Andrius K akrisiun

## gist:7440d84138c91ca23d7a33921053659f

      
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                akrisiun
                / gist:7440d84138c91ca23d7a33921053659f
            
            
              Last active
              December 1, 2023 20:49
                — forked from nikhilgeo/gist:911b76faf3e965143128a7ccb74772c9
            
              
                Create CA and self-signed cert X.509 v3
              
          
    1 Create CA
1.1 Create keys

openssl genrsa -out rootCA_key.key 2048. 
	-des3 algorithm to encrypt the key and will require you to enter a password in order for the key file to be created.
1.2 Create Root CA cert with constraint CA = true. 
openssl req -x509 -new -nodes -key rootCA_key.key -sha256  -days 1024  -out rootCA_crt.pem \ 
 -extensions v3_ca -reqexts v3_req -config /usr/local/etc/openssl/openssl.cnf


## self-signed-certificate-with-custom-ca.md

      
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                akrisiun
                / self-signed-certificate-with-custom-ca.md
            
            
              Created
              July 26, 2020 13:03
                — forked from fntlnz/self-signed-certificate-with-custom-ca.md
            
              
                Self Signed Certificate with Custom Root CA
              
          
    Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!
openssl genrsa -des3 -out rootCA.key 4096

  
## nodeapp.sh
#!/bin/bash
#
# nodejs - Startup script for node.js server
# /etc/init.d/app1
#
# chkconfig: 35 99 99
# description: Node.js node /apps/app1/server.js

rootdir="/var/www/apps/app1"
server="$rootdir/server.js"

## Install_gitflow_on_Windows.md

      
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                akrisiun
                / Install_gitflow_on_Windows.md
            
            
              Created
              February 17, 2020 12:56
                — forked from ilyar/Install_gitflow_on_Windows.md
            
              
                Install gitflow on Windows
              
          
    Install gitflow on Windows

Download and install Git from  MSysGit  or Git SCM.
Download and install getopt.exe from the util-linux package into C:\Program Files\Git\bin. (Only getopt.exe, the others util-linux files are not used). Also install libintl3.dll and libiconv2.dll from the Dependencies packages (libintl and libiconv), into the same directory.

Suppose that Git is installed in the folder c:\bin\git and GnuWin32 in the folder c:\bin\GnuWin32.

Clone the git-flow sources from GitHub:
$ git clone --recursive https://github.com/nvie/gitflow.git


## tips_lsof.sh
# filter LISTEN - faster variant
lsof -anP -i4 -sTCP:LISTEN

# exclude UDP
lsof -anP -i4 -sTCP:LISTEN | grep TCP

# lsof with ports sort:
lsof -anP -i4 -sTCP:LISTEN | grep -v UDP | awk {'printf("%18s %-12s %8s %s %s %s\n", $9,$1,$2,$4,$3,$10)'} | sort -u

# docker-ps

## .bashrc
#
# Bash settings
#

# Append to the history file instead of overwrite it
shopt -s histappend

# Append the previous command to history each time a prompt is shown
PROMPT_COMMAND="history -a; $PROMPT_COMMAND"

## k8s-services.yaml
---
apiVersion: v1
kind: ConfigMap
metadata: {name: content}
data:
  index.html: '<html><body><h1>Hello world</h1></body></html>'
---
apiVersion: apps/v1beta2
kind: Deployment
metadata: {name: lb}

## Indexes Usage Stats.sql
DECLARE @TableName VARCHAR(20) =  NULL

SELECT	TableName		= OBJECT_NAME(S.object_id),
		IndexName		= I.name,
        UserSeeks		= S.user_seeks,
        UserScans		= S.user_scans,
        UserLookups		= S.user_lookups,
        UserUpdates		= S.user_updates ,
		IsPrimaryKey	= i.is_primary_key
FROM    sys.dm_db_index_usage_stats S

## server.js
// server.js
// https://medium.com/better-programming/demystifying-reacts-server-side-render-de335d408fe4

import express from "express";
import path from "path";

import React from "react";
import { renderToString } from "react-dom/server";
import Layout from "./components/Layout";

## render.js
// https://medium.com/homeaway-tech-blog/profiling-react-server-side-rendering-to-free-the-node-js-event-loop-7f0fe455a901
const ReactDOMServer = require('react-dom/server');

const render = (reactComponent) => {
    return new Promise((resolve, reject) => {
        const body = [];
        const bodyStream = ReactDOMServer.renderToNodeStream(reactComponent);
        bodyStream.on('data', (chunk) => {
            body.push(chunk.toString());
        });
	#!/bin/bash
	#
	# nodejs - Startup script for node.js server
	# /etc/init.d/app1
	#
	# chkconfig: 35 99 99
	# description: Node.js node /apps/app1/server.js

	rootdir="/var/www/apps/app1"
	server="$rootdir/server.js"
	# filter LISTEN - faster variant
	lsof -anP -i4 -sTCP:LISTEN

	# exclude UDP
	lsof -anP -i4 -sTCP:LISTEN \| grep TCP

	# lsof with ports sort:
	lsof -anP -i4 -sTCP:LISTEN \| grep -v UDP \| awk {'printf("%18s %-12s %8s %s %s %s\n", $9,$1,$2,$4,$3,$10)'} \| sort -u

	# docker-ps
	#
	# Bash settings
	#

	# Append to the history file instead of overwrite it
	shopt -s histappend

	# Append the previous command to history each time a prompt is shown
	PROMPT_COMMAND="history -a; $PROMPT_COMMAND"
	---
	apiVersion: v1
	kind: ConfigMap
	metadata: {name: content}
	data:
	index.html: '<html><body><h1>Hello world</h1></body></html>'
	---
	apiVersion: apps/v1beta2
	kind: Deployment
	metadata: {name: lb}
	DECLARE @TableName VARCHAR(20) = NULL

	SELECT TableName = OBJECT_NAME(S.object_id),
	IndexName = I.name,
	UserSeeks = S.user_seeks,
	UserScans = S.user_scans,
	UserLookups = S.user_lookups,
	UserUpdates = S.user_updates ,
	IsPrimaryKey = i.is_primary_key
	FROM sys.dm_db_index_usage_stats S
	// server.js
	// https://medium.com/better-programming/demystifying-reacts-server-side-render-de335d408fe4

	import express from "express";
	import path from "path";

	import React from "react";
	import { renderToString } from "react-dom/server";
	import Layout from "./components/Layout";
	// https://medium.com/homeaway-tech-blog/profiling-react-server-side-rendering-to-free-the-node-js-event-loop-7f0fe455a901
	const ReactDOMServer = require('react-dom/server');

	const render = (reactComponent) => {
	return new Promise((resolve, reject) => {
	const body = [];
	const bodyStream = ReactDOMServer.renderToNodeStream(reactComponent);
	bodyStream.on('data', (chunk) => {
	body.push(chunk.toString());
	});