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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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• 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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• Combinatorial explosion of interfaces: How many is too many?

  - by mga

  I'm a relative newcomer to OOP, and I'm having a bit of trouble creating good designs when it comes to interfaces. Consider a class A with N public methods. There are a number of other classes, B, C, ..., each of which interacts with A in a different way, that is, accesses some subset (<= N) of A's methods. The maximum degree of encapsulation is achieved by implementing an interface of A for each other class, i.e. AInterfaceForB, AInterfaceForC, etc. However, if B, C, ... etc. also interact with A and with each other, then there will be a combinatorial explosion of interfaces (a maximum of n(n-1), to be precise), and the benefit of encapsulation becomes outweighed by a code-bloat. What is the best practice in this scenario? Is the whole idea of restricting access to a class's public functions in different ways for other different classes just silly altogether? One could imagine a language that explicitly allows for this sort of encapsulation (e.g. instead of declaring a function public, one could specify exactly which classes it is visible to); Since this is not a feature of C++, maybe it's misguided to try to do it through the back door with interaces?

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• DIsable my nv video card driver in linux

  - by Dahaka Wang

  I'm trying to passthrough my nv video card to my domU, but I could not bind my video card to the pciback driver I only have one video card with the pci number 0000:03:00.0, so I used the following command echo -n "0000:03:00.0" > /sys/bus/pci/drivers/nouveau/bind to unbind the nouveau driver from my video card. The screen went black because I have forcefully removed the video driver, therefore I ssh'd into the computer to run further commands I ran: echo -n "0000:03:00.0" > /sys/bus/pci/drivers/pciback/bind to try to bind it to my pciback driver, but I got: bash: echo: write error: No such device I found out that this was the message shown when trying to bind a PCI device which is already bound. Therefore, I think that something was still using my video card Can anyone help me out? Thanks a lot!

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• New Versions of Whitepapers are available

  - by Anthony Shorten

  The set of whitepapers that are available are progressively being updated and republished to reflect new versions of the products as well new advice for existing customers. A number of whitepapers are now available that have been updated (the My Oracle Support Doc Id is indicated): What’s New in Oracle Utilities Application Framework V4 (Doc Id: 1177265.1) -  This has been updated for the latest facilities in Oracle Utilities Application Framework V4.1. Batch Best Practices (Doc Id: 836362.1) – This has been updated for newer advice including more details of how CLUSTERED mode works, how to migrate to CLUSTERED mode and some configuration examples to cover typical configuration scenarios. Oracle Utilities Application Framework Architecture Guidelines (Doc Id: 807068.1) – This has been updated to reflect additional architecture advice. Performance Troubleshooting Guides (Doc Id: 560382.1) – This has been updated for the latest facilities in Oracle Utilities Application Framework V4.1 and includes additional techniques that have been used by customers to track performance. The whitepapers apply to all Oracle Utilities Application Framework Products which at the present time includes: Oracle Utilities Customer Care And Billing (V2.x) Oracle Enterprise Taxation Management (V2.x) Oracle Utilities Business Intelligence (V2.x) Oracle Utilities Meter Data Management (V2.x) Oracle Utilities Mobile Workforce Management (V2.x) Oracle Utilities Smart Grid Gateway (V2.x) Additional whitepapers and updates will be posted as they are available.

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• Do we ethically have the right to use the MAC Address for verification purposes?

