Configure OpenVPN Clients to use specific DNS Server

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This is a quick tutorial on how to configure OpenVPN clients to use specific DNS server. OpenVPN server can be configured to enable the clients to use specific DNS server for hostname resolution. In our previous tutorials, we have covered how to install and configure OpenVPN server; Install OpenVPN Server on Debian 11/Debian 10 Configure OpenVPN Clients to use specific DNS Server To...

Install and Setup OpenVPN Server on Ubuntu 22.04

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install and setup openvpn server in Linux
In this guide, we are going to learn how to install and setup OpenVPN Server on Ubuntu 22.04. OpenVPN is a robust and highly flexible open-source VPN software that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single UDP or TCP port. It facilitates the extension of private network...

How to Monitor OpenVPN Connections using openvpn-monitor tool

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In this tutorial, we are going to learn how to monitor OpenVPN connections using openvpn-monitor tool. This tutorial focuses on monitoring OpenVPN connections established using the OpenVPN Community Edition. OpenVPN CE provides a de-facto standard for creating a secure VPN connections over the internet using a custom security protocol that utilizes SSL/TLS. While scouring the Internet for the tools that...

Install OpenVPN Server on Debian 11/Debian 10

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In this guide, we are going to learn how to install OpenVPN Server on Debian 11/Debian 10. Install OpenVPN Server on Debian 11/Debian 10 Run system update apt update Install OpenVPN on Debian 11/Debian 10 OpenVPN package is available on the default Debian 11/Debian 10 repos. apt install openvpn -y Create OpenVPN Public Key Infrastructure Initialize the OpenVPN PKI. The PKI consists of: a public key and private...

Assign Static IP Addresses for OpenVPN Clients

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In this guide, we are going to learn how to assign static IP addresses for OpenVPN clients. In most cases, say, if you have some controls in your environment which requires that the hosts have static IP address for the manageability of such controls, you will most likely need to assign a static IP address to your specific clients....

Install Cisco AnyConnect Client on CentOS 8

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Step through this guide to learn how to install Cisco AnyConnect Client on CentOS 8. The Cisco AnyConnect Secure Mobility Client enables users to securely connect to Virtual Private Network (VPN) while enjoying the benefits of a Cisco Secure Sockets Layer (SSL). Install Cisco AnyConnect Client on CentOS 8 Download Cisco AnyConnect Secure Mobility Client Note Cisco AnyConnect Secure Mobility Client is only available...

Setup IPSec VPN Server with Libreswan on CentOS 8

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Setup IPSec VPN Server with Libreswan on CentOS 8
Welcome to our today's guide on how to setup IPSec VPN server with Libreswan on CentOS 8. Libreswan is a free implementation of IKE/IPsec for Linux. IPsec is the Internet Protocol Security which uses strong cryptography to provide both authentication and encryption services and allow you to build secure tunnels through untrusted networks. Everything passing through the untrusted network...

Setup IPSEC VPN using StrongSwan on Debian 10

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In this guide, we are going to learn how to setup IPSec VPN using StrongSwan on Debian 10. StrongSwan is an opensource VPN software for Linux that implements IPSec. It supports various IPsec protocols and extensions such IKE, X.509 Digital Certificates, NAT Traversal… Setup IPSEC VPN using StrongSwan on Debian 10 Run System Update To update your Debian 10 system packages, run...

Install and Setup OpenVPN Server on Ubuntu 20.04

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install and setup openvpn server in Linux
In this guide, we are going to learn how to install and setup OpenVPN Server on Ubuntu 20.04. OpenVPN is a robust and highly flexible open-source VPN software that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single UDP or TCP port. It facilitates the extension of private network across...

Configure OpenVPN LDAP Based Authentication

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In this guide, we are going to learn how to configure OpenVPN LDAP Based Authentication. Identification and authentication of users is usually the first step in implementing access control. OpenVPN server supports multiple authentication protocols and thus can be configured to obtain connecting client information from an LDAP server, and to use that information as a basis for authenticating the client in...