MVKozlov

Let's say you have a SysV Init Script named foo

1. Copy the file to /etc/init.d/foo

2. Enable the SysV service: chkconfig --add foo

3. Enable the SysV service: chkconfig foo on

4. Start the service: service foo start. After this, systemd-sysv-generator will generate this file /run/systemd/generator.late/foo.service, copy this file to /etc/systemd/system by running: cp /run/systemd/generator.late/foo.service /etc/systemd/system/foo.service

5. Edit /etc/systemd/system/foo.service by running systemctl edit foo.service, add in the following line to foo.servie (this makes the service installable)

[Install]

MVKozlov

Replacing Create React App with the Next.js CLI

How dare you make a jab at Create React App!?

Firstly, Create React App is good. But it's a very rigid CLI, primarily designed for projects that require very little to no configuration. This makes it great for beginners and simple projects but unfortunately, this means that it's pretty non-extensible. Despite the involvement from big names and a ton of great devs, it has left me wanting a much better developer experience with a lot more polish when it comes to hot reloading, babel configuration, webpack configuration, etc. It's definitely simple and good, but not amazing.

Now, compare that experience to Next.js which for starters has a much larger team behind it provided by a world-class company (Vercel) who are all financially dedicated to making it the best DX you could imagine to build any React application. Next.js is the 💣-diggity. It has amazing docs, great support, can grow with your requirements into SSR or static site generation, etc.

So why

MVKozlov

function Get-SshFingerprint {
  param( [string]$ssh_server )

  # Load WinSCP .NET assembly
  Add-Type -Path "${env:ProgramFiles(x86)}\WinSCP\WinSCPnet.dll"

  # Setup session options
  $sessionOptions = New-Object WinSCP.SessionOptions -Property @{
      Protocol = [WinSCP.Protocol]::Sftp
      HostName = $ssh_server

MVKozlov

Про токены, JSON Web Tokens (JWT), аутентификацию и авторизацию. Token-Based Authentication

Last major update: 25.08.2020

• Что такое авторизация/аутентификация
• Где хранить токены
• Как ставить куки ?
• Процесс логина
• Процесс рефреш токенов
• Кража токенов/Механизм контроля токенов

MVKozlov

#!/usr/bin/env python3
"""
Very simple HTTP server in python for logging requests
Usage::
    ./server.py [<port>]
"""
from http.server import BaseHTTPRequestHandler, HTTPServer
import logging

class S(BaseHTTPRequestHandler):

MVKozlov

# Adapted from Vadims Podāns' amazing work here.
# https://www.sysadmins.lv/blog-en/how-to-convert-pkcs12pfx-to-pem-format.aspx
#
# Also, if you need a more complete PKI PowerShell module, he has authored one here:
# https://github.com/Crypt32/PSPKI
#
# This version of the function includes a few fixes from the module's version of the
# function and changes up the output options so you get separate .crt/.key files by
# default named the same as the pfx file (or thumbprint if directly referencing a cert).
# -IncludeChain adds an additional -chain.pem. Relative paths are now

MVKozlov

#!/usr/bin/env ruby

require 'faraday'
require 'json'
require 'gitlab'

module Redmine
  Host = nil
  APIKey = nil