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• Increased CF JVM max heap size and now CF service will not start

  - by Erik Vold

  So I went in to ColdFusion Administrator and increased my CF JVM max heap size, then I was told I would need to restart the service, so I stopped the service, and then tried to start it again and got the following error message: Windows could not start the ColdFusion 8 Application Server on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 2. So I went to the Event Viewer application, then took a look at the Application log and saw an error that said: The ColdFusion 8 Application Server service could not be started. Check the server "coldfusion" log files for more information. So I went to my ColdFusion logs directory opened the server.log log file and I don't see anything useful in there or any of the other log files.. Any idea how I can change the JVM heap size back to what it was so that I can start CF again?

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• Making an AI walk on a NavigationMesh (2D/Top-Down game)

  - by Lennard Fonteijn

  For some time I have been working on a framework which should make it possible to generate 2D levels based on a set of rules specified by level designers. You can read more about it here as I won't go into details: http://www.jorisdormans.nl/article.php?ref=engineering_emergence Anyway, I'm now at the point of putting the framework to use and have trouble coming up with a solution for AI. I decided to implement a NavigationMesh in the generated levels as I already have that information to start with. Consider the following image (borrowed from http://www.david-gouveia.com/pathfinding-on-a-2d-polygonal-map/): When I run A* on the NavigationMesh, the red path would be suggested when I want to go from point A to B (either direction). However, I don't want my AI to walk that path directly and clipping corners, I'd rather want them to follow the more logical black path. How would I go about going from the Red path to the Black path, are there any algorithms for this. Which steps do I take? Is A* the proper solution for this at all? For some additional information: The proof-of-concept game is a 2D top-down game written in C#, but examples/references in any language are welcome!

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• Crystal Report 2010 Hosting Has Been Supported by ASPHostPortal

  - by mbridge

  This is the press release from ASPHostPortal and I see that they have supported Crystal Report 2010. For the complete information, please read this press release. :-)   ASPHostPortal is a premiere web hosting company that specialized in Windows and ASP.NET-based hosting. Now, ASPHostPortal.com supports the new Crystal Report 2010 Hosting. For more information about this new product, please visit ASPHostPortal official website at http://www.asphostportal.com or http://asphostportal.com/Cheap-Crystal-Report-2010-Hosting.aspx. Crystal Reports is a business intelligence application used to design and generate reports from a wide range of data sources. Several other applications, such as Microsoft Visual Studio, bundle an OEM version of Crystal Reports as a general purpose reporting tool. Crystal Reports became the de facto standard report writer when Microsoft released it with Visual Basic. "ASPHostPortal has again proved its existence in hosting industry with the launch of the new Crystal Report 2010 Hosting," said Dean Thomas, General Manager of ASPHostPortal. "Crystal Reports 2010 is a powerful, dynamic, actionable reporting solution that helps you design, explore, visualize, and deliver reports via the web or embedded in enterprise applications. It enables end users to consume reports with stunning visualizations, conduct on-report business modelling, and execute decisions instantly from the report itself—reducing dependency on IT and developers." "Get a clearer view of your business performance with our industry-leading report designer and visualization combined solution. You'll be able to create highly formatted reports with what-if scenario models, interactive dashboards and charts," said Chris Thompson, Sales Manager ASPHostPortal. "Here you can see the demonstration of Crystal Report 2010, http://crystalreportdemo.asphostportal.com."

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• Social Analytics in your current data

  - by Dan McGrath

  By now everyone is aware of the massive boom in social-networking (Twitter, Facebook, LinkedIn) and obviously a big part of its business model revolves around being able to mine this data to create information that can be used to make money for someone. Gartner has identified 'Social Analytics' as one of the top 10 strategic technologies for 2011. Has anyone looked at their existing data structures to determine if they could extract a social graph and then perform further data mining against this? How does it fit in with your other strategic development strategies? What information are you trying to extract from the data? Take for example, a bank. They could conceivably determine a social graph through account relationships and transactions. Obviously there would be open edges on the graph where funds enter/leave the institute, but that shouldn't detract from the usefulness of the data. I'm looking for actual examples with the answers, as well as why/how they did it. References to other sites will be greatly appreciated. Note: I'm not at all referring to mining data out of actual social networks.

