OpenConnect SSL VPN
Free open-source SSL VPN client supporting multiple protocols including AnyConnect
What is OpenConnect?
OpenConnect serves as a versatile SSL VPN client supporting various protocols including Cisco AnyConnect. It’s designed to establish secure encrypted connections across different networks while maintaining high performance.
The client stands out for its compatibility with Cisco AnyConnect VPN servers while remaining completely open-source. Its modular design allows for extensive customization and integration with various authentication methods.
Key Features & Benefits
Protocol Compatibility
Compatible with multiple enterprise VPN protocols including AnyConnect and Pulse Secure
Multi-OS Support
Runs seamlessly across all major operating systems and architectures
Advanced Security
Provides military-grade encryption with support for two-factor authentication
Open Source Advantage
Benefits from continuous community improvements and security audits
Download OpenConnect
Available for all major platforms – completely free and open-source
Windows OS
Download for Windows openconnectopenconnect
Linux
Ubuntu/Debian .deb packages
Apple macOS
macOS 10.15 and later
Windows Setup Instructions
Download the Installer
Download the latest OpenConnect Windows installer from the official repository or trusted source. Look for the MSI or executable installer package for straightforward setup.
Execute Setup Process
Launch the downloaded installer with administrator privileges for proper system access. The installation process typically takes 2-3 minutes on modern Windows systems.
Configure VPN Connection
Launch OpenConnect GUI and add a new connection profile with your VPN server details. Specify authentication method, openconnect for windows certificates, and any custom connection parameters required.
Establish Connection
Initiate the connection process and authenticate with your credentials when prompted. Confirm successful connection through status indicators and test network accessibility.
Problem Resolution Guide
Connection Failures
Verify server address accuracy and network connectivity before attempting connection. Validate that your user account has proper VPN access permissions.
Certificate Errors
Import required root certificates and intermediate certificate authorities. Verify certificate chain completeness and proper installation in certificate store.
Important: Enterprise users should contact their network administrators for customized setup instructions. Corporate environments may have unique authentication requirements or security policies.