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  • Where are the real risks in network security?

    - by Barry Brown
    Anytime a username/password authentication is used, the common wisdom is to protect the transport of that data using encryption (SSL, HTTPS, etc). But that leaves the end points potentially vulnerable. Realistically, which is at greater risk of intrusion? Transport layer: Compromised via wireless packet sniffing, malicious wiretapping, etc. Transport devices: Risks include ISPs and Internet backbone operators sniffing data. End-user device: Vulnerable to spyware, key loggers, shoulder surfing, and so forth. Remote server: Many uncontrollable vulnerabilities including malicious operators, break-ins resulting in stolen data, physically heisting servers, backups kept in insecure places, and much more. My gut reaction is that although the transport layer is relatively easy to protect via SSL, the risks in the other areas are much, much greater, especially at the end points. For example, at home my computer connects directly to my router; from there it goes straight to my ISPs routers and onto the Internet. I would estimate the risks at the transport level (both software and hardware) at low to non-existant. But what security does the server I'm connected to have? Have they been hacked into? Is the operator collecting usernames and passwords, knowing that most people use the same information at other websites? Likewise, has my computer been compromised by malware? Those seem like much greater risks. What do you think?

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  • Is it possible to use boost::bind to effectively concatenate functions?

    - by Catskul
    Assume that I have a boost::function of with an arbitrary signature called type CallbackType. Is it possible to use boost::bind to compose a function that takes the same arguments as the CallbackType but calls the two functors in succession? Hypothetical example using a magic template: Template<typename CallbackType> class MyClass { public: CallbackType doBoth; MyClass( CallbackType callback ) { doBoth = bind( magic<CallbackType>, protect( bind(&MyClass::alert, this) ), protect( callback ) ); } void alert() { cout << "It has been called\n"; } }; void doIt( int a, int b, int c) { cout << "Doing it!" << a << b << c << "\n"; } int main() { typedef boost::function<void (int, int, int)> CallbackType; MyClass<CallbackType> object( boost::bind(doIt) ); object.doBoth(); return 0; }

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  • Using shared_ptr to implement RCU (read-copy-update)?

    - by yongsun
    I'm very interested in the user-space RCU (read-copy-update), and trying to simulate one via tr1::shared_ptr, here is the code, while I'm really a newbie in concurrent programming, would some experts help me to review? The basic idea is, reader calls get_reading_copy() to gain the pointer of current protected data (let's say it's generation one, or G1). writer calls get_updating_copy() to gain a copy of the G1 (let's say it's G2), and only one writer is allowed to enter the critical section. After the updating is done, writer calls update() to do a swap, and make the m_data_ptr pointing to data G2. The ongoing readers and the writer now hold the shared_ptr of G1, and either a reader or a writer will eventually deallocate the G1 data. Any new readers would get the pointer to G2, and a new writer would get the copy of G2 (let's say G3). It's possible the G1 is not released yet, so multiple generations of data my co-exists. template <typename T> class rcu_protected { public: typedef T type; typedef std::tr1::shared_ptr<type> rcu_pointer; rcu_protected() : m_data_ptr (new type()) {} rcu_pointer get_reading_copy () { spin_until_eq (m_is_swapping, 0); return m_data_ptr; } rcu_pointer get_updating_copy () { spin_until_eq (m_is_swapping, 0); while (!CAS (m_is_writing, 0, 1)) {/* do sleep for back-off when exceeding maximum retry times */} rcu_pointer new_data_ptr(new type(*m_data_ptr)); // as spin_until_eq does not have memory barrier protection, // we need to place a read barrier to protect the loading of // new_data_ptr not to be re-ordered before its construction _ReadBarrier(); return new_data_ptr; } void update (rcu_pointer new_data_ptr) { while (!CAS (m_is_swapping, 0, 1)) {} m_data_ptr.swap (new_data_ptr); // as spin_until_eq does not have memory barrier protection, // we need to place a write barrier to protect the assignments of // m_is_writing/m_is_swapping be re-ordered bofore the swapping _WriteBarrier(); m_is_writing = 0; m_is_swapping = 0; } private: volatile long m_is_writing; volatile long m_is_swapping; rcu_pointer m_data_ptr; };

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  • iPhone Simulator - Restores Plist - Weird Issue