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• Does JBoss Support Comets

  - by Ankur

  Does JBoss support Comets, if so do you know where I can get more information.

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• What is Causing this IIS 7 Web Service Sporadic Connectivity Error?

  - by dpalau

  On sporadic occasions we receive the following error when attempting to call an .asmx web service from a .Net client application: "The underlying connection was closed: A connection that was expected to be kept alive was closed by the server. Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host." By sporadic I mean that it might occur zero, once every few days, or a half-dozen times a day for some users. It will never occur for the first web service call of a user. And the subsequent (usually the same) call will always work immediately after the failure. The failures happen across a variety of methods in the service and usually happens between 15-20 seconds (according to the log) from the time of the request. Looking in the IIS site log for the particular call will show one or the other of the following windows error codes: 121: The semaphore timeout period has elapsed. 1236: The network connection was aborted by the local system. Some additional environment details: Running on internal network web farm consisting of two servers running IIS7 on Windows Server 2008 OS. These problems did not occur when running in an older IIS6 web farm of three servers running on Windows Server 2003 (and we use a single IIS6/2003 instance for our development and staging environments with no issues). EDIT: Also, all of these server instances are VMWare virtual machines, not sure if that is a surprise anymore or not. The web service is a .Net 2.0/3.5 compiled .asmx web service that has its own application pool (.Net 2.0, integrated pipeline). Only has Windows Authentication enabled. We have another web service on the farm that uses the same physical path as the primary service, the only difference being that Basic Authentication is enabled. This is used for a portion of our ERP system. Have tried using the same and different application pool - no effect on the error. This site isn't hit as often as the primary site and has never had an error. As mentioned, the error will only happen when called from the .Net client - not from other applications. The client application is always creating a new web service object for each request and setting the service credentials to System.Net.CredentialCache.DefaultCredentials. The application is either deployed locally to a client or run in a Citrix server session. Those users running in Citrix doesn't seem to experience the issue, only locally deployed clients. The Citrix servers and the web farm are located in the same physical location and are located in the same IP range (10.67.xx.xx). Locally deployed clients experiencing the error are located elsewhere (10.105.xx.xx, 10.31.xx.xx). I've checked the OS logs to see if I can see any problems but nothing really sticks out. EDIT: Actually, I myself just ran into the error a little bit ago. I decided to check out the logs again and saw that there was a Security log entry of "Audit Failure" at the 'same' time (IIS log entry at 1:39:59, event log entry at 1:39:50). Not sure if this is a coincidence or not, I'll have to check out the logs of previous errors. I'm probably grasping for straws but the details: Log Name: Security Source: Microsoft-Windows-Security-Auditing Date: 7/8/2009 1:39:50 PM Event ID: 5159 Task Category: Filtering Platform Connection Level: Information Keywords: Audit Failure User: N/A Computer: is071019.<**.net Description: The Windows Filtering Platform has blocked a bind to a local port. Application Information: Process ID: 1260 Application Name: \device\harddiskvolume1\windows\system32\svchost.exe Network Information: Source Address: 0.0.0.0 Source Port: 54802 Protocol: 17 Filter Information: Filter Run-Time ID: 0 Layer Name: Resource Assignment Layer Run-Time ID: 36 I've also tried to use Failed Request Tracing in IIS7 but the service call never actually gets to where FRT can capture it (even though the failure is logged in the web service log). The network infrastructure group said they checked out the DNS and any NIC settings are correct so there is no 'flapping'. Everything pans out. I'm not sure that they checked out any domain controller servers though to see if that could be an issue. Any ideas? Or any other debugging strategies to get to the bottom of this? I'm just the developer in charge of the software and don't really have the knowledge on what to investigate from the networking side of things - although it does sound like a networking issue to me based on what is happening. Thanks in advance for any help.

