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• Kubuntu 11.10 Lot of Networking problems

  - by Cobraone

  Since I upgrade to 11.10 I have a lot of problems with KDE. First of all there are problems in configuring a static IP address. Just to explain @home I have a normal fiber ADSL and I use a DHCP. When I go to a customer I must insert a static IP address. With ifconfig everything seems ok but there is something wrong in searching DNS names. (I have installed Ubuntu and was going ok again). Now I Have reinstalled again Kubuntu 11.10 and I have the same problem in addition today I have discovered that if I connect to a network in another customer office the desktop freezes and I could only switch between windows with alt+tab. No FN key or right click to open run command works. So i unplugged network (configuration is just DHCP here) and tried on another position in office. It was the same. My Laptop freezes when connected, a fedora 14 of a friend works. So I decided to connect my Galaxy S II as USB network device. Everything is ok for like 3 minutes. When I noticed a little loss of signal again the desktop freezes and i must work (like now) just switching between windows with alt+tab). Additional information: Unplugging network or restarting it via Konsole does not not solve the freezing problem. Every time I must open a console and reboot. Any idea of what tests to do ? Just a recommendation: If I must post here logs or something else please guide me. I use Linux since Ubuntu 9 but I am not an "expert".

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• LDoms with Solaris 11

  - by Orgad Kimchi

  Oracle VM Server for SPARC (LDoms) release 2.2 came out on May 24. You can get the software, see the release notes, reference manual, and admin guide here on the Oracle VM for SPARC page. Oracle VM Server for SPARC enables you to create multiple virtual systems on a single physical system.Each virtual system is called alogical domain and runs its own instance of Oracle Solaris 10 or Oracle Solaris 11. The version of the Oracle Solaris OS software that runs on a guest domain is independent of the Oracle Solaris OS version that runs on the primary domain. So, if you run the Oracle Solaris 10 OS in the primary domain, you can still run the Oracle Solaris 11 OS in a guest domain, and if you run the Oracle Solaris 11 OS in the primary domain, you can still run the Oracle Solaris 10 OS in a guest domain In addition to that starting with the Oracle VM Server for SPARC 2.2 release you can migrate guest domain even if source and target machines have different processor type. You can migrate guest domain from a system with UltraSPARC  T2+ or SPARC T3 CPU to a system with a SPARC T4 CPU.The guest domain on the source and target system must run Solaris 11 In order to enable cross CPU migration.In addition to that you need to change the cpu-arch property value on the source system. For more information about Oracle VM Server for SPARC (LDoms) with Solaris 11 and  Cross CPU Migration refer to the following white paper

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• How is it possible for SSD's drives to have such a good latency?

  - by tigrou

  First time i read some information about SSD's, i was surprised to learn they internally use NAND flash chips. This kind of memory is generally slow (low bandwidth) and have high latency while SSD's are just the opposite. But here is how it works : SSD drives increase their bandwidth by using several NAND flash chips in parallel. In other words, they do some data striping (aka RAID0) across several chips (done by the controller). What i don't understand is how SSD's drives have such a low latency, whereas they are using NAND chips? (or at least lot better than what a typical single NAND chip would do) EDIT: I think under-estimate NAND chip capabilities. USB drives, while powered by NAND's are mostly limited by USB protocol (which have a pretty high latency) and the USB controller. That explain their poor performance in some cases.

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• How to populate a private container for unit test?

  - by Sardathrion

  I have a class that defines a private (well, __container to be exact since it is python) container. I am using the information within said container as part of the logic of what the class does and have the ability to add/delete the elements of said container. For unit tests, I need to populate this container with some data. That date depends on the test done and thus putting it all in setUp() would be impractical and bloated -- plus it could add unwanted side effects. Since the data is private, I can only add things via the public interface of the object. This run codes that need not be run during a unit test and in some case is just a copy and paste from another test. Currently, I am mocking the whole container but somehow it does not feel that elegant a solution. Due to Python mocking frame work (mock), this requires the container to be public -- so I can use patch.dict(). I would rather keep that data private. What pattern can one use to still populate the containers without excising the public method so I have data to test with? Is there a way to do this with mock' patch.dict() that I missed?