    - by David Schiefer
    Hi All, today I've come across a rather weird issue. After adding code to validate a key (i added it below), the Simulator refuses to let go of the old plist file. I deleted the simulator folder in the Application Support folder, then deleted the *build directory and restarted xcode & build & run my app...still the same issue. the old plist is still there and 100% identical. I then changed the identifier and the snippet's validation keys, the plist however stayed the same. basically, no matter what i do it won't go. the same thing happens on the iphone itself. I have checked through the code, i don't create the key anywhere, but it still returns YES for it at every restart. Here's the code I added: + (void)initialize{ ////////////////////////////SPECIFING THE PREDATA/////////////////// NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; NSDictionary *appDefaults = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO] forKey:@"protect"]; [defaults registerDefaults:appDefaults]; } if ([[NSUserDefaults standardUserDefaults] boolForKey:@"protect"] == NO) { [navigationController pushViewController:help animated:YES]; [help.navigationItem hidesBackButton]; } else { [window addSubview:passcode.view]; [self performSelector:@selector(responder) withObject:nil afterDelay:1]; } as a result, it will always go for the else option, which for some reason, doesn't get executed either. I assumed an error but the log is empty and there's no crash.

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  • ASP.NET MVC Validation of ViewState MAC failed

    - by Kevin Pang
    After publishing a new build of my ASP.NET MVC web application, I often see this exception thrown when browsing to the site: System.Web.Mvc.HttpAntiForgeryException: A required anti-forgery token was not supplied or was invalid. --- System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. --- System.Web.UI.ViewStateException: Invalid viewstate. This exception will continue to occur on each page I visit in my web application until I close out of Firefox. After reopening Firefox, the site works perfectly. Any idea what's going on? Additional notes: I am not using any ASP.NET web controls (there are no instances of runat="server" in my application) If I take out the <%= Html.AntiForgeryToken % from my pages, this problem seems to go away

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  • How to catch HttpAntiForgeryException in ASP.NET MVC

    - by megalonychidae
    I'm using the AntiForgeryToken in my ASP.NET MVC forms. If I deactivate cookies in my browser and send the from, I'd get following error message: A required anti-forgery token was not supplied or was invalid. How can I prevent this message from showing? I would prefer redirecting the user to another page. I've activated customErrors and included this HandleError in my controller: [HandleError(ExceptionType=typeof(HttpAntiForgeryException), View="Index")] public class MyController : Controller { ... } The HandleError is ignored. Has anyone got a solution?

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  • How can i supply an AntiForgeryToken when posting JSON data using $.ajax ?

    - by HerbalMart
    I am using the code as below of this post: First i will an fill array variable with the correct values for the controller action. Using the code below i think it should be very straigtforward by just adding the following line to the javascript: data["__RequestVerificationToken"] = $('[name=__RequestVerificationToken]').val(); The <%= Html.AntiForgeryToken() %> is at his right place and the action has a [ValidateAntiForgeryToken] But my controller action keeps saying: "Invalid forgery token" What am i doing wrong here? Code data["fiscalyear"] = fiscalyear; data["subgeography"] = $(list).parent().find('input[name=subGeography]').val(); data["territories"] = new Array(); $(items).each(function() { data["territories"].push($(this).find('input[name=territory]').val()); }); if (url != null) { $.ajax( { dataType: 'JSON', contentType: 'application/json; charset=utf-8', url: url, type: 'POST', context: document.body, data: JSON.stringify(data), success: function() { refresh(); } }); }

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  • What XSS/CSRF attacks (if any) to be aware of when allowing video embeds?

    - by fireeyedboy
    I've been assigned a project for a website where users will be allowed to upload video's (using a YouTube API) but more importantly (for me) they will also be allowed to submit video embed codes (from numerous video sites, YouTube, Vimeo, etc. etc.). Having no experience with allowing users to embed video: How can I best protect against cross site scripting and/or cross site request forgery attacks specifically for video embedding? What are some of the common pitfalls to watch for? At a minumum I would think to strip all tags except <object> and <embed>. But I have a feeling this will not be enough, will it? If it is of importance, the environment will be: PHP/Zend Framework MySQL Bonuspoints: Is there a common minimum golden rule/code template for video embed codes that are valid across all video sites that I could use to filter the input?