  - by Matt Ridge

  I am writing a program, or starting at the very beginning of it, and I am thinking of purchase verification systems as a final step. I will be catering to Macs, PCs, and possibly Linux if all is said and done. I will also be programming this for smartphones as well using C++ and Objective-C. (I am writing a blueprint before going head first into it) That being said, I am not asking for help on doing it yet, but what I’m looking for is a realistic measurement for what could be expected as a viable and ethical option for purchase verification systems. Apple through the Apple Store, and some other stores out there have their own "You bought it" check. I am looking to use a three prong verification system. Email/password 16 to 32 character serial number using alpha/numeric and symbols with Upper and lowercase variants. MAC Address. The first two are in my mind ok, but I have to ask on an ethical standpoint, is a MAC Address to lock the software to said hardware unethical, or is it smart? I understand if an Ethernet card changes if not part of the logic board, or if the logic board changes so does the MAC address, so if that changes it will have to be re-verified, but I have to ask with how everything is today... Is it ethical to actually use the MAC address as a validation key or no? Should I be forward with this kind of verification system or should I keep it hidden as a secret? Yes I know hackers and others will find ways of knowing what I am doing, but in reality this is why I am asking. I know no verification is foolproof, but making it so that its harder to break is something I've always been interested in, and learning how to program is bringing up these questions, because I don't want to assume one thing and find out it's not really accepted in the programming world as a "you shouldn't do that" maneuver... Thanks in advance... I know this is my first programming question, but I am just learning how to program, and I am just making sure I'm not breaking some ethical programmer credo I shouldn't...

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• Which SSL certificate to buy [closed]

  - by Sparsh Gupta

  I am reading several notes on SSL certificates and comparison. What matters to me the most is speed. I can read that encryption is same with all different certificates available but I was wondering if there is any difference in the performance of the website with different certificates involved. I am ofcourse interested in end to end response times and I wonder if the type of encryption or number of certificates required as Chain Certificates makes a difference in speed. I dont really care for cost but looking for a good SSL certificate which ideally gives me absolutely no pain and best performance. Recommendations?

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• Getting Steam.exe to run through a http proxy

  - by Kryptonite

  I'm sitting behind an http proxy which Steam refuses to go through. Trying Proxifier to fix the solution rendered an error about having to use an https proxy, though research shows that it shouldn't need one. Is it possible to make a target parameter in a shortcut? ie. "C:\Program Files\Steam\Steam.exe" --http-proxy=myusername:mypassword@SERVERNAME:8080 I have the server name and port number, though I'm yet to understand the relevance of 'myusername:mypassword', or infact which username and password these instructions were referring to. Of course, if a target parameter wouldn't work, would there be another way to get Steam to work?

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• Spring Cleaning

  - by Tim Dexter

  I recently got a shiny new laptop; moving my shiz from old to new, was not the nightmare it used to be. I have gotten into the habit of using a second hard drive in the media bay where the CDROM normally sits. That drive contains my life's work with BIP. I can pull it out and plug it into another machine very easily. I have been sorting through some old directories and files, archiving some, sharing others with colleagues. For instance, a little dated but if you were looking for a list of Publisher reports available in EBS R12.1, here it is. Im trying to track down a more recent R12 instance and will re-post the document. I also found another gem; its a little out there in terms of usefulness but Im sharing it none the less. You can embed, locally or remotely reference SVG graphics (in XML format) and bring the images into the BIP outputs. Template and sample data here. A nice set of templates showing page number control and page suppression - they will need some explanation, so I'll save them for another post. The list goes on but I'll save them for later. Back to the clean up!

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• Solaris: What is the difference between .so and .so.1 files?

  - by Rob Goretsky

  I am trying to understand how/why certain library files are dynamically loaded by the linker on Solaris. I am using ldd to see this (with the -s switch to see what paths are tried by the linker). As an example, if I run "ldd /usr/local/bin/isql -s" I notice that one of the libraries that is searched for is called "libodbc.so.1". I notice that this does NOT match a file it finds along the way called "libodbc.so". So, it finally resolves to a place where there is a symbolic link between "libodbc.so.1.0.0" and "libodbc.so.1". My question is - what is the significance of the ".1" here? Is it to indicate a version number? Why do some installers create these symbolic links, while others don't?

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• Which universal or driverless printing solution do you use/recommend?

  - by Matt

  I'm in need of a driverless printing solution for Microsoft Terminal Services 2003/2008. This is mainly to support clients who are connected through broadband into our hosted servers. We were hoping that MSTS 2008 thinprint would be the answer but unfortunately it performs poorly in the print area. The files are too large. I found the following slightly outdated URL: http://www.msterminalservices.org/software/Printing/ This lists a number of products but I have no experience with any of them. I'd like a product that works/easy to install (as our clients are remote and not particularly tech savvy) and ideally I just pay for the server license and not every clients. What is your experience/recommendation and tips you can offer me in regards to TS printing? thanks in advance.

