System & Network Admin

[Michael Lynch]’s adventures in configuring Nix to automate fuzz testing is a lot of things all rolled into one. It’s not only a primer on fuzz testing (a method of finding bugs) but it…

The Intel Edison is an incredibly small and cheap x86 computing platform, and with that comes the obvious applications for robotics and wearable computing. [mz] had another idea: what if the Edison…

In computing, an inode (index node) is a data structure used to represent a file or directory. Each inode stores the attributes and disk location of the file’s data. Filesystems that support extended attributes use additional entries in the inode structure to store these attributes. There are two ways to get the inode number for …

An inode identifies the file and its attributes such as file size, owner, and so on. A unique inode number within the file system identifies each inode. But, why to delete file by an inode number? Sure, you can use rm command to delete file. Sometime accidentally you creates filename with control characters or characters […]

In the recent versions of Raspbian the SSH access is disabled by default but it can be easily enabled. In this tutorial, we'll show you how to enable SSH on a Raspberry Pi board.

A guide to setting up a self-managed Woodpecker CI on a Hetzner server for continuous deployment of a website hosted on Codeberg.

Filesystems, file IO, and durability.

Managing different SSH Keys for different Hosts is well-understood. But different keys for the same host (e.g., github.com), based on which Organization we'r...

If you create a file on UNIX/Linux with special characters, such as touch \"la*, you can't remove it with rm "la*. You have to use the inode number (you can if you add the \ before the name, I know...

Get to know these common tools and manage your tasks at the same time.

A popular expression in the Linux forums nowadays is noting that someone “uses Arch btw”, signifying that they have the technical chops to install and use Arch Linux, a distribution des…

A joke in networking circles is that the switch from IPv4 to IPv6 is always a few years away. Although IPv6 was introduced in the early 90s as a result of the feared imminent IPv4 address drought c…

Integrate your software stack with Calendly’s scheduling platform. Sync with Outlook and Salesforce, embed Calendly into your site, get the mobile app, and more.

I have generated an image file with dd. The image contains two partitions. I created a loop virtual disk: losetup -P /dev/loop0 $image_file. I mounted the two loop created partitions (loop0p1, loop...

This is my Makefile: REBAR=./rebar REBAR_COMPILE=$(REBAR) get-deps compile all: compile compile: $(REBAR_COMPILE) test: $(REBAR_COMPILE) skip_deps=true eunit clean: -rm -rf deps ebi...

Context I have a 16 GB SD card with a Linux based OS for a Raspberry Pi. Most of the space is empty. I want to share the SD .img with other people but if I use the command dd if=/dev/sdXX of=/home/

The Cython compiler for writing C extensions in the Python language.

Python wrapper around Lua and LuaJIT