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  • CodePlex Daily Summary for Wednesday, June 02, 2010

    CodePlex Daily Summary for Wednesday, June 02, 2010New ProjectsBackupCleaner.Net: A C#.Net-based tool for automatically removing old backups selectively. It can be used when you already make daily backups on disk, and want to cle...C# Dotnetnuke Module development Template for Visual Studio 2010: C# DNN Module Development template for Visual Studio 2010 Get a head-start on DNN Module development. Whether you're a pro or just starting with D...Christoc's DotNetNuke C# Module Development Template: A quick and easy to use C# Module development template for DotNetNuke 5, Visual Studio 2008.Client per la digitalizzazione di documenti integrato con DotNetNuke: Questo applicativo in ambiente windows 32bit consente di digitalizzare documenti con piu scanner contemporaneamente, processare OCR in 17 Lingue (p...ContainerOne - C# application server: An application server completely written in c# (.net 4.0).Drop7 Silverlight: It's a clone of the original Drop7 written in Silverlight (C#). Echo.Net: Echo.Net is an embedded task manager for web and windows apps. It allows for simple management of background tasks at specific times. It's develope...energy: Smartgrid Demand Response ImplementationGenerate Twitter Message for Live Writer: This is a plug-in for Windows Live Writer that generates a twitter message with your blog post name and a TinyUrl link to the blog post. It will d...HomingCMS.Net: A lightweight cms.Information Système & Shell à distance: Un web service qui permet d'avoir des informations sur le système et de lancer de commande (terminal) à distance.Javascript And Jquery: gqq's javascript and jquery examplesMemory++: "Tweak the memory to speed up your computer" Memory ++ is basically an application that will speed up your computer ensuring comfort in their norma...Microformat Parsers for .NET: Microformat's Parsers for .NET helps you to collect information you run into on the web, that is stored by means of microformats. It's written in C...MoneyManager: Trying to make Personal Finances management System for my needs. Microsoft stopped to support MSMoney - it makes me so sad, so I wanna to make my ...Open source software for running a financial markets trading business: The core conceptual model will support running a business in the financial markets, for example running a trading exchange business.Ovik: Open Video Converter with simple and intuitive interface for converting video files to the open formats.Oxygen Smil Player: The <project name> is a open a-smil player implementation that is meaned to be connected to a Digital Signage CMS like Oxygen media platform ( www....Protect The Carrot: Protect The Carrot is a small fastpaced XNA game. You are a farmer whose single carrot is under attack by ravenous rabbits. You have to shoot the r...Race Day Commander: The core project is designed to support coaches of "long distance" or "endurance" sporting events coach their athletes during a race. The idea bein...Raygun Diplomacy: Raygun Diplomacy is an action shooter sandbox game set in a futuristic world. It will use procedural generation for the world, weapons, and vehicle...Resx-Translator-Bot: Resx-Translator-Bot uses Google Tanslate to automatically translate the .resx-files in your .NET and ASP.NET applications.Sistema de Expedición del Permiso Único de Siembra: Sistema de Expedición del Permiso Único de Siembra.SiteOA: 一个基于asp.net mvc2的OAStraighce: This is a low-featured, cyclic (log files reside in appname\1.txt to at mose 31.txt), thread-safe and non-blocking TraceListener with some extensio...Touch Mice: Touch Mice turns multiple mice on a computer into individual touch devices. This allows you to create multi-touch applications using the new touch...TStringValidator: A project helper to validate strings. Use this class to hold your regex strings for use with any project's string validation.Ultimate