kernel

Personal VPN server

Linux

Posted on February 28, 2023 | 3 minutes | 596 words | Iulian Costan

I was not a big fan of traditional VPN services (which are highly centralized and slow) until Wireguard has arrived and was merged into Linux Kernel; a VPN for this century, peer to peer with state of the art cryptography. [Read More]

archlinux vpn wireguard wg personal kernel linux

Use Linux kernel module

Kernel

Posted on September 30, 2021 | 3 minutes | 446 words | Iulian Costan

In Part 1 I wrote a simple Linux kernel module, called World, in Part 2 I configured that module, now it's time to use that module from within kernel space (another kernel module). [Read More]

linux kernel module c

Config Linux kernel module

Kernel

Posted on August 25, 2020 | 4 minutes | 806 words | Iulian Costan

In Part 1 I created a simple World module, now it's time to configure it and there are 3 main ways to do it: [Read More]

linux kernel module c ioctl kbuild makefile

Write Linux kernel module

Kernel

Posted on March 24, 2020 | 3 minutes | 543 words | Iulian Costan

I am thinking to start a Linux Kernel series and write about modules, device drivers, proc and sysfs, unit test with kunit and so on; here is the first one, a simple World module. [Read More]

linux kernel module c kbuild makefile symbol