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• LTSP thin client to single user mode

  - by DJC

  Is it possible to boot a LTSP thin client to single user mode? I've updated the default entry under /var/lib/tftpboot/ltsp/i386/pxelinux.cfg to read as follows: - append ro initrd=initrd.img root=/dev/nbd0 init=/sbin/init-ltsp nomodeset quiet splash **single** plymouth:force-splash vt.handoff=7 nbdroot=:ltsp_i386 This kind of works! I see the boot progress to the point where it asks me to either enter the root password or Ctrl+D to bypass. However, the boot process just seems to continue without providing an chance to do either.

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• Intel Puts Mobile CPUs on a Diet for Ultra-Thin Laptops

  <b>Hardware Central:</b> "Intel today broadened its number of ultra-low voltage processors (ULV) to include a complete range, from Celeron to Core i7, for the super-thin laptop market. This announcement builds on Intel's January introduction of laptop processors, which included only a few low-end ULV processors."

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• Node.js Lockstep Multiplayer Architecture

  - by Wakaka

  Background I'm using the lockstep model for a multiplayer Node.js/Socket.IO game in a client-server architecture. User input (mouse or keypress) is parsed into commands like 'attack' and 'move' on the client, which are sent to the server and scheduled to be executed on a certain tick. This is in contrast to sending state data to clients, which I don't wish to use due to bandwidth issues. Each tick, the server will send the list of commands on that tick (possibly empty) to each client. The server and all clients will then process the commands and simulate that tick in exactly the same way. With Node.js this is actually quite simple due to possibility of code sharing between server and client. I'll just put the deterministic simulator in the /shared folder which can be run by both server and client. The server simulation is required so that there is an authoritative version of the simulation which clients cannot alter. Problem Now, the game has many entity classes, like Unit, Item, Tree etc. Entities are created in the simulator. However, for each class, it has some methods that are shared and some that are client-specific. For instance, the Unit class has addHp method which is shared. It also has methods like getSprite (gets the image of the entity), isVisible (checks if unit can be seen by the client), onDeathInClient (does a bunch of stuff when it dies only on the client like adding announcements) and isMyUnit (quick function to check if the client owns the unit). Up till now, I have been piling all the client functions into the shared Unit class, and adding a this.game.isServer() check when necessary. For instance, when the unit dies, it will call if (!this.game.isServer()) { this.onDeathInClient(); }. This approach has worked pretty fine so far, in terms of functionality. But as the codebase grew bigger, this style of coding seems a little strange. Firstly, the client code is clearly not shared, and yet is placed under the /shared folder. Secondly, client-specific variables for each entity are also instantiated on the server entity (like unit.sprite) and can run into problems when the server cannot instantiate the variable (it doesn't have Image class like on browsers). So my question is, is there a better way to organize the client code, or is this a common way of doing things for lockstep multiplayer games? I can think of a possible workaround, but it does have its own problems. Possible workaround (with problems) I could use Javascript mixins that are only added when in a browser. Thus, in the /shared/unit.js file in the /shared folder, I would have this code at the end: if (typeof exports !== 'undefined') module.exports = Unit; else mixin(Unit, LocalUnit); Then I would have /client/localunit.js store an object LocalUnit of client-side methods for Unit. Now, I already have a publish-subscribe system in place for events in the simulator. To remove the this.game.isServer() checks, I could publish entity-specific events whenever I want the client to do something. For instance, I would do this.publish('Death') in /shared/unit.js and do this.subscribe('Death', this.onDeathInClient) in /client/localunit.js. But this would make the simulator's event listeners list on the server and the client different. Now if I want to clear all subscribed events only from the shared simulator, I can't. Of course, it is possible to create two event subscription systems - one client-specific and one shared - but now the publish() method would have to do if (!this.game.isServer()) { this.publishOnClient(event); }. All in all, the workaround off the top of my head seems pretty complicated for something as simple as separating the client and shared code. Thus, I wonder if there is an established and simpler method for better code organization, hopefully specific to Node.js games.

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• Do you charge a client for email and chat communication as a freelancer? [closed]

  - by skyork

  For a project that is billed by hours, should a freelancer charge the client for the amount of time he/she spends on email/chat correspondence? For example, the client sends an email to the the freelancer, outlining the requirements. Should the freelancer charge the client for the time during which he/she reads the email and writes a reply. The same goes for chat conversations for clarifying the requirements. In particular, if the freelancer's English is not very good, so that he/she spends extra time on understanding what the client wants and explaining him/herself (e.g. copying and pasting into Google Translate), should such time be charged to the client too?

