BoltConn

A go-to solution for transparent application proxy & firewall with tunneling and MitM, designed with privacy and security in mind. All efforts made to make you fully control your network. Experimental webui & desktop client is available in XOR-op/BoltBoard.

Features

• Fine-grained Traffic Control: Allow VPN-style global control, or dedicated http/socks5 per-inbound control.
• Rule-based Blocking: Block ad/tracking traffic on a per-process/per-website/flexible way.
• Rule-based Tunneling: Flexible way to tunnel traffic through http/socks5/wireguard/etc outbounds. Able to use compatible rules from similar community.
• Audit Traffic: Audit traffic history by accessing API or dumping into SQLite.
• Modify HTTPS Data: Manipulate requests and responses inside HTTPS traffic to redirect, block or modify them. Support injecting Javascript now.

For the full features, see features.md.

Getting Started

Installation

Pre-built binaries

• Download pre-built binaries from release and add the path of the binary to $PATH.

Install latest git version with cargo

cargo install --locked --git https://github.com/XOR-op/BoltConn

Configuration

Before running BoltConn, you should run these two commands first:

1. Create necessary configuration and runtime files. The default configuration path is $HOME/.config/boltconn, and the default runtime path is $HOME/.local/share/boltconn:

boltconn init

2. Generate root certificates with proper permissions for MitM:

sudo -E boltconn cert

Run BoltConn

sudo -E boltconn start

CLI Tools for Management

boltconn [conn/proxy/rule/tun/reload/...]

See boltconn --help for more help.

Documentations

Learn more about BoltConn's architecture, RESTful API, and how it compares to other related projects:

• design.md explains BoltConn's architecture.
• restful.md covers BoltConn's RESTful API.
• features.md lists full features of BoltConn.

Future Plan

• Full IPv6 support
• Windows support with Wintun driver
• Better integration with external programs (e.g. OpenVPN or ssh)

License

This software is released under the GPL-3.0 license.