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  • [GEEK SCHOOL] Network Security 7: Using the Action Center for Extra Security and Maintenance

    - by Ciprian Rusen
    In this lesson we will talk about another lesser-known security tool in Windows – the “Action Center”. This tool that has an impact on both how secure your system is and how well it is running from a maintenance perspective. The Action Center first made its appearance all the way back in Windows XP as the “Windows Security Center” and was such through Vista until being renamed in Windows 7.Click Here to Continue Reading

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  • ASP.NET MVC as a service host for SOA like architecture

    - by Delucia
    I'm creating a distributed application that includes a lot of services and I'm looking for the technology that allows me to create and manage a lot of services easily. I know managing and deploying windows services is not fun. I'm thinking of using ASP.NET MVC as service host of my services where each controller action becomes essentially a service and I can communicate with a service via simple HTTP request and responses and not have to deal with complexity if i use something like WCF. Services need to be isolated and asp.net requests are isolated as far as i know, i.e. if a request throws an exception it will not effect other running requests. But I still have questions about the management of the services. How will it be possible to see which services are running, stopping and resuming services. Also ASP.NET MVC are passive, i.e. they only do something upon a request but what if i want to service that initiates work by itself?

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  • Processor architecture

    - by asj
    While HDDs evolve and offer more and more space on less room, why are we "sticking with" 32-bit or 64-bit? Why can't there be a e.g.: 128-bit processor? (This is not my homework; I'm just a student interested beyond the things they teach us in informatics)

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  • Oracle Executive Network CFO - Milano 22 Maggio 2014

    - by Paolo Leveghi
    L'evento era il secondo degli incontri dedicati agli Execuive dei clienti Oracle. Abbiamo ascoltaro il Prof. Andrea Dossi, SDA Professor di Amministrazione, Controllo, Finanza Aziendale e Immobiliare parlare di: Strategic Performance Measurement Systems e cicli di Pianificazione e Controllo: quali legami? Alla fine della discussione lo Chef Daniel Canzian, titolare del ristorante Daniel, una delle novità del panorama gastronomico milanese ha intrattenuto gli intervenuti con un momento di show cooking in cui ha mostrato a tutti come cucinare i piatti che poi sono stati serviti a cena. I partecipanti hanno seguito con nolto interesse entrambe le parti dell'evento,  che si è dimostrato un ottimo connubio fra momenti di apprendimento e momenti di networking.

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  • Vlan and Switch setting - dummy

    - by Andras Sebestyen
    I need to speak tomorrow the network engineer and I would like to understand his so apologise for the Dummy question: In the school we have a cab with a 24 port Netgear manageable switch with an admin and curriculum VLAN settings. Usually, as I over heard, in the morning and around 4.30pm there are a slowdown period on the computers which connect to this switch. No one could track this back yet. Questions: What is the best way to track back this slowdown Would it be a temporary solution to physical separate the two network with 2 switches If that would work how can I link them together to be able to see the curriculum from the admin side. Do I need an extra router then? Too many questions but I have no clue where to start and the gentleman will be paid by hours... can you see where I am coming from?:) Could you guide me in the right direction please? Any comment would be appreciated and please send links if you down vote the question:)

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  • How does one network at software conferences?

    - by Billy ONeal
    Well... I'm still at Microsoft TechEd -- and the response to my last question was overwhelmingly "networking is the most useful part of software conferences". Problem: I have no idea how to even approach that task. I've always been kind of an introvert. At school and at work I've generally not had issues because there are enough extroverts around that approach me that I've made some awesome friends over the years. However, at conferences, it seems most are introverted like myself, and those who aren't seem to be salespeople. The couple of times I've felt okay approaching people it's been after a session where there's been healthy discussion throughout the whole room, and just when I get the nerve to go up and talk to some people, they leave and go on to other things. Are there books I can read? Advice I can take? Anything as far as approaching people one does not know? 'Cause every time I try I just feel like an awkward mess. :( (Oddly enough, I don't have problems speaking to a group of people -- it's the one-on-one things that trip me up :P) (Oh, and by the way, if anyone from here is also there and would like to meet to talk about things, I'm game :P)

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  • How can you enable SMB2.0 on a router running DD-WRT?