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• Oracle OpenWorld Series: Fusion Middleware for Enterprise Applications

  - by Michelle Kimihira

  Continuing from Tuesday’s Oracle OpenWorld Series: Best of Oracle Fusion Middleware blog, let’s focus on what Middleware sessions to attend if you are an Enterprise Applications customer. This Focus On document provides you a roadmap of must-attend sessions and demos. We also have a great line up of customers participating in Fusion Middleware sessions targeted to Enterprise Applications customers. Here are a few: Monday, 10/1 1:45 PM – 2:45 PM Intuit and Qualcomm join  CON9470 – Best Practices for Realizing Greater Returns from Oracle Fusion Middleware Projects Moscone West, 3003 Wednesday, 10/3 10:15 AM – 11:15 AM Cognizant joins CON9506 – Oracle Exalogic: The Best Choice for Running Your Applications Moscone West, 3003 Wednesday, 10/3 5:00 PM – 6:00 PM Ingersoll Rand joins CON9047 – Efficiently Scaling Oracle E-Business Suite on Oracle Exadata and Oracle Exalogic Moscone West, 2016 Thursday, 10/4 12:45 PM – 1:45 PM Allegis Group joins CON9048 – Harness the Power of Oracle Exadata and Oracle Exalogic with PeopleSoft Applications Moscone West, 3011 Additional Information ·         Relevant Blogs: Oracle OpenWorld Countdown Begins ,  Best of Oracle Fusion Middleware, Oracle OpenWorld Blog ·         Focus On Docs: Best of Oracle Fusion Middleware, Fusion Middleware for Enterprise Applications ·         Product Information on Oracle.com: Oracle Fusion Middleware ·         Subscribe to our regular Fusion Middleware Newsletter ·         Follow us on Twitter and Facebook

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• best cloud hosting services and their cost

  - by mathew

  Hi anybody has information regarding best cloud hosting available and their rates?? looking for Apache+PHP+MySQL compatibility

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• ADF sessions at UKOUG conference by Grant Ronald

  - by JuergenKress

  For those in the UK, or those who have a few travel dollars left in their budget I just wanted to hi-light a couple of reasons you might want to present to your management as to why you should attend the UKOUG conference this year to get your ADF fill. Firstly, there are three days packed with the ADF content from the brightest minds in ADF-land. In no particular order, some of the stand out sessions for me will be: Duncan Mills presenting a keynote on the Future of Oracle's Fusion Development Luc Bors will be demoing ADF Mobile Frank Nimphius will be giving a tour around JDeveloper 12c Steven Davelaar of JHeadstart fame will be giving an insight on task flows and ADF Faces. Aino Andriessen will focus on build and deployment Frank Houweling will tell us how he can make your ADF application run 70% faster Chris Muir will give a masterclass on ADF architecture. In addition, the UKOUG will be running a 3 days of ADF Mobile hands-on sessions. Mobile is just about the hottest development topic at this time so this is an ideal opportunity to roll up your sleeves and build on-device mobile applications. There will also be a roundtable discussion on which development tool is right for you, and a roundtable on the strategic importance of ADF. Of course, the conference is not all about ADF; Tom Kyte will be there, Cliff Godwin (SVP who looks after Oracle Applications) and a host of others. This might be a great opportunity to get some ADF education. For more adf information visit Grant Ronald’s blog. WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. BlogTwitterLinkedInMixForumWiki Technorati Tags: ADF,UKOUG,conference,WebLogic Community,Oracle,OPN,Jürgen Kress