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• Informing GUI objects about screen size - Designing

  - by Mosquito

  I have a problem with designing classes for my game which I create. In my app, there is: class CGame which contains all the information about game itself, e.g. screen width, screen height, etc. In the main() function I create a pointer to CGame instance. class CGUIObject which includes fields specifying it's position and draw() method, which should know how to draw an object according to screen size. class CGUIManager which is a singleton and it includes a list of CGUIObject's. For each object in a list it just calls draw() method. For clarity's sake, I'll put some simple code: class CGame { int screenWidth; int screenHeight; }; class CGUIObject { CPoint position; void draw(); // this one needs to know what is a screen's width and height }; class CGUIManager // it's a singleton { vector<CGUIObject*> guiObjects; void drawObjects(); }; And the main.cpp: CGame* g; int main() { g = new CGame(); while(1) { CGUIManager::Instance().drawObjects(); } return 0; } Now the problem is, that each CGUIObject needs to know the screen size which is held by CGame, but I find it very dumb to include pointer to CGame instance in every object. Could anyone, please, tell me what would be the best approach to achieve this?

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• Bootmgr is missing for windows xp

  - by user1167074

  I know that there are so many posts on this subject but none of them worked for me. I have Ubuntu on my machine and I would like to install windows xp. As my cd/dvd reader does not work, I made a bootable usb from iso image using UNETBOOTIN, but when I try to boot in through USB it says "BOOTMGR is Missing". I have searched a lot but could not find any solution to it. Please note that my hard disk uses ext4 format and my bootable drive uses NTFS. I have set the Boot Sequence as USB Drive in BIOS. Please let me know if you need any additional information to fix this. Thanks

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• Developing Good Contacts

  There are millions of was you can develop good networking contacts, but you must be open to meeting new people. In the information technology industry, everyone is a potential client. So any place you can meet people is a good place to develop good networking contacts. Here are a few examples Online Discussion Forums – Online forums are a great place to show your knowledge of a subject and allow you to meet people that share your same interests Blog Networks – Allowing others to read your thoughts and comment on them. In addition, you can so the same on other blogs with in the network. Networking Sites – Networking sites are a great way to find new contacts based on your current contacts because you can share common friends, and possibly common interests Volunteering – Volunteering is a great way to meet new contacts, and you can help others at the same time Civic Organizations – Participating in organizations or clubs like the Lions Club, Rotary Club, and religious affiliated organizations because you can meet people of all walks of life, and can share and contribute ideas for common goals Chamber of Commerce – This is another great way to meet contacts especially if you are interested in starting your own business. The chamber is a great way to meet other business oriented people who are always looking to collaborate and improve their business. Family and Friends – Family and friends are another excellent to meet new contacts, because they can always be on the lookout for opportunities for you. For example your brother hears that a friend of his needs a new website, so he gives him your number and highly recommends you. This is really good because the potential client is looking for the service you can perform, and you where already highly recommend.

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• How to check the OS is running on bare metal and not in virtualized environment created by BIOS?

  - by Arkadi Shishlov

  Is there any software available as a Linux, *BSD, or Windows program or boot-image to check (or guess with good probability) the environment an operating system is loaded onto is genuine bare metal and not already virtualized? Given recent information from various sources, including supposed to be E.Snowden leaks, I'm curious about the security of my PC-s, even about those that don't have on-board BMC. How it could be possible and why? See for example Blue Pill, and a number of papers. With a little assistance from network card firmware, which is also loadable on popular card models, such hypervisor could easily spy on me resulting in PGP, Tor, etc. exercises futile.

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• Oracle Open World 2012 Call For Papers

  - by Lionel Dubreuil

  At Oracle OpenWorld, more than a thousand people demonstrate their mastery and expertise by leading sessions on a vast array of Oracle technologies and products. Now’s the time to submit your AIA or OER success story presentation abstract for review by the selection panel. Don’t delay—submit your abstract now as the Call for Papers is open through next Monday, April 9th. The competition is strong: roughly 18% of entries are accepted each year from more than 3,000 submissions. Review panels are made up of experts both internal and external to Oracle. Successful submissions often (but not exclusively) focus on customer successes, how-tos, or technical topics. What’s in it for you? Recognition, for one thing. Accepted sessions are publicized in the content catalog, which goes live in mid-June, and sessions given by external speakers often prove the most popular. Plus, accepted speakers get a complimentary pass to Oracle OpenWorld with access to all sessions and networking events-that could save you up to $2,595! For more information, please look here: "http://www.oracle.com/openworld/index.html"

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• Performance Testing &ndash; Quick Reference Guide &ndash; Released up on CodePlex

