Rodrigo Cosme rdccosmo

Check running mysql container:

$ sudo docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
26137efa979f        mysql               "docker-entrypoint..."   8 months ago        Up 10 minutes       0.0.0.0:3306->3306/tcp   container-mysql

Check docker container mysql version:

$ sudo docker exec container-mysql mysqld --version`
mysqld  Ver 5.7.15 for Linux on x86_64 (MySQL Community Server (GPL))

Using xclip to copy terminal content to the clip board:

Say you want to pipe shell output to your clipboard on Linux. How would you do it? First, choose the clipboard destination, either the Mouse clip or the system clipboard.

For the mouse clipboard, pipe straight to xclip:

echo 123 | xclip

For the system clip board, pipe to xclip and select clip directly:

Apache - Maintenance Page

Activate/Deactivate with a file.
Bypass with a custom request header.

With the following Apache Rewrite rule, temporarily redirect all traffic to a maintenance page when a file named maintenance exists at the same level as the DocumentRoot directory. i.e. if your DocumentRoot is /var/www/public_html/ then creating the file /var/www/maintenance would trigger Maintenance mode.

Use something like the ModHeader Chrome browser extension to bypass the maintenance page by setting a X-Maintenance request header with a value of tF0BOCn4z8HgG2Kw (replace this with your own unique passcode string).

Instructions

Lets say i want to rebalance `my-sample-topic` topic on my kafka cluster

Create topcis.json

{
  "version": 1,
  "topics": [
 { "topic": "my-sample-topic"

Open a webpage that uses the CA with Firefox
Click the lock-icon in the addressbar -> show information -> show certificate
the certificate viewer will open
click details and choose the certificate of the certificate-chain, you want to import to CentOS
click "Export..." and save it as .crt file
Copy the .crt file to /etc/pki/ca-trust/source/anchors on your CentOS machine
run update-ca-trust extract
test it with wget https://thewebsite.org

	FROM docker.elastic.co/elasticsearch/elasticsearch:5.5.1

	RUN \
	mv /usr/share/elasticsearch/plugins/x-pack /usr/share/elasticsearch/plugins/.removing-x-pack && \
	mv /usr/share/elasticsearch/plugins/.removing-x-pack /usr/share/elasticsearch/plugins/x-pack && \
	/usr/share/elasticsearch/bin/elasticsearch-plugin remove x-pack

	" Step 1: Install this: https://github.com/neomake/neomake

	" Step 2: Put these in your .vimrc:
	" Neomake settings
	autocmd! BufWritePost,BufEnter * Neomake
	let g:neomake_javascript_enabled_makers = ['eslint']
	let g:neomake_scss_enabled_makers = ['scss_lint']
	let g:neomake_python_enabled_makers = ['pylint', 'python']

	" Step 3: Delete syntastic stuff after you've verified neovim works

	#!/usr/bin/env bash

	set -e

	CONTEXT="$1"

	if [[ -z ${CONTEXT} ]]; then
	echo "Usage: $0 KUBE-CONTEXT"
	exit 1
	fi

	<?php

	// Example of decoding JWT Web Token with public key
	// Package: https://github.com/firebase/php-jwt

	require_once 'vendor/autoload.php';

	use \Firebase\JWT\JWT;

	$key = "-----BEGIN PUBLIC KEY----- YOUR PUBLIC KEY HERE -----END PUBLIC KEY-----";

	### LDAP SEARCH ###

	#search by user
	ldapsearch -xv -h ad1.domain.local -p 389 -b "dc=domain,dc=local" -D "[email protected]" \
	-W "(&(objectClass=user)(sAMAccountName=user123))"

	#search by user but dont wrap the output
	ldapsearch -x -H ldap://ad1.domain.local -b "dc=domain,dc=local" -D "[email protected]" \
	-W "(&(objectClass=user)(sAMAccountName=user123))" -o ldif-wrap=no