Linux command line openvpn

Linux command line openvpn

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How to Setup OpenVPN Command Line on Linux

This guide describes the command line setup of OpenVPN connection type on various most popular Linux distributions. OpenVPN is strongly recommended for Linux since the support of open source technologies (like OpenVPN) on Linux is much better than proprietary technologies such as PPTP. The guide uses Ubuntu 17 for demonstration purposes.

To set up OpenVPN on Linux, you will need:

• A secure FastVPN connection (Don’t have one? Sign up here!);
• An internet connection;
• Access to you FastVPN Account Panel.

Follow the steps below to configure OpenVPN on Linux devices via CLI :

1. Login as a root user. If you are not a root user, run the following command and click the Enter key.

2. Type your root password and press Enter.

3. Now it is necessary to install the OpenVPN package on your Linux system. For this, type the command below and press Enter.

For Debian, Ubuntu, Mint:

sudo apt-get install openvpn

sudo yum install openvpn

sudo dnf install openvpn

sudo pacman -S openvpn

For openSUSE:

zypper install openvpn

4. Enter the following command to change a directory for FastVPN config files:

5. Run the command below to save the FastVPN OpenVPN configs zip file from our repository. Press the Enter key and proceed to the next step.

wget https://vpn.ncapi.io/groupedServerList.zip

6. Unzip the configs files into your Documents directory by using the following command and press Enter:

unzip groupedServerList.zip

7. After all the required configuration files are unzipped, they will be shown in the terminal window:

8. Use the command below to create an openvpn directory and move ovpn config files there:

mkdir -p /etc/openvpn && mv tcp /etc/openvpn && mv udp /etc/openvpn && rm -f groupedServerList.zip

9. Depending on which protocol is preferable for you, you can connect to FVPN running the following commands:

sudo openvpn —config /etc/openvpn/tcp/NCVPN-AU-Melbourne-TCP.ovpn —daemon

NOTE: «NCVPN-AU-Melbourne-TCP.ovpn» and «NCVPN-AU-Melbourne-TCP.ovpn» can be changed to any preferred location from groupedServerList.zip

Congratulations! The setup of FastVPN connection has been completed.

11. To verify that your VPN connection is successful, wait for about a minute and enter the command below:

You will see your new public IP address:

NOTE: You can check what VPN connection is currently running by entering: ps aux|grep openvpn

12. In order to change your VPN connection, you need to stop all active VPN connections first. For this, run the command:

After that, please follow the Steps 9-10 to connect to any other preferred location.

13. To disconnect from VPN, use the following command:

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Access Server command line interface tools

Pretty much every aspect of the configuration of the OpenVPN Access Server program can be configured through the command line interface. There are programs available in the directory /usr/local/openvpn_as/scripts/ that can be used to configure the Access Server from scratch, or to make adjustment to server settings, or to change properties set for users and groups. Certain tasks can only be done from the command line and are not implemented in the Graphical User Interface (GUI).

It is assumed that people that are going to use the CLI are familiar with at least some basics of Linux administration, namely the ability to log on to the server (console or SSH), to obtain root privileges, and to change directories in the Linux operating system.

Most of the command line parameters are executed as root user in the /usr/local/openvpn_as/scripts/ directory.

We recommend you use copy and paste to execute the commands where possible as manually typing it may result in a slight difference, and the command prompt is not a forgiving environment.

Authentication before using the CLI

Much of the functionality for managing users and user permissions, as well as server configuration and other tasks, is contained in the sacli program. This program requires that you have root privileges. Therefore all commands used in the documentation here assume that you are on the console of the server or logged on via an SSH session to the server, and that you have either the ability to run commands with «sudo» or that you are logged on as «root» user.

Overview

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Create a VPN connection from Linux Terminal

In this article, we’ll look at how to create a VPN connection from the Linux terminal console and connect to a remote VPN server from the command line. Consider how to create L2TP, PPTP, OpenVPN, and SSTP VPN connections on Linux.

Creating an L2TP VPN Connection in Linux

You can use NetworkManager to create L2TP VPN connections from the Linux console.

To install NetworkManager with L2TP support, run the command:

# yum -y install NetworkManager-l2tp

$ sudo add-apt-repository ppa:nm-l2tp/network-manager-l2tp $ sudo apt-get install network-manager-l2tp

To create a new L2TP VPN connection, use the command:

$ nmcli connection add connection.id [VPNConnectionName] con-name [VPNConnectionName] type VPN vpn-type l2tp ifname -- connection.autoconnect no ipv4.method auto vpn.data "gateway = [ipv4], ipsec-enabled = yes, ipsec-psk = 0s"$(base64 

$ nmcli c show id [VPNConnectionName]

$ nmcli c up [VPNConnectionName]

$ nmcli c down [VPNConnectionName]

$ sudo apt install pptp-linux

$ sudo nano /etc/ppp/peers/PPTP

pty "pptp YOUR_VPN_SERVER --nolaunchpppd --debug" name VPNUsername password VPNPassword remotename PPTP require-mppe-128 require-mschap-v2 refuse-eap refuse-pap refuse-chap refuse-mschap noauth debug persist maxfail 0 defaultroute replacedefaultroute usepeerdns

$ chmod 600 /etc/ppp/peers/PPTP

$ sudo add-apt-repository ppa:eivnaes/network-manager-sstp $ sudo apt update $ sudo apt install network-manager-sstp sstp-client

$ sudo sstpc --cert-warn --save-server-route --user --password  usepeerdns require-mschap-v2 noauth noipdefault nobsdcomp nodeflate

$ sudo nano /etc/ppp/peers/sstptest

 remotename sstptest linkname sstptest ipparam sstptest pty "sstpc --ipparam sstptest --nolaunchpppd sstpvpn.contoso.com" name user1 plugin sstp-pppd-plugin.so sstp-sock /var/run/sstpc/sstpc-sstp-test usepeerdns require-mppe require-mschap-v2 refuse-eap refuse-pap refuse-chap refuse-mschap nobsdcomp nodeflate 

# Secrets for authentication using CHAP # client server secret IP addresses user1 * xxxxxx *

$ sudo route add -net 192.168.2.0/24 dev ppp0

$ sudo apt-get update && apt-get upgrade $ sudo apt-get install openvpn

# yum install epel-release –y. # yum install openvpn –y

$ sudo openvpn --config /etc/openvpn/client.ovpn --daemon

$ sudo vi /lib/systemd/system/OpenVPNClientCorp.service

$ sudo chmod 644 /lib/systemd/system/OpenVPNClientCorp.service

$ sudo systemctl daemon-reload $ sudo systemctl enable OpenVPNClientCorp.service