  - by Shawn Cicoria

  Why performance test at all right?  Well, physics still plays a role in what we do.  Why not take a better look at your application – need help, well, the Rangers team just released the following to help: The following has both VS2008 & VS2010 content: http://vstt2008qrg.codeplex.com/ Visual Studio Performance Testing Quick Reference Guide (Version 2.0) The final released copy is here and ready for full time use. Please enjoy and post feedback on the discussion board. This document is a collection of items from public blog sites, Microsoft® internal discussion aliases (sanitized) and experiences from various Test Consultants in the Microsoft Services Labs. The idea is to provide quick reference points around various aspects of Microsoft Visual Studio® performance testing features that may not be covered in core documentation, or may not be easily understood. The different types of information cover: How does this feature work under the covers? How can I implement a workaround for this missing feature? This is a known bug and here is a fix or workaround. How do I troubleshoot issues I am having

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• how to install the IIS in windows 7 ?

  - by prateeksaluja20

  Hello Experts, I have tried to install IIS in My local machine in windows 7.My purpose is to install the IIS & change its Seesion timeout property bcoz I want to increase the Session time out Period.so I went to Control Panel-All Control Panel Items-Programs and Features then clicked Windows features on & off. after that clicked on Internet Information Service then Web Management Tool then IIS Management Console then pressed ok. It installed but when i went to see in Inetpub\wwwroot I got nothing.when i went to see "http:\localhost\" result shown blank page. i tried to search in Google but still i Don't get the answer.so plz help me shortout this problem. Thanx.

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• Group policy doesn't let me execute Chrome

  - by George Katsanos

  Where I work, the admins just migrated us to Windows 7. They gave me admin rights but still, I had to "Run as Administrator" my Google Chrome installation. After I managed to install it, I realized I even have to go through the "Run as Administrator" shortcut every time I have to execute the application. I even edited the properties of the shortcut to check "Always run as Administrator" but nothing changed. The message I get when I'm trying to launch Chrome is "This program is blocked by group policy. For more information contact your system administrator"... Is it something I could work out alone or I have to convince them to change the "policy"?

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• MSSQL 2008 is claiming the firewall is blocking ports even from local machine

  - by Mercurybullet

  I was just hoping to step through a couple queries to see how the temp tables are interacting and I'm getting this message. The windows firewall on this machine is currently blocking remote debugging. Remote debugging requires that the debugging be allowed to receive information from the network.Remote debugging also requires DCOM (TCP port 135) and IPSEC (UDP 4500/UDP500) be unblocked Even when I walked over to the actual machine and tried running the debugger, I'm still getting the same message. Am I missing something or does the debugger try to run remotely even from the local machine? Since this was meant to be just a quick check, I don't need instructions on how to open up the firewall, just hoping there is a way to run the debugger locally instead.

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• Is there a chroot build script somewhere?

  - by Nils

  I am about to develop a little script to gather information for a chroot-jail. In my case this looks (at the first glance) pretty simple: The application has a clean rpm-install and did install almost all files into a sub-directory of /opt. My idea is: Do a find of all binaries Check their library-dependencies Record the results into a list Do a rsync of that list into the chroot-target-directory before startup of the application Now I wonder - ist there any script around that already does such a job (perl/bash/python)? So far I found only specialized solutions for single applications (like sftp-chroot). Update I see three close-votes for the reason "off topic". This is a question that arose because I have to install that ancient piece of software on a server at work. So if you still feel this is off-topic - leave a comment...

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• How can I see how much bandwidth each Apache Virtual Host is using?

  - by pkaeding

  I have Apache set up to serve several Virtual Hosts, and I would like to see how much bandwidth each site uses. I can see how much the entire server uses, but I would like more detailed reports. Most of the things I have found out there are for limiting bandwidth to virtual hosts, but I don't want to do that; I just want to see which sites are using how much bandwidth. This isn't for billing purposes, just for information. Is there an apache module I should use? Or is there some other way to do this?

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• How SSD's drives reduce their latency?

  - by tigrou

  First time i read some information about SSD's, i was surprised to learn they internally use NAND flash chips. This kind of memory is generally slow (low bandwidth) and have high latency while SSD's are just the opposite. But here is how it works : SSD drives increase their bandwidth by using several NAND flash chips in parallel. In other words, they do some data striping (aka RAID0) across several chips (done by the controller). What i don't understand is how SSD's drives managed to reduce latency? (or at least lot better than what a single NAND chip without any controller can do)

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• Debian Squeeze can't install php-pear

  - by Lennier

  I use Debian 6.0.6 sudo apt-get install php-pear results in: 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: initscripts : Breaks: console-setup (< 1.74) but 1.68+squeeze2 is to be installed Breaks: initramfs-tools (< 0.104) but 0.98.8 is to be installed Breaks: nfs-common (< 1:1.2.5-3) but 1:1.2.2-4squeeze2 is to be installed keyboard-configuration : Breaks: console-setup (< 1.71) but 1.68+squeeze2 is to be installed klibc-utils : Breaks: initramfs-tools (< 0.103) but 0.98.8 is to be installed E: Broken packages How can i solve it?