    - by jeffreypriebe
    I think the steps are something like: Install DD-WRT on a router with an external hard-drive Install Optware to get Samba Upgrade to Samba 3.6 (the link shows Samba 3.5, but using the NSLU2 optware packages, you can get 3.6 with built-in SMB2.0) ...then a miracle occurs... Then you can use SMB2.0 to connect to your share What is step 4? I can't find it on forums, etc. Am using Microsoft Network monitor to check for SMB2.0 connection, I'm on Windows 7 and have tried network connections on wireless and gigabit wired to the router. No joy. I doubt it matters, but to get ahead of the questions: DD-WRT v24-sp2 (10/26/10) big (SVN revision 15508M NEWD-2 K2.6 Eko) on Cisco/Linksys E3000

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  • [GEEK SCHOOL] Network Security 8: Keep Your System Updated for Security and Stability

    - by Ciprian Rusen
    Another important step in securing any computer or device is setting up automated updates. Your device’s security relies on your operating system, apps, plug-ins, and programs always being up to date. For example, using outdated Internet browsers and plug-ins like Adobe Flash, Java, or Silverlight represents a big security problem. There are many websites on the Internet that exploit security bugs in your browser or the plug-ins you have installed.Click Here to Continue Reading

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  • Ad-hoc connection between iPhone and Macbook Pro

    - by Phil Nash
    I sometimes find it useful to connect my iPhone to my Macbook Pro by creating an ad-hoc wireless network from the MBP and connecting to that from the iPhone. However, what I find is that sometimes this works and sometimes it doesn't. When it's not working the symptoms are usually that I see the ad-hoc SSID in the list of available networks on the iPhone, can connect to it from there (including entering my WEP key), and it shows up as the wifi network in use. However I don't get the wifi symbol in the taskbar (it remains as 3G) and attempting to use the connection (e.g. trying to connect to iTunes or Keynote using their respective Remote apps) fails saying that there is so wifi connection. I've tried rebooting both the iPhone and the MBP, recreating networks with different SSIDs and tried different channels - all to no avail! I'm especially puzzled that (a) sometimes it works just fine first time and (b) the Settings app seems to think its all connected fine. Is there anything else I should be trying?

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  • Executing remote script - Architecture

    - by Bruno Lee
    Hi, I want to make an application that executes a remote script. The user can create a script (probabily a LUA script) then stores it in the server. Then he can uses an API for execute the script. I was thinking that API could be a webservice. So my questions are: I need high performance to execute the script. So my first choice was LUA script. Someone has another sugestion? Cause I need high perfomance, I was thinking if the webservice is the best solution. Maybe I could create a TCP/IP Windows Service that hold the users request. It is important to say that I will have many user executing scripts at the same time. So I will have a concurrency problem. My scripts will query in a database. I will use Tokyo Cabinet or Tokio Tyrant. I think Tokio Tyrant is the only solution cause I will have many requests. For perfomance, Do I need to make a connection pooling? Is there anyway to share variables between webservices requests? To make the webservice or the Windows service i was thinking to use C++. Can someone help with these questions? thanks

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  • Snow Leopard can see Windows shares in Finder but can't connect

    - by Randy Miller
    I have an iMac with the latest version of Snow Leopard on it. I have a NAS drive and a Windows machine that both show up in the Finder's 'Shared' section. However, if I click on them, Finder says "Connection Failed". Clicking on 'Connect As...' gives an error dialog that says "The server 'blah' may not exist or it is unavailable at this time." Points of interest: All machines are receiving their IP/DNS info from the router using DHCP. I have a Mac Mini on the same network that connects to the NAS drive and windows machine perfectly with no config (i.e. worked out of the box). Both Macs are on the same version of Snow Leopard. There is no password required to access the NAS share. I've never setup a WINS server on any machines and all machines are using 'workgroup' by default. I've tried putting "workgroup" in the Mac's workgroup entry and have tried leaving it blank, neither solves the problem. Here are some things I have tried: Finder-Connect To Server: smb:///share. This works, but by name does not. Terminal-mount_smbfs //@/share share. This also works by ip, but not be name, resulting in "mount_smbfs: server connection failed: No route to host". If I put the IP address of the NAS in the WINS server entry in the Mac's network setup, I can connect by name. It obviously seems to be a name resolution error, but I can't figure out why. The only thing that has changed since it used to work is that I got a new router that now gives out DHCP (all machines are dhcp clients) addresses of 192.168.x.x, but used to be 10.0.x.x. I've grep'd through everything that might have saved that old address, but can't find anything. It's also worth noting that the second Mac (the one that connects successfully) was added to the network after the router change. Please let me know if there are additional points of information needed to troubleshoot this further. Thanks, Randy

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  • how design architecture of .NET CF WinForm?

    - by MicTech
    I'm starting with .NET CF WinForm application and I have some experience with .NET WinForm. What is better for UI, form for each dialog or one form and changing user controls on that form? I'm asking for that, because screen on mobile devices are very small and I designed more then ten different screens for my application.