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• umount bind of stale NFS

  - by Paul Eisner

  i've got a problem removing mounts created with mount -o bind from a locally mounted NFS folder. Assume the following mount structure: NFS mounted directory: $ mount -o rw,soft,tcp,intr,timeo=10,retrans=2,retry=1 \ 10.20.0.1:/srv/source /srv/nfs-source Bound directory: $ mount -o bind /srv/nfs-source/sub1 /srv/bind-target/sub1 Which results in this mount map $ mount /dev/sda1 on / type ext3 (rw,errors=remount-ro) # ... 10.20.0.1:/srv/source on /srv/nfs-source type nfs (rw,soft,tcp,intr,timeo=10,retrans=2,retry=1,addr=10.20.0.100) /srv/nfs-source/sub1 on /srv/bind-target/sub1 type none (rw,bind) If the server (10.20.0.1) goes down (eg ifdown eth0), the handles become stale, which is expected. I can now un-mount the NFS mount with force $ umount -f /srv/nfs-source This takes some seconds, but works without any problems. However, i cannot un-mount the bound directory in /srv/bind-target/sub1. The forced umount results in: $ umount -f /srv/bind-target/sub1 umount2: Stale NFS file handle umount: /srv/bind-target/sub1: Stale NFS file handle umount2: Stale NFS file handle Here is a trace http://pastebin.com/ipvvrVmB I've tried umounting the sub-directories beforehand, find any processes accessing anything within the NFS or bind mounts (there are none). lsof also complains: $ lsof -n lsof: WARNING: can't stat() nfs file system /srv/nfs-source Output information may be incomplete. lsof: WARNING: can't stat() nfs file system /srv/bind-target/sub1 (deleted) Output information may be incomplete. lsof: WARNING: can't stat() nfs file system /srv/bind-target/ Output information may be incomplete. I've tried with recent stable Linux kernels 3.2.17, 3.2.19 and 3.3.8 (cannot use 3.4.x, cause need the grsecurity patch, which is not, yet, supported - grsecurity is not patched in in the tests above!). My nfs-utils are version 1.2.2 (debian stable). Does anybody have an idea how i can either: force the un-mount some other way? (any dirty trick is welcome, data loss or damage neglible at this point) use something else instead of mount -o bind? (cannot use soft links, cause mounted directories will be used in chroot; bindfs via FUSE is far to slow to be an option) Thanks, Paul Update 1 With 2.6.32.59 the umount of the (stale) sub-mounts work just fine. It seems to be a kernel regression bug. The above tests where with NFSv3. Additional tests with NFSv4 showed no change. Update 2 We have tested now multiple 2.6 and 3.x kernels and are now sure, that this was introduced in 3.0.x. We will fille a bug report, hopefully they figure it out.

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• Web services, J2EE, Spring, DB integration project ideas - maybe data mining related?

  - by saral jain

  I am a graduate Computer Science student (Data Mining and Machine Learning) and have good exposure to core Java (3 years). I have read up on a bunch of stuff on the following topics: Design patterns, J2EE Web services (SOAP and REST), Spring, and Hibernate Java Concurrency - advanced features like Task and Executors. I would now like to do a project combining this stuff -- over my free time of course -- to get a better understanding of these things and to kind of make an end to end software (to learn the best design principles etc + SVN, maven). Any good project ideas would be really appreciated. I just want to build this stuff to learn, so I don't really mind re-inventing the wheel. Also, anything related to data mining would be an added bonus as it fits with my research but is absolutely not necessary since this project is more to learn to do large scale software development.

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• Google earth will not reinstall

  - by chad

  I was trying to perform the the fix found at this link http://www.omgubuntu.co.uk/2012/01/how-to-make-google-earth-look-native-in-ubuntu It requires you to delete certain files from the /opt/google/earth/free folder and then add some new ones that you download. I deleted the files but the links to download the new ones were unusable. I was using gksudo nautilus so trash was disabled meaning I could not restore the files I had deleted. I the tried to go to the Google Earth website and reinstall it. I downloaded the .deb but when I tried to install it it gav me an error message saying "cannot install ia32-libs" I tried installing this via terminal and it gave me an error message saying chad@chad-Lenovo-G570:~$ sudo apt-get install ia32-libs [sudo] password for chad: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: ia32-libs : Depends: ia32-libs-multiarch E: Unable to correct problems, you have held broken packages. How do I fix this? Now I am stuck without a functioning Google Earth. How can I fix this?

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• CSO Summit @ Executive Edge

