank white page (no further error messages). I have tried this with multiple browsers (Chrome,FF,IE) and I have tried it with different extensions (modules, components, templates - all the same result). So I don't think it has anything to do with what I am uploading, but more likely the problem is something with the post action. I have also seen the exact same error occur when I try to update menu items or even create new menu items. I am not getting this error with a duplicate of the site in the dev environment, but only get this on my shared web hosting live server. This is on a Windows IIS / PHP / mySQL environment. Any help would be much appreciated!

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• Not able to safely remove external disk after having mounted and unmounted a VHD on it

  - by Agnel Kurian

  I am using Windows 7 SP 1. I have an external hard disk (Seagate 500GB) which I am able to use without problems most of the time. I am able to plug it in, use it and then safely unmount it via the "Eject USB Mass Storage Device" option in the taskbar tray. However, if I attach a VHD file located on this disk using "Disk Management", then detach the VHD and finally try to safely disconnect the disk via the system tray, I get an error which says: "Problem Ejecting USB Mass Storage Device: Windows can't stop your 'Generic volume' device because a program is still using it. Close any programs that might be using the device, and then try again later." How do I avoid this problem? Which process could still be accessing the device (even after I have closed the "Disk Management" application) ?

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• Using SQL Server profiler from 2008 against R2 database

  - by Chris Lively

  On my dev machine I have the management studio tools installed from SQL Server 2008. However, one of the sql server boxes I need to profile against is running R2. Because of this, when I start the profiler and connect to that server all of the templates are gone. If I go to Edit the templates, the R2 server type isn't available as an option. Do I have to upgrade my local toolset to R2 or is there some other way around this? Note, that if I create a template and save it the next time I connect to the server that saved template isn't available.

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• Is it viable to make a port from a C++ application to Java through LLVM

  - by Javier Mr

  how viable is it to port a C++ application to Java bytecode using LLVM (I guess LLJVM)? The thing is that we currently have a process written in C++ but a new client has made mandatory to been able to run the program in a multiplatform way, using the Java Virtual Machine with obviously no native code (no JNI). The idea is to be able to take the generated jar and copy then to different systems (Linux, Win, 32 bits - 64 bits) and it should just work. Looking around looks like it is possible to compile C++ to LLVM IR code and then that code to java bytecode. There is no need of the generated code to be readable. I have test a bit with similar things using emscripten, this takes C++ code and compile it to JavaScript. The result is valid JS but totally unreadable (looks like assambler). Does anybody done a port of an application from C++ to Java bytecode using this tecnique? What problems could we face? Is a valid approach for production code? Note: I am aware that currently we have some non standard C++ and close source libraries, we are looking to removing this non standard code and all close source libraries and use Free Libre Open Source Software, so lets suppose all code is standard C++ code with all code available at compile time. Note: It is not an option to write portable C++ code and then compile it to the desired target platform, the compiled program must be mltiplatform thus the use of JVM (right now we are not looking in similar solutions but Python or other language base, but i would also like to heard about it)

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• Dial-in VPN Routing issue when on 192.168.x.x network range

  - by Ian

  I'm not an expert on networks but have a small office on the 192.168.x.x. range which is managed by a vigor (2800) router. I have enabled the VPN dial-in option on the router so I can get to the server on 192.168.1.100 which works fine from my macbook when i'm NOT on a local network with that is on the 192.168.x.x range. e.g. works fine when I tether over my Android smartphone but when I try & connect when on my home network, it connects, I can access the router (192.168.1.1) but cannot access 192.168.1.100 - traceroute doesn't hop via 192.168.1.1 I have enabled "send all traffic over VPN connection but again, not joy... Feels like the osx platform isn't routing the traffic out to the vpn endpoint as the destination address is on the local subnet but expect it would be. This work fine on a windows PC on the same home network. Any thoughts on what the issue could be?