Dotnetnuke Skin Object: Ultimate Skin Object is a Dotnetnuke 5.4.2+ extension that will allow you to easily change your skins doc type, remove unneeded css files, inject e...Ventosus: Ventosus is an upcoming partially text-based game. No further information is available at this time.vit: vit based on asp.net mvcW7 Auto Playlist Generator: Purpose: This application is designed to create W7MC playlist automatically whenever you want. You can select if you want the playlist sorted Alpha...W7 Video Playlist Creator: Purpose: This program allows you to quickly create wvx video play list for Windows Media Center. This functionality is not included in WMC and is u...New ReleasesBCryptTool: BCryptTool v0.2.1: The Microsoft .NET Framework 4.0 is needed to run this program.BFBC2 PRoCon: PRoCon 0.5.2.0: Notes available on phogue.netC# Dotnetnuke Module development Template for Visual Studio 2010: DNNModule 1.0: This is the initial release of DNNModule as was available for download from http://www.subodh.com/Projects/DNNModule In this release: Contains one...Client per la digitalizzazione di documenti integrato con DotNetNuke: Versione 3.0.1: Versione 3.0.1CommonLibrary.NET: CommonLibrary.NET 0.9.4 - Final Release: A collection of very reusable code and components in C# 3.5 ranging from ActiveRecord, Csv, Command Line Parsing, Configuration, Holiday Calendars,...Community Forums NNTP bridge: Community Forums NNTP Bridge V20: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release has ad...Community Forums NNTP bridge: Community Forums NNTP Bridge V21: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release has ad...DirectQ: Release 1.8.4: Significant bug fixes and improvments over 1.8.3c; there may be some bugs that I haven't caught here as development became a little disjointed towa...DotNetNuke 5 Thai Language Pack: 1.0.1: Fixed Installation Problem. Version 1.0 -> 1.0.1 Type : Character encoding. Change : ().dnn description file to "ไทย (ไทย)".dnnEcho.Net: Echo.Net 1.0: Initial release of Echo.Net.Extend SmallBasic: Teaching Extensions v.018: ShapeMaker, Program Window, Timer, and many threading errors fixedExtend SmallBasic: Teaching Extensions v.019: Added Rectangles to shapemaker, and the bubble quizGenerate Twitter Message for Live Writer: Final Source Code Plus Binaries: Compete C# source code available below. I have also included the binary for those that just want to run it.GoogleMap Control: GoogleMap Control 4.5: Map and map events are only functional. New state, persistence and event implementation in progress. Javascript classes are implemented as MS AJAX ...Industrial Dashboard: ID 3.1: -Added new widget IndustrialSlickGrid. -Added example with IndustrialChart.LongBar: LongBar 2.1 Build 310: - Library: Double-clicking on tile will install it - Feedback: Now you can type your e-mail and comment for errorMavention: Mavention Insert Lorem ipsum: A Sandbox Solution for SharePoint 2010 that allows you to easily insert Lorem ipsum text into RTE. More information and screenshots available @ htt...Memory++: Memory ++: Tweak the memory to speed up your computer Memory is basically an application that will speed up your computer ensuring comfort in their normal ac...MyVocabulary: Version 2.0: Improvements over version 1.0: Several bug fixes New shortcuts added to increase usability A new section for testing verbs was addednopCommerce. Open Source online shop e-commerce solution.: nopCommerce 1.60: You can also install nopCommerce using the Microsoft Web Platform Installer. Simply click the button below: nopCommerce To see the full list of f...Nuntio Content: Nuntio Content 4.2.1: Patch release that fixes a couple of minor issues with version numbers and priority settings for role content. The release one package for DNN 4 an...Ovik: Ovik v0.0.1 (Preview Release): This is a very early preview release of Ovik. It contains only the pure processes of selecting files and launching a conversion process. Preview r...PHPExcel: PHPExcel 