Pulse Secure is not available for Linux but there are a few alternatives that runs on Linux with similar functionality. The best Linux alternative is Cisco AnyConnect. It's not free, so if you're looking for a free alternative, you could try Stonesoft MobileID. If that doesn't suit you, our users have ranked more than 10 alternatives to Pulse Secure and four of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Pulse Secure are IBM Endpoint Manager (Paid) and Aruba Central (Paid).
Stonesoft MobileID allows you to authenticate with the Stonesoft A2Cloud solution (SSL VPN and/or Authentication Server) using the Stonesoft Synchronized or Stonesoft Challenge one-time password strong authentication methods.
Aruba Central offers a simple, secure and cost-effective way to manage and monitor Aruba Instant APs and switches. It also has advanced capabilities like customizable guest Wi-Fi, Aruba Clarity and presence analytics for smarter decision making.