k4mrul

Deploy the MongoDB Replica set using Ansible.

Pre-requisite:

Make sure to add hosts entries in /etc/hosts in all mongod instance. Verify whether it's reachable, i.e within network. Check it with ping or telnet. ping hostname/ip telnet hostname/ip mongo_port Quick guide

Adjust the hosts details in inventory. Adjust the global variables in group_vars/all

k4mrul

Create a new repository, or reuse an existing one.

Generate a new SSH key:

ssh-keygen -t rsa -C "youremail@example.com"

Copy the contents of the file ~/.ssh/id_rsa.pub to your SSH keys in your GitHub account settings (https://github.com/settings/keys).

Test SSH key:

k4mrul

#!/bin/bash

##
# Remove "Commercial use suspected"/"Commercial use detected" warning on teamviewer 13
#
# Tested on Arch linux
##

CONFIG_FILE=/opt/teamviewer/config/global.conf

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#!/bin/sh
#Put in /etc/adblock.sh

#Script to grab and sort a list of adservers and malware

#Check proper DHCP config and, if necessary, update it
uci get dhcp.@dnsmasq[0].addnhosts > /dev/null 2>&1 || uci add_list dhcp.@dnsmasq[0].addnhosts=/etc/block.hosts && uci commit

#Leave crontab alone, or add to it
grep -q "/etc/adblock.sh" /etc/crontabs/root || echo "0 4 * * 0,3 sh /etc/adblock.sh" >> /etc/crontabs/root

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#!/bin/bash
#
# This script configures WordPress file permissions based on recommendations
# from http://codex.wordpress.org/Hardening_WordPress#File_permissions
#
# Author: Michael Conigliaro <mike [at] conigliaro [dot] org>
#

WP_OWNER=nobody # <-- wordpress owner (if you use shared host, but if use VPS like me try your user and group instead)
WP_GROUP=nogroup # <-- wordpress group.

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Install & Configure MailHog

1. Download and make it executable

wget https://github.com/mailhog/MailHog/releases/download/v1.0.0/MailHog_linux_amd64
sudo cp MailHog_linux_amd64 /usr/local/bin/mailhog
sudo chmod +x /usr/local/bin/mailhog

2. Make MailHog as a service

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Installing Arch:


sudo vim /etc/pacman.conf
Update packages list: sudo pacman -Syy
run sudo pacman -Syu  before installing any software (to update the repositories first)

* Timing issue:
    - Change hardware clock to use UTC time:
        sudo timedatectl set-local-rtc 0

k4mrul

Installing Kerberos on Redhat 7

This installation is going to require 2 servers one acts as kerberos KDC server and the other machine is going to be client. Lets assume the FQDN's are (here cw.com is the domain name, make a note of the domain name here):

• Kerberos KDC Server: kdc.cw.com
• Kerberos Client: kclient.cw.com

Important: Make sure that both systems have their hostnames properly set and both systems have the hostnames and IP addresses of both systems in

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##################################
# WORDPRESS NGINX CONFIGURATIONS
##################################
# /etc/nginx/wordpress.conf
#
# Contains a common configuration for use by nginx on a WordPress
# installation. This file should be included in any WordPress site
# nginx virtual host config located in sites-available  with the following line:
#
#       include                         /etc/nginx/wordpress.config;

k4mrul

Set up a VPN Server (PPTP) on AWS

1. Create a EC2 instance using Ubuntu 14.04.
2. In Secure Group Inbound Rules, add a SSH Rule(TCP, Port 22, 0.0.0.0/0) and a Custom TCP Rule(TCP, Port 1723, 0.0.0.0/0).
3. Optional: Associate a Elastic IP with the instance.
4. SSH into the instance.
5. sudo apt-get install pptpd.
6. sudo vim /etc/pptpd.conf. Uncomment localip 192.168.0.1 and remoteip 192.168.0.234-238,192.168.0.245.
7. sudo vim /etc/ppp/pptpd-options. Uncomment ms-dns and ms-wins. Change the IP to Google's DNS like this: