MartinBrugnara

# /etc/sysctl.d/wireguard.conf
net.ipv4.ip_forward=1
net.ipv6.conf.all.forwarding=1
net.ipv6.conf.default.forwarding=1
net.ipv6.conf.eth0.proxy_ndp=1

#/etc/wireguard/wg0.conf   (DO virtual machine)
[Interface]
# The server interface does not actually need an ipv6.
# The 2 following must be repeated for each used addres [0, 1]

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

mourner

// Lefalet shortcuts for common tile providers - is it worth adding such 1.5kb to Leaflet core?

L.TileLayer.Common = L.TileLayer.extend({
	initialize: function (options) {
		L.TileLayer.prototype.initialize.call(this, this.url, options);
	}
});

(function () {
	

marktheunissen

This playbook has been removed as it is now very outdated.

lizthegrey

default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

tuxfight3r

##TCP FLAGS##

Unskilled Attackers Pester Real Security Folks
==============================================
                     TCPDUMP FLAGS
Unskilled =  URG  =  (Not Displayed in Flag Field, Displayed elsewhere) 
Attackers =  ACK  =  (Not Displayed in Flag Field, Displayed elsewhere)
Pester    =  PSH  =  [P] (Push Data)
Real      =  RST  =  [R] (Reset Connection)
Security  =  SYN  =  [S] (Start Connection)

bitonic

# Full NixOS configuration for a ZFS server with full disk encryption hosted on Hetzner.
# See <https://mazzo.li/posts/hetzner-zfs.html> for more information.

{ config, pkgs, ... }:
let
  # Deployment-specific parameters -- you need to fill these in where the ... are

  hostName = "...";
  publicKey = "...";
  # From `ls -lh /dev/disk/by-id`

JoeyBurzynski

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}