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• HP Compaq T20 Thin Clients & Windows Server 2008 R2: RDP Disconnects instantly.

  - by sinni800

  Hello, I have some HP Compaq T20 Thin Clients connecting to a Windows Server 2003. Now I want to upgrade to 2008 R2, so I tested a trial installation with remote desktop in administration mode. So I try to connect my T20 to the server and... It doesn't matter if I turn off encryption or not it disconnects with an generic error instantly. The T20s have Windows CE embedded with RDP 5.2 installed. Out of curiosity I tried Windows Server 2008 (no R2) and it worked! I tried the same with a Windows 7 machine set up with- no work. I can not update the T20s to Windows NT embedded for example because they only have a low amount of flash memory. It seems the "new" version of RDP coming from Windows 7 / Windows Server 2008 R2 is completely incompatible with the older 5.2 version. People are having the same problem here: http://social.technet.microsoft.com/Forums/en-US/winserverTS/thread/700488cd-a872-47e5-85a7-595f050afc10

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• Mac OS X multi-user thin client server (terminal server)?

  - by username

  Is there any solution out there to turn a Mac into a true multi-user thin client server? I'd like to set up a few cheap PCs with access to a couple accounts using something like VNC, but it isn't economical to buy a new server for each user or a new license for virtualized OS X Server for each user. I'm fully aware that OS X Server lets you set up users with "network home folders," and I know there's also VNC built into Mac OS X. Neither of these fit the bill (the former requires a thick client, and the latter is single-user only) UPDATE: yay, Lion! http://www.9to5mac.com/54102/10-7-lion-allows-multi-user-remote-computing

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• Recommendation for hardware upgrade: thin clients? Or...?

  - by Alex C.

  I work for an animal shelter in Upstate New York. We have about 50 machines running XP Pro. They're connected to a Windows network with a domain. About half of these computers are used for nothing more than using two web-based apps -- one to keep track of our animals, the other to process credit cards. Having a full-blown desktop PC seems like overkill for this purpose. The PCs are three-to-five years old, and I'd like to come up with a plan to upgrade the hardware. Our donations are down (not surprising, given the economy), so cost is a big factor. Can people recommend some options? Some sort of thin client, maybe?

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• How to HIDE "client denied by server configuration:" error in log

  - by Keith

  I want to block access to my web server by default as a precaution but I keep getting the following errors showing up in my error log. [Wed Jun 27 23:30:54 2012] [error] [client 86.77.20.107] client denied by server configuration: /home/www/default/Edu.jar [Wed Jun 27 23:32:40 2012] [error] [client 86.77.20.107] client denied by server configuration: /home/www/default/REST.jar [Wed Jun 27 23:35:39 2012] [error] [client 86.77.20.107] client denied by server configuration: /home/www/default/Set.jar [Thu Jun 28 01:01:17 2012] [error] [client 58.218.199.227] client denied by server configuration: /home/www/default/proxyheader.php [Thu Jun 28 02:34:57 2012] [error] [client 58.218.199.227] client denied by server configuration: /home/www/default/proxy.php [Thu Jun 28 05:41:33 2012] [error] [client 58.218.199.227] client denied by server configuration: /home/www/default/proxyheader.php [Thu Jun 28 06:55:10 2012] [error] [client 180.76.6.20] client denied by server configuration: /home/www/default/ [Thu Jun 28 07:31:26 2012] [error] [client 86.77.20.107] client denied by server configuration: /home/www/default/Edu.jar [Thu Jun 28 07:32:25 2012] [error] [client 86.77.20.107] client denied by server configuration: /home/www/default/REST.jar [Thu Jun 28 07:36:10 2012] [error] [client 86.77.20.107] client denied by server configuration: /home/www/default/Set.jar I don't really want these errors to show up but whatever I do, I can't get rid of them. Does anyone know how I can achieve this? Here is a copy of my configuration. <VirtualHost *:80> DocumentRoot /home/www/default <Directory /> AllowOverride None Order Deny,Allow Deny from all </Directory> #ErrorLog /var/log/apache2/error.log #LogLevel warn CustomLog /var/log/apache2/access.log combined </VirtualHost>

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• configuring linux console email client to check attachments

  - by Christopher

  I need to configure a IMAP4 capable (console-based) email client to - check and edit the name of an attachment ("contains umlauts?" - change character ä to ae) - delete emails that don't fit certain requirements (not PDF, DOC,... not from domain xyz.com) Whether the client can do everything by itself or can just trigger a script on incoming mail doesn't matter. Anyone have an idea with mail client would be suitable for such a task?

