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• How to protect Ubuntu from fork bomb

  - by dblang

  I heard someone talking about a fork bomb, I did some research and found some dreadful information about some strange looking characters people can have you type at the command line and as a result do bad things on the computer. I certainly would not issue commands I do not understand but one never knows what can happen. I heard that some OS allows the administrator to place some limit on user processes to mitigate the effects of fork bombs, is this protection in Ubuntu by default or would a person with sudo privilege have to set this? If so, how?

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• Is making my own copyright licence safe?

  - by abcd

  I've seen various open source libraries (actually I've seen it for assets as well) having a home-baked license in the following manner : SomeGuy's License:1. You can use this code freely in commercial projects and modify it as you wish, but not sell it2. If you want to sell a modified version, drop me an email first, or give credits to me Edit: The above example is ambiguous, so I am giving another one, I want to know if 3 lines of license will hold some ground: SomeGuy's License:1. You can use this code in a commercial project as a 3rd party library2. You can't sell it as a derivative work I know that such license is not polished at all, for example the Creative Commons set of licenses seem to be short, but actually have some large legal stuff underneath it, but I wonder if at least some level of protection can be gained with a hobby license like that ? My question is, could this hold any ground in the court, or would the corporative lawyers of the company X tear it apart ?

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• What are the safety benefits of a type system?

  - by vandros526

  In Javascript: The Good Parts by Douglas Crockford, he mentions in his inheritance chapter, "The other benefit of classical inheritance is that it includes the specification of a system of types. This mostly frees the programmer from having to write explicit casting operations, which is a very good thing because when casting, the safety benefits of a type system are lost." So first of all, what actually is safety? protection against data corruption, or hackers, or system malfunctions, etc? What are the safety benefits of a type system? What makes a type system different that allows it to provide these safety benefits?

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• Is there a way to check if redistributed code has been altered?

  - by onlineapplab.com

  I would like to redistribute my app (PHP) in a way that the user gets the front end (presentation) layer which is using the API on my server through a web service. I want the user to be able to alter his part of the app but at the same time exclude such altered app from the normal support and offer support on pay by the hour basis. Is there a way to check if the source code was altered? Only solution I can think of would be to get check sums of all the files then send it through my API and compare them with the original app. Is there any more secure way to do it so it would be harder for the user to break such protection?

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• What is this chargeback scam from eBooks bought on my website?

  - by Dan Friedman

  We have a scammer that is buying our e-Books and then performing chargebacks. Our e-Books don't have DRM, so if they wanted to resell them, they would only need to buy each book once. But instead, they keep buying the same books over and over again and then performing hundreds of chargebacks. We have created some additional rules in our fraud protection tools to block certain aspects, even though all the info looks legit, and are hopeful this will slow them down. But my question is: What is the scam? If they aren't getting any product and they only get chargebacks for something they already purchased, then they can't get additional money from the credit card company, so then what's their motivation?

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• Flash Player : un chercheur trouve comment contourner le bac à sable et transmettre des données à un serveur distant

  Flash Player : un chercheur trouve comment contourner le bac à sable et transmettre des données à un serveur distant Un chercheur a trouvé un moyen de contourner la Sandbox de Flash Player, une mesure de sécurité introduite récemment par Adobe. Billy Rios a publié sur son blog la procédure pour contourner la protection qui isole le processus du Player du reste de la machine, un contournement du « bac à sable » qui pourrait donner la possibilité à un pirate de voler des données et de les transmettre à un serveur distant. Cette preuve de faisabilité (PoC) liée aux fichiers SWF montre que l'on peut transmettre des données locales sans que l'utilisateur victime n'ait aucune ind...

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• weblogs.asp.net no longer usable as a blogging platform?

  - by svdoever

  I get swamped by spam on my weblogs.asp.net weblog. Both comments spam and spam through the contact form. It is getting so bad that I think the platform is becoming useless for me. Why o why are we bloggers from the first hour still in stone age without any protection against spam. Implementing Captcha shouldn’t be that hard… As far as I know this is the same blogging platform used by blogs.msdn.com. Aren’t all Microsoft bloggers getting sick from spam? In the past I tried to contact the maintainers of weblogs.asp.net, but never got a response. Who maintains the platform? Why are we still running on a Community Server Edition of 2007? Please help me out, or I’m out of here.

