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#!/bin/bash
# bash generate random alphanumeric string
#
# bash generate random 32 character alphanumeric string (upper and lowercase) and
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1)
# bash generate random 32 character alphanumeric string (lowercase only)
cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1
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joglomedia / ssh_port_checker.sh
Created June 23, 2019 16:09 — forked from skamithi/ssh_port_checker.sh
Bash script to detect if SSH port is active on remote host. Used it orchestrating vm creation using ansible.
#!/bin/bash
# Script for checking if SSH port is open
# Only checks that port is open. Not that actually SSH connection can occur
counter=0
result="ssh disabled"
if [ -z "$1" ]
then
echo "hostname argument required. Example ssh_port_checker.sh 10.1.1.1"
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joglomedia / my.cnf
Created August 31, 2019 02:08 — forked from fevangelou/my.cnf
Optimized my.cnf configuration for MySQL/MariaSQL (on Ubuntu, CentOS etc. servers)
# Optimized my.cnf configuration for MySQL/MariaSQL
#
# by Fotis Evangelou, developer of Engintron (engintron.com)
#
# === Updated December 2018 ===
#
# The settings provided below are a starting point for a 2GB - 4GB RAM server with 2-4 CPU cores.
# If you have less or more resources available you should adjust accordingly to save CPU,
# RAM and disk I/O usage.
# The settings marked with a specific comment or the word "UPD" after the value
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joglomedia / curl.md
Created September 16, 2019 07:40 — forked from subfuzion/curl.md
curl POST examples

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

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joglomedia / gitio
Created December 9, 2019 00:35 — forked from defunkt/gitio
Turn a github.com URL into a git.io URL.
#!/usr/bin/env ruby
# Usage: gitio URL [CODE]
#
# Turns a github.com URL
# into a git.io URL
#
# Copies the git.io URL to your clipboard.
url = ARGV[0]
code = ARGV[1]
cfg.parser () {
fixed_file=$(cat $1 | sed 's/ = /=/g') # fix ' = ' to be '='
IFS=$'\n' && ini=( $fixed_file ) # convert to line-array
ini=( ${ini[*]//;*/} ) # remove comments
ini=( ${ini[*]/#[/\}$'\n'cfg.section.} ) # set section prefix
ini=( ${ini[*]/%]/ \(} ) # convert text2function (1)
ini=( ${ini[*]/=/=\( } ) # convert item to array
ini=( ${ini[*]/%/ \)} ) # close array parenthesis
ini=( ${ini[*]/%\( \)/\(\) \{} ) # convert text2function (2)
ini=( ${ini[*]/%\} \)/\}} ) # remove extra parenthesis
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joglomedia / nginx-tuning.md
Created December 18, 2019 15:27 — forked from denji/nginx-tuning.md
NGINX tuning for best performance

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.

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joglomedia / Dockerfile
Created January 31, 2020 09:05 — forked from avishayp/Dockerfile
Add non-root user for alpine linux
# non root user example for alpine
#
# usage:
# $ docker build --build-arg "USER=someuser" --tag test .
# $ docker run --rm test
FROM alpine
ARG USER=default
ENV HOME /home/$USER
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joglomedia / Setup SSH Key for Remote Server Password-less Login
Last active January 31, 2020 09:55
How to generate an SSH key and add public key to the server for authentication
## Generate a new SSH key
Follow this command, ensure that you change your-identifier with your own, it could be an unique name or email address (recommended)
```
$ ssh-keygen -t rsa -b 4096 -C "your-identifier"
```
An output from those command look like below.
If asked, simply press enter to follow the suggested value (/home/yours/.ssh/id_rsa)
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joglomedia / ffmpeg_mkv_mp4_conversion.md
Created July 15, 2021 09:07 — forked from jamesmacwhite/ffmpeg_mkv_mp4_conversion.md
Easy way to convert MKV to MP4 with ffmpeg

Converting mkv to mp4 with ffmpeg

Essentially just copy the existing video and audio stream as is into a new container, no funny business!

The easiest way to "convert" MKV to MP4, is to copy the existing video and audio streams and place them into a new container. This avoids any encoding task and hence no quality will be lost, it is also a fairly quick process and requires very little CPU power. The main factor is disk read/write speed.

With ffmpeg this can be achieved with -c copy. Older examples may use -vcodec copy -acodec copy which does the same thing.

These examples assume ffmpeg is in your PATH. If not just substitute with the full path to your ffmpeg binary.

Single file conversion example