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@staaldraad
staaldraad / awk_netstat.sh
Last active May 9, 2024 01:14
AWK to get details from /proc/net/tcp and /proc/net/udp when netstat and lsof are not available
# Gawk version
# Remote
grep -v "rem_address" /proc/net/tcp | awk '{x=strtonum("0x"substr($3,index($3,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($3,i,2))}{print x":"strtonum("0x"substr($3,index($3,":")+1,4))}'
# Local
grep -v "rem_address" /proc/net/tcp | awk '{x=strtonum("0x"substr($2,index($2,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($2,i,2))}{print x":"strtonum("0x"substr($2,index($2,":")+1,4))}'
# No Gawk
# Local
grep -v "rem_address" /proc/net/tcp | awk 'function hextodec(str,ret,n,i,k,c){
@marcan
marcan / linux.sh
Last active December 1, 2023 15:18
Linux kernel initialization, translated to bash
#!/boot/bzImage
# Linux kernel userspace initialization code, translated to bash
# (Minus floppy disk handling, because seriously, it's 2017.)
# Not 100% accurate, but gives you a good idea of how kernel init works
# GPLv2, Copyright 2017 Hector Martin <marcan@marcan.st>
# Based on Linux 4.10-rc2.
# Note: pretend chroot is a builtin and affects the current process
# Note: kernel actually uses major/minor device numbers instead of device name
@heyimalex
heyimalex / fig.conf
Created March 19, 2014 19:27
fig upstart script
description "fig service runner"
start on filesystem and started docker
stop on runlevel [!2345]
respawn
chdir /wherever/your/fig/file/is
script
# Wait for docker to finish starting up first.
FILE=/var/run/docker.sock
while [ ! -e $FILE ] ; do
inotifywait -t 2 -e create $(dirname $FILE)
@stuartcarnie
stuartcarnie / clear-apc.php
Last active February 25, 2024 11:07
Self-contained php script to clear shared-memory cache in php5-fpm via command-line. In this instance it is clearing APC, but can be easily changed to clear other shared-memory caches.
#!/usr/bin/env php
<?php
/*
Copyright 2013 Stuart Carnie and other contributors
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
@ashsmith
ashsmith / default_2.1.vcl
Created April 21, 2013 12:00
Varnish Cache for Magento configuration..
# This configuration is what is provided by PageCache by Varnish for Magento module:
# http://www.magentocommerce.com/magento-connect/pagecache-powered-by-varnish.html
# default backend definition. Set this to point to your content server.
backend default {
.host = "127.0.0.1";
.port = "80";
}
# admin backend with longer timeout values. Set this to the same IP & port as your default server.