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• Ubuntu will not start due to full partitions

  - by mike

  I left my computer downloading all the night and I did download 35 GB of movies (legal ...). I restarted the computed in the morning then I booted in my encrypted Windows partition for my work. I have left my computer downloading 35GB of files and when I restarted in the morning, I booted Windows. When I tried to access Ubuntu, it failed to boot and in low-graphic mode told me that it won't boot because the partition is full. I tried rescue and it reported 0 MB free. I also cannot delete files with sudo rm as all are impossible due to a read-only file system. I can mount it in Windows but there is a "write protection" there, also. Should I try a live USB?

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• SanDisk présente une CompactFlash de 128 GB à 1500 $ l'unité, de telles capacités ont-elles un sens ?

  SanDisk présente une CompactFlash de 128 GB à 1500 $ l'unité, de telles capacités ont-elles un sens ? SanDisk vient de lancer une nouvelle carte mémoire CompactFlash dont les spécifications sont impressionnantes : 128 GB de capacité de stockage pour une vitesse d'écriture de 100MB par seconde. Appuyer sur le déclencheur pour prendre un cliché en deviendrait presque plus long que le transfert de l'image numérique sur les circuits ! De plus, ses dimensions aident à dissiper la chaleur qui découle de ce haut taux d'échange de données ; et offrent aussi plus de place pour l'insertion d'une protection, qui la protège des températures extrêmes. Mais cette Extreme Pro CompactFlash a un prix, et pas un petit... Elle coûte 15...

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• What kind of spam is this?

  - by SSilk

  I realize this is a pretty vague question, but I occasionally get spam messages through my contact form on a Drupal 6 site. The contact form does not have any anti-spam protection (i.e. math question). The messages I get are all very similar and just jumbled junk, like below, so I think they're all from the same source. Example: ylsaf0V bpsdfuxnhjjd, [url=http://wwgfsggzgyjyjm.com/]wwgrfgzrgsjyjm[/url], [link=http://xmgvyghcuufvb.com/]xmjyhvyjyfjirovb[/link], http://frgxmdghrgruhfc.com/ Anyway, I'm just wondering what the point of such a message is. All the links are dead, it's illegible, and it's not trying to sell me a product or get me to do anything, so I'm a bit perplexed. Is there any way to tell where they're coming from? And how concerned should I be? To be clear, I'm not asking how to avoid them, I realize just adding a simple math challenge or captcha would likely do the job.

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• La liste de Noël de Developpez (part. 2) : les livres

  La liste de Noël de Developpez partie 2 Notre sélection de livres 2012 Et oui, déjà Noël. Et à chaque fois la même question : « qu'est-ce que je vais bien pouvoir lui (leur) offrir ? ». Pire ! « Qu'est-ce que je vais bien pouvoir demander ? ». Pour vous aider, Developpez.com vous livre sa liste de cadeaux 2012 dans laquelle vous n'aurez plus qu'à piocher. Après la première partie sur les appareils et nos deux coups de coeurs pour les claviers en bois du Languedoc et les Pochettes de protection artisanales d'Asnières, voici notre liste de livres 2013. 1 - Si Steve ...

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• Quelle sera la plus grande menace de 2011 pour les entreprises ? Websense en propose 5

  Quelle sera la plus grande menace de 2011 pour les entreprises ? Websense en propose 5 Websense, éditeur de solutions de sécurité pour les entreprises, vient de dévoiler ses prédictions pour les dangers à venir qui cibleront les professionnels en 2011. « 2011 apportera une série de menaces dangereuses conçues pour voler les données d'entreprise et immobiliser l'infrastructure, résume Patrik Runald, directeur de recherche en sécurité chez Websense. La majorité des stratégies de sécurité classiques sont inopérantes. Les entreprises et les pouvoirs publics doivent évaluer en permanence les moyens de défense. Une protection contre les toutes dernières menaces qui unifie la connaissance du contenu constitue la meilleure défense d'une e...

