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@thesamesam
thesamesam / xz-backdoor.md
Last active November 4, 2024 18:32
xz-utils backdoor situation (CVE-2024-3094)

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Background

On March 29th, 2024, a backdoor was discovered in xz-utils, a suite of software that

@liweitianux
liweitianux / cat-lps.pl
Last active February 21, 2024 12:05
Print lines at particular speed (line/sec)
#!/usr/bin/env perl
#
# Cat file to terminal at particular speed of lines per second
# https://superuser.com/a/526249
#
# Usage: cat-lps.pl [lps] [file]...
#
use warnings;
use strict;
@liweitianux
liweitianux / git-getversion.sh
Last active July 29, 2024 13:37
Generate version information based on Git tags/commits
#!/bin/sh
#
# Generate version information based on Git tags/commits.
#
# License: Public Domain
#
# URL: https://gist.github.com/liweitianux/9fce0fc404c41b8f28512e87fbca1562
#
dirty_mark='+'
@liweitianux
liweitianux / f-stack.installation.md
Last active July 16, 2020 09:39
F-Stack Installation (custom prefix)

F-Stack Installation

  • Author: Weitian LI
  • Date: 2020-07-16

Environment

  • OS: CentOS 7.4.1708
  • Kernel: 3.10.0-957.27.2.el7.x86_64
@liweitianux
liweitianux / dfly-install-hammer2.md
Last active January 2, 2024 06:15
DragonFly BSD Installation (MBR, HAMMER2 boot+root)

DragonFly BSD Installation

1. Create Disk Slice

Assume the disk is /dev/da8, to create a slice of about 100 GB.

dfly# cat > fdisk.conf << _EOF_
@liweitianux
liweitianux / dfly-install.org
Last active February 26, 2023 05:19
DragonFly BSD Manual Installation with HAMMER2 and Encrypted Root

DragonFly BSD Installation

2018-01-30

Disk Partition

MBR Slice

root# dd if=/dev/zero of=/dev/vbd0 bs=32k count=16
root# fdisk -IB /dev/vbd0

Libuv and libev, two I/O libraries with similar names, recently had the privilege to use both libraries to write something. Now let's talk about my own subjective expression of common and different points.

The topic of high-performance network programming has been discussed. Asynchronous, asynchronous, or asynchronous. Whether it is epoll or kqueue, it is always indispensable to the asynchronous topic.

Libuv is asynchronous, and libev is synchronous multiplexing IO multiplexing.

Libev is a simple encapsulation of system I/O reuse. Basically, it solves the problem of different APIs between epoll and kqueuq. Ensure that programs written using livev's API can run on most *nix platforms. However, the disadvantages of libev are also obvious. Because it basically just encapsulates the Event Library, it is inconvenient to use. For example, accept(3) requires manual setnonblocking after connection. EAGAIN, EWOULDBLOCK, and EINTER need to be detected when reading from a socket. This is a

@StevenACoffman
StevenACoffman / fluent-filebeat-comparison.md
Last active April 2, 2024 22:34
Fluentd Fluent-bit FileBeat memory and cpu resources

Fluent-bit rocks

A short survey of log collection options and why you picked the wrong one. 😜

Who am I? Where am I from?

I'm Steve Coffman and I work at Ithaka. We do JStor (academic journals) and other stuff. How big is it?

Number what it means
101,332,633 unique visitors in 2017
@robertpainsi
robertpainsi / commit-message-guidelines.md
Last active November 16, 2024 11:48
Commit message guidelines

Commit Message Guidelines

Short (72 chars or less) summary

More detailed explanatory text. Wrap it to 72 characters. The blank
line separating the summary from the body is critical (unless you omit
the body entirely).

Write your commit message in the imperative: "Fix bug" and not "Fixed
bug" or "Fixes bug." This convention matches up with commit messages
@adeekshith
adeekshith / .git-commit-template.txt
Last active October 20, 2024 21:10 — forked from Linell/.git-commit-template.txt
This commit message template helps you write great commit messages and enforce it across teams.
# <type>: (If applied, this commit will...) <subject> (Max 50 char)
# |<---- Using a Maximum Of 50 Characters ---->|
# Explain why this change is being made
# |<---- Try To Limit Each Line to a Maximum Of 72 Characters ---->|
# Provide links or keys to any relevant tickets, articles or other resources
# Example: Github issue #23