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• Free tools for analyzing client-server communication issues

  - by roberto

  Hi, we have some issues with a client-server based application and we would like to better understand client-server communication without going to the software company that sold the application. At least we would like to perform the analysis in parallel. Can you suggest to me a dummy proof application that we can easily get and install to analyze client-server traffic? Many thanks!

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• Free tools for analizing client-server comunication issues

  - by roberto

  Hi, we have some issues with a client-server based application and we would like to better understand client-server comunication without going to the software company that sold the application. At least we would like to perform the analysis in parallel. Can you suggest to me a dummy proof application that we can easily get and install to analise client-server traffic? Many thanks!

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• Web Servicet Client in JBOSS 5.1 with JDK6

  - by dcp

  This is a continuation of the question here: http://stackoverflow.com/questions/2435286/jboss-does-app-have-to-be-compiled-under-same-jdk-as-jboss-is-running-under It's different enough though that it required a new question. I am trying to use jdk6 to run JBOSS 5.1, and I downloaded the JDK6 version of JBOSS 5.1. This works fine and my EAR application deploys fine. However, when I want to run a web service client with code like this: public static void main(String[] args) throws Exception { System.out.println("creating the web service client..."); TestClient client = new TestClient("http://localhost:8080/tc_test_project-tc_test_project/TestBean?wsdl"); Test service = client.getTestPort(); System.out.println("calling service.retrieveAll() using the service client"); List<TestEntity> list = service.retrieveAll(); System.out.println("the number of elements in list retrieved using the client is " + list.size()); } I get the following exception: javax.xml.ws.WebServiceException: java.lang.UnsupportedOperationException: setProperty must be overridden by all subclasses of SOAPMessage at org.jboss.ws.core.jaxws.client.ClientImpl.handleRemoteException(ClientImpl.java:396) at org.jboss.ws.core.jaxws.client.ClientImpl.invoke(ClientImpl.java:302) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:170) at org.jboss.ws.core.jaxws.client.ClientProxy.invoke(ClientProxy.java:150) Now, here's the really interesting part. If I change the JDK that my the code above is running under from JDK6 to JDK5, the exception above goes away! It's really strange. The only way I found for the code above to run under JDK6 was to take the JBOSS_HOME/lib/endorsed folder and copy it to JDK6_HOME/lib. This seems like it shouldn't be necessary, but it is. Is there any other way to make this work other than using the workaround I just described?

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• Wordpress content authoring tutorial for non-techie client....

  - by metal-gear-solid

  I made a website for client in wordpress and client will ad ur own content. Client doesn't know how to handle Wordpress and XHTML CSS. but he knows MS word 2007. Client is on remote location.Is there any easy to understand article/video tutorials to give to client on how he can understand wordpress admin and add content/images/video using editor? and how to disable unneeded things for client from wordpress admin ?

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• Implementing client callback functionality in WCF

  - by PoweredByOrange

  The project I'm working on is a client-server application with all services written in WCF and the client in WPF. There are cases where the server needs to push information to the client. I initially though about using WCF Duplex Services, but after doing some research online, I figured a lot of people are avoiding it for many reasons. The next thing I thought about was having the client create a host connection, so that the server could use that to make a service call to the client. The problem however, is that the application is deployed over the internet, so that approach requires configuring the firewall to allow incoming traffic and since most of the users are regular users, that might also require configuring the router to allow port forwarding, which again is a hassle for the user. My third option is that in the client, spawns a background thread which makes a call to the GetNotifications() method on server. This method on the server side then, blocks until an actual notification is created, then the thread is notified (using an AutoResetEvent object maybe?) and the information gets sent to the client. The idea is something like this: Client private void InitializeListener() { Task.Factory.StartNew(() => { while (true) { var notification = server.GetNotifications(); // Display the notification. } }, CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Default); } Server public NotificationObject GetNotifications() { while (true) { notificationEvent.WaitOne(); return someNotificationObject; } } private void NotificationCreated() { // Inform the client of this event. notificationEvent.Set(); } In this case, NotificationCreated() is a callback method called when the server needs to send information to the client. What do you think about this approach? Is this scalable at all?