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• IIS7 folder permissions

  - by Eanna

  I build a basic WCF service that I now want to host in IIS7 under Windows Server 2008 R2. I added the service as an application under the default web site but whenever i try to run the application I get the following error: HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. Config Error - Cannot read configuration file due to insufficient permissions The only way I can get this service working is if i choose to "connect as" the server Administrator when adding the service. the "application user (pass-through authentication)" option does not seem to work. Could anyone help me out, I've just started using IIS7 and have no idea what to do... Thanks

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• Install newer version of GCC in Knoppix

  - by Z boson

  I have Knoppix 7.30 installed on a USB with a persistent file. It comes with GCC 4.7.2. I would like to install GCC 4.9.x or 4.8.x. Being that Knopppix is based on Debian I would normally do something like apt-get upgrade But as far as I understand it's not recommended to do this with Knoppix. Warning: apt-get upgrade is a BAD IDEA. It will, quite probably, render your KNOPPIX remaster unbootable, or broken in some way. A far safer method is to only upgrade packages as necessary. I can say from experience that that is the cse. So how should I go about installing GCC 4.9? Another option would be to "remaster" knoppix to use GCC 4.9 by default rather than install it with a persistent file. I would be happy with either solution.

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• Is Sql Azure useful without windows azure?

  - by KallDrexx

  I am currently doing some research to get some preliminary IT cost projections for a project, and I was looking at Azure. Since this is a startup, I do not want to deal with the IT operations myself and instead am looking at having it all professionally hosted. I am looking at azure due to the SLA assurances, already in place disaster recovery operations, and the reliability. I'm playing with some numbers, and I am wondering if hosting my database on Sql Azure is an option, while hosting the actual webpage on another host until I need the frontend scalability of Azure. Is this actually feasible or will the latency in requests between the web host and azure be too much and I would be better off hosting both on the same service?

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• PHP Runs Very Slow on IIS7. Need Help optimizing our config

  - by Kendor

  Am running a PHP based web app on our Windows 2008 cloud-based server. The app, which runs fine outside of our environment (e.g. a different IIS server), but is VERY slow in our environment. Based on googling this is a relatively common situation. I installed PHP and MySQL via the IIS web deployment method... Here's our setup: Windows 2008 Server Enterprise SP2 (32-bit) Microsoft-IIS/7.0 MySQL client version: mysqlnd 5.0.8-dev - 20102224 $Revision: 321634 $ PHP extension: mysqli Update for IIS 7.0 FastCGI Windows Cache Extension 1.1 for PHP 5.3 I had read elsewhere that ipv6 might be an issue, so I turned this off on the network adapter. The app is using: localhost as its connection Be easy on me, as I'm a bit green about some of these components... Also, rewriting the PHP app or modifying it is NOT an option. I'm reasonably SURE that our config is the issue.

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• Help with OpenVPN setup on Windows Server 2003

