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- OpenConnect is a VPN client created to support Cisco’s AnyConnect SSL VPN. Later it added the support for Juniper Networks or Pulse Secure. OpenConnect is not officially supported by Cisco Systems and Juniper Networks. The OpenConnect installation on Ubuntu is very simple and straightforward as it is available on the Ubuntu base software.
- Wrapper script for OpenConnect supporting Azure AD (SAMLv2) authentication to Cisco SSL-VPNs. Installation Using pip/pipx. A generic way that works on most 'standard' Linux distributions out of the box.
- Here’s the simple steps for you to connect to a Cisco VPN in Ubuntu 18.04 LTS. Cisco, an American company is the leading provider and manufacturer of enterprise network devices, telecommunication hardware, networking security and networking software. According to computer profile as of April 2018, Cisco holds a 73.9% market which makes it the undisputed.Continue Reading.
- Open Terminal Install OpenConnect from the Ubuntu Universe software repository $ sudo apt-get install openconnect network-manager-openconnect network-manager-openconnect-gnome Open System Settings = Network, click the plus button in the bottom left corner of the window to add a.
Sudo apt-get install openconnect network-manager-openconnect-gnome. To configure the VPN using the Network Manager: Click on the 'Network Manager' icon in your System Tray on your desktop. In the menu that appears, go to VPN Connections - Configure VPN; Click Add. Choose Cisco AnyConnect Compatible VPN (openconnect) and click Create.
Openconnect Cisco Anyconnect Ubuntu Free
Problem
I needed to maintain a continuous (or near-continuous) VPN connection to a server (server 1) from another server (server 2) that was running a Tomcat web-app (on Ubuntu Server 16.04). Server 1 was part of a network which provides secured VPN access to external connections via Cisco Anyconnect.
Solution
Users have reported that this approach does not work with newer version of openconnect etc.
Given I haven't attempted this approach (nor have need of it) I am just leaving this here for historical purposes (or something that did work previously).
For this, we're going to use the excellent OpenConnect to connect to server 1, and a bash script to continuously check the connection, and if disconnected, to reconnect.
Install OpenConnect
Let's first install OpenConnect. Server 2 was running Ubuntu 16.04. Let's do:
Creating a script to reconnect when disconnected
Please note that the below approach stores a vpn password in clear text in the script file, and as such is a potential security risk. The script should be locked down to stop users without authorisation from viewing its contents. Hence, this approach may only be appropriate for a server/system that is strictly managed or not accessed by other users.
Let's create a script that will:
- connect to your VPN;
- check every
x
seconds whether it is still connected - reconnect to the VPN if the connection is broken
In the below example we'll create a vpn.sh
script.
Copy the following into in your script:
Let's at least lock this file down to be only readable by root: Drivers broadcom.
Running script in background
Drivers brady. Once your happy with your script you can run said script as a background script:
Stopping background script
To stop/disconnect the VPN and script, use ps
to find the PID's of the VPN script and the openconnect
process by:
Axesstel modems driver. For example, on my system, running the above gives:
I would kill
PID's 10525 and 28445, like this:
Split tunnelling with vpn-slice
Split tunnelling allows you to explicitly define the ip address(es) for which traffic will be routed to on the vpn server side. This is useful for situations where you might want to route traffic to/from a specific ip, and want all other traffic to use normal (non-vpn) connections.
For this use case you can use vpn-slice. Once installed (see here for requirements and install guide), you can then modify your the script above as follows (see line 15 for the vpn-slice
script argument):
where <IP-ADDRESS>
is the ip address (or addresses, separated by a space) is what addresses you want tunnelled to the vpn.
NOTE: you should install vpn-slice with sudo
to ensure it is available on the standard path (otherwise you'll need to give the full path to the vpn-slice script).
References
Related articles
- Page:
Open client for Cisco AnyConnect VPN
This package provides a client for Cisco's 'AnyConnect' VPN, which usesHTTPS and DTLS protocols. AnyConnect is supported by the ASA5500 Series,by IOS 12.4(9)T or later on Cisco SR500, 870, 880, 1800, 2800, 3800,7200 Series and Cisco 7301 Routers, and probably others.
- Version 7.08
- Size 61.8 KB
- openSUSE Leap 15.2