kenshin17

###############################################################################
# The MIT License
#
# Copyright 2012-2014 Jakub Jirutka <[email protected]>.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is

kenshin17

# see How to Install Redis Server on CentOS 7 - http://linoxide.com/storage/install-redis-server-centos-7/

# --- Compiling ---
$ yum install gcc make tcl
$ REDIS_VER=3.2.3
$ wget http://download.redis.io/releases/redis-$REDIS_VER.tar.gz
$ tar xzvf redis-$REDIS_VER.tar.gz
$ cd redis-$REDIS_VER
$ make
$ make test

kenshin17

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs

kenshin17

	##
	# SSL Settings
	##

        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_ciphers 'TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-256-GCM-SHA384:TLS13-AES-128-GCM-SHA256:EECDH+CHACHA20:EECDH+AESGCM';
        ssl_prefer_server_ciphers on;
        ssl_session_cache shared:SSL:20m;  
        ssl_session_timeout 15m;  
        ssl_session_tickets off;  

kenshin17

#!/bin/bash
# Author: kenshin17
# OS: Centos 7
# Description: Script install NDP Proxy Daemon, active full subnet ipv6.

IPv6SUBNET="xxxx:xxxx:xxxx:xxxx::/64"

echo "######################## CONFIG SYSCTL #########################"
echo "net.ipv6.conf.all.accept_ra = 2" >> /etc/sysctl.conf
echo "net.ipv6.conf.eth0.accept_ra = 2" >> /etc/sysctl.conf

kenshin17

# AWS specific install of Docker
sudo yum update -y
sudo yum install -y docker
sudo service docker start
sudo usermod -a -G docker ec2-user

# exit the SSH session, login again

# Docker
docker run -d --hostname my-rabbit --name some-rabbit -p 4369:4369 -p 5671:5671 -p 5672:5672 -p 15672:15672 rabbitmq

kenshin17

#!/bin/bash

ping_ip()
{
IP=$1
ping $1 -c 1 >/dev/null 2>&1
if [ $? = 1 ]
then
   echo "$1 is down"
fi

kenshin17

#!/bin/bash
# Author      : kenshin17
# OS          : Ubuntu 18.04.2 LTS
# LastUpdate  : 11:55 2019.05.13
# Description : Compile HAProxy 1.9.6 with Lua 5.3.5 and OpenSSL 1.1.0h and multithreading support on Ubuntu 18.04.2 LTS
###########################################

export LC_CTYPE=en_US.UTF-8
export LC_ALL=en_US.UTF-8
SETUP_DIR_WORKSPACE="/opt/setup"

kenshin17

Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list

Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic

Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000

... wait a minute ...

kenshin17

#!/bin/bash

#File: /etc/profile.d/ssh_login_alert.sh
##################################
#wget https://raw.githubusercontent.com/xxxx -O /etc/profile.d/ssh_login_alert
#chmod +x /etc/profile.d/ssh_login_alert
##################################

USERID="xxx"
KEY="xxx:xx-xx"