Debian 11

Install wkhtmltopdf on Debian 11

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1. Install prerequisites: Install wget (if not already installed):

# sudo apt update
# sudo apt install wget

2. Install wkhtmltopdf on Debian 11

The links below contain the latest releases as of 10/25/2022. Please double check GitHub for the latest available release: https://github.com/wkhtmltopdf/packaging/releases/latest

# wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6.1-2/wkhtmltox_0.12.6.1-2.bullseye_amd64.deb
# sudo apt install ./wkhtmltox*bullseye_amd64.deb

Check that the version installed is what you were expecting:

# wkhtmltopdf --version
wkhtmltopdf 0.12.6.1 (with patched qt)
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INSTALL IPTABLES IN DEBIAN 11 (BULLSEYE)

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In this article you will learn how to uninstall default nftables framework, install iptables Debian 11 (Bullseye) and basic rules initial configuration.

Uninstall nftables and its Dependencies

IPtables is being replaced by nftables starting with Debian 10 Buster. Debian 11 comes with nftables framework.

To install iptables first we need uninstall nftables and its dependencies.

SSH into your server and run the next commands:

# apt-get remove --auto-remove nftables
# apt-get purge nftables

Install IPtables in Debian 11

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Softether with DNSMasq on Debian 11

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What is SoftEther

A Free Cross-platform Multi-protocol VPN program, as an academic project from University of Tsukuba. It is a single server which support SSL-VPN (HTTPS) and 6 major VPN protocols (OpenVPN, IPsec, L2TP, MS-SSTP, L2TPv3 and EtherIP). I would like to also highlight the VPN over ICMP and VPN over DNS feature if you are inside a very strict network.

VPS Setup Guide

This post doesn’t use SecureNAT. 

On physical server, local bridge will perform better than SecureNAT
DO NOT enable both local bridge and SecureNAT at the same time. Packets will loop infinitly and make your server 100% CPU usage.
Requirement: VPS

Use a freshly installed Debian-11. My sample VM shape was:

  • Spec:RAM: 2048M
  • Disk Space: 20GB
  • CPU: 2vCPU
  • OS:Debian-11 bit (minimal)

Before installing SoftEther Server let us install some prerequisite.

apt-get update
apt-get install build-essential

Download Softether VPN for linux-

cd /opt
wget https://www.softether-download.com/files/softether/v4.43-9799-beta-2023.08.31-tree/Linux/SoftEther_VPN_Server/64bit_-_Intel_x64_or_AMD64/softether-vpnserver-v4.43-9799-beta-2023.08.31-linux-x64-64bit.tar.gz
tar zxf softether-vpnserver-v4.43-9799-beta-2023.08.31-linux-x64-64bit.tar.gz
cd vpnserver
make

Read the Agreement and press 1 three times.

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Install Jitsi on Debian 11

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This article will go through the installation and configuration of the Jitsi Video Conference on the latest Debian 11 Bullseye. At the end of this guide, you will be able to create a meeting using the Jitsi Video conference.

Before you get started, ensure you’ve got the following requirements:

  • Operating System: Debian 11 Bullseye
  • Root privileges

Install Packages Dependencies

The first step is to install some packages dependencies such as gnupg2, nginx-full, sudo, apt-transport-https, curl, and java OpenJDK.

1. Update your Debian repository and install those packages on top using the following command.

sudo apt install apt-transport-https gnupg2 nginx-full sudo curl -y

2. Jitsi required Java OpenJDK version 1.8 or 1.11; the default Debian repository provides Java OpenJDK 1.11.

Now execute the following command to install Java OpenJDK packages.

sudo apt install default-jdk -y

After installation completes, verify the Java OpenJDK version using the following command.

java -version

You will see a similar output as below.

openjdk version "11.0.13" 2021-10-19
OpenJDK Runtime Environment (build 11.0.13+8-post-Debian-1deb11u1)
OpenJDK 64-Bit Server VM (build 11.0.13+8-post-Debian-1deb11u1, mixed mode, sharing)

After all packages have been installed, move on to setting up Jitsi and Prosody repositories.