1.7.3c Production: This is a patch release for 26477. Want to contribute?Please refer the Contribute page. DonationsDonate via PayPal. If you want to, we can also a...PowerShell Admin Modules: PAM 0.2: Version 0.2 contains the PAMShare module with Get-Share Get-ShareAccessMask Get-ShareSecurity New-Share Remove-Share Set-Share and the PAMath modu...Professional MRDS: RDS 2008 R3 Release: This is an updated version of the code to work with RDS 2008 R3 (version 2.2.76.0). IMPORTANT NOTE These samples are supplied as a ZIP file. Unzip...Protect The Carrot: First release: We provide two ways to install the game. The first is PTC 1.0.0.0 Zip which contains a Click-Once installer (the DVD type since codeplex does not...PST File Format SDK: PST File Format SDK v0.2.0: Updated version of pstsdk with several bug fixes, including: Improved compiler support (several changes, including two patches from hub) Fixed Do...Race Day Commander: Race Day Commander v1: First release. The exact code that was written on the day in 6 hours.Resx-Translator-Bot: Release 1.0: Initial releaseSalient.StackApps: JavaScript API Wrapper beta 2: This is the first draft of the generated JS wrapper. Added basic test coverage for each route that can also serve as basic usage examples. More i...SharePoint 2010 PowerShell Scripts & Utilities: PSSP2010 Utils 0.2: Added Install-SPIFilter script cmdlet More information can be found at http://www.ravichaganti.com/blog/?p=1439SharePoint Tools from China Community: ECB菜单控制器: ECB菜单控制器Shopping Cart .NET: 1.5: Shopping Cart .NET 1.5 has received an upgrade to .NET 4.0 along with SQL Server 2005/8. There is a new AJAX Based inventory system that helps you ...sMODfix: sMODfix v1.0b: Added: provisional support for ecm_v54 Added: provisional support for gfx_v88SNCFT Gadget: SNCFT gadget v1: cette version est la version 1 de ma gadgetSnippet Designer: Snippet Designer 1.3: Change logChanges for Visual Studio 2010Fixed bug where "Export as Snippet" was failing in a website project Changed Snippet Explorer search to u...sNPCedit: sNPCedit v0.9b: + Fixed: structure of resources + Changed: some labels in GUISoftware Is Hardwork: Sw. Is Hw. Lib. 3.0.0.x+05: Sw. Is Hw. Lib. 3.0.0.x+05SQL Server PowerShell Extensions: 2.2.3 Beta: Release 2.2 re-implements SQLPSX as PowersShell version 2.0 modules. SQLPSX consists of 9 modules with 133 advanced functions, 2 cmdlets and 7 scri...StackOverflow.Net: Preview Beta: Goes with the Stack Apps API version 0.8Ultimate Dotnetnuke Skin Object: Ultimate Skin Object V1.00.00: Ultimate Skin Object is a Dotnetnuke 5.4.2+ extension that will allow you to easily change your skins doc type, remove unneeded css files, inject e...VCC: Latest build, v2.1.30601.0: Automatic drop of latest buildVelocity Shop: JUNE 2010: Source code aligned to .NET Framework 4.0, ASP.NET 4.0 and Windows Server AppFabric Caching RC.ViperWorks Ignition: ViperWorks_5.0.1005.31: ViperWorks Ignition Source, version 5.0.1005.31.Visual Studio 2010 and Team Foundation Server 2010 VM Factory: Session Recordings: This release contains the "raw" and undedited session recordings and slides delivered by the team. 2010-06-01 Create package and add two session r...W7 Auto Playlist Generator: Source Code plus Binaries: Compete C# and WinForm source code available below. I have also included the binary for those that just want to run it.W7 Video Playlist Creator: Source Code plus Binaries: Compete C# and WPF source code available below. I have also included the binary for those that just want to run it.Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryPHPExcelMicrosoft SQL Server Community & SamplesASP.NETMost Active ProjectsCommunity Forums NNTP bridgepatterns & practices – Enterprise LibraryGMap.NET - Great Maps for Windows Forms & PresentationBlogEngine.NETIonics Isapi Rewrite FilterMirror Testing SystemRawrCaliburn: An Application Framework for WPF and SilverlightPHPExcelCustomer Portal Accelerator for Microsoft Dynamics CRM