  - by Bill Johnson

  Hi all, Just wondering if someone can assist me further with the set-up of OpenVPN on my Windows Server 2003. I have configured Win Server as per the following guide: http://tinyurl.com/kxusv and I'm now at the stage of Creating the config files. I have a few questions that I need some assistance with. My server IP is 192.168.1.10 and my routers IP address is 192.168.1.1 (the router is a Netgear DGN2000). I have edited the server.ovpn file as per the following: push "dhcp-option DNS X.X.X.X" # Replace the Xs with the IP address of the DNS for your home network (usually your ISP's DNS) push "dhcp-option DNS X.X.X.X" # A second DNS server if you have one to include my ISP DNS and I have not edited anything else. Now my issue is with the client1.opvpn file as per the below: client dev tap #dev-node MyTAP #If you renamed your TAP interface or have more than one TAP interface then remove the # at the beginning and change "MyTAP" to its name proto udp remote YOURHOST.dyndns.org 1194 #You will need to enter you dyndns account or static IP address here. The number following it is the port you set in the server's config route 192.168.1.0 255.255.255.0 vpn_gateway 3 #This it the IP address scheme and subnet of your normal network your server is on. Your router would usually be 192.168.1.1 resolv-retry infinite nobind persist-key persist-tun ca "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\ca.crt" cert "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\client1.crt" # Change the next two lines to match the files in the keys directory. This should be be different for each client. key "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\client1.key" # This file should be kept secret ns-cert-type server cipher BF-CBC # Blowfish (default) encrytion comp-lzo verb 1 To me it looks like I will need to amend the following: remote YOURHOST.dyndns.org 1194 #You will need to enter you dyndns account or static IP address here. The number following it is the port you set in the server's config route 192.168.1.0 255.255.255.0 vpn_gateway 3 #This it the IP address scheme and subnet of your normal network your server is on. Your router would usually be 192.168.1.1 So, should the first line be the static IP of the machine that I'm applying this to? The IP address of the server (192.168.1.10) or something else? I'm also stuck on the second part 'route 192.168.1.0 255.255.255.0 vpn_gateway 3' Should this be the router IP which is 192.168.1.1 and the subnet is 255.255.255.0 and that is all I need to alter? The final part that I'm stuggling with is Configuring the router. Basically I have a Netgear DGN2000 and as it mentions that the router should be configured to port forward port 1194 to the server’s IP address of 192.168.1.150 all I have been able to do is in 'Firewall Rules' and on 'Inbound Services', set the Service to 'Any(ALL) and Send to LAN Server point to 1923.168.1.150. I'm not sure if this is correct? It is the following stage of the help guide that I'm struggling with and really need some help with: You need to make sure the port you configured OpenVPN to listen on is forwarded on the router to the IP address of your server. On the WRT54G, port forwarding is configured in the “Applications & Gaming” section. Enter 1194 for the port, UDP for the protocol, and 192.168.1.150 for the IP address. Make sure the entry is enabled and then save the setting. Next, you need to add an entry to the router’s Routing Table. This will enable the router to properly route requests from the clients to the TAP interface of the server. On the WRT54G you would go to the “Setup” page and then the “Advanced Routing” section. Enter the follwing info to make the entry: Enter Route Name: openVPN Destination LAN IP: 192.168.10.0 Subnet Mask: 255.255.255.252 Default Gateway: 192.168.1.150 Interface: LAN & Wireless Once the info has been typed in make sure you save the setting. Can anyone possibly guide me through setting this part up with my Netgear router. I see that once I have these 2 parts complete I'm there so I would really appreciate someone walking me through what is required in completing this. Much appreciated.

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• Windows Media Center Missing?

  - by Eric

  I'm running Windows Vista SP2 64-bit, but it was SP1 when I bought the laptop. It came with Windows Media Center, but I originally found no use for it, so I deleted the shortcut. Now I DO want to use it, and I can't find it anywhere. However, when I insert a DVD, the option to play it with Windows Media Center will appear, and it will launch Windows Media Center, so I must still have it on my system somewhere. My question is, where? Is there an easy way to just run the program using the Run window?

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• Yum install packages to an alternate directory, without chroot?

  - by Stefan Lasiewski

  I would like to use the Foswiki yum repository to install Foswiki (296 packages). The default installation path is /var/lib/, but I want to install it to an alternate location at /opt/www/. In the future, I still want to use yum to check for and apply updates to the packages. Is it possible to use yum to install packages to an location which is different then the default location provided by RPMs? Does Yum provide anything similar to ./configure --prefix=/usr/local/ or rpm --install --prefix=/opt/local? Yum provides the --installroot option, but that appears to primarily for chroot environments.

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• Accessing the Local System Account to accept a software licence

  - by Ryan French

  Hi All, I have a server at the moment running ColdFusion which is being used to access a windows whois program on the server. Each time I call this command via ColdFusion (using cfexecute) the command times out. I believe the issue is because the first time a user runs the .exe file they are asked to accept the licence. ColdFusion is currently set to run under the Local System account and I am just wondering if it is possible to somehow log into this account and run the program manually via the console so that I can accept the licence. I guess my only other option is to change the account ColdFusion runs under, but I would rather not do this.

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• Complex string matching with fuzzywuzzy

  - by That1Guy

  I'm attempting to write a process that matches obscure strings to a single 'master string' for further processing. I have a lot of data that looks something like this: Basketball Basket Ball Football BasketBallR BBall BBall - r FootB ...and so on. These need to be mapped to a master record like so: Basketball = Basket Ball, BBall Basketball - R = BasketBallR, BBall - r I also have instances of data resembling this format: Football -r FootBall - r-g/H,Q,HH These situations need to be separated into different categories before being mapped. For example FootBall - r-g/H,Q,HH should be: Football - r Football - g Football - H Football - Q Football - HH At this point, it still needs to be mapped to a master record... I've tried several different combinations of fuzzywuzzy matching methods, Levenshtein Distance measurements, regex, etc. and can't seem to find a reliable method to logically associate different naming styles of a single item with a master name. I'm throwing my hands up in desperation. Are there any existing python resources than can help sort out my problem? Are there other options? Can anybody point out an obvious option that I might have overlooked? Basically, any suggestion, solution, resource or alternative method is greatly appreciated.