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• Comunication from Server to Client + Client LAN

  - by Filipe YaBa Polido

  I'm having some trouble with some network setup. I've tried OpenVPN, SocialVPN, Hamachi, still it is not working. This is my setup: Server A: NIC 1 with internet public address, NIC 2 to LAN Client B PC: NIC 1 (192.168.10.2) connects to router 192.168.10.1 Client B Device: 192.168.10.3 (Configured via software, can't do much here) Problem: Server A must connect to cliente device B. (I can install software needed at Client B PC). However... I can't change the router to some model with VPN like Draytek or Cisco :( OpenVPN fails at bridging, PC B can ping Server A, but Server A can't ping Device B, only PC B. What else can I do?!?!?

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• Client side certificates in client browsers with unix server for management

  - by user146253

  We are currently running Unix dedicated servers for everything (Web cluster, database, FTP, batch, ...) except for a Microsoft Active Directory Certificate Services. The sole purpose of this Windows box is to provide client side certificates to our clients browsers. All our clients are required to install a client side certificate on order for them to be able to access our website. Is there an alternative in the Unix space? The purpose is to make sure only the approved hardware of an approved client can access our website. I'm open for any solution that provides me with this level of security. We are however talking about thousands of certified computers just so you can factor that in in a proposed solution. Optionally we would also like to be able to revoke access. With Regards.

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• Website access per client and each client having multiple users Sample Application

  - by windson

  I'm interested in building a web application in .NET that is scalable to multiple Clients and each and every Client has users associated with them. Suppose that my website is xyz.com and I have 3 clients "abc", "klm", "pqr" and I want to give access to features of xyz.com under the link as follows www.xyz.com/abc www.xyz.com/klm www.xyz.com/pqr and Client abc has N users and I want to set 3 roles for every client's user role. Is there any sample application in .NET that support this kind of website access per client having multiple users? And If I use ASP.NET Membership will that be a suitable membership solution or Do I need to opt for any other type of Membership defined by my own or already available in open source market for .NET. Edit: All the clients will have same functionality. I would like to build a generic model for www.xyz.com/{whatever} so that in future if a new client want to register with me he/she just have to give client name and up on adding client name all the features avaiable to exising clients will be applicable.

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• Open-source and client-side IRC-Client

  - by user125197

  I'm administrating a homepage with an IRC-Webclient. At the moment, it uses a Java-client, modified to be SSL-compatible and compatible with whatever design I want to use. The usual PJIRC thing, with users wishes and concerns implemented (I'll give you SSL-PJIRC if you want - no problem. The login-script will be improved for IE6-support this weekend, means write the object tag if an old IE is found, that's it. Rest runs perfectly well). But still, the better user experience would be a client that only requires the user to enable JavaScript. So, before I go into rewriting and customizing a complete Java-IRC-solution, I'd like to ask some other people - after researching for half a year of time. The requirements are: a) Free hosting, no cgi-bin is acceptable. A lot of hosters also have CGI supported, but it doesn't allow IRC-access. So, seems you are limited to x10-hosting for CGI:IRC. b) Solution must be open source (not free as in free beer, but free as in free speech - I want to be able to read every line of the code). c) Hosting cannot be limited to Windows-hosting. Free operation systems (anything with Linux, BSD, whatever - I think you get what I mean) must be possible. d) No server-side technology. I'm limited to everything that runs client-side only. (Well, a Java-Applet does...). d) Solution must support SSL. e) The side must be able to move. Means, you register to a new free hoster, load your things up via FileZilla and the thing simply runs. No server-concerning implementations needed. f) Old browsers must be supported. From all my research, there are two ways a) Java-Applet b) Use HTML5-Websockets (it is impossible to use the JavaScript-library I found, as it depends on ActiveX - means, Windows hosting). b) means "you are going to enter very unstable content". I worked with HTML5 for month, and, well ... Though, HTML5 also is not suitable for older browsers (old browser support is an absolutely necessary requirement). PHP by the way is a server side solution ... so no line of PHP. My idea now was a Java Applet, and a fallback which again is embedded and proprietary, but only requieres JavaScript (wsirc or Mibbit are great here, whilst I prefer wsirc ... and zooming fonts that are plainly to small, but worse, cannot read the code). So my question is - with free hosting, not installation on server, plain upload - do you see and open source, complelety client-side, ssl-compatible way to use or write a client? This wouldn't be my first programming project, I'm not afraid of the code. If there was a way and I had to write it, even from scratch, I'd do. From all I know, there sadly is none. But maybe some experienced admin has an idea? Best Wishes, yetanotheruser Sry my English isn't perfect. It's enough for programming at least.

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• Can a server in any case request a client for any service?

  - by Tarique Anwar

  Can a server in any case request a client for any service?