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  • Architecture with NHibernate and Repositories

    - by Matthew
    I've been reading up on MVC 2 and the recommended patterns, so far I've come to the conclusion (amongst much hair pulling and total confusion) that: Model - Is just a basic data container Repository - Provides data access Service - Provides business logic and acts as an API to the Controller The Controller talks to the Service, the Service talks to the Repository and Model. So for example, if I wanted to display a blog post page with its comments, I might do: post = PostService.Get(id); comments = PostService.GetComments(post); Or, would I do: post = PostService.Get(id); comments = post.Comments; If so, where is this being set, from the repository? the problem there being its not lazy loaded.. that's not a huge problem but then say I wanted to list 10 posts with the first 2 comments for each, id have to load the posts then loop and load the comments which becomes messy. All of the example's use "InMemory" repository's for testing and say that including db stuff would be out of scope. But this leaves me with many blanks, so for a start can anyone comment on the above?

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  • Looking for a .NET 3.5 / J2EE architecture concept comparison article/chart

    - by Edward Tanguay
    We are thinking about combining .NET technology with Java technology (WCF, JBoss/ESB, MOM, WPF, WF) and I need to have a high-level idea of what are the apples and oranges in the .NET 3.5 and Java worlds. Does anyone know of a good, clear article or better yet a simple chart which answers questions such as: WCF in the Java world is __ the equivalent of WPF in the Java world is _ the closes thing to JBoss in the .NET world is _ the JVM and CLR are essentially the same except for these differences: .... in the Java world you don't have the concept of WF/WCF/WPF, instead you have .... there is no "LINQ" in the Java world yet, but you can use ___ the closest you get to ADO.NET Data Services in the Java world is .... I'm not looking to debate this so I'm not looking for "fighting points", I just need a neutral what-is-what chart comparing the two worlds.

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  • VPN says "successfully connected" and I'm internet-connected, but I can't access network resources

    - by Al S.
    To explain, I'm a university student who uses the VPN to access sites like Nature, PhysicsToday, etc. I have this VPN working on Windows 7 and I've got access to nearly every journal. However on my Ubuntu 12.04 partition I'm able to connect to the internet (in fact I'm typing this while connected through the VPN presumably) but journals have locked me out. Is there a problem on my end that I can fix?

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  • AD - DirectoryServices: VBNET2.0 - Speaking architecture...

    - by Will Marcouiller
    I've been mandated to write an application to migrate the Active Directory access models to another environment. Here's the context: I'm stuck with VB.NET 2005 and .NET Framework 2.0; The application must use the Windows authenticated user to manage AD; The objects I have to handle are Groups, Users and OrganizationalUnits; I intend to use the Façade design pattern to provider ease of use and a fully reusable code; I plan to write a factory for each of the objects managed (group, ou, user); The use of Attributes should be useful here, I guess; As everything is about the DirectoryEntry class when accessing the AD, it seems a good candidate for generic types. Obligatory features: User creates new OUs manually; User creates new group manually; User creates new user (these users are services accounts) manually; Application reads an XML file which contains the OUs, groups and users to create; Application informs the user about the OUs, groups and users that shall be created; User specifies the domain environment where to migrate the XML input file designated objects; User makes changes if needed, and launches the task operations; Application performs required by the XML input file operations against the underlying AD as specified by the user; Application informs the user upon completion. Linear features: User fetches OUs, groups, users; User changes OUs, groups, users; User deletes OUs, groups, users; The application logs AD entries and operations performed, plus errors and exceptions; Nice-to-have features: Application rollbacks operations on error or exception. I've been working for weeks now to get acquainted with the AD and the System.DirectoryServices assembly. But I don't seem to find a way to be fully satisfied with what I'm doing and always looking for better. I have studied Bret de Smet's Linq to AD on CodePlex, but then again, I can't use it as I'm stuck with .NET 2.0, so no Linq! But I've learned about Attributes, and seen that he's working with generic types as he codes a DirectorySource class to perform the operations for OUs, groups and users. Any suggestions? Thanks for any help, code sample, ideas, architural solution, everything!

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  • Asp.net mvc, entity framework, Poco - Architecture

    - by user1576228
    I have a "small" enterprise application, aspnet mvc 3 + entity framework with POCO entity and repository pattern. I structured the solution in 4 projects: POCO entities Domain model Services web application When the application performs a query on the database, use one of the services provided, the service uses the repository and the small classes, as a result I have some dynamic proxy objects that I would like to convert in my domain entities, before using them in mvc views, but I do not know how. Dovrebber be set as the translator? This approach is reasonable?

