Anton Lugovoi fitz123

OpenVPN Windows client installation

To get access to internal network VPN connection is nessessary

To setup and run VPN access user have to have Administrator rights, to avoid that we'll perform all installation steps as Administrator but configure service to be usable for all system users

Manual setup VPN connection to be activated automatically as a service during PC start. If you want to change that behavior - disable the service and use "OpenVPN GUI" app as Administrator

Get a configuration archive from trusted source
Login to a system as Administrator

Security recommendations for Windows users

Chapter 1: Basic OS protections

Change(or create) password for current user:
1. ctrl+alt+del --> Change password
Create non-admin user and sign in into the system as non-admin only:
Open Run prompt: ctrl+R

	#!/bin/bash

	###############################################################################
	#
	# Description:
	# Script generates Nimble session-friendly playlists
	# (parent playlist with sub-playlists inside) and supervisor program/job
	# of ffmpeg process which pulls from provided source address $ch_source and
	# pushes to localhost nibmle-origin server as a name $ch_res for later HLS transmuxing
	#

	#

	# deb cdrom:[Ubuntu-Server 14.04.3 LTS _Trusty Tahr_ - Beta amd64 (20150805)]/ trusty main restricted

	# deb cdrom:[Ubuntu-Server 14.04.3 LTS _Trusty Tahr_ - Beta amd64 (20150805)]/ trusty main restricted

	# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to

	# newer versions of the distribution.

	#!/bin/bash
	##################################
	# Zabbix monitoring script
	#
	# Naxsi rate using elasticsearch database
	#
	# https://gist.github.com/fitz123/6d8e03e8c287a6988553
	#
	##################################
	# Contact:

	#!/bin/bash
	##################################
	# Zabbix monitoring script
	#
	# Nginx response codes count
	# using elasticsearch database
	#
	# https://gist.githubusercontent.com/fitz123/433561fac586713685cd/raw/9a6b7eb6704b9a1ec270673f2997105c4a95ff0c/nginx_response_codes_count.sh
	#
	##################################

	#!/bin/bash
	##################################
	# Zabbix monitoring script
	#
	# Checking urgency in changelog
	# for updates which require system restart
	#
	# https://gist.githubusercontent.com/fitz123/6e0e127a336d96ca4c42/raw/be5275f6fb3869c6cce9d3fbb9c2727cad3df63a/reboot_required_check.sh
	#
	##################################

	# Do you tried to measure how many new docs appear in your ES by refreshing Kibana?
	# Do you research how to measure ES performance and find nothing suitable for you?
	# I found that approach usefull

	while true; do \
	count1=`curl -s -XGET 'http://localhost:9200/_count?q=tags:imported&filter_path=count' \| egrep -o '[0-9]+'` && \
	sleep 125 && \
	count2=`curl -s -XGET 'http://localhost:9200/_count?q=tags:imported&filter_path=count' \| egrep -o '[0-9]+'` && \
	echo `date +%T` - $[ ($count2 - $count1)/125 ] docs/sec; done

	##
	# Temporary Speed-up configuration for fast import
	# references: https://www.elastic.co/blog/performance-considerations-elasticsearch-indexing
	# p.s. If you do not want to restart your node/cluster - don't perform 1 and 2 points
	##

	# 1. Change "ES_HEAP_SIZE" from 50% of memory (default and recommended) to something like 80%
	mem=`free -m \| grep Mem \| awk '{ print $2 }'` && heap=$[ ($mem/1024)*80/100 ]g && \
	sudo sed -i "s/ES_HEAP_SIZE=.*/ES_HEAP_SIZE=$heap/" /etc/init.d/elasticsearch

	# find files of specific type
	find /mnt/Private/YandexDisk/photos -type f -exec file -N -i -- {} + \| sed -n 's!: video/[^:]*$!!p'

	# exclude regex "127.0.*" from 4th column, "[ut][dc]p6" from 1st column, and exclude 2nd column 2 times
	netstat -tulpan \| awk '$4!~"127.0."' \| awk '$1!~"[ut][dc]p6"' \| sed -r 's/(\s+)?\S+//2' \| sed -r 's/(\s+)?\S+//2'