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  • How to secure JBoss application server using SELinux

    - by Jakub Elias
    I want to secure RedHat 5.4 application server by SELinux (targeted policy) and have several questions 1, where can i get SELinux sources (/etc/selinux//src/policy/)There seems to be no such package on install cd .. 2, how to restrict user rights (for example user jboss could not modify /etc/my.cnf) 3, how to configure JBoss application server to work under SELinux Although i read many documents from NSA the whole topic is still not clear for me.What i want is to basically protect filesystem in case one account is broken.I cannot find any materials about securing jboss server using either chroot jail, ACLs or SELinux ....

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  • The perfect server room?

    - by splattne
    What do I have to consider when I'm planning a new server room for a small company (30 PCs, 5 servers, a couple of switches, routers, UPS...)? What are the most important aspects in order to protect the hardware? What things do not belong in a server closet? Edit: You may also be interested in this question: Server Room Survival Kit. Thank you!

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  • Copy .exe to Explorer.exe!

    - by Phillip
    What would happen if an ordinary .exe file is copied to explorer.exe? Will it be automatically running as long as explorer.exe is running? This seems like a major security whole...is it even possible? Does anti-virus protect against that sort of thing?

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  • How to remove iso 9660 from USB?

    - by a_m0d
    I have somehow managed to write an iso 9660 image onto my USB drive, which makes all my computer think that the device is actually a CD. I have tried various methods of removing this partition, but nothing seems to work. I have tried fdisk, which says $ fdisk -l /dev/sdb Cannot open /dev/sdb parted crashes when I try to use it on this device. I have even tried $ dd if=/dev/zero of=/dev/sdb but it just hangs with no output (either on screen or on disk). However, when I plug the USB in, it does mount, and I can view (but not edit) the files on it. edit: now the result is $ dd if=/dev/zero of=/dev/sdb dd: opening `/dev/sdb': Read-only file system I have also tried re-formatting it on Windows, but it gets to the end of the format process and then says "Couldn't format the drive". How can I remove this partition and get my whole USB drive back to normal again? EDIT 1: Trying a simple mkfs doesn't work: $ sudo mkfs -t vfat /dev/sdb mkfs.vfat 3.0.0 (28 Sep 2008) mkfs.vfat: Will not try to make filesystem on full-disk device '/dev/sdb' (use -I if wanted) I can't do mkfs on /dev/sdb1 because there is no such partition, as shown:$ ls /dev | grep sdb sdb EDIT 2: This is the information posted by dmesg when I plug the device in:$ dmesg . . (snip) . usb 2-1: New USB device found, idVendor=058f, idProduct=6387 usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-1: Product: Mass Storage usb 2-1: Manufacturer: Generic usb 2-1: SerialNumber: G0905000000000010885 usb-storage: device found at 4 usb-storage: waiting for device to settle before scanning usb-storage: device scan complete scsi 6:0:0:0: Direct-Access FLASH Drive AU_USB20 8.07 PQ: 0 ANSI: 2 sd 6:0:0:0: [sdb] 4069376 512-byte hardware sectors (2084 MB) sd 6:0:0:0: [sdb] Write Protect is off sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 sd 6:0:0:0: [sdb] Assuming drive cache: write through sd 6:0:0:0: [sdb] 4069376 512-byte hardware sectors (2084 MB) sd 6:0:0:0: [sdb] Write Protect is off sd 6:0:0:0: [sdb] Mode Sense: 03 00 00 00 sd 6:0:0:0: [sdb] Assuming drive cache: write through sdb: unknown partition table sd 6:0:0:0: [sdb] Attached SCSI removable disk sd 6:0:0:0: Attached scsi generic sg2 type 0 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A SELinux: initialized (dev sdb, type iso9660), uses genfs_contexts CE: hpet increasing min_delta_ns to 15000 nsec This shows that the device is formatted as ISO 9660 and that it is /dev/sdb. EDIT 3: This is the message that I find at the bottom of dmesg after running cfdisk and writing a new partition table to the disk:SELinux: initialized (dev sdb, type iso9660), uses genfs_contexts sd 17:0:0:0: [sdb] Device not ready: Sense Key : Not Ready [current] sd 17:0:0:0: [sdb] Device not ready: < ASC=0xff ASCQ=0xffASC=0xff < ASCQ=0xff end_request: I/O error, dev sdb, sector 0 Buffer I/O error on device sdb, logical block 0 lost page write due to I/O error on sdb

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  • Abnormal hangs and restarts Ubuntu 8.04

