gilangvperdana

Forward Command

If you have an Tunnel SOCKSv5 Proxy on Port 500, then you want to use that proxy on Postman with port 600

hpts -s 127.0.0.1:500 -p 600

Source

• https://stackoverflow.com/questions/47296837/using-socks-proxy-with-postman

gilangvperdana

#!/bin/bash

# List of gateways with corresponding interfaces
gateways=("192.168.100.1" "192.168.70.1" "192.168.80.1")
interfaces=("eth0" "eth1" "eth2")

# Function to check internet connectivity using a specific interface and gateway
check_gateway_connectivity() {
  interface=$1
 gateway=$2

gilangvperdana

Goals

• Can use Ubuntu Server 20.04 LTS to be Router Gateway include DHCP Server
• Client who connected to Ubuntu Server can be access Internet

Environement

• Ubuntu 20.04 LTS
• 2 Interface
  • 1 Interface from WAN / ISP (enp2s0)
  • 1 Interface for distribution clients (enx00e04c534458)

gilangvperdana

General

If you want to block port node exporter access from outside you can use this command

iptables -A INPUT -p tcp -s 10.7.0.0/24 --dport 9100 -j ACCEPT
iptables -A INPUT -p tcp -s localhost --dport 9100 -j ACCEPT
iptables -A INPUT -p tcp --dport 9100 -j DROP

• 10.7.0.0/24 & localhost are IP ALLOWED to access port 9100

gilangvperdana

General

If you want to mount your NFS Directory to Windows Server 2019 you can follow this guide.

Install NFS Client on Windows Server

Open Powershell then execute this

Import-Module ServerManager
Install-WindowsFeature -Name FS-NFS-Service
Install-WindowsFeature NFS-Client

gilangvperdana

General

If you want to change favicon & left logo side you can replace this path

• /usr/share/pve-manager/images/proxmox_logo.png
• /usr/share/pve-manager/images/favicon.ico
• /usr/share/pve-manager/images/logo-128.png

Size requirement

• proxmox_logo.png -> 172x30
• favicon.ico -> 32x32
• logo-128.png -> 128x128

gilangvperdana

General

• This note, just wanna to share about OAUTH2PROXY for authenticate all our endpoints behind Nginx.

Prepare OAUTH2PROXY

wget https://github.com/oauth2-proxy/oauth2-proxy/releases/download/v7.4.0/oauth2-proxy-v7.4.0.linux-amd64.tar.gz
tar -xzvf oauth2-proxy-v7.4.0.linux-amd64.tar.gz
cd oauth2-proxy-v7.4.0.linux-amd64

gilangvperdana

Kubernetes with KubeSpray on BareMetal Ubuntu Server 20.04 LTS

Provisioning Kubernetes Cluster BareMetal with KubeSpray

Environment

2x Ubuntu Server 20.04LTS

gilangvperdana

How to automatically start ssh server on boot on Windows Subsystem for Linux

Microsoft partnered with Canonical to create Bash on Ubuntu on Windows, running through a technology called the Windows Subsystem for Linux. Below are instructions on how to set up the ssh server to run automatically at boot.

1. Edit the /etc/ssh/sshd_config file by running the command sudo vi /etc/ssh/sshd_config and do the following
   1. Change Port to 2222 (or any other port above 1000)
   2. Change PasswordAuthentication to yes. This can be changed back to no if ssh keys are setup.
2. Restart the ssh server:
   • sudo service ssh --full-restart
3. With this setup, the ssh server must be turned on every time you run Bash on Ubuntu on Windows, as by default it is off. Use this command to turn it on:

gilangvperdana

Install Pritunl

sudo apt-get update
sudo apt-get -y upgrade

echo "deb http://repo.pritunl.com/stable/apt focal main" | sudo tee /etc/apt/sources.list.d/pritunl.list
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
curl -fsSL https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com --recv 9DA31620334BD75D9DCB49F368818C72E52529D4
sudo apt update