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• Booting from hard drive fails after installing Centos from USB Stick

  - by Rick

  I created a Centos Live 5.4 Bootable USB drive. I used this to install Centos on a HP Netbook. When the system goes to write the Grub boot loader to disk, it wants to write the boot loader to the usb drive (/dev/sda), not the hard disk (/dev/hda). I do have the option of writing the boot loader to /dev/hda, (not to the mbr!) but when I reboot I get an load error and the Grub prompt. How can I get Centos booting from the hard disk instead of using the USB key.

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• Get an yerror plot without a line in Octave

  - by queueoverflow

  I'd like to print a plot with y-error-bars and just plain points. My current Octave script looks like this: errorbar(x_list, y_list, Delta_y_list, "~.x"); title("physikalisches Pendel"); xlabel("a^2 [m^2]"); ylabel("aT^2 [ms^2]"); print -dpdf plot.pdf The plot I get has a line, although I specified the .x style option: How can I get rid of that line? And the ylabel is in the scale as well, is there some way to fix that?

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• Adding multiple websites with different SSL certificates in IIS 7

  - by Timka

  I'm having troubles using SSL for 2 different websites on my IIS 7 server. Please see my setup below: website1: my.corporate.portal.com SSL certificate for website1: *.corporate.portal.com https/443 binded to my.corporate.portal.com website2: client.portal.com SSL certificate issued for: client.portal.com When I try to bind https in IIS7 with the client's certificate, I don't have an option to put host name(grayed out) and as soon as I select 'client.portal.com' cert, I'm getting the following error in IIS: At least one other site is using the same HTTPS binding and the binding is configured with a different certificate. Are you sure that you want to reuse this HTTPS binding and reassign the other site or sites to use the new certificate? If I click 'yes' my.corporate.portal.com website stops using the proper SSL cert. Could you suggest something?

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• Free alternatives to vSphere for ESXi (if one exists)

  - by Tim

  Dear All, Am feeling a touch confused and overwhemled. From what I gather even though ESXi is free I will only be able to manage my VMs (create or power on etc) for 60 days unless I buy a licence for vSphere. This is somewhat frustrating. As I am looking for a home lab to practice for various certs I was hoping to also practice using vmware stuff to do so. Have I got the wrong end of the stick? Is there a free built in web interface like there was with VMServer or is the only option vSphere (which is massively out of my price range)? Looking forward to your responses and hoping that I have just missed something obvious! Regards Tim

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• Is Rsync like subversion, but for a server?

  - by johnlai2004

  I'm trying to learn how to use rsync. I want to create daily backs up of my production server. Right now I run the command rsync -azr /var/www/* [email protected]:/var/www Now let's say one day, I want to roll back the /var/www/ directory on my production server to last month's version. How do I tell rsync to retrieve version N? On reading that rsync only copies differences between src and dest, I assumed rsync works like subversion where you commit changes to a destination, and keep track of every version, and with the option to checkout any version at anytime. Is that the way rsync works? It's like subversion but for an entire server? That would be great because then it means I don't have to do full ssh copies for my nightly backups.

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• IE10 does not open .pdf

  - by user203298

  I can't open any PDFs in IE10 on Win7 64bit. I've tested with PDFs from Intranet / Internet / local file system, http and https. I've tested installing/uninstalling Acrobat Reader 11.0.03 and the Nitro PDF Reader. I've also tried enabling/disabling the Tools Internet Options Advanced Security Do not save encrypted pages to disk option. In Google Chrome PDFs are opened in the Acrobat Reader Plugin, but in IE10 the only thing I always get is a small cross in the top left corner of the browser. Can anybody help me?