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• Mailman aggregate mailing lists

  - by s1nny

  Using CENTOS 5.10, WHM, CpanelX I'm setting up mailing lists for my company (microsoft exchange costs too much for the number of users we have). So I've got a few mailing lists set up right now @Naples, @Cayman, @ACK, @Managers etc which are all set up and working nicely. Now I need to create an aggregate list, @Stores, which sends to other lists, in this case @Naples, @Cayman and @ACK and leaving out @Managers. I keep getting authorization requests from each store list when I send to @Stores but if I send to each store list individually its fine. I've got them all set up to "accept non member postings for which no explicit action is defined", as well as set "accept_these_nonmembers" to ^.*

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• What guidelines should be followed when implementing third-party tracking pixels?

  - by Strozykowski

  Background I work on a website that gets a fair amount of traffic, and as such, we have implemented different tracking pixels and techniques across the site for various specific reasons. Because there are many agencies who are sending traffic our way through email campaigns, print ads and SEM, we have agreements with a variety of different outside agencies for tracking these page hits. Consequently, we have tracking pixels which span the entire site, as well as some that are on specific pages only. We have worked to reduce the total number of pixels available on any one page, but occasionally the site is rendered close to unusable when one of these third-party tracking pixels fails to load. This is a huge difficulty on parts of the site where Javascript is needed for functionality built into the page, but is unable to initialize until a 404 is returned on the external tracking pixel. (Sometimes up to 30 seconds later) I have spent some time attempting to research how other firms deal with this sort of instability with third-party components, but have come up a bit short. The plan currently is to implement our own stop-gap method to deal with these external outages, but rather than reinventing the wheel, we wanted to find out how this is dealt with on other sites. Question Is there a good set of guidelines that should be followed when implementing third-party tracking pixels? I would love to see some white papers or other written documents about how other people have dealt with this issue.

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• AR242x / AR542x wireless card not working

  - by Pipan87

  My wifi worked perfect until I updated to the latest version of Ubuntu. Now I don't find any wireless connections at all. I have tried lots of guides on the internet but I can't get it to work. I did however start to work once after writing something I don't remember in Terminal, but after rebooting it stopped working again. Some info (don't know if you need more to help): 01:00.0 Ethernet controller: Atheros Communications AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) Subsystem: Acer Incorporated [ALI] Device 022c Flags: bus master, fast devsel, latency 0, IRQ 44 Memory at 55200000 (64-bit, non-prefetchable) [size=256K] I/O ports at 3000 [size=128] Capabilities: [40] Power Management version 2 Capabilities: [48] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [58] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [180] Device Serial Number ff-93-2e-de-00-23-8b-ff Kernel driver in use: ATL1E Kernel modules: atl1e 02:00.0 Ethernet controller: Atheros Communications Inc. AR242x / AR542x Wireless Network Adapter (PCI-Express) (rev 01) Subsystem: Foxconn International, Inc. Device e00d Flags: bus master, fast devsel, latency 0, IRQ 18 Memory at 54100000 (64-bit, non-prefetchable) [size=64K] Capabilities: [40] Power Management version 2 Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit- Capabilities: [60] Express Legacy Endpoint, MSI 00 Capabilities: [90] MSI-X: Enable- Count=1 Masked- Capabilities: [100] Advanced Error Reporting Capabilities: [140] Virtual Channel Kernel driver in use: ath5k Kernel modules: ath5k

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• Python: how to calculate data received and send between two ipaddresses and ports [closed]

  - by ramdaz

  I guess it's socket programming. But I have never done socket programming expect for running the tutorial examples while learning Python. I need some more ideas to implement this. What I specifically need is to run a monitoring program of a server which will poll or listen to traffic being exchange from different IPs across different popular ports. For example, how do I get data received and sent through port 80 of 192.168.1.10 and 192.168.1.1 ( which is the gateway). I checked out a number of ready made tools like MRTG, Bwmon, Ntop etc but since we are looking at doing some specific pattern studies, we need to do data capturing within the program. Idea is to monitor some popular ports and do a study of network traffic across some periods and compare them with some other data. We would like to figure a way to do all this with Python....