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• Internal Server Error with mod_wsgi [django] on windows xp

  - by sacabuche

  when i run development server it works very well, even an empty project runing in mod_wsgi i have no problem but when i want to put my own project i get an Internal Server Error (500) in my apache conf i put WSGIScriptAlias /codevents C:/django/apache/CODEvents.wsgi <Directory "C:/django/apache"> Order allow,deny Allow from all </Directory> Alias /codevents/media C:/django/projects/CODEvents/html <Directory "C:/django/projects/CODEvents/html"> Order allow,deny Allow from all </Directory> in CODEvents.wsgi import os, sys sys.path.append('C:\\Python26\\Lib\\site-packages\\django') sys.path.append('C:\\django\\projects') sys.path.append('C:\\django\\apps') sys.path.append('C:\\django\\projects\\CODEvents') os.environ['DJANGO_SETTINGS_MODULE'] = 'CODEvents.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler() and in my error_log it said: [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] mod_wsgi (pid=1848): Exception occurred processing WSGI script 'C:/django/apache/CODEvents.wsgi'. [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] Traceback (most recent call last): [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\core\\handlers\\wsgi.py", line 241, in __call__ [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] response = self.get_response(request) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\core\\handlers\\base.py", line 142, in get_response [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.handle_uncaught_exception(request, resolver, exc_info) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\core\\handlers\\base.py", line 166, in handle_uncaught_exception [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return debug.technical_500_response(request, *exc_info) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\views\\debug.py", line 58, in technical_500_response [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] html = reporter.get_traceback_html() [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\views\\debug.py", line 137, in get_traceback_html [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return t.render(c) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 173, in render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self._render(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 167, in _render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.nodelist.render(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 796, in render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] bits.append(self.render_node(node, context)) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\debug.py", line 72, in render_node [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] result = node.render(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\debug.py", line 89, in render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] output = self.filter_expression.resolve(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 579, in resolve [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] new_obj = func(obj, *arg_vals) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\defaultfilters.py", line 693, in date [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return format(value, arg) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 281, in format [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return df.format(format_string) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 30, in format [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] pieces.append(force_unicode(getattr(self, piece)())) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 187, in r [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.format('D, j M Y H:i:s O') [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 30, in format [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] pieces.append(force_unicode(getattr(self, piece)())) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\encoding.py", line 66, in force_unicode [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] s = unicode(s) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\functional.py", line 206, in __unicode_cast [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.__func(*self.__args, **self.__kw) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\__init__.py", line 55, in ugettext [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return real_ugettext(message) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\functional.py", line 55, in _curried [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return _curried_func(*(args+moreargs), **dict(kwargs, **morekwargs)) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\__init__.py", line 36, in delayed_loader [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return getattr(trans, real_name)(*args, **kwargs) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 276, in ugettext [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return do_translate(message, 'ugettext') [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 266, in do_translate [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] _default = translation(settings.LANGUAGE_CODE) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 176, in translation [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] default_translation = _fetch(settings.LANGUAGE_CODE) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 159, in _fetch [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] app = import_module(appname) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\importlib.py", line 35, in import_module [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] __import__(name) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\contrib\\admin\\__init__.py", line 1, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\contrib\\admin\\helpers.py", line 1, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from django import forms [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\forms\\__init__.py", line 17, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from models import * [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\forms\\models.py", line 6, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from django.db import connections [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\db\\__init__.py", line 75, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] connection = connections[DEFAULT_DB_ALIAS] [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\db\\utils.py", line 91, in __getitem__ [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] backend = load_backend(db['ENGINE']) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\db\\utils.py", line 49, in load_backend [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] raise ImproperlyConfigured(error_msg) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] TemplateSyntaxError: Caught ImproperlyConfigured while rendering: 'django.db.backends.postgresql_psycopg2' isn't an available database backend. [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] Try using django.db.backends.XXX, where XXX is one of: [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] 'dummy', 'mysql', 'oracle', 'postgresql', 'postgresql_psycopg2', 'sqlite3' [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] Error was: cannot import name utils please help me!!

