Alexander ferr0

OpenWrt Hacking

Guides

More space for packages with extroot on your OpenWrt router

If you would like to install extra packages on OpenWrt, but you have run out of space on your router’s internal flash memory, then this tutorial is for you.

The plan is to copy the OpenWrt’s root filesystem onto an external USB flash drive, and tell the router to switch to that when it boots up.

Automatic creation of 70-persistent-net.rules on CentOS 7 with net.ifnames=0 and biosdevname=0

All quoted scripts are direct copy from latest CentOS 6

Logon under root or sudo -s
Create "/lib/udev/write_net_rules" file with content:

#!/bin/sh -e
#
# Copyright (C) 2006 Marco d'Itri <md@Linux.IT>

Compile Mainline Kernel for WSL2

Steps for compile Kernel Linux 5.15.0

Actual Kernel

$ uname -a
Linux DESKTOP-ID 4.19.128-microsoft-standard #1 SMP Tue Jun 23 12:58:10 UTC 2020 x86_64 GNU/Linux

Work Dir linux

security and hardening options for systemd service units

A common and reliable pattern in service unit files is thus:

NoNewPrivileges=yes
PrivateTmp=yes
PrivateDevices=yes
DevicePolicy=closed
ProtectSystem=strict

Install choco

Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))

	# config file for ansible -- http://ansible.com/
	# ==============================================

	# nearly all parameters can be overridden in ansible-playbook
	# or with command line flags. ansible will read ANSIBLE_CONFIG,
	# ansible.cfg in the current working directory, .ansible.cfg in
	# the home directory or /etc/ansible/ansible.cfg, whichever it
	# finds first

	[defaults]

	# This code is licensed under the terms of the MIT license https://opensource.org/license/mit
	# Copyright (c) 2021 Marat Reymers

	## Golden config for golangci-lint v1.57.2
	#
	# This is the best config for golangci-lint based on my experience and opinion.
	# It is very strict, but not extremely strict.
	# Feel free to adapt and change it for your needs.

	run:

	// Determine linux distribution and version
	cat /etc/issue
	cat /etc/*-release
	cat /etc/lsb-release
	cat /etc/redhat-release

	// Determine kernel version - 32 or 64-bit?
	cat /proc/version
	uname -a
	uname -mrs

	#---------------------------------------------------------------------
	# Example configuration for a possible web application. See the
	# full configuration options online.
	#
	# http://haproxy.1wt.eu/download/1.4/doc/configuration.txt
	#
	#---------------------------------------------------------------------

	global
	log 127.0.0.1 local2

	DROP FUNCTION IF EXISTS squid_log.id_by_date;
	CREATE FUNCTION `id_by_date`(day DATE)
	RETURNS int(11)
	DETERMINISTIC /* Чтобы в where-выражении функция не вызывалась для каждой записи */
	READS SQL DATA
	COMMENT 'Получить id записи, ближайшей к указанной дате'
	BEGIN
	/*******************************************************************************
	* Получить id записи, ближайшей к указанной дате
	* ----------------------------------------------