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• Showing the right form of total I want in a pivot table

  - by Maria

  I have a pivot table that shows how many condoms have been handed out and on how many distinct occasions. So the value in the pivot table is a number between 1 and 30 (no. of condoms handed out at one specific occasion) and then I can see – for each month – how many times that happened. For example, three times, two condoms were given out, four times, one condom was given out, et cetera. The total is set on Count and it shows the total of how many times condoms have been given out. However, in the total I want it to show the sum of all the condoms that been given out each month – is it possible to change this somehow?

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• How to Read XML and Generate SQL Insert

  - by hackerkatt

  I am trying to write a VB Script to read a XML file (downloaded daily) and insert the information into a MSSQL DB. The content of the XML is a list if CDRs (Call Data Records). I need to parse the file and insert the cdr's into a table. I'm a Ruby,Perl,PHP,Javascript,SQL,... programer. But I've really never written any VB Script. I've done some googling and find a number of examples on how to generate XML from a SQL Query, but not the reverse. Any help/suggestions would be greatly appreciated. Thank you!

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• Working with lots of cubes. Improving performance?

  - by Randomman159

  Edit: To sum the question up, I have a voxel based world (Minecraft style (Thanks Communist Duck)) which is suffering from poor performance. I am not positive on the source but would like any possible advice on how to get rid of it. I am working on a project where a world consists of a large quantity of cubes (I would give you a number, but it is user defined worlds). My test one is around (48 x 32 x 48) blocks. Basically these blocks don't do anything in themselves. They just sit there. They start being used when it comes to player interaction. I need to check what cubes the users mouse interacts with (mouse over, clicking, etc.), and for collision detecting as the player moves. Now I had a massive amount of lag at first, looping through every block. I have managed to decrease that lag, by looping through all the blocks, and finding which blocks are within a particular range of the character, and then only looping through those blocks for the collision detection, etc. However, I am still going at a depressing 2fps. Does anyone have any other ideas on how I could decrease this lag? Btw, I am using XNA (C#) and yes, it is 3d.

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• MySQL Enterprise Monitor 2.3.11 Is Now Available!

  - by Andy Bang

  We are pleased to announce that MySQL Enterprise Monitor 2.3.11 is now available for download on the My Oracle Support (MOS) web site. It will also be available via the Oracle Software Delivery Cloud in approximately 1-2 weeks. This is a maintenance release that contains several new features and fixes a number of bugs. You can find more information on the contents of this release in the changelog: http://dev.mysql.com/doc/mysql-monitor/2.3/en/mem-news-2-3-11.html You will find binaries for the new release on My Oracle Support: https://support.oracle.com Choose the "Patches & Updates" tab, and then use the "Product or Family (Advanced Search)" feature. And from the Oracle Software Delivery Cloud (in about 1-2 weeks): http://edelivery.oracle.com/ Choose "MySQL Database" as the Product Pack and you will find the Enterprise Monitor along with other MySQL products. If you haven't looked at 2.3 recently, please do so now and let us know what you think. Thanks and Happy Monitoring! - The MySQL Enterprise Tools Development Team

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• Get percentage free space on database volumes w/ SQL Server 2005?

  - by Allen

  I am currently using SQL Server 2005 and (undocumented I believe) master..xp_fixeddrives to get free space on my database volumes as part of my monitoring. However, this only gives me an absolute number of MB free. What I really need is percentage free. Is there another way in SQL Server 2005 to get this? If not, is there some other light-weight way to get it? If I can, I want to avoid installing a Java JRE, or Perl, or Python on my database server. Perhaps vbscript, or a small Windows executable on the file system? Yes, I know I can Google this, and I have. It looks like there are a few ways to accomplish it, and I'm curious how my DBA brethren have handled this.