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• What is this chargeback scam? [on hold]

  - by Dan Friedman

  We have a scammer that is buying our e-Books and then performing chargebacks. Our e-Books don't have DRM, so if they wanted to resell them, they would only need to buy each book once. But instead, they keep buying the same books over and over again and then performing hundreds of chargebacks. We have created some additional rules in our fraud protection tools to block certain aspects, even though all the info looks legit, and are hopeful this will slow them down. But my question is: What is the scam? If they aren't getting any product and they only get chargebacks for something they already purchased, then they can't get additional money from the credit card company, so then what's their motivation?

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• HTG Explains: How Antivirus Software Works

  - by Chris Hoffman

  Antivirus programs are powerful pieces of software that are essential on Windows computers. If you’ve ever wondered how antivirus programs detect viruses, what they’re doing on your computer, and whether you need to perform regular system scans yourself, read on. An antivirus program is an essential part of a multi-layered security strategy – even if you’re a smart computer user, the constant stream of vulnerabilities for browsers, plug-ins, and the Windows operating system itself make antivirus protection important. 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• Keeping files private on the internet (.htaccess password or software/php/wordpress password)

  - by jiewmeng

  I was asked a while ago to setup a server such that only authenticated users can access files. It was like a test server for clients to view WIP sites. More recently, I want to do something similar for some of my files. Tho they are not very confidential, I wish that I am the only one viewing it. I thought of doing the same, Create a robots.txt User-agent: * Disallow: / Setup some password protection, .htpasswd seems like a very ugly way to do it. It will prompt me even when I log into FTP. I wonder if software method like password protected posts in Wordpress will do the trick of locking out the public and hiding content from Search Engines? Or some self made PHP script will do the trick?

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• SPARC Servers at Oracle OpenWorld

  - by B.Koch

  There is plenty to learn about the SPARC servers at the Oracle OpenWorld. The SPARC server sessions offer depth and breadth in content selection to satisfy everyone's need from the one who is technically oriented to the one who would like to understand more about the business value of SPARC technology. And, there is always more. Keynotes, Oracle innovations and many product demonstrations are only a few of many other opportunities to interact with the product experts and executives to establish greater insight to the Oracle SPARC technology. The Oracle SPARC Servers Oracle's SPARC servers running Oracle Solaris are ideal for mission-critical applications that require high performance, best-in-class availability, and unmatched scalability on all application tiers. With a robust roadmap, Oracle assures the highest levels of investment protection through 100% SPARC/Solaris binary compatibility, proven by hundreds of thousands of deployments over more than 20 year. 

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• Des failles découvertes dans les formats d'archivage, permettant dissimulation et propagation de cod

  Des failles découvertes dans les formats d'archivage, permettant dissimulation et propagation de codes malveillants La semaine dernière, lors de la Black Hat (l'évènement mondial en terme de sécurité informatique, qui a lieu plusieurs fois par an, cette édition s'est déroulée à Barcelone), des chercheurs ont exposé leurs résultats à propos d'une étude concernant les formats d'archivage populaires. Tomislav Pericin, fondateur du projet de protection de programmes RLPack, a découvert comment y cacher des programmes malins indétectables par la majorité des antivirus. Il assure cependant que la majorité des vendeurs d'antivirus ont récemment mis à jour leurs applications afin de détecter les formats d'archive compromis, comme ".ra...

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• auth_mysql and php [migrated]

  - by user1052448

  I have a directory with auth_mysql in a virtualhost file password protected using a mysql user/pass combo. The problem I have is one file inside that directory needs to be accessed without a user/pass. Is there a way I can pass the user/pass within the php file? Or excluse the one file? What would I put between the code below? <Location /password-protected> ...mysql password protection require valid-user </Location>

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• How to Configure Windows Defender

  The existence of spyware and other unwanted irritations on the Web is so widespread that keeping your PC protected is an absolute must. Microsoft responded to this need with the inclusion of its Windows Defender program with Windows 7. Windows Defender does exactly what its name suggests, which is to defend your PC from spyware and other malicious programs. It does this first with real-time protection that notifies you if any spyware tries to run on your computer or if a program tries to change any vital settings in Windows. Windows Defender also helps to keep your computer protected thro...