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• More Tables or More Databases?

  - by BuckWoody

  I got an e-mail from someone that has an interesting situation. He has 15,000 customers, and he asks if he should have a database for their data per customer. Without a LOT more data it’s impossible to say, of course, but there are some general concepts to keep in mind. Whenever you’re segmenting data, it’s all about boundary choices. You have not only boundaries around how big the data will get, but things like how many objects (tables, stored procedures and so on) that will be involved, if there are any cross-sections of data (do they share location or product information) and – very important – what are the security requirements? From the answer to these types of questions, you now have the choice of making multiple tables in a single database, or using multiple databases. A database carries some overhead – it needs a certain amount of memory for locking and so on. But it has a very clean boundary – everything from objects to security can be kept apart. Having multiple users in the same database is possible as well, using things like a Schema. But keeping 15,000 schemas can be challenging as well. My recommendation in complex situations like this is similar to a post on decisions that I did earlier – I lay out the choices on a spreadsheet in rows, and then my requirements at the top in the columns. I  give each choice a number based on how well it meets each requirement. At the end, the highest number wins. And many times it’s a mix – perhaps this person could segment customers into larger regions or districts or products, in a database. Within that database might be multiple schemas for the customers. Of course, he needs to query across all customers, that becomes another requirement. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• XML Rules Engine and Validation Tutorial with NIEM

  - by drrwebber

  Our new XML Validation Framework tutorial video is now available. See how to easily integrate code-free adaptive XML validation services into your web services using the Java CAMV validation engine. CAMV allows you to build fault tolerant content checking with XPath that optionally use SQL data lookups. This can provide warnings as well as error conditions to tailor your validation layer to exactly meet your business application needs. Also available is developing test suites using Apache ANT scripting of validations.  This allows a community to share sets of conformance checking test and tools . On the technical XML side the video introduces XPath validation rules and illustrates and the concepts of XML content and structure validation. CAM validation templates allow contextual parameter driven dynamic validation services to be implemented compared to using a static and brittle XSD schema approach.The SQL table lookup and code list validation are discussed and examples presented.Features are highlighted along with a demonstration of the interactive generation of actual live XML data from a SQL data store and then validation processing complete with errors and warnings detection.The presentation provides a primer for developing web service XML validation and integration into a SOA approach along with examples and resources. Also alignment with the NIEM IEPD process for interoperable information exchanges is discussed along with NIEM rules services.The CAMV engine is a high performance scalable Java component for rapidly implementing code-free validation services and methods. CAMV is a next generation WYSIWYG approach that builds from older Schematron coding based interpretative runtime tools and provides a simpler declarative metaphor for rules definition. See: http://www.youtube.com/user/TheCAMeditor

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• Updated Business Activity Monitoring (BAM) Class

  - by Gary Barg

  We have just completed an extensive upgrade to the Business Activity Monitoring course, bringing it up to PS5 level and doing some major rework of content and topic flow. This should be a GREAT course for anyone needing to learn to use BAM effectively to analyze their SOA data. Details of the Course This course explains how to use Oracle BAM to monitor enterprise business activities across an enterprise in real time. You can measure your key performance indicators (KPIs), determine whether you are meeting service-level agreements (SLAs), and take corrective action in real time. Learn To: Create dashboards and alerts using a business-friendly, wizard-based design environment Monitor BPM and BPEL processes Configure drilling, driving, and time-based filtering Create alerts Build applications with a dynamic user interface Manage BAM users and roles In addition to learning Oracle BAM architecture, you learn how to perform administrative tasks related to Oracle BAM. You create and work with the different types of message sources that send data into Oracle BAM. You build interactive, real-time, actionable dashboards, and you configure alerts on abnormal conditions. You learn how to monitor both BPEL and BPM composite applications with Oracle BAM. Lastly, you create and use Oracle BAM data control to build applications with a dynamic user interface that changes based on real-time business events. Registration The Oracle University course page with more course details and registration information, is here. The next scheduled class: Date: 5-Dec-2012 Duration: 3 days Hours: 9:00 AM – 5:00 PM CT Location: Chicago, IL Class ID: 3325708

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• SharePoint 2013 Licensing Simplified

