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#!/bin/bash
# This is a bash script that creates a CloudFormation stack for a public certificate with DNS validation, 
# based on input parameters provided as command line flags.
# The script starts by defining the print_help function that displays the usage information for the script,
# along with the available command line flags.
# Next, the script uses the getopts command to parse the command line flags and store their values in variables
# (stack_name, csv_file, and domain_name). If any of the required flags are missing, the script will display 
# an error message and exit.
# The script then reads the contents of the CSV file into a bash array (subject_alternative_names), which 
# will be used to specify the SubjectAlternativeNames for the certificate.

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#!/bin/bash

# This bash script will check if a branch named BRANCH_NAME exists in the Git repository. 
# If it exists, it will checkout to that branch and reset the branch to the previous commit, 
# discarding all previous commits except the last one. It will then rename the latest 
# commit to COMMIT_NAME and push the rewritten branch to the remote repository. 
# Finally, it will display a message indicating that the branch has been rewritten 
# and the last commit has been renamed.

if [ $# -ne 2 ]; then

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# This script is a command line tool that reads German conjugations of the verb "sein" (to be) 
# in the present tense using Festival TTS engine on Linux. The script declares an array of strings, 
# each string containing a conjugation of the verb "sein" for a different personal pronoun. 
# Then, it uses an infinite while loop to iterate over the array, reading each conjugation 60 times 
# with a sleep of 1 second in between each reading. The script uses the echo "$i" | festival --tts -voice de 
# command to read the current string in the array, where -voice de option is added to the festival --tts command,
#  which causes the TTS engine to use a German voice. The script is useful for language learners who want to 
# practice the conjugations of the verb "sein" in the present tense on Linux.
# How to install festival:
# sudo apt-get install festival

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###################################################################
# Protected links
#
# Protects against creating or following links under certain conditions
# Debian kernels have both set to 1 (restricted)
# See https://www.kernel.org/doc/Documentation/sysctl/fs.txt
#fs.protected_hardlinks=0
#fs.protected_symlinks=0
net.ipv4.ip_forward=1
#net.ipv4.ip_local_reserved_ports=30000-32767

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global
        localpeer haproxy-1

defaults 
        timeout connect 5s
        timeout client 1m
        timeout server 1m        


peers haproxy-peers

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#!/bin/bash
##############################################################################
# SHORTCUTS and HISTORY
##############################################################################

CTRL+A  # move to beginning of line
CTRL+B  # moves backward one character
CTRL+C  # halts the current command
CTRL+D  # deletes one character backward or logs out of current session, similar to exit
CTRL+E  # moves to end of line

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#!/bin/sh

#Check the Drive Space Used by Cached Files
du -sh /var/cache/apt/archives

#Clean all the log file
#for logs in `find /var/log -type f`;  do > $logs; done

logs=`find /var/log -type f`
for i in $logs

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# Ask for the user password
# Script only works if sudo caches the password for a few minutes
sudo true

# Install kernel extra's to enable docker aufs support
# sudo apt-get -y install linux-image-extra-$(uname -r)

# Add Docker PPA and install latest version
# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"

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#!/bin/bash
JDC_ORG_UNIT=""
JDC_ORG_ENV=""
JDC_DOMAIN_NAME=mydomain.com
JDC_AD_DC1_IP=192.168.240.11
JDC_AD_DC2_IP=192.168.240.12
JDC_AD_DC1_NAME=dc1-inf-ad-ds1.mydomain.com
JDC_AD_DC2_NAME=dc1-inf-ad-ds2.mydomain.com
JDC_HOST_NAME=$(hostname | awk -F'.' '{print $1}').$JDC_DOMAIN_NAME
JDC_GROUP_PREFIX="os"

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sudo snap install yq

sudo cp /etc/netplan/00-installer-config.yaml /etc/netplan/00-installer-config.yaml.bk_`date +%Y%m%d%H%M`

cat /etc/netplan/00-installer-config.yaml | yq -e '.network.ethernets.ens160.nameservers.addresses[0]="192.168.10.11" | .network.ethernets.ens160.nameservers.addresses[1]="192.168.10.12"' | sudo tee /etc/netplan/00-installer-config.yaml

sudo netplan apply