    - by jai-ho
    Hi, I am using Ubuntu 8.04 LTS and seeing the following behaviors: The system hangs after a while and becomes completely unresponsive. The system sometimes restarts itself ! Can you please help me identify what is the problem? Also please mention where should I look for the possible cause of this error. Thanks. EDIT: Got the following from the dmesg output (the system got hung and had to restart) [ 15.452015] Driver 'sr' needs updating - please use bus_type methods [ 15.456882] Driver 'sd' needs updating - please use bus_type methods [ 15.457987] sr0: scsi3-mmc drive: 52x/52x writer cd/rw xa/form2 cdda tray [ 15.457993] Uniform CD-ROM driver Revision: 3.20 [ 15.458058] sr 0:0:1:0: Attached scsi CD-ROM sr0 [ 15.463028] sd 1:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB) [ 15.463051] sd 1:0:0:0: [sda] Write Protect is off [ 15.463055] sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 15.463083] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 15.463151] sd 1:0:0:0: [sda] 156301488 512-byte hardware sectors (80026 MB) [ 15.463167] sd 1:0:0:0: [sda] Write Protect is off [ 15.463171] sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 15.463197] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 15.463202] sda:<5sr 0:0:1:0: Attached scsi generic sg0 type 5 [ 15.464634] sd 1:0:0:0: Attached scsi generic sg1 type 0 [ 15.470120] sda1 sda2 < sda5 [ 15.495536] sd 1:0:0:0: [sda] Attached SCSI disk [ 15.759549] Attempting manual resume [ 15.759554] swsusp: Resume From Partition 8:5 [ 15.759556] PM: Checking swsusp image. [ 15.759742] PM: Resume from disk failed. [ 15.779964] EXT3-fs: INFO: recovery required on readonly filesystem. [ 15.779970] EXT3-fs: write access will be enabled during recovery. [ 19.904204] kjournald starting. Commit interval 5 seconds [ 19.904235] EXT3-fs: sda1: orphan cleanup on readonly fs [ 19.904245] ext3_orphan_cleanup: deleting unreferenced inode 303260 [ 19.904304] ext3_orphan_cleanup: deleting unreferenced inode 303329 [ 19.932763] ext3_orphan_cleanup: deleting unreferenced inode 3801871 [ 19.932785] ext3_orphan_cleanup: deleting unreferenced inode 3801874 [ 19.932798] ext3_orphan_cleanup: deleting unreferenced inode 3801910 [ 19.951253] ext3_orphan_cleanup: deleting unreferenced inode 3801912 [ 19.951266] ext3_orphan_cleanup: deleting unreferenced inode 3801914 [ 19.951278] ext3_orphan_cleanup: deleting unreferenced inode 3959212 [ 19.951299] ext3_orphan_cleanup: deleting unreferenced inode 3959213 [ 19.960335] ext3_orphan_cleanup: deleting unreferenced inode 3959215 [ 19.963531] ext3_orphan_cleanup: deleting unreferenced inode 3801875 [ 19.963545] ext3_orphan_cleanup: deleting unreferenced inode 3663727 [ 19.963565] ext3_orphan_cleanup: deleting unreferenced inode 3663708 [ 19.963577] ext3_orphan_cleanup: deleting unreferenced inode 4072122 [ 19.963597] ext3_orphan_cleanup: deleting unreferenced inode 4072157 [ 19.968616] ext3_orphan_cleanup: deleting unreferenced inode 4072159 [ 19.970252] ext3_orphan_cleanup: deleting unreferenced inode 4072160 [ 19.970264] ext3_orphan_cleanup: deleting unreferenced inode 4072161 [ 19.992889] ext3_orphan_cleanup: deleting unreferenced inode 4072264 [ 19.992903] ext3_orphan_cleanup: deleting unreferenced inode 4072267 [ 19.999585] ext3_orphan_cleanup: deleting unreferenced inode 4072268 [ 20.008329] ext3_orphan_cleanup: deleting unreferenced inode 4072270 [ 20.008343] ext3_orphan_cleanup: deleting unreferenced inode 4072123 [ 20.008360] ext3_orphan_cleanup: deleting unreferenced inode 4072452 [ 20.008374] ext3_orphan_cleanup: deleting unreferenced inode 4072453 [ 20.008385] ext3_orphan_cleanup: deleting unreferenced inode 4072124 [ 20.008398] ext3_orphan_cleanup: deleting unreferenced inode 311574 [ 20.008413] ext3_orphan_cleanup: deleting unreferenced inode 967890 [ 20.008420] EXT3-fs: sda1: 28 orphan inodes deleted [ 20.008423] EXT3-fs: recovery complete. [ 20.082622] EXT3-fs: mounted filesystem with ordered data mode. [ 29.025379] input: PC Speaker as /devices/platform/pcspkr/input/input2 [ 29.187133] Linux agpgart interface v0.102 [ 29.225338] iTCO_vendor_support: vendor-support=0 [ 29.259662] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.02 (26-Jul-2007)

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  • .htaccess password not working for all files

    - by hapalibashi
    My .htaccess on Rackspace looks like this: AuthType Basic AuthName "Restricted Area" AuthUserFile /path-to-htdocs/.htpasswd Require valid-user Now I would expect this to password protect the whole directory, however, it only protects files with .php extension! What is wrong with it? Is it something in the default http.conf that I cannot override? The path used to .htpasswd is correct as it accepts the user/passwd in the case of .php

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  • Full Disk Encryption for Mac (Not PGP)

    - by Andy
    I purchased PGP Whole Disk Encryption for my Macbook Pro, and it's exactly what I need. After the Symantec acquisition, PGP no longer sells single licenses of the software so I can't purchase a second copy for my iMac. Since I can no longer buy PGP Whole Disk Encryption, can anyone suggest an alternative? I'm currently using Filevault, but I specifically want whole disk encryption. I'm using a quad-core i7 iMac running Snow Leopard and I'm also hoping to protect my Windows Bootcamp partition.

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  • Recommended apps for new desktop machine install?

