Md. Abu Raihan Srabon aburaihan-dev

## LinuxMint Docker Installation
Links for lookup:
  1. https://linuxhint.com/install_docker_linux_mint/
  2. https://www.unixtutorial.org/install-docker-in-linux-mint-19-1
  3. https://forums.linuxmint.com/viewtopic.php?t=300469


Steps to Follow:
  1. remove old docker if any: sudo apt remove docker docker-engine docker.io containerd runc
  2. update repo: sudo apt update
  3. install basic dependencies: sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common

## VM config for all Intellij IDE's
-server
-Xms2g
-Xmx2g
-XX:NewRatio=3
-Xss16m
-XX:+UseConcMarkSweepGC
-XX:+CMSParallelRemarkEnabled
-XX:ConcGCThreads=4
-XX:ReservedCodeCacheSize=240m
-XX:+AlwaysPreTouch

## JHipster base64 key generate

echo -n "AR2019Srabon" | openssl sha512 -hmac "TrollHunters"

36e8d232898fff2d7dfccab5b8945d8dd93e5459430784811d0096d44a22944031f4c5a9cecd11ca7a14da1a1de1dce0c1390dab22936355697d93c19c02dcf2


dd if=/dev/random bs=20 count=1 status=none | base64

68XClBM6qR7bd7smQKTLA+5JhkI=

## Monitor network bandwidth on Linux
https://www.binarytides.com/linux-commands-monitor-network/


1. Overall bandwidth - nload, bmon, slurm, bwm-ng, cbm, speedometer, netload

2. Overall bandwidth (batch style output) - vnstat, ifstat, dstat, collectl

2. Bandwidth per socket connection - iftop, iptraf, tcptrack, pktstat, netwatch, trafshow

3. Bandwidth per process - nethogs

## Spring Boot Hibernate: Database Configuration
## Spring DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)
spring.datasource.url=jdbc:postgresql://localhost:5432/:DB_NAME:
spring.datasource.username= :username:
spring.datasource.password= :password:

# The SQL dialect makes Hibernate generate better SQL for the chosen database
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect

# Hibernate ddl auto (create, create-drop, validate, update)
spring.jpa.hibernate.ddl-auto = create-drop

## download-file.js
axios({
  url: 'http://localhost:5000/static/example.pdf',
  method: 'GET',
  responseType: 'blob', // important
}).then((response) => {
  const url = window.URL.createObjectURL(new Blob([response.data]));
  const link = document.createElement('a');
  link.href = url;
  link.setAttribute('download', 'file.pdf');
  document.body.appendChild(link);

## default.conf
server {
  listen 80 default_server;
  listen [::]:80 default_server;

  root /your/root/path;

  index index.html;

  server_name you.server.com;

## Install Asterisk 14 on centos 7
:: Disable SELinux ‼️ 🔴🔴🔴
    1. check selinux status → sestatus
    2. RUN → vi /etc/sysconfig/selinux
    3. SELINUX=disabled
    4. reboot the server → reboot now
    5. Check status again → sestatus 👓

😐 Now Install Asterisk →

:: wget https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-14-current.tar.gz

## LICENCE SUBLIME TEXT
## Sublime Text 3 Serial key build is 3176

> * Added these lines into  /etc/hosts

127.0.0.1       www.sublimetext.com
127.0.0.1       license.sublimehq.com

> * Used the license key

----- BEGIN LICENSE -----

## LICENCE SUBLIME TEXT
## Sublime Text 3 Serial key build is 3176

> * Added these lines into  /etc/hosts

127.0.0.1       www.sublimetext.com
127.0.0.1       license.sublimehq.com

> * Used the license key

----- BEGIN LICENSE -----
	Links for lookup:
	1. https://linuxhint.com/install_docker_linux_mint/
	2. https://www.unixtutorial.org/install-docker-in-linux-mint-19-1
	3. https://forums.linuxmint.com/viewtopic.php?t=300469


	Steps to Follow:
	1. remove old docker if any: sudo apt remove docker docker-engine docker.io containerd runc
	2. update repo: sudo apt update
	3. install basic dependencies: sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
	-server
	-Xms2g
	-Xmx2g
	-XX:NewRatio=3
	-Xss16m
	-XX:+UseConcMarkSweepGC
	-XX:+CMSParallelRemarkEnabled
	-XX:ConcGCThreads=4
	-XX:ReservedCodeCacheSize=240m
	-XX:+AlwaysPreTouch

	echo -n "AR2019Srabon" \| openssl sha512 -hmac "TrollHunters"

	36e8d232898fff2d7dfccab5b8945d8dd93e5459430784811d0096d44a22944031f4c5a9cecd11ca7a14da1a1de1dce0c1390dab22936355697d93c19c02dcf2


	dd if=/dev/random bs=20 count=1 status=none \| base64

	68XClBM6qR7bd7smQKTLA+5JhkI=
	https://www.binarytides.com/linux-commands-monitor-network/


	1. Overall bandwidth - nload, bmon, slurm, bwm-ng, cbm, speedometer, netload

	2. Overall bandwidth (batch style output) - vnstat, ifstat, dstat, collectl

	2. Bandwidth per socket connection - iftop, iptraf, tcptrack, pktstat, netwatch, trafshow

	3. Bandwidth per process - nethogs
	## Spring DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)
	spring.datasource.url=jdbc:postgresql://localhost:5432/:DB_NAME:
	spring.datasource.username= :username:
	spring.datasource.password= :password:

	# The SQL dialect makes Hibernate generate better SQL for the chosen database
	spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect

	# Hibernate ddl auto (create, create-drop, validate, update)
	spring.jpa.hibernate.ddl-auto = create-drop
	axios({
	url: 'http://localhost:5000/static/example.pdf',
	method: 'GET',
	responseType: 'blob', // important
	}).then((response) => {
	const url = window.URL.createObjectURL(new Blob([response.data]));
	const link = document.createElement('a');
	link.href = url;
	link.setAttribute('download', 'file.pdf');
	document.body.appendChild(link);
	server {
	listen 80 default_server;
	listen [::]:80 default_server;

	root /your/root/path;

	index index.html;

	server_name you.server.com;
	:: Disable SELinux ‼️ 🔴🔴🔴
	1. check selinux status → sestatus
	2. RUN → vi /etc/sysconfig/selinux
	3. SELINUX=disabled
	4. reboot the server → reboot now
	5. Check status again → sestatus 👓

	😐 Now Install Asterisk →

	:: wget https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-14-current.tar.gz
	## Sublime Text 3 Serial key build is 3176

	> * Added these lines into /etc/hosts

	127.0.0.1 www.sublimetext.com
	127.0.0.1 license.sublimehq.com

	> * Used the license key

	----- BEGIN LICENSE -----