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• Internal Server Error with mod_wgsi [django] on windows xp

  - by sacabuche

  when i run development server it works very well, even an empty project runing in mod_wsgi i have no problem but when i want to put my own project i get an Internal Server Error (500) in my apache conf i put WSGIScriptAlias /codevents C:/django/apache/CODEvents.wsgi <Directory "C:/django/apache"> Order allow,deny Allow from all </Directory> Alias /codevents/media C:/django/projects/CODEvents/html <Directory "C:/django/projects/CODEvents/html"> Order allow,deny Allow from all </Directory> in CODEvents.wsgi import os, sys sys.path.append('C:\\Python26\\Lib\\site-packages\\django') sys.path.append('C:\\django\\projects') sys.path.append('C:\\django\\apps') sys.path.append('C:\\django\\projects\\CODEvents') os.environ['DJANGO_SETTINGS_MODULE'] = 'CODEvents.settings' import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler() and in my error_log it said: [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] mod_wsgi (pid=1848): Exception occurred processing WSGI script 'C:/django/apache/CODEvents.wsgi'. [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] Traceback (most recent call last): [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\core\\handlers\\wsgi.py", line 241, in __call__ [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] response = self.get_response(request) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\core\\handlers\\base.py", line 142, in get_response [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.handle_uncaught_exception(request, resolver, exc_info) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\core\\handlers\\base.py", line 166, in handle_uncaught_exception [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return debug.technical_500_response(request, *exc_info) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\views\\debug.py", line 58, in technical_500_response [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] html = reporter.get_traceback_html() [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\views\\debug.py", line 137, in get_traceback_html [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return t.render(c) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 173, in render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self._render(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 167, in _render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.nodelist.render(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 796, in render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] bits.append(self.render_node(node, context)) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\debug.py", line 72, in render_node [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] result = node.render(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\debug.py", line 89, in render [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] output = self.filter_expression.resolve(context) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\__init__.py", line 579, in resolve [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] new_obj = func(obj, *arg_vals) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\template\\defaultfilters.py", line 693, in date [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return format(value, arg) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 281, in format [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return df.format(format_string) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 30, in format [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] pieces.append(force_unicode(getattr(self, piece)())) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 187, in r [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.format('D, j M Y H:i:s O') [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\dateformat.py", line 30, in format [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] pieces.append(force_unicode(getattr(self, piece)())) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\encoding.py", line 66, in force_unicode [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] s = unicode(s) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\functional.py", line 206, in __unicode_cast [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return self.__func(*self.__args, **self.__kw) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\__init__.py", line 55, in ugettext [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return real_ugettext(message) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\functional.py", line 55, in _curried [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return _curried_func(*(args+moreargs), **dict(kwargs, **morekwargs)) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\__init__.py", line 36, in delayed_loader [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return getattr(trans, real_name)(*args, **kwargs) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 276, in ugettext [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] return do_translate(message, 'ugettext') [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 266, in do_translate [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] _default = translation(settings.LANGUAGE_CODE) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 176, in translation [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] default_translation = _fetch(settings.LANGUAGE_CODE) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\translation\\trans_real.py", line 159, in _fetch [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] app = import_module(appname) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\utils\\importlib.py", line 35, in import_module [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] __import__(name) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\contrib\\admin\\__init__.py", line 1, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\contrib\\admin\\helpers.py", line 1, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from django import forms [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\forms\\__init__.py", line 17, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from models import * [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\forms\\models.py", line 6, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] from django.db import connections [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\db\\__init__.py", line 75, in <module> [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] connection = connections[DEFAULT_DB_ALIAS] [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\db\\utils.py", line 91, in __getitem__ [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] backend = load_backend(db['ENGINE']) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] File "C:\\Python26\\lib\\site-packages\\django\\db\\utils.py", line 49, in load_backend [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] raise ImproperlyConfigured(error_msg) [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] TemplateSyntaxError: Caught ImproperlyConfigured while rendering: 'django.db.backends.postgresql_psycopg2' isn't an available database backend. [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] Try using django.db.backends.XXX, where XXX is one of: [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] 'dummy', 'mysql', 'oracle', 'postgresql', 'postgresql_psycopg2', 'sqlite3' [Mon May 24 23:31:39 2010] [error] [client 127.0.0.1] Error was: cannot import name utils please help me!!

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• Standards Corner: OAuth WG Client Registration Problem

