Linux is a popular, open source operating system kernel. Linus Torvalds started development of the kernel in 1991.

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Evaluating concurrent application design approaches on Linux

Working on relatively low-speed hardware, I need to grab a snapshot of a rapidly changing datastream and then post-process the snapshot data and save it to disk. I need help with designing the ...
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Is there a standard practice on making a modular Python script?

I wrote a Python script for PIA here: pia-auto-login.py However, I need to make it more modular so that it does the OpenVPN changes from this script. Then I want to create two more packages (at ...
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Auto Create VM and display IE

I have just acciquired an old Dell Poweredge SC1425 from an old friend, this server will act as a development box for web based applications. All has been going well, I have installed the following ...
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Monitoring interfaces and subscribing to multicast on them

How can a program enumerate the available IP interfaces, and monitor changes in them, to subscribe to and send IP multicasts on all of them? I ask because I am troubleshooting a problem with the ...
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Best way to update driver data from userspace

I have a userspace application which interacts with a kernel-space driver in a Linux environment. The driver, in this case, is an LED driver. In typical *nix fashion, the driver exposes a file in ...
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65 views

A callback for when data is received?

So, my understanding is that the Kernel could receive TCP at any time, and that generally a C program asks the Kernel synchronously/asynchronously if it has data available. Would it be possible for a ...
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48 views

How to package a SDL2-based Linux app?

I've written a small toy application using SDL2. I want to distribute it the most user-friendly way, for Linux. I should make a deb package, but then I should also make packages for other distros, ...
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415 views

Best way to signal all child processes to terminate using C

I have been assigned the task of designing a simple web server using C in my UNIX & C class. The webserver listens and forks when a successful connection is made so that multiple clients may be ...
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Emacs upgrade problem on Debian

I am new to programming, Debian and emacs. I tried to install packages of smex on emacs and I downloaded it from smex@marmalade but when I do the install step, emacs told me there is no match for ...