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@mtrovo
mtrovo / set_wallpaper.py
Created July 27, 2011 21:06
Simple python script to set the wallpaper on Ubuntu
#!/usr/bin/env python
#-*- coding:utf-8 -*-
import commands
import os.path
from sys import argv
def set_gnome_wallpaper(file_path):
command = "gconftool-2 --set \
/desktop/gnome/background/picture_filename \
@stevenhaddox
stevenhaddox / server_certificates_to_pem.md
Last active May 8, 2024 07:13
Convert .crt & .key files into .pem file for HTTParty

Two ways to do it, but only worked for me so I'll put it first and the second for reference:

$ openssl pkcs12 -export -in hostname.crt -inkey hostname.key -out hostname.p12
$ openssl pkcs12 -in hostname.p12 -nodes -out hostname.pem

Other options for this method in comments below:

# Note, the -certfile root.crt appends all CA certs to the export, I've never needed these so it's optional for my personal steps
$ openssl pkcs12 -export -in hostname.crt -inkey hostname.key -certfile root.crt -out hostname.p12

Note, I've always had my hostname.crt as part of my .pem, so I keep my certs but apparently you may not have to, hence the nocerts flag being an extra option in this sample

@thomasfr
thomasfr / autossh.service
Last active June 19, 2025 05:38
Systemd service for autossh
[Unit]
Description=Keeps a tunnel to 'remote.example.com' open
After=network.target
[Service]
User=autossh
# -p [PORT]
# -l [user]
# -M 0 --> no monitoring
# -N Just open the connection and do nothing (not interactive)
@olasd
olasd / stream_to_youtube.sh
Created March 28, 2014 19:58
Stream video to youtube via ffmpeg
#! /bin/bash
#
# Diffusion youtube avec ffmpeg
# Configurer youtube avec une résolution 720p. La vidéo n'est pas scalée.
VBR="2500k" # Bitrate de la vidéo en sortie
FPS="30" # FPS de la vidéo en sortie
QUAL="medium" # Preset de qualité FFMPEG
YOUTUBE_URL="rtmp://a.rtmp.youtube.com/live2" # URL de base RTMP youtube
@kotakanbe
kotakanbe / ipcalc.go
Created September 17, 2015 02:59
get all IP address from CIDR in golang
package main
import (
"net"
"os/exec"
"github.com/k0kubun/pp"
)
func Hosts(cidr string) ([]string, error) {
@ipbastola
ipbastola / clean-up-boot-partition-ubuntu.md
Last active August 16, 2024 13:39
Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r 
@leonardofed
leonardofed / README.md
Last active September 9, 2025 16:38
A curated list of AWS resources to prepare for the AWS Certifications


A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.


Ping all AWS EC2 IPs from http://ec2-reachability.amazonaws.com/
@rjhintz
rjhintz / aws_sa_pro_exam.md
Last active May 26, 2025 04:00
Passing AWS Certified Solutions Architect - Professional Exam

Opinionated advice on passing the AWS Certified Solutions Architect - Professional Exam

Current as of: August, 2016

Passing SA Pro:

  • get ACloudGuru 5 certification bundle. (Disclaimer: I have no financial interest in ACloudGuru.)
  • work through Associate courses. Take and pass all Associate exams.
  • work through SA Pro course
  • take the SA Pro Sample exam. Note that answers are provided for version from the Japan site. Download the PDF. The answers are at the end of each question.
  • take SA Pro Practice exam. If you get 75% or higher, just take the SA Pro exam.
@neilhwatson
neilhwatson / web-servers.md
Created October 31, 2016 20:14 — forked from willurd/web-servers.md
Big list of http static server one-liners

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