OpenSnitch
OpenSnitch is an open source application firewall for GNU/Linux systems. It monitors and controls network connections to protect against unwanted access and data leakage. It works by prompting the user to allow or deny connections.
network
firewall
privacy
security
access-control
OpenSnitch: Open Source Application Firewall
Monitor and control network connections to protect against unwanted access and data leakage, with a user-friendly interface
What is OpenSnitch?
OpenSnitch is an open source application firewall for GNU/Linux systems. It allows users to monitor and control network connections to protect against unwanted access and data leakage.
OpenSnitch works by intercepting system calls and prompting the user to allow or deny connections initiated by applications on their device. When an app attempts to establish a new connection, OpenSnitch shows a pop-up notification with details about the attempted connection, including the originating app, destination IP address and port. Users can then choose whether to allow or deny that specific connection.
Key features of OpenSnitch include:
- Monitors inbound and outbound network connections in real-time
- Provides interactive pop-up prompts for users to allow or deny connections
- Shows details about each connection attempt including process name, IP addresses/ports etc.
- Maintains network connection logs for auditing and troubleshooting
- Open source software, available for GNU/Linux operating systems
OpenSnitch aims to give users greater awareness, visibility and control over app network traffic on their devices. Its interactive prompts allow users to easily block unwanted connections and stop data leakage caused by malicious or improperly configured apps.
OpenSnitch Features
Features
- Monitors outgoing network connections
- Prompts user to allow or deny connections
- Whitelist rules can automate decisions
- Connection logs provide visibility
- Open source and extensible
Pricing
- Open Source
Pros
Increased visibility into network activity
Can prevent unwanted access or data leakage
More control over app network access
Lightweight and system resource friendly
Cons
Requires manual user input for new connections
Steeper learning curve than traditional firewalls
Not enabled by default on most systems
Requires some technical expertise to configure
Official Links
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