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• RESTful applications logic and cross resource operations

  - by Gaz_Edge

  I have an RESTful api that allows my users to receive enquiries about their business e.g. 'I would like to book service x on date y. Is this available?'. The api saves this information as a resource to the following URI users/{userId}/enquiries/{enquiryId} The information shown when this resource is retrieved are the standard sort of things you'd expect from an enquiry - email, first_name, last_name, address, message The api also allows customers to be created for a user. The customer has a login and password and also a profile. The following URIs expose these two resources PUT users/{userId}/customers/{customerId} PUT users/{userId}/customers/{customerId}/profile The problem I am having is that I would like to have the ability to allow users to create a customer from an enquiry. For example, the user is able to offer their service on the date requested and will then want to setup a customer with login details etc to allow them to manage the rest of the process. The obvious answer would be to use a URI like users/{userId}/enquiries/{enquiryId}/convert-to-client The problem with this is is that it somewhat goes against a lot of what I've been reading about how to implement REST (specifically from the book Restful Web Services which suggests that URIs should point to resources not operations on resources). The other option would be to get the client application (i.e. the code that calls the api) to handle some of this application logic. This doesn't quite feel right to me. I have implemented in my design that the client app is fairly dumb. It knows just enough to display the results from the API, and does not contain any application logic. Would be great to hear what others views are on the best way of setting this up Am I wrong to have no application logic in the client app? How would I perform this operation purely in the REST api?

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• How to make XP install ubuntu from USB?

  - by Apoorv

  I want to install ubuntu on my PC which is running windows XP right now. I have made my pen drive bootable and have loaded Ubuntu on it. When I insert the pen drive at the time of booting of my PC, nothing happens and windows XP starts normally instead of asking me if I want to boot from my pen drive. Also when, I entered my BIOS setting to change the boot order there was no option of pen drive as a boot device. Please suggest me a way to install the OS using my already made bootable pen drive. And there's no problem with my pen drive cause I have tried it on my friends PC and it worked normally. Thanks in advance

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• How can I read a reel-to-reel tape from the 1970s?

  - by Joe Wreschnig

  A close friend of my mother worked at DEC in the 1970s and 1980s. She recently passed away, and in sorting through her estate, my mother discovered some reel-to-reel magnetic tape. We are curious about what might be on it. I haven't yet seen a picture of it, but Wikipedia tells me this is most likely DECtape. Is there any chance the data on it is still good? It was not preserved with great care, but as far as we know it has also never been particularly abused. Just left in a box and moved a few times. If the data is still valid, do we need to dig up a PDP or VAX or read it, or is there a more modern option?

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• Sharing Windows Folders on a Network... other PCs see but can't access

  - by John

  I'm soooo tired of network setup issues. All I want to do is share a folder and all it's sub-folders so other PCs on my network can view and change this remote location. Why is it that setting a dir to "shared" doesn't actually make it usable in any way? The other PC can see the fodler but is unable to actually open it and look inside. It seems every time I want to do this I go through some semi-random process of right clicking the folder and enabling sharing, then looking in the folder properties to add permissions and other sharing... and then I end up with some folders working but others will randomly block permission on certain files or sub-dirs. I have 5 PCs in my local testing network and I cannot believe it should be this complicated... where is the simple "make this folder work on the network" option?! I have a mixture of XP, Vista & W7 machines, but this seems common to all of them.

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• How to create a filesystem mountable by windows in linux?

  - by wcoenen

  I have attached an external USB disk to my debian gnu/linux system. The disk showed up as device /dev/sdc, and I prepared it like this: created a single partition with fdisk /dev/sdc (and some more commands in the interactive session that follows) formatted the partition with mkfs.msdos /dev/sdc1 If I then attach the USB disk to a Windows XP or Vista system, then no new drive becomes available. The disk and its partition show up fine in the disk managment tool under "computer management", but apparently the file system in the partition is not recognized. How do I create a FAT32 file system which can actually be used in windows? edit: I've given up on this and went with a NTFS file system created by windows. In debian lenny this can be mounted read-write but apparently it requires you to install the "ntfs-3g" package and explicitly pass the -t ntfs-3g option to the mount command.

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