General :: Syn-cache Mechanism - NetBSD Project?
Jul 27, 2010
I have a general question and decided to post it here. Hopefully, I have picked a correct category. The thing I have been trying to figure out is the syn-cache mechanism. I know that it used to be utilized as a method to mitigate the impact of (D)DoS attacks. I would like to know what happened with it? Is it still added to the Linux systems? Perhaps I am missing something, and cannot find the correct man page about it. Is it the thing, that it is only for NetBSD project?
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Jan 11, 2010
i want to know, what is vpath mechanism in makefile?i did google search this,but i couldn't understand it as i am beginner in linux os. or either give me few simple links related to vpath mechanism.
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Feb 23, 2011
When using RPM/YUM or any other package manager, is the old version of that program deleted and then follow by an installation of the latest update? example:
nautilus-2.16.2-7.el5 update to nautilus-2.91.6-3.el5
will nautilus-2.16.2-7.el5 be uninstalled and then follow by an installation of nautilus-2.91.6-3.el5?
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Nov 22, 2010
I am reading slab allocator, it defines slab cache, i am quite confuse is it same as hardware cache?
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Apr 28, 2011
I am working on tracing the signal handling mechanism in linux kernel internallly. For that, i build the kernel. Now, i want to trace the signal handling mechanism in the old kernel. I got to about SYSLOG and PRINTK for this. But, how to use these tools exactly in tracing the handling of signals internally ?. Is, there any tool similar to backtrace to do that?. How the call flow is done internally ?
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Sep 7, 2010
I have 4 Linux machines with cluster.My target is to find all kind of IP address (xxx.xxx.xxx.xxx) in every file in the linux system remark: need to scan each file in the linux system and verify if the file include IP address if yes need to print the IP as the following
more /etc/inet/file.example1
182.23.2.4
255.255.0.0
10.10.1.1
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Sep 24, 2009
I don't understand this error nor do I know how to solve the issue that is causing the error. Anyone care to comment?
Quote:
Error: Caching enabled but no local cache of //var/cache/yum/updates-newkey/filelists.sqlite.bz2 from updates-newkey
I know JohnVV. "Install a supported version of Fedora, like Fedora 11". This is on a box that has all 11 releases of Fedora installed. It's a toy and I like to play around with it.
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Jan 5, 2011
I was laughing about klackenfus's post with the ancient RH install, and then work has me dig up an old server that has been out of use for some time. It has some proprietary binaries installed that intentionally tries to hide files to prevent copying (and we are no longer paying for support or have install binaries), so a clean install is not preferable.
Basically it has been out of commission for so long, that the apt-get upgrade DL is larger than the /var partition (apt caches to /var/cache/apt/archives).
I can upgrade the bigger packages manually until I get under the threshold, but then I learn nothing new. So I'm curious if I can redirect the cache of apt to a specified folder either on the command line or via a config setting?
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Mar 6, 2011
I installed squid cache on my ubuntu server 10.10 and it is work fine but i want to know how to make it cache all files like .exe .mp3 .avi ....etc. and the other thing i want to know is how to make my client take the files from the cache in the full speed. since am using mikrotik system to use pppoe for clients and i match it with my ubuntu squid
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Nov 7, 2010
can someone please confirm or correct my understanding of automatic upgrades in F14:as far as i currently understand the automatic update mechanism in F14 it works the following way:
1.) PackageKit (packagekitd) periodically checks for updates using YUM as it's backend and displays a nice icon in the tray to inform the user when upgrades are available.
2.) PackageKit (packagekitd) only runs when a user needs it and terminates afterward. When a interactive Desktop session is running, packagekitd is always running because it's spawned by the session manager.
3.) When using a console only system (without X) or when nobody is logging in on the local graphical console for a longer time i need yum-checkupdates for configuring automatic upgrades (same as done per default in CentOS).
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Sep 3, 2010
What is the appropriate mechanism for reporting bugs in KDE?
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Aug 19, 2010
In what situations we have to use RTTI dynamic_cast mechanism. What is the difference between dynamic_cast and static_cast
First I have searched in net. But I didn't the right one. So, I am posting here.
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Apr 22, 2011
That was released in October 2008, superseded in March 2009, and the current release is 1.4.3. It also doesn't work together with Python, but that's a more esoteric issue. Both of them are too clever by half, and the combination breaks the library loading mechanism. That's an old issue, with an old fix - though I haven't yet checked my rebuild, so there may be more than one problem.
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Sep 11, 2010
i need to find a way to securely authenticate a decryption mechanism of some sort where the authentication is provided remotely without any user-interaction. Right now i have a number of boxes that all inform a central server when they are online. When they do this an OpenVPN connection is set up between them and the server.