  - by Naresh Persaud

  If you are attending the Executive Edge at Open World be sure to check out the sessions at the Chief Security Officer Summit. Former Sr. Counsel for the National Security Agency, Joel Brenner ,  will be speaking about his new book "America the Vulnerable". In addition, PWC will present a panel discussion on "Crisis Management to Business Advantage: Security Leadership". See below for the complete agenda. TUESDAY, October 2, 2012 Chief Security Officer Summit Welcome Dave Profozich, Group Vice President, Oracle 10:00 a.m.–10:15 a.m. America the Vulnerable Joel Brenner, former Senior Counsel, National Security Agency 10:15 a.m.–11:00 a.m. The Threats are Outside, the Risks are Inside Sonny Singh, Senior Vice President, Oracle 11:00 a.m.–11:20 a.m. From Crisis Management to Business Advantage: Security Leadership Moderator: David Burg, Partner, Forensic Technology Solutions, PwC Panelists: Charles Beard, CIO and GM of Cyber Security, SAIC Jim Doggett, Chief Information Technology Risk Officer, Kaiser Permanente Chris Gavin, Vice President, Information Security, Oracle John Woods, Partner, Hunton & Williams 11:20 a.m.–12:20 p.m. Lunch Union Square Tent 12:20 p.m.–1:30 p.m. Securing the New Digital Experience Amit Jasuja, Senior Vice President, Identity Management and Security, Oracle 1:30 p.m.–2:00 p.m. Securing Data at the Source Vipin Samar, Vice President, Database Security, Oracle 2:00 p.m.–2:30 p.m. Security from the Chairman’s Perspective Jeff Henley, Chairman of the Board, Oracle Dave Profozich, Group Vice President, Oracle 2:30 p.m.–3:00 p.m.

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• Ask a DNS server what sites it hosts - and how to possibly prevent misuse

  - by Exit

  I've got a server which I host my company website as well as some of my clients. I noticed a domain which I created, but never used, was being attacked by a poke and hope hacker. I imagine that the hacker collected the domain from either hitting my DNS server and requesting what domains are hosted. So, in the interest of prevention and better server management, how would I ask my own DNS server (Linux CentOS 4) what sites are being hosted on it? Also, is there a way to prevent these types of attacks by hiding this information? I would assume that DNS servers would need to keep some information public, but I'm not sure if there is something that most hosts do to help prevent these bandwidth wasting poke and hope attacks. Thanks in advance.

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• Oracle Buys Compendium - Adds Leading Content Marketing Platform to Oracle Eloqua Marketing Cloud

  - by Richard Lefebvre

  News Facts Oracle today announced that it has acquired Compendium, a cloud-based content marketing provider that helps companies plan, produce and deliver engaging content across multiple channels throughout their customers’ lifecycle. Compendium’s data-driven approach aligns relevant content with customer data and profiles to help companies more effectively attract prospects, engage buyers, accelerate conversion of prospects to opportunities, increase adoption, and drive revenue growth. Compendium’s innovative solution complements Oracle’s industry leading Eloqua Marketing Cloud which is a part of Oracle’s comprehensive Customer Experience solution. The combination of Oracle Eloqua Marketing Cloud with Compendium is expected to enable modern marketers to align persona-based content to customers’ digital body language to increase “top-of-funnel” customer engagement, improve the quality of sales leads, realize the highest return on their marketing investment, and increase customer loyalty. More information on this announcement can be found at http://www.oracle.com/compendium. Supporting Quotes “As customers increasingly access information through online and mobile channels, the buying process is shifting from sales-driven to marketing-driven. Now, more than ever, marketers are challenged to deliver relevant and engaging content across multiple channels and throughout the customer lifecycle,” said Thomas Kurian, Executive Vice President, Oracle Development. “By adding Compendium’s content marketing platform to Oracle Eloqua Marketing Cloud, customers will be able to capture more prospects, improve the customer experience and drive top line revenue.” “Oracle Eloqua Marketing Cloud is uniquely positioned to capture a prospect’s digital body language to help companies know each buyer’s demographics, behaviors and influencers,” said Chris Baggott, Compendium CEO. “By combining this buyer profile with Compendium’s data-driven content marketing platform, marketers will be able to deliver the right content, to the right individual across the right channel at the right time. We are very excited to now be a part of the industry’s most complete marketing cloud solution, giving us a global stage to deliver innovative content marketing solutions.” Supporting Resources About Oracle and Compendium General Presentation Customer and Partner Letter FAQ

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• Plymouth package broken... Can I safely remove it? Other solution to repare it?