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• Private domain purchase with paypal: how to prevent fraud?

  - by whamsicore

  I am finally going to buy a domain I have been looking at. The domain owner wants me to give him my Godaddy account information and send him the payment via Paypal gift, so that there will be no extra charges. Should this cause suspicion? Does Paypal offer any kind of fraud protection? What is the best way to protect myself from fraud in this situation, without the need for escrow services, such as escrow.com? Any advice welcomed. Thanks.

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• Le rachat de McAfee par Intel validé par la Commission européenne, sous réserve d'une garantie "d'interopérabilité des produits"

  Le rachat de McAfee par Intel validé par la Commission européenne, sous réserve d'une garantie de l'interopérabilité "des produits issus de cette concentration" Mise à jour du 28.01.2011 par Katleen Ca y est, la Commission européenne a finalement statué sur l'acquisition de McAfee par Intel, et a décide de l'autoriser, tout en y mettant des conditions. En effet, cette validation est « accordée sous réserve d'un ensemble d'engagements garantissant une concurrence équitable entre les parties et leurs concurrents dans le domaine de la sécurité informatique ». Intel a donc du s'engager a garantir que ses processeurs équipés des technologies de protection de McAfee seront compatib...

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• How to protect Ubuntu from fork bomb

  - by dblang

  I heard someone talking about a fork bomb, I did some research and found some dreadful information about some strange looking characters people can have you type at the command line and as a result do bad things on the computer. I certainly would not issue commands I do not understand but one never knows what can happen. I heard that some OS allows the administrator to place some limit on user processes to mitigate the effects of fork bombs, is this protection in Ubuntu by default or would a person with sudo privilege have to set this? If so, how?

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• Backup and Recovery in Exadata environments

  - by Javier Puerta

  As with any infrastructure every Engineered Systems customer needs a Backup & Recovery solution for Data Protection. See a detailed presentation and learn about the challenges of backup & recovery and the key benefits of the ZFS Storage Applicance as a backup device for Exadata & Sparc SuperCluster. (You need to be a registered member of the Exadata Partner Community to access link above. Otherwise you will get an error. You can register here)

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• Google Apps for Business : Google propose la signature chiffrée des mails pour lutter contre les spams, en utilisant la norme DKIM

  Google Apps for Business : Google propose la signature chiffrée des mails Pour lutter contre les spams, en utilisant la norme DKIM Dans sa lutte contre le fléau des spams, Google vient d'ajouter un outil à ses Google Apps for Business, sa suite professionnelle d'applications Cloud. En plus de Postini, cette suite se dote aujourd'hui d'une technologie spécialement conçue pour contre-carrer les spams et autres phishing. Le principe repose sur une identification chiffrée de l'identité de l'expéditeur, qui s'authentifie alors comme « sûr ». Cette protection utilise sur une norme déjà existante appelée « DomainKeys Identified Mail » (DKIM). La nouveautés est son intégration aux Google ...

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• Windows Azure HPC Scheduler Architecture

  - by Churianov Roman

  So far I've found very little information on the scheduling policy, resource management policy of Azure HPC Scheduler. I would appreciate any kind of information regarding some of these questions: What scheduling policy does a Head Node use to scatter jobs to Compute Nodes? Does Azure Scheduler use prior information about the jobs (compute time, memory demands ...) ? If 'yes', how it gets this information? Does Azure Scheduler split a job into several parallel jobs on one Compute node? Does it have any protection from Compute Node failures? (what it does when a compute node stops responding) Does it support addition/subtraction of Compute nodes? Is it possible to cancel a job? P.S. I'm aware of the MSDN resource Windows Azure HPC Scheduler. I found only information of how to use this Scheduler but almost nothing about how it works inside.

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