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• Debian/Ubuntu: Enabling "dist-upgrade" behavior for unattended-upgrades?

  - by Mark Renouf

  We've got a customized distribution of Ubuntu, a repository with some custom packages and we run unattended-upgrades on a number of systems. What we want to be able to do is supply an update of one of our packages which might have a new dependency which is not yet installed. I understand apt normally prevents that from happening automatically, and using dist-upgrade would permit it. How can I get that behavior so our unattended upgrades work the same way? Ideally we'd only want new packages installed if one of our packages causes it to be needed (either as a direct dependency or a child, etc.) Should I be aware of any potential problems or increased risk of breakage. The systems are generally not easily accessed via the console so anything causing a problem requiring manual intervention would be very bad!

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• How can I password-protect a Mac shared folder on a Windows workgroup?

  - by Phillip Oldham

  We have a Mac-mini running 10.5.8 which already acts as a fileserver for our simple Windows (mixed XP/Vista) workgroup. The Mac-mini is on the same workgroup and the files are shared via SMB, FTP, and AFP. Basic file-sharing is working, and has been for some time. We'd now like to add an additional directory/share which can be secured by a password so that only a small number on the network have access. Is this possible? I've already tried creating the additional folder on the mac system, adding it to the shared folders, and limiting it to a specific "shared user", however it's not possible to log-in from an XP machine. Adding a sub-directory to the currently working share and giving limiting it's access to the shared user doesn't work either.

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• Looking for Unix tool/script that, given an input path, will compress every batch of uncompressed 100MB text files into a single gzip file

  - by newToFlume

  I have a dump of thousands of small text files (1-5MB) large, each containing lines of text. I need to "batch" them up, so that each batch is of a fixed size - say 100MB, and compress that batch. Now that batch could be: A single file that is just a 'cat' of the contents of the individual text files, or Just the individual text files themselves Caveats: unix split -b will not work here as I need to keep lines of text intact. Using the lines option is a bit complicated as there is a large variance in the number of bytes in each line. The files need not be a fixed size strictly, as long as it's within 5% of the requested size The lines are critical, and should not be lost: I need to confirm that the input made its way to output without loss - what rolling checksum (something like CRC32, BUT better/"stronger" in face of collisions) A script should do nicely, but this seems like a task someone has done before, and it would be nice to see some code (preferably python or ruby) that does atleast something similar.

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• Why would he say "We don't want to support MVC3"?

  - by MadBurn

  I work in a small shop at a fairly big company doing intranet web applications. By small, I mean there is 1 other guy in my position... and he graduated with me last December. (we aren't the only IT, but the only ones in our field) We are switching out an old COBOL system and converting it's only used application suite to a Web App. My company has contracted to a Web Application firm to help with this process who has chosen ASP.NET MVC, during one of the important meetings I asked if they will be using MVC2 or MVC3. Their lead developer said: "MVC2, we don't want to support MVC3. haha" My question is, why is this? This was several months ago and I've been doing extensive and self training gearing up for the MVC switch. From everything I am understanding, MVC3 is just like MVC2 if you don't use Razor and it fixes a number of smaller bugs that MVC2 had. So in my eyes, I can't see any reason to NOT use MCV3. There has to be something I'm missing. Since I don't really have any mentors to turn to in the real world, I'm coming here. What problems are there with MVC3 that might possibly lead him to say this that I'm missing?

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• What's a good tool for collecting statistics on filesystem usage?

  - by Kamil Kisiel

  We have a number of filesystems for our computational cluster, with a lot of users that store a lot of really large files. We'd like to monitor the filesystem and help optimize their usage of it, as well as plan for expansion. In order to this, we need some way to monitor how these filesystems are used. Essentially I'd like to know all sorts of statistics about the files: Age Frequency of access Last accessed times Types Sizes Ideally this information would be available in aggregate form for any directory so that we could monitor it based on project or user. Short of writing something up myself in Python, I haven't been able to find any tools capable of performing these duties. Any recommendations?

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