  - by Julien Gorenflot

  I have a broken package... So far nothing horrible. The problem is that it is Plymouth, and it seems that if I remove it, I will remove half of the packages of my system... So here is my question: if I actually remove, or even purge plymouth; will I at least have a terminal left after it to reinstall it? Or am I definitely doomed? Just to illustrate what I say; here is the result of an apt-get --reinstall install plymouth: julien@julien-desktop:~$ sudo apt-get --reinstall install plymouth Reading package lists... Done Building dependency tree Reading state information... Done Reinstallation of plymouth is not possible, it cannot be downloaded. You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: plymouth : Depends: libdrm-nouveau1 (>= 2.4.11-1ubuntu1~) but it is not installable Recommends: plymouth-themes-all but it is not installable E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). or an apt-get -f install (well basically it is the same) julien@julien-desktop:~$ sudo apt-get -f install [sudo] password for julien: Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... failed. The following packages have unmet dependencies: plymouth : Depends: libdrm-nouveau1 (>= 2.4.11-1ubuntu1~) but it is not installable Recommends: plymouth-themes-all but it is not installable E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. E: Unable to correct dependencies julien@julien-desktop:~$ Any idea would be very welcome...

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• Stereo images rectification and disparity: which algorithms?

  - by alessandro.francesconi

  I'm trying to figure out what are currently the two most efficent algorithms that permit, starting from a L/R pair of stereo images created using a traditional camera (so affected by some epipolar lines misalignment), to produce a pair of adjusted images plus their depth information by looking at their disparity. Actually I've found lots of papers about these two methods, like: "Computing Rectifying Homographies for Stereo Vision" (Zhang - seems one of the best for rectification only) "Three-step image recti?cation" (Monasse) "Rectification and Disparity" (slideshow by Navab) "A fast area-based stereo matching algorithm" (Di Stefano - seems a bit inaccurate) "Computing Visual Correspondence with Occlusions via Graph Cuts" (Kolmogorov - this one produces a very good disparity map, with also occlusion informations, but is it efficient?) "Dense Disparity Map Estimation Respecting Image Discontinuities" (Alvarez - toooo long for a first review) Anyone could please give me some advices for orienting into this wide topic? What kind of algorithm/method should I treat first, considering that I'll work on a very simple input: a pair of left and right images and nothing else, no more information (some papers are based on additional, pre-taken, calibration infos)? Speaking about working implementations, the only interesting results I've seen so far belongs to this piece of software, but only for automatic rectification, not disparity: http://stereo.jpn.org/eng/stphmkr/index.html I tried the "auto-adjustment" feature and seems really effective. Too bad there is no source code...

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• Should you disable page file with SSD?

  - by Pyrolistical

  I've been reading http://serverfault.com/questions/23621/any-benefit-or-detriment-from-removing-a-pagefile-on-an-8gb-ram-machine, and it has a lot of great information. But assuming you have more than enough ram, I think page file should be disabled on SSD to extend the life time. I know you would lose the core dump on crash, but not many people need that information. From my understand without a page file as you reach the limit of your ram that might trigger thrashing on disk. But for SSDs there is no concept of thrashing, reads are fast. What do you guys think?

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• Aruba Wireless Controller 200 and AP70 manual

  - by techie

  I have an Aruba wireless system that is currently in use but there is no documentation from the previous person in charge. I have no manuals or login information for the wireless controllers and APs. I checked the Aruba website and you need to register to access the support information but registration isn't instant and takes several days. I've waited for quite a while now and have tried googling and checking the Aruba forums but have found no indication of a manual. What I really need is the ability to reset the controller and APs so I can access the device with the default username and password. There is no reset button on this device so I have no idea how you go about resetting the controller and APs. Hm it seems I can't create a new tag as a new user. If possible can someone add an "Aruba" tag?

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• Is this kind of design - a class for Operations On Object - correct?

  - by Mithir

  In our system we have many complex operations which involve many validations and DB activities. One of the main Business functionality could have been designed better. In short, there were no separation of layers, and the code would only work from the scenario in which it was first designed at, and now there were more scenarios (like requests from an API or from other devices) So I had to redesign. I found myself moving all the DB code to objects which acts like Business to DB objects, and I've put all the business logic in an Operator kind of a class, which I've implemented like this: First, I created an object which will hold all the information needed for the operation let's call it InformationObject. Then I created an OperatorObject which will take the InformationObject as a parameter and act on it. The OperatorObject should activate different objects and validate or check for existence or any scenario in which the business logic is compromised and then make the operation according to the information on the InformationObject. So my question is - Is this kind of implementation correct? PS, this Operator only works on a single Business-wise Operation.

