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• syslog log of TCP packet

  - by com

  Occasionally, I noticed a lot of following messsages in syslog Nov {datetime} hostname kernel: [8226528.586232] AIF:PRIV TCP packet: IN=eth0 OUT= MAC={mac} SRC={sourceip} DST={destinationip} LEN=60 TOS=0x00 PREC=0x00 TTL=63 ID=20361 DF PROTO=TCP SPT=39950 DPT=37 WINDOW=14600 RES=0x00 SYN URGP=0 On the Internet, I found that DOS attack may cause such type of output, unfortunately, I don't understand what does this log mean. The only thing is clear for me is this log is related to network. The source host is the host where nagios is installed. Does it mean nagios somehow does behave well? And what does it mean at all?

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• ASP.NET Free Online E-books or tutorials

  - by the_drow

  I need to learn programming ASP.NET with C# but I can't find a good online book to do so. Is there an ASP.NET equivalent to Diving into python? All of the books are quite expensive. I already know Java and C++, are there any major differences between them and C#? If so are there materials that cover only the differences and what I should learn?

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• Fit page(and its content) size in silverlight

  - by Meysam Javadi

  i have a page that have some control on it. i add some element with programming in code behind. how can i this: when i add control that is larger than its container, show Scroll?(i used ScrollViewr but i don't know size of container because it resize in Run-Time to fill Browser)

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• UIWebView doesn't scroll to the bottom of the webpage loaded/created

  - by tom

  I have a UIWebView inside a normal UIViewController. The content of the UIWebView is programming/dynamically created in my program, and it could be very long (multiple table rows). Somehow, after loading, the page won't scroll more then one and half screen of content when swipe on the screen. Because of that I can only see the beginning few rows of data, but not the many others after them. Why is that?

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• Recover Partition-Table still present in running system

  - by theomega

  Hy, I accidentially overwrote the first 1M of my harddisk on linux (using dd). So, the partition-table is gone. I can still access all partition (except the first one) using /dev/sda2 (and so on), so the data is still there. I only need the partition boundaries to restore the table. How can I do this? The Linux-Kernel must still know them because all mount-points still work. fdisk -l /dev/sda doesn't work because it acctualy reads the partition table. Thanks!

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• How can I learn Android?

  - by Vijay Kansal

  I am a newcomer to Android. I know the C And C++ programming languages, but I do not know Java . I want to learn Android right from basics, but I could not find any relevant link or e-book that can help me. Can I begin to learn Android without knowing Java or should i go to learn Java first? From where should I learn Android which should be easy to grasp and learn for a newcomer like me.

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• changing wallpapers automatically in android

  - by pranay

  hi, i am new to android programming and want to develop an application similar to vista where the wallpaper changes automatically , so how should i go about it, please could someone guide me on it? thanks

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• Where do I find the current C or C++ standard documents?

  - by christoffer

  For many questions, especially for C-related ones, the answer seems to be found in "the standard". However, where do we find that - online? Googling can sometimes feel futile, again especially for the C standards, since they are drowned in the flood of discussions on programming forums ;) To get this started, since these are the ones I am searching for right now, where are there good online resources for: C89 C99 C++03

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• Where to start when getting into web application development

  - by Aaron

  I am looking to get into web application development. I am an undergrad CS major with experience in programming desktop apps, but with only basic knowledge regarding how web apps work. Any suggestions of where to start? Javascript, php, perl, ruby, python? Should I look into frameworks like django, seaside, ruby on rails, etc at first or wait until I am more experienced to use those?

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• Ways to setup a ZFS pool on a device without possibility to create/manage partitions?

  - by Karl Richter

  I have a NAS where I don't have a possibility to create and manage partitions (maybe I could with some hacks that I don't want to make). What ways to setup multiple ZFS pools with one partition each (for starters - just want to use deduplication) exist? The setup should work with the NAS, i.e. over network (I'd mount the images via NFS or cifs). My ideas and associated issues so far: sparse files mounted over loop device (specifying sparse file directly as ZFS vdev doesn't work, see Can I choose a sparse file as vdev for a zfs pool?): problem that the name/number of the assigned loop device is anything but constant, not sure how increasing the number loop device with kernel parameter affects performance (there has to be a reason to limit it to 8 in the default value, right?)

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• Hibernate's version values in Grails app

  - by xain

  I'm looking at a database dump file, and I see many records in various tables with their version number set in values other than 0 (even 94 in one case). I understand it has to do with hibernate locking strategy, but my concern is that today is Sunday, and the site has almost no visitors so is: is this normal ? Or is there a known hibernate bug or even some programming malpractice producing this ?

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• What potential do you see in Silverlight?

  - by Cyril Gupta

  Silverlight has been available since quite some time, and Silverlight 2 allows .Net programming on the front-end. I've been thinking about the apps that I can make using Silverlight, but I can't decide if I should go for development in Silverlight because i am still concerned about accessibility and acceptance. What potential do you see in Silverlight judging from the current trends, and what do you think Silverlight will be used for in the coming years?