  - by Sahil Malik

  SharePoint 2010 Training: more information Before I begin, let me preface this by saying, I don't work for Microsoft, I don't sell SharePoint, this is merely my understanding of the SharePoint 2013 licensing model. As always, before making any money decisions based on the below, talk to your Microsoft rep. The below is just my understanding, you are responsible for any decision you may take. With that aside, here is how I understand SharePoint 2013 licensing. Note that everything below is for on-prem SharePoint only. Also it goes without saying that you need to purchase windows server and SQL server licenses etc. on top of what you read below. The Basics. You need to buy two things - the SharePoint server, and CALs. SharePoint server comes in SharePoint foundation, standard and enterprise. CALs can be either enterprise or standard, and they can be bought as CALs for SharePoint or a CAL suite which includes exchange and lync. CALs can also be purchased and user CAL or device CAL. Read full article ....

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• I need help with Grub and restoring Windows?

  - by Bob Tahog

  I started out with Windows XP and then I installed Zorin (a sub distro of Ubuntu) and then I installed Ubuntu. This was working great. Then I installed Windows 8 on yet another partition and couldn't get into my other OSs. I asked my tech teacher at school how to fix it and she said just clear the partition that I installed Windows 8 on, so I booted onto a live version of Ubuntu and cleared the Windows 8 partition. Okay then I rebooted and it still went into Windows 8 for some reason. So I got back onto live Ubuntu and it turns out Windows 8 partition didn't clear for some reason so I did it again (and I'm positive it was the Windows 8 partition). I still couldn't fix grub but I needed something out of my XP partition so I mounted it on the live Ubuntu and now all the XP partition have are the folders 'Boot', 'Recovery', 'System Volume Information', 'temp' and the files 'bootmgr', 'BOOTNXT', 'BOOTSECT.BAK' and 'Recovery.txt'. Anybody know how to fix this or what I did wrong? Also, if I try booting from my hard drive it shows the Windows and says 'preparing automatic repair' then 'Diagnosing your PC' then restarts. Any and all help is greatly appreciated.

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• Apache configuration file visualization/testing

  - by Matt Holgate

  Is there a tool available (or a debug mode built into Apache) that will allow me to interactively test and explain an Apache configuration for a given request? In particular, I'd like to be able to see which directives will apply when requesting a specific URL. For example, the output for the URL http://myserver.com/foo/bar/bar.html might look something like: Allow from 192.168.0.3 <-- From <Location /foo/bar> in myserver.com vhost Require valid user <-- From <Directory /var/www/foo> in global configuration Satisfy any <-- From <File bar.html> in global configuration [Background: why do I want this? The apache merging rules for configuration directives are quite complex to get right. It would be great to have a tool which allows you to check that your rules are doing exactly what you want, and would be a good learning tool]. If there isn't such a tool, is there a debug option in Apache that will log such information for each incoming request?

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• My home partition slowly fills up until the system is unable to complete even simple tasks

  - by user973810

  So I have an awesome configuration on my home pc. My /home directory has its own partition. My home partition slowly fills up until the system is unable to complete even simple tasks. For example, when this issue has occured, I can load up firefox. It just pops up an error message saying that it cannot be done. Rebooting solves the issue. The strange thing is, I've run baobab and it doesn't notice a problem. There should be hundreds of gigabytes of data somewhere, but it doesn't see it. Does anyone have any idea of how I might troubleshoot this issue? I'm thinking I could do lsof but I've always found the output of that to be too much information. Maybe my drive is, like, dying. Edit: is there a /home analog of /var that gets cleared out at boot time? Maybe I could check in there next time I notice this problem to see if I can divine what's up. Update: I found the issue. my .xsession-errors file is filling up with Authentication deferred - ignoring client message Is there a way I can see what is causing this error and fix it?

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• How to log Windows server share connections?

  - by sbussinger

  Can anyone make a suggestion for the best way to log connections and disconnections from Windows workstations to a Windows Server 2003 file share? We're having some issues with workstations that have a drive mapped to a server that seem to work fine for awhile and then suddenly appear to get disconnected from the server (with files open). Needless to say this causes some data corruption and error messages. It would help me to troubleshoot the problem if we could somehow monitor and log the session connections and disconnections, to attempt to correlate the connectivity issues with what actions the user is taking at the time and what the server is doing. I just haven't been able to find a way to do this. Specifically I'm talking about the same information that is displayed in the Computer Management control panel applet in the "System Tools|Shared Folders|Sessions" page. Thanks!

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