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Install Apache2, PHP 7.2 and MariaDB 10.5 on Debian 11

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First, update all the packages of the system by below-mentioned command:

sudo apt update

After updating packages, now install the dependencies required by the below-mentioned command:

sudo apt install software-properties-common ca-certificates lsb-release apt-transport-https

Enable SURY Repository

The following step is to integrate the SURY repository into our system. SURY is a Debian-based third-party PHP repository that bundles PHP software, run the following command to add SURY repository:

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Install Proxmox VE 7 on Debian 11 (Bullseye)

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Step 1: Update Debian OS

Ensure your Debian 11 (Bullseye) operating system is upgraded.

sudo apt -y update && sudo apt -y upgrade

Once the upgrade process is complete, reboot the server

sudo systemctl reboot

Step 2: Set Proxmox Server hostname

Let’s set a hostname on the server

sudo hostnamectl set-hostname proxmox7node01.example.com --static

Replaceproxmox7node01.example.com with correct hostname you’re setting on your system. Get the IP address of the primary interface:

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Install Cacti 1.2 on Debian 11

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First, update the repository index.

sudo apt update

Install MariaDB Database

Install MariaDB from Official MariaDB Mirror

Update the repository index and install the required packages.

sudo apt update
sudo apt install -y software-properties-common dirmngr apt-transport-https wget curl

Add signing key to your system.

curl -fsSL https://mariadb.org/mariadb_release_signing_key.asc | sudo gpg --dearmor -o /usr/share/keyrings/mariadb-keyring.gpg

MariaDB foundation offers a repository for Debian to install MariaDB easily. You can choose any one of the download mirrors from the MariaDB download page to set up the repository on your system.

Add MariaDB repository using the below command.

echo 'deb [arch=amd64 signed-by=/usr/share/keyrings/mariadb-keyring.gpg] http://nyc2.mirrors.digitalocean.com/mariadb/repo/10.6/debian bullseye main' | sudo tee /etc/apt/sources.list.d/mariadb.list

Install MariaDB server and client using the following command.

sudo apt update
sudo apt install -y mariadb-server mariadb-client

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Install and Setup ZFS on Debian 11

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The full form of ZFS is Zettabyte File System. The ZFS filesystem is a 128-bit filesystem. The ZFS supported filesystem size is 3×10(to the poer 24) TB. You may never encounter such a big filesystem in real life. The ZFS filesystem was designed to keep and access an insane amount of data.

Enabling Debian contrib Package Repository:

The ZFS filesystem packages are available in the official Debian 11 contrib package repository. The contrib package repository is not enabled on Debian 11 by default. But you can easily enable it from the command-line.

To enable the contrib package repository, open a Terminal and run the following command:

$ sudo apt-get install software-properties-common
$ sudo apt-add-repository contrib

The official Debian contrib repository should be enabled.

$ sudo apt-get update

Installing ZFS Filesystem Dependencies:

You must install the libraries that the ZFS filesystem kernel module depends on before installing the ZFS filesystem on Debian 11.

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Install Proxmox VE 7 on Debian 11 (Bullseye)

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In this guide, we will cover a step-by-step installation of Proxmox VE 7 virtualization software on Debian 11 (Bullseye) Linux system. It’s recommended to deploy Proxmox VE server from a Bare-metal_ISO_Installer, but it’s sometimes inevitable to deploy it on a running instance of Debian 11 (Bullseye) server.

Setup Pre-requisites

For the installation of Proxmox VE 7 on Debian 11 (Bullseye), you need the following requirements to be met;

  • A running instance of Debian Bullseye
  • A 64-bit processor with support for the Intel 64 or AMD64 CPU extensions.
  • Access to Debian server terminal as root or standard user with sudo
  • Server needs internet access
  • Enough hardware resources to be used in Virtualizing other operating systems

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