| # | |
| # Proof of concept for a HAProxy maintenance mode | |
| # | |
| # | |
| # Control the maintenance page during runtime using the stats socket: | |
| # | |
| # To put the whole site in maintenance mode (for all IPs): | |
| # > add acl #0 0.0.0.0/0 | |
| # | |
| # To exclude your own ip, so you are able to test things out: |
| #!/bin/bash | |
| WPA_SUPPLICANT_CONF="/etc/wpa_supplicant/wpa_supplicant.conf" | |
| # this funcion is called once the connection is established, | |
| # in this case a boot sound will be played to notify the user that everything is ready. | |
| function connected { | |
| aplay /root/Windows3.1.wav 2>&1 >/dev/null & | |
| } |
Simple way to setup an arm chroot for building packages for your arm devices. This is an alternative to cross-compiling where you are limited to only linking against the libs in your toolchain.
You can store the chroot wherever you like. I choose to store it in a disk-image which I mount to my filesystem.
Let's say somebody temporarily got root access to your system, whether because you "temporarily" gave them sudo rights, they guessed your password, or any other way. Even if you can disable their original method of accessing root, there's an infinite number of dirty tricks they can use to easily get it back in the future.
While the obvious tricks are easy to spot, like adding an entry to /root/.ssh/authorized_keys, or creating a new user, potentially via running malware, or via a cron job. I recently came across a rather subtle one that doesn't require changing any code, but instead exploits a standard feature of Linux user permissions system called setuid to subtly allow them to execute a root shell from any user account from the system (including www-data, which you might not even know if compromised).
If the "setuid bit" (or flag, or permission mode) is set for executable, the operating system will run not as the cur
| monitor: bundle exec ruby monitor.rb |
| -- show running queries (pre 9.2) | |
| SELECT procpid, age(clock_timestamp(), query_start), usename, current_query | |
| FROM pg_stat_activity | |
| WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' | |
| ORDER BY query_start desc; | |
| -- show running queries (9.2) | |
| SELECT pid, age(clock_timestamp(), query_start), usename, query | |
| FROM pg_stat_activity | |
| WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' |
| #!/bin/bash | |
| # nexusdeb builds a debian package of the Nexus repository manager. nexusdeb | |
| # downloads nexus by itself. You run it by | |
| # nexusdeb.sh <version> <maintainer> | |
| # Example: | |
| # nexusdeb.sh 2.0.5 "Denny Colt <[email protected]>" | |
| # | |
| # The script has been tested with version 2.0.5. | |
| if [ -z $1 ] |
| #!/usr/bin/env python3 | |
| """ | |
| Script to test HTTP mirrors of Cygwin by measuring download times. | |
| Originally written in 2011, modernized in 2025. | |
| """ | |
| from math import floor | |
| from urllib.request import urlopen | |
| import argparse | |
| import sys |