  - by Tanu Sood

  Phil Hunt is an active member of multiple industry standards groups and committees (see brief bio at the end of the post) and has spearheaded discussions, creation and ratifications of  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-ascii- mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi- mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} industry standards including the Kantara Identity Governance Framework, among others. Being an active voice in the industry standards development world, we have invited him to share his discussions, thoughts, news & updates, and discuss use cases, implementation success stories (and even failures) around industry standards on this monthly column. Author: Phil Hunt This afternoon, the OAuth Working Group will meet at IETF88 in Vancouver to discuss some important topics important to the maturation of OAuth. One of them is the OAuth client registration problem.OAuth (RFC6749) was initially developed with a simple deployment model where there is only monopoly or singleton cloud instance of a web API (e.g. there is one Facebook, one Google, on LinkedIn, and so on). When the API publisher and API deployer are the same monolithic entity, it easy for developers to contact the provider and register their app to obtain a client_id and credential.But what happens when the API is for an open source project where there may be 1000s of deployed copies of the API (e.g. such as wordpress). In these cases, the authors of the API are not the people running the API. In these scenarios, how does the developer obtain a client_id? An example of an "open deployed" API is OpenID Connect. Connect defines an OAuth protected resource API that can provide personal information about an authenticated user -- in effect creating a potentially common API for potential identity providers like Facebook, Google, Microsoft, Salesforce, or Oracle. In Oracle's case, Fusion applications will soon have RESTful APIs that are deployed in many different ways in many different environments. How will developers write apps that can work against an openly deployed API with whom the developer can have no prior relationship?At present, the OAuth Working Group has two proposals two consider: Dynamic RegistrationDynamic Registration was originally developed for OpenID Connect and UMA. It defines a RESTful API in which a prospective client application with no client_id creates a new client registration record with a service provider and is issued a client_id and credential along with a registration token that can be used to update registration over time.As proof of success, the OIDC community has done substantial implementation of this spec and feels committed to its use. Why not approve?Well, the answer is that some of us had some concerns, namely: Recognizing instances of software - dynamic registration treats all clients as unique. It has no defined way to recognize that multiple copies of the same client are being registered other then assuming if the registration parameters are similar it might be the same client. Versioning and Policy Approval of open APIs and clients - many service providers have to worry about change management. They expect to have approval cycles that approve versions of server and client software for use in their environment. In some cases approval might be wide open, but in many cases, approval might be down to the specific class of software and version. Registration updates - when does a client actually need to update its registration? Shouldn't it be never? Is there some characteristic of deployed code that would cause it to change? Options lead to complexity - because each client is treated as unique, it becomes unclear how the clients and servers will agree on what credentials forms are acceptable and what OAuth features are allowed and disallowed. Yet the reality is, developers will write their application to work in a limited number of ways. They can't implement all the permutations and combinations that potential service providers might choose. Stateful registration - if the primary motivation for registration is to obtain a client_id and credential, why can't this be done in a stateless fashion using assertions? Denial of service - With so much stateful registration and the need for multiple tokens to be issued, will this not lead to a denial of service attack / risk of resource depletion? At the very least, because of the information gathered, it would difficult for service providers to clean up "failed" registrations and determine active from inactive or false clients. There has yet to be much wide-scale "production" use of dynamic registration other than in small closed communities. Client Association A second proposal, Client Association, has been put forward by Tony Nadalin of Microsoft and myself. We took at look at existing use patterns to come up with a new proposal. At the Berlin meeting, we considered how WS-STS systems work. More recently, I took a review of how mobile messaging clients work. I looked at how Apple, Google, and Microsoft each handle registration with APNS, GCM, and WNS, and a similar pattern emerges. This pattern is to use an existing credential (mutual TLS auth), or client bearer assertion and swap for a device specific bearer assertion.In the client association proposal, the developer's registration with the API publisher is handled by having the developer register with an API publisher (as opposed to the party deploying the API) and obtaining a software "statement". Or, if there is no "publisher" that can sign a statement, the developer may include their own self-asserted software statement.A software statement is a special type of assertion that serves to lock application registration profile information in a signed assertion. The statement is included with the client application and can then be used by the client to swap for an instance specific client assertion as defined by section 4.2 of the OAuth Assertion draft and profiled in the Client Association draft. The software statement provides a way for service provider to recognize and configure policy to approve classes of software clients, and simplifies the actual registration to a simple assertion swap. Because the registration is an assertion swap, registration is no longer "stateful" - meaning the service provider does not need to store any information to support the client (unless it wants to). Has this been implemented yet? Not directly. We've only delivered draft 00 as an alternate way of solving the problem using well-known patterns whose security characteristics and scale characteristics are well understood. Dynamic Take II At roughly the same time that Client Association and Software Statement were published, the authors of Dynamic Registration published a "split" version of the Dynamic Registration (draft-richer-oauth-dyn-reg-core and draft-richer-oauth-dyn-reg-management). While some of the concerns above are addressed, some differences remain. Registration is now a simple POST request. However it defines a new method for issuing client tokens where as Client Association uses RFC6749's existing extension point. The concern here is whether future client access token formats would be addressed properly. Finally, Dyn-reg-core does not yet support software statements. Conclusion The WG has some interesting discussion to bring this back to a single set of specifications. Dynamic Registration has significant implementation, but Client Association could be a much improved way to simplify implementation of the overall OpenID Connect specification and improve adoption. In fairness, the existing editors have already come a long way. Yet there are those with significant investment in the current draft. There are many that have expressed they don't care. They just want a standard. There is lots of pressure on the working group to reach consensus quickly.And that folks is how the sausage is made.Note: John Bradley and Justin Richer recently published draft-bradley-stateless-oauth-client-00 which on first look are getting closer. Some of the details seem less well defined, but the same could be said of client-assoc and software-statement. I hope we can merge these specs this week. Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-family:"Calibri","sans-serif"; mso-ascii- mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi- mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} About the Writer: Phil Hunt joined Oracle as part of the November 2005 acquisition of OctetString Inc. where he headed software development for what is now Oracle Virtual Directory. Since joining Oracle, Phil works as CMTS in the Identity Standards group at Oracle where he developed the Kantara Identity Governance Framework and provided significant input to JSR 351. Phil participates in several standards development organizations such as IETF and OASIS working on federation, authorization (OAuth), and provisioning (SCIM) standards.  Phil blogs at www.independentid.com and a Twitter handle of @independentid.

