Skip to content

Instantly share code, notes, and snippets.

@briangordon
briangordon / gitgraph-react.sh
Last active March 29, 2019 15:58
Steps to build gitgraph-react to play with the storybook 😵
brew install node
export PATH="$HOME/.node/bin:$PATH"
npm install -g lerna
git clone git@github.com:nicoespeon/gitgraph.js.git
echo "scripts-prepend-node-path=true" >> gitgraph.js/.npmrc
cd gitgraph.js
yarn
cd packages/gitgraph-core
yarn
cd ../gitgraph-react
@briangordon
briangordon / SNAKE.8xp
Created October 3, 2019 05:51
Source code for a TI-BASIC implementation of Snake
{11,5,11,5,11,5→L₁
1→𝒏:dim(L₁)→L
1→S:0→T
0→C:1→P
0→W
DelVar [A]
{10,26→dim([A]
ClrHome
While 1
If P
@briangordon
briangordon / animal-verbs.txt
Last active October 7, 2019 18:49
Animal names which are also verbs
Ape his behaviors
Badger her about
Bat your eyelids
Bear fruit
Buck the system
Buffalo him into
Bug him about
Carp about
Chicken out
Clam up
@briangordon
briangordon / cisco-sg350 switch1
Last active May 2, 2020 16:05
Switch configuration
config-file-header
switch1
v2.5.0.90 / RTESLA2.5_930_364_105
CLI v1.0
file SSD indicator encrypted
@
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
# UFW configuration for a home DMZ box exposed to the public internet, with only sshd reachable from the outside world.
# In addition to setting these rules you should also:
# 1. Edit /etc/ufw/before.rules to remove the default rules which permit incoming DHCP packets from the outside world.
# 2. Edit /etc/ufw/before.rules to remove the default rules which permit incoming ICMP packets from the outside world.
# 3. Edit /etc/default/ufw to turn off non-local ipv6 because I don't know enough about it to be confident.
ufw default deny incoming
ufw default allow outgoing
ufw limit log proto tcp to 0.0.0.0/0 port ssh
ufw allow proto udp from 192.168.0.0/16 to 0.0.0.0/0 port bootpc comment "required for dhclient"
@briangordon
briangordon / gist:d6014bc1b96f6d89a51ce7906cea9a03
Created November 16, 2018 00:29
Dtrace one-liner for watching readers of your chrome profile
dtrace -n 'syscall::open*:entry /strstr(copyinstr(arg0), "Chrome/Default") != NULL/ { printf("%s %s",execname,copyinstr(arg0)); }' > chrome-accessors

These are the configuration files I ended up using for setting up a Wireguard-based anonymizing VPN on Debian Buster (the current stable), formatted as a shell script. It requires the Wireguard kernel module and userland tools from backports: apt-get install -t buster-backports wireguard-tools

The idea here is to set up a network namespace containing the configuration for the wireguard interface wg0. Any program which wants to use the Wireguard interface needs to be run in that namespace. For example, ip netns exec wireguard ping google.com. All sockets opened by that program and its children will go out over the tunnel, including DNS resolution, so they won't be able to interact in any way with the local network. Conversely, other processes (which were not started with ip-netns) will continue to use the original routing tables and DNS configuration, so things like SSH, remote desktop, and NFS

@briangordon
briangordon / office-privacy.reg
Created May 27, 2019 02:27
Microsoft recently introduced "required" telemetry for Office which cannot be disabled through the UI. This should shut it off.
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Policies\Microsoft\office\common\clienttelemetry]
"sendtelemetry"=dword:00000003
@briangordon
briangordon / README.md
Last active March 11, 2021 04:33
ddclient for Cloudflare DNS / DO

This is a ddclient setup for updating Cloudflare DNS from a DO droplet.

You do get one free floating IP which makes dynamic DNS pointless, but you'll get charged if you want to turn off the droplet. Running ddclient lets you keep using Cloudflare DNS without manually updating your A records.

Debian Buster (current stable) only has ddclient 3.8.3 which has trouble with the v4 Cloudflare API, so we get ddclient from GitHub.

apt install perl libdata-validate-ip-perl libjson-any-perl
tar xzf ddclient-3.9.1.tar.gz
cp ddclient/ddclient /usr/sbin/
@briangordon
briangordon / ludi-nginx.conf
Last active March 11, 2021 04:54
My personal nginx configuration for sharing files
user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;
events {
worker_connections 768;
# multi_accept on;
# Mine. Probably not necessary but why not