Open Source Network Security Software

Network Security tools manage secure access to servers, databases, and internal web applications. These tools encrypt traffic through tunnels and bastion hosts to prevent unauthorized access to remote endpoints. This type of software is for system administrators and developers who need to manage SSH, RDP, and Kubernetes clusters. Self-hosting these apps ensures that authentication logs and connection keys remain on private hardware. This approach prevents external providers from accessing the internal network topology or monitoring the traffic flowing between remote terminals.

This page lists 10 open source tools in the Network Security category. The most popular are JumpServer, Teleport and OpenVPN. Most use the Apache-2.0 or GPL-3.0 license, and 7 offer an official Docker image.

JumpServer

SSH Access Management

Provides secure, browser based privileged access management for SSH, RDP, Kubernetes, databases and remote application endpoints.

31k StarsWeb App / Server

Teleport

SSH Access Management

Provides connectivity, authentication, and access controls for servers, Kubernetes clusters, databases, and internal web applications.

21k StarsWeb App / Server

OpenVPN

VPN & Secure Access

Creates secure point to point or site to site connections using a tunneling daemon for encrypted network traffic.

14k StarsWeb App / Server

Termix

Remote Desktop

Self-hosted server management platform for SSH terminal access, remote desktop control, and infrastructure monitoring.

14k StarsWeb App / Server

iodine

VPN & Secure Tunnels

Tunnel IPv4 data through a DNS server to bypass firewalls that allow DNS queries.

7.9k StarsWeb App / Server

Warpgate

SSH Access Management

A transparent bastion host for managing secure access to SSH, HTTPS, Kubernetes, MySQL, PostgreSQL, RDP and VNC.

7.4k StarsWeb App / Server

Mullvad VPN

VPN & Secure Access

A privacy preserving VPN client for desktop and mobile that secures internet traffic using WireGuard.

7.4k StarsDesktop App

frpc-desktop

VPN & Secure Tunnels

Provides a visual desktop interface for configuring and managing FRP clients to achieve intranet penetration.

6.8k StarsDesktop App

sish

VPN & Secure Tunnels

Create HTTP, HTTPS, WebSocket, and TCP tunnels to localhost using standard SSH without custom clients.

4.7k StarsWeb App / Server

ShellHub

SSH Access Management

Centralized SSH gateway for remote access and management of Linux servers, IoT devices, and containers.

2k StarsWeb App / Server
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