However, i have been given the task to ensure that the scripts involved in this process are encrypted by default. This requires some form of self-decryption, which to my mind kind of goes against the whole idea of encryption/authentication in the first place. I need some way to leave decrypted the bare essentials required to boot a box and securely connect to the central server automatically. Then the server would automatically send a key/passphrase and the rest of the files on the box would then be decrypted on the fly.
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Feb 17, 2010
i was looking for a way to stop my menus taking a few seconds to load my icons when i first open them and found a few guides suggesting using the gtk-upate-icon-cache command, but with the any colour you like icon theme i'm using (stored in my home folder .icons directory) i kept getting a "gtk-update-icon-cache: The generated cache was invalid." fault i used the inbuilt facility in the acyl script to copy the icons to the usr/share/icons directory and tried the command again, this time using sudo gtk-update-icon-cache --force --ignore-theme-index /usr/share/icons/ACYL_Icon_Theme_0.8.1/ but i still get the same error. i tried with several of the custom icon themes i've installed and only 1 of the first 7 or 8 i tried successfully created the cache.
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Apr 25, 2011
I am an undergraduate anthropology student doing research for my dissertation on the F/OSS community.I'm interested in are forking (What sort of thing causes/averts a fork? Have you ever participated in one?), the process of decision making (Is consensus democracy effective? Where do communication structures often break down?) and any other reflections or thoughts that you think are relevant.
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Aug 19, 2010
I have two files fasta file and qual file and i need to run mira3.Is it possible to run the mira3 project without the .sff files.and if so where do i get the .sff files since i have only the fasta and qual files.
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Jul 11, 2011
i am working on a project that requires updation after every 10 days that is after 10 days , i have to apply a new release. every time i need to copy all things from one path and paste it to different locations that is a manual work, i want to create a self extractor, in which i have to give only path, that is the path where i need to paste the files.
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Sep 9, 2010
I have learned RHEL 5 recently and i m an engineering student, i want to make a project using RHEL 5, I have done mainly Servers.
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Sep 19, 2010
I'm trying to use BlueJ 3.0.2 on Ubuntu 10.04, but I can't do nothing. I mean: I can't create new project or open existing one.I installed it twice times without problems.I did not find anything either with google or in the developers' website.
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Apr 28, 2011
I have a small java project that handle connections. In order to run it from the terminal I have to cd into the folder that contains the source and run the following command:
java -cp classes com.packagename.mainclass
Where classes is the folder that contains the classes. I want ubuntu to run this application on startup, is there a Java command I can use? Or am I just better off creating a shell script?
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Mar 11, 2010
I am a Master's student.I am a newbie to Linux. I am interested in doing a term project in C kernel programming. I need help in developing a project in which I can use C kernel programming .
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Jun 15, 2010
how do i count the total number of cfiles in the project.My project is on a solaris machine what is the command that I have to run to know the total count of cfiles in the .pj folder.
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Feb 24, 2010
I am college student and for this semester. I am planning to do a project in Linux. Also I have a plan 2 create a new shell in linux.
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Sep 19, 2010
i need to checkout a project from cvs fort a particular user i use the following command cvs -d server:francis:francis@cvs@10.200.2.23:/projects/aa_cesar co myproject when i do it using the eclipse it works fine but when i do it command line it does not checkout the reason is it takes cvs@10.200.2.23 unable to connect that is wrong username pasword credentials are given
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Aug 27, 2010
I just installed OpenSUSE 11.3 and I want to use Kdevelop 4.0 for programming in fortran. when I try to start a new project (Project/New from template) I only get the choice between C++ and PHP. What can I do so that I can also use fortran.
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Apr 20, 2011
I have installed gfortran,cmake,etc,but there is no fortran project to chose.What should I do ?
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Dec 23, 2010
I have Debian 5 machine on which I want to compile the kernel 2.6.35 as per my project requirement.
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Jun 15, 2010
I am doing my work integrated Master's degree. I want to do a project which can be either linux based application or adding a feature to the linux kernel as a kernel extension. Please give me some ideas for this. The duration of project is around 6 months along with my regular office work.
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Jan 16, 2011
I wanted to design a project in linux which could contain programming languages(C, perl, PHP, HTML, XML etc) basically a web based project. Why I have chosen to build on Linux is because it is Open Source, and lot many things can be automated through scripting languages, which in windows I don't know. So, I have installed linux on a virtual machine(Host-Windows 2007 & Guest Linux CentOS), CentOS(command line interface). Since I am a beginner, so I want to know what all tools can be used to facilitate and ease my development process. Some which I know are listed below:
1) Using Putty so that can access the Linux machine from anywhere within the network.
2) Since I want to develop on Linux, but want to use windows as developing platform. So have downloaded Eclipse Editor (C/PHP) on windows. But want to know how can I access linux files from here?
3) Installed Samba, and still trying to figure out how can I access linux files remotely on Windows.
4) How can I ease my development process and what all tools I can use..??
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