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• How to execute machine language from memory?

  - by Mike Curry

  I wrote a program to compile a simple text program to a compiled executable... Is it possible that I can load an executable to memory an some how point a pc counter to the memory space at will? Here is what I made that I would like to store the programs to memory for execution on demand... Kind of wanting to make a little web language like php but compile it... Just for learning. http://spiceycurry.blogspot.com/2010/05/simple-compilable-programming-language.html

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• iPage.com affilates get $115 for a $36 dollar sale ???

  - by user296516

  Hi, I understand that it's not a programming question, but still maybe someone here knows how comes that www.ipage.com is offering $115.00 to affiliates for every new customer ( that would buy, say, a $36 hosting plan ) ? Where's the catch?

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• Best way to password protect a folder?

  - by Mahmoud

  I am trying to create a similar way to Cpanel password protect directory, where a pop up comes out asking the user for a username and a password, but Cpanel way is amazing but my client doesn't know anything on how to do that, so i wanted to create a pop up msgbox informing the visitor to enter a user name and a password, and i totaly confused on how to create it, and which programming language support similar to CPanel

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• What is the most painful development related mistake you have done and what you have learned?

  - by burak ozdogan

  What is the most painful programming mistake you have done and what lesson you have learn after? I guess mine was making a release to production on the development code which was not tested yet. The lesson-learned: Delete any projects that can trigger a release on the live application from CCTray. I only add them when a release to production is necessary since then. And once I am done, I delete them from my project lists.

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• Developers portfolios

  - by Alex

  I'm wondering if you have one, or u know any developer/programmer online portofolio. I know many web developers have one (and in many cases very well designed), but not any C++ developer (for example). On the net there are only some good blogs about some programming language, but in many cases these are extremely poor from a design point of view and i'd say very "nerdy".

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• Accessing the "super of this" in Java

  - by gerdemb

  This is what I'm doing now. Is there a better way to access the super class? public class SearchWidget { private void addWishlistButton() { final SearchWidget thisWidget = this; button.addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { // A better way to access the super class? // something like "this.super" ...? workWithWidget(thisWidget); } } } } I'm programming with Google Web Toolkit, but I think this is really a generic Java question.

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• Assigning a Background image to CGRect Object!

  - by taimur-hamza

  hi guys , I am new to iphone Programming . I have a rectangle on which i display some data. I want to assign an image to its background. And is it possible that the data would be visible even after the image is assigned . Any idea how i can do it ? Thanks

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• How do I update another class with the status of a method?

  - by Bi

  I am new to C# and OO programming. What is the best way to send a status of a class-method to another class? Thanks

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• Are there machine (and human) readable specification languages for algorithm collections and meta-li

  - by Jabavu Adams

  Is there high-level language out there for describing algorithms, that's geared towards specification, rather than implementation? The idea would be to have a machine-readable archive of standard algorithms, with machine-readable annotations on trade-offs, and variants. I'm thinking of something like CycL / OpenCyC, but for algorithms and programming patterns.

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• Override generic methods in c#

  - by Pascal

  I thought I can not override generic methods of a derived class. http://my.safaribooksonline.com/book/programming/csharp/9780071741163/generics/ch18lev1sec13 The code in this link runs fine. The overriden method is called although the instance type of the base class is used and not the instance of the derived type. Now I am confused because a former question of mine Type parameter declaration must be identifier not a type is about calling the overriding generic method with the instance of base type which did NOT work!

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• why multipart/x-mixed-replace is needed for Comet?

  - by Morgan Cheng

  I'm reading this article about Comet http://en.wikipedia.org/wiki/Comet_(programming). It mentions that browser should support multipart/x-mixed-replace to make XmlHttpRequest Streaming possible. Why this multipart/x-mixed-replace is necessary? Without this header, HTTP response can still be chunked and sent piece by piece to browser, right?

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• How do I configure a swap partition using swapspace

  - by jcalfee314

  I finally have the swapspace project installed and running (via init.d). The purpose is to have a dynamically re-sizing swap partition. I'm clueless however on how to use it. It has good documentation but just does not go into that last step. How to I configure a swap partition using swapspace? The process is probably the same for any 3rd party program that would provide a swap space implementation to the kernel. I know this was intended to run as a process because the project provides an init.d script.

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• Top causes of slow ssh logins

  - by Peter Lyons

  I'd love for one of you smart and helpful folks to post a list of common causes of delays during an ssh login. Specifically, there are 2 spots where I see a range from instantaneous to multi-second delays. Between issuing the ssh command and getting a login prompt and between entering the passphrase and having the shell load Now, specifically I'm looking at ssh details only here. Obviously network latency, speed of the hardware and OSes involved, complex login scripts, etc can cause delays. For context I ssh to a vast multitude of linux distributions and some Solaris hosts using mostly Ubuntu, CentOS, and MacOS X as my client systems. Almost all of the time, the ssh server configuration is unchanged from the OS's default settings. What ssh server configurations should I be interested in? Are there OS/kernel parameters that can be tuned? Login shell tricks? Etc?

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