gilangvperdana

TightVNC

Make your ubuntu server to GUI Based

Installation

sudo apt install xfce4 xfce4-goodies -y 
sudo apt install tightvncserver -y 
vncserver

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Inject IP Tables

#/bin/bash
iptables -t nat -v -L -n --line-number
echo -n "IP VM who want to exposed (x.x.x.x:port): "
read ip_vm
echo $ip_vm

echo -n "Enter Port Access: " 
read port

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Mikrotik OpenVPN Client

If you want to make your Mikrotik to be OpenVPN Client you can follow this guide.

Goals

• Can remote mikrotik from Pritunl VPN Server Endpoint

Environment

• Mikrotik
• Pritunl Server

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net.ipv4.ip_nonlocal_bind=1
net.ipv6.ip_nonlocal_bind=1
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-ip6tables=1
net.ipv4.neigh.default.gc_thresh1=128
net.ipv4.neigh.default.gc_thresh2=28672
net.ipv4.neigh.default.gc_thresh3=32768
net.ipv6.neigh.default.gc_thresh1=128
net.ipv6.neigh.default.gc_thresh2=28672
net.ipv6.neigh.default.gc_thresh3=32768

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Forward DNS with BIND9 and Reverse It with NGINX !

• If you want to create a DNS forwarder Instance who will be Forward your IP DNS Private to DNS Public you can follow this guide.
• This guide will be implemented on Ubuntu 20.04 LTS.
• This bind9 port (53) will be forwarded too with Nginx.

Prerequisite

• Ubuntu Server 20.04 LTS
  • 1 for BIND9
  • 1 for VM testing
  • 1 for Nginx Reverse Proxy

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RSyslog for Monitor LOGS

Goals

• Use rsyslog to export log

Env

• 172.16.1.2 is Server Collector
• 172.16.1.3 is Client LOG

Prerequisites

• Validates rsyslog available?

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apiVersion: v1
kind: Namespace
metadata:
  name: loki-stack
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: loki
  namespace: loki-stack

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{
  "annotations": {
    "list": [
      {
        "builtIn": 1,
        "datasource": {
          "type": "datasource",
          "uid": "grafana"
        },
        "enable": true,

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Automaticly delete image dangling on Docker Image

• Create script

nano dockerimageprune.sh

#!/bin/bash

docker image prune -a -f

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General Teleport

If you want to make a cluster for jump host/bastion to your server, you can install Teleport. on this guide, will be guided to install then expose with NGINX Reverse proxy.

Prerequisites

• Ubuntu 20.04LTS
• 1 GB RAM
• 1 VCPU
• 20 GB Storage

Installation Teleport