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• xna download website source code

  - by Emre Canbazoglu

  I have to download the html code of a web site during the game. I am taking the poster url of a movie from the imdb web site by scrapping the html ( also other informations ). I have to do the download process many times during the game for different movies. I can download and scrap the html but downloading the html takes too much time and it causes the game to slow down(freeze while downloading). How can I solve this problem? My one approach is to download and scrap all the information and store them in a database before the game and during the game access this information from the database. I think this will work properly but that is not what I exactly want. It would be better if it is dynamic. I also thought of using multi-threading but I am a bit confused about how to implement threading in xna. I read some articles about it but it is not so clear. I mean when should I start the thread and what about the update function etc. I need your help guys

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• How does a self-taught programmer know when he's ready to look for a job?

  - by user645663

  I've been studying computer science on my own for a few years, but I don't personally know anyone who programs. I was wondering how you know when you're ready to start looking for a job? Personally I'm pretty good with Python and Scheme. I know basic data structures and big O. I've written a Scheme interpreter in C and a couple in Scheme and a few other small/medium sized programs. I have a blog, which I'm starting to transfer my knowledge into to be able to "prove" I know how to code. Am I ready to start looking? And on a related note, am I going to be able to get a job with no experience/education?

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• Security in a private web service

  - by Oni

  I am developing a web site and a web service for a small on-line game. Technically, I'll be using Express (node.js) and MongoDB+Redis for the databases. This the structure I came up with: One Express server that will server as the Web Service. This will connect to the databases. One Express server that will provide the web site. It will connect to the Web Service to retrieve and push the information. iOS and Android application will be able to interact with the WebService. Taking into account: It is a small game. The information transferred is not critical. There will NOT be third party applications. At least for the moment. My concern is about which level of security I should use in each of the scenarios: Security of the user playing through web browser Security of the applications and the Web Server connecting to the WS. I have take a look at the different options and: OAuth and/or Https is too much for this scenario, isn't it? Will be a good option to hash the user and password with MD5(or similar) and some salt? I would like to get some directions and investigate by my own rather than getting a response like "you should you use this node.js module..." Thanks in advance,

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• bind9 dns proxy

  - by Zulakis

  We are offering multiple SSL-enabled services in our local network. To avoid certificate-warnings we bought certificates for server.ourdomain.tld and firewall.ourdomain.tld. We now created a zone in our local DNS-server in which we pointed the hosts to the corresponding private-ips. Now, each time another record for ourdomain.tld, like for example www.ourdomain.tld or alike are changed, we need to update it on both our public-dns-server AND the local dns-server. I would like our local bind-dns to serve all the information from our public-dns but serve different information for these 2 hosts. I know I could possibly have our private-ips in our public-dns but I don't want that for security reasons. The internet dns-server is being managed by a third party, while we have full control of the intranet one. Because of this I am looking for a solution which lets the intranet retrieve the records from the internet one.

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• Persistent "held broken packages" error

  - by stoplan

  sudo apt-get update && sudo apt-get install netflix-desktop gives the error The following packages have unmet dependencies: netflix-desktop : Depends: wine-browser-installer but it is not going to be installed E: Unable to correct problems, you have held broken packages. but dpkg --get-selections | grep hold shows nothing. I'm running 12.04 64-bit. I've followed the directions in How do I resolve unmet dependencies?: Confirmed that main, universe, restricted and multiverse software sources are enabled sudo apt-get clean sudo apt-get -f install (returning '0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.') sudo dpkg --configure -a sudo apt-get -f install (again '0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.) sudo apt-get -u dist-upgrade (0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.) used Y PPA Manager to check for duplicate ppas (none found) [Edit] I have had the same error with other packages. Here's the output requested by Alaa: sudo apt-get install wine-browser-installer Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine-browser-installer : Depends: wine-compholio (= 1.5.19~precise1) E: Unable to correct problems, you have held broken packages.

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