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• DDD and Client/Server apps

  - by Christophe Herreman

  I was wondering if any of you had successfully implemented DDD in a Client/Server app and would like to share some experiences. We are currently working on a smart client in Flex and a backend in Java. On the server we have a service layer exposed to the client that offers CRUD operations amongst some other service methods. I understand that in DDD these services should be repositories and services should be used to handle use cases that do not fit inside a repository. Right now, we mimic these services on the client behind an interface and inject implementations (Webservices, RMI, etc) via an IoC container. So some questions arise: should the server expose repositories to the client or do we need to have some sort of a facade (that is able to handle security for instance) should the client implement repositories (and DDD in general?) knowing that in the client, most of the logic is view related and real business logic lives on the server. All communication with the server happens asynchronously and we have a single threaded programming model on the client. how about mapping client to server objects and vice versa? We tried DTO's but reverted back to exposing the state of our objects and mapping directly to them. I know this is considered bad practice, but it saves us an incredible amount of time) In general I think a new generation of applications is coming with the growth of Flex, Silverlight, JavaFX and I'm curious how DDD fits into this.

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• How important is using the same language for client and server?

  - by Makita

  I have been evaluating architecture solutions for a mobile project that will have a web-service/app in addition to native apps and have been looking at various libraries, frameworks, and stacks like Meteor, this being a sort of "open stack package framework", is tightly bound with Node.js. There is a lot of talk about the benefits of using the same language both client and server side, and I'm not getting it. I could understand if you want to mirror the entire state of a web application on both client and server but struggling to find other wins... Workflow efficiency? I'm trying to understand why client/server language parity is considered to be a holy grail. Why does client/server language parity matter in software development?

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• How to end a relationship with a client without pissing them off?

  - by thesam18888

  Here's my situation: I'm a freelancing student and I was working on a software project for a client over the summer holidays of 2010. At the time I completed the application, tested it on my machine, delivered it to the client and went back to University. However the client is not completely satisfied with the product and apparently has found a couple of bugs with it. Ever since I went back to Uni, they have been chasing me up and asking me to spend some time to fix the bugs. I have explained that this is simply not possible as I am extremely busy with my Uni work and cannot afford to spare my time for anything else. The client is getting increasingly pissed off and have been chasing me by calling during lectures at evenings and even asking me if I could go over to their place over the weekend to talk about this. This is in turn pissing me off as well because they're essentially asking me to give up my education so that I could help them out by fixing bugs. I go to Uni 5 days a week, 9-6 and feel it is unreasonable for them to call me during evenings and to ask me to work over weekends etc. I would like to end my relationship with this client but would like to do it amicably without pissing them off. How can I do this? I really wish they would just find someone else but I was charging them piss-poor rates so I think they don't want to go to anyone else because they would have to pay more. EDIT The application does not seem to work perfectly on their machine. I had tested it extensively on my machine and it seemed to work fine. I am not sure what exactly is causing it to not work. I was paid a very low amount and it was on an hourly basis. e.g. I would send an invoice saying I worked on this for x amount of hours and they would pay me for it. Apart from the work itself, I have not charged them for all the time spent sending e-mails back and forth, phone calls, visits to their place etc. I would really like to end all my dealings with this client right away.

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