    - by Eddie Parker
    I'm hoping to harness the collective tips of superuser to gather recommended apps/configurations to keep a new desktop clean, virus free, and hopefully lower software rot. I ask because I've recently come across tools like dropbox, deepfreeze, returnil, etc, and I'm curious what other ones are out there to protect a new box. I personally am interested in Windows, but feel free to comment on whatever OS you'd like, freeware or otherwise. Ideally specify the price/OS in your answer(s).

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  • How to unlock and remove a protected partition from Prestigio USB stick?

    - by mr.b
    Ok, so, I have one of those fancy schmancy devices, which is given to me by a frustrated friend of mine. Device is a Prestigio Leather 8GB, which identifies itself to Linux host as: Bus 001 Device 006: ID 1307:0165 Transcend Information, Inc. 2GB/4GB Flash Drive Kernel messages as USB device is plugged in: kernel: [ 2769.580042] usb 1-9: new high speed USB device using ehci_hcd and address 7 kernel: [ 2769.714782] scsi8 : usb-storage 1-9:1.0 kernel: [ 2770.713937] scsi 8:0:0:0: Direct-Access 8192MB flash drive 1.00 PQ: 0 ANSI: 2 kernel: [ 2770.714535] scsi 8:0:0:1: Direct-Access 8192MB flash drive 1.00 PQ: 0 ANSI: 2 kernel: [ 2770.715734] sd 8:0:0:0: Attached scsi generic sg3 type 0 kernel: [ 2770.716108] sd 8:0:0:1: Attached scsi generic sg4 type 0 kernel: [ 2770.722175] sd 8:0:0:0: [sdc] 962560 512-byte logical blocks: (492 MB/470 MiB) kernel: [ 2770.722657] sd 8:0:0:0: [sdc] Write Protect is on kernel: [ 2770.731078] sd 8:0:0:1: [sdd] 14012416 512-byte logical blocks: (7.17 GB/6.68 GiB) kernel: [ 2770.731215] sdc: kernel: [ 2770.738251] sd 8:0:0:1: [sdd] Write Protect is off kernel: [ 2770.880328] kernel: [ 2770.885876] sd 8:0:0:0: [sdc] Attached SCSI removable disk kernel: [ 2770.887442] sdd: unknown partition table kernel: [ 2771.049605] sd 8:0:0:1: [sdd] Attached SCSI removable disk So, symptoms are typical for U3-like devices: two separate devices inside of a single flash device. Windows sees it also as two identical usb devices, and mounts two separate drives to system, whereas first one presents itself as a CDROM device, holding a write-protected content, and second is a regular flash-disk partition, that "can" be written to. However, it seems like it's broken in some weird way, since it won't let me write anything to it, format it, nothing, but that's not the issue right now. Question: How can I unlock entire USB stick so it appears to system as a single, 8GB device which can be partitioned and used normally, without restrictions? Since it appeared to be an U3 device, I have tried standard utilities: both U3 Uninstaller by u3.com (found on SoftPedia), and opensource u3_tool from sourceforge (on both Windows and Linux). First utility failed to even detect USB stick as U3 device (simply stood idle while I re-plugged stick several times), while second tool failed with some obscure error about SCSI command unable to do something (I might be able to provide exact errors when I switch back to windows). u3_tool -i /dev/sg3 (Display device info) fails with u3_partition_info() failed: Device reported command failed: status 1 ...and every other option fails with same error, minus first part which states which command precisely has failed. So, apparently, this isn't a U3 device. Or, if it is, it doesn't behave like one. I read on a few occasions that this device protection is done by special command sent to device which tells it to lock itself, and so there should be an unlock command, that would set drive straight. Does anyone have any idea about what could I do to this device to fix it? P.S. I also mentioned a problem with being unable to use second "drive", but I'll tackle that problem when (and if) I manage to merge those two devices into one...

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  • dlink arp spoofing prevention

    - by Wiploo
    someone can help me understanding arp spoofing prevention on dlink dgs-3100 (ftp://ftp2.dlink.com/PRODUCTS/DGS-3100-48P/REVA/DGS-3100-48P_MANUAL_3.60_EN.PDF). I'd like to protect my gateway MAC/IP from spoofing so I'have tryed to add a rule "IP: 192.168.1.1 MAC: aa-aa-aa-aa-aa-aa" flagging all the port of the switch as untrusted. When I apply the rule I lose connection to all pc attached to the switch. I certanly made some errors, but I can't understand what is wrong. Best Regards

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