Skip to content

Instantly share code, notes, and snippets.

@ericboehs
ericboehs / setup_wifi
Last active August 29, 2015 14:02
Script for automating connecting Spark Core device to WiFi via USB (OS X)
#! /usr/bin/env bash
#
# You will need the spark core cli installed first (and nodejs):
# npm install -g spark-cli
# spark cloud login
#
# To set SSID and PASSPHRASE, change below or run:
# git config spc.wifi.ssid YOUR_SSID
# git config spc.wifi.passphrase YOUR_PASSPHRASE
@todgru
todgru / ssh-tunnel.md
Last active May 6, 2023 15:32
How to set-up a SSH tunnel for AWS RDS

SSH Tunnel

Our db is hosted on Amazon. Our web server can connect to the db. Connections to the db are not allowed outside of the web server.

Run ssh tunnel locally:

This creates a tunnel from my local machine to the web server:

ssh -N -L 3307:my-rds-db.us-east-1.rds.amazonaws.com:3306 ec2-my-web-server.compute-1.amazonaws.com
@denji
denji / nginx-tuning.md
Last active July 17, 2024 13:48
NGINX tuning for best performance

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.