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  • Network Authentication when running exe from WMI

    - by Andy
    Hi, I have a C# exe that needs to be run using WMI and access a network share. However, when I access the share I get an UnauthorizedAccessException. If I run the exe directly the share is accessible. I am using the same user account in both cases. There are two parts to my application, a GUI client that runs on a local PC and a backend process that runs on a remote PC. When the client needs to connect to the backend it first launches the remote process using WMI (code reproduced below). The remote process does a number of things including accessing a network share using Directory.GetDirectories() and reports back to the client. When the remote process is launched automatically by the client using WMI, it cannot access the network share. However, if I connect to the remote machine using Remote Desktop and manually launch the backend process, access to the network share succeeds. The user specifed in the WMI call and the user logged in for the Remote Desktop session are the same, so the permissions should be the same, shouldn't they? I see in the MSDN entry for Directory.Exists() it states "The Exists method does not perform network authentication. If you query an existing network share without being pre-authenticated, the Exists method will return false." I assume this is related? How can I ensure the user is authenticated correctly in a WMI session? ConnectionOptions opts = new ConnectionOptions(); opts.Username = username; opts.Password = password; ManagementPath path = new ManagementPath(string.Format("\\\\{0}\\root\\cimv2:Win32_Process", remoteHost)); ManagementScope scope = new ManagementScope(path, opts); scope.Connect(); ObjectGetOptions getOpts = new ObjectGetOptions(); using (ManagementClass mngClass = new ManagementClass(scope, path, getOpts)) { ManagementBaseObject inParams = mngClass.GetMethodParameters("Create"); inParams["CommandLine"] = commandLine; ManagementBaseObject outParams = mngClass.InvokeMethod("Create", inParams, null); }

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  • Support TrendNet TEW-643PI Wireless N network card

    - by Matthew Rigdon
    Hello, Has anyone been able to get a TrendNet TEW-643PI Wireless N card working under UBUNTU, if so what drivers did you use and where did you find them. I have this card and would really like to be able to use it in my computer. I found drivers that may work but dont know how to get ubuntu to pick up the drivers. I have tried the Additional Drivers option but cannot seem to get ubuntu to pick up the drivers. Thanks.

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  • Reoccurring error "The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to

    - by tuseau
    Hi, I keep receiving this error in my ASP.NET web app (below). I give the Network Service account rights to the specified folder, it runs fine for a while, but then within a day or two the error reoccurs, as the Network Service account has been removed from the rights for the folder. Adding it again fixes it, but why does it keep reocurring? Could it be anything to do with using Interop components (such as WMI)? Here's the full error: Server Error in '/DriveMonitor' Application. The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [HttpException (0x80004005): The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.] System.Web.HttpRuntime.SetUpCodegenDirectory(CompilationSection compilationSection) +8918190 System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags) +152 [HttpException (0x80004005): The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +8890735 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +85 System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +259

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  • NIC: Changing Link Speed & Duplex to Full Duplex Is Drastically Slower

    - by rism
    I have an old Win Xp box with a 100 PRO/100 VE NIC and connecting to a Win 7 box with gigabit NIC via an ASUS gigabit router and peer to peer. I was getting 76% network utilisation on the XP machine using AUTO as the value for Link Speed and Duplex which is fine. But I decided to see what would happen if i selected Full Duplex 100Mbps on the XP box. I thought at worst it would be as good as auto detect since the Win 7 box it's transferring to is faster. Instead network utilisation dropped to 0.12% (as in a 10th of a percent) and the transfers just timed out. No biggie to reverse back to Auto but my question is why is full duplex such a dog? Im not "stuck" but just dont understand. There are only 2 machines here connecting through a router so i cant see how that would cause alot of collisions etc (if thats the problem).

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  • Multiple vulnerabilities in Network Time Protocol (NTP)

    - by chandan
    CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2009-0021 Improper Authentication vulnerability 5.0 Firmware SPARC T3-4 SPARC: 147317-01 SPARC T3-2 SPARC: 147316-01 SPARC T3-1B SPARC: 147318-01 SPARC T3-1 SPARC: 147315-01 Netra SPARC T3-1B SPARC: 147320-01 Netra SPARC T3-1 SPARC: 147319-01 Netra SPARC T3-1BA SPARC: 144609-07 CVE-2009-0159 Buffer Overflow vulnerability 6.8 CVE-2009-3563 Denial of Service (DoS) vulnerability 6.4 This notification describes vulnerabilities fixed in third-party components that are included in Sun's product distribution.Information about vulnerabilities affecting Oracle Sun products can be found on Oracle Critical Patch Updates and Security Alerts page.

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  • How To Knock Into Your Network (DD-WRT)

    - by Aviad
    Have you ever wanted to have that special “dorm knock” with your router, as to have it only “open the door” when the secret knock has been recognized? How-To Geek explains how to install the Knock daemon on DD-WRT. Image by Bfick and Aviad Raviv If you haven’t already, be sure and checkout previous articles in the series: Turn Your Home Router Into a Super-Powered Router with DD-WRT How To Install Additional Software On Your Home Router (DD-WRT) How to Remove Advertisements with Pixelserv on DD-WRT Assuming you are familiar with those topics, keep reading. Keep in mind that this guide is a little more technical, and beginners should be careful when modding their router. How To Properly Scan a Photograph (And Get An Even Better Image) The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage

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