Go to file
Jacob Kiers 6300c43495
All checks were successful
continuous-integration/drone/pr Build is passing
continuous-integration/drone/push Build is passing
continuous-integration/drone/tag Build is passing
Upgrade toolchain to rust 1.79.0
Signed-off-by: Jacob Kiers <code@kiers.eu>
2024-06-22 15:44:13 +02:00
.cargo Add build instructions 2023-08-23 19:29:29 +02:00
src Add self update functionality 2024-06-22 15:43:58 +02:00
tests Remove kcp support 2024-02-23 22:49:43 +01:00
.drone.jsonnet Upgrade toolchain to rust 1.79.0 2024-06-22 15:44:13 +02:00
.gitignore Update .gitignore 2024-06-22 11:49:12 +02:00
Cargo.lock Add self update functionality 2024-06-22 15:43:58 +02:00
Cargo.toml Add self update functionality 2024-06-22 15:43:58 +02:00
CHANGELOG.md Add change log 2024-06-22 15:43:58 +02:00
config.yaml.example Rename to l4p, update references and README.md 2024-02-23 22:03:25 +01:00
example-config.yaml Remove kcp support 2024-02-23 22:49:43 +01:00
l4p.service Rename to l4p, update references and README.md 2024-02-23 22:03:25 +01:00
LICENSE First commit 2021-10-21 16:43:59 +08:00
README.md Correct attribution to fourth 2024-06-19 21:59:19 +02:00

l4p

Hey, now we are on level 4!

CI

l4p is a layer 4 proxy implemented by Rust to listen on specific ports and transfer TCP data to remote addresses (only TCP) according to the configuration.

Features

  • Listen on specific port and proxy to local or remote port
  • SNI-based rule without terminating TLS connection
  • DNS-based backend with periodic resolution

Installation

To gain best performance on your computer's architecture, please consider build the source code. First, you may need Rust tool chain.

$ cd l4p
$ cargo build --release

Binary file will be generated at target/release/l4p, or you can use cargo install --path . to install.

Or you can use Cargo to install l4p:

$ cargo install l4p

Or you can download binary file form the Release page.

Configuration

l4p will read yaml format configuration file from /etc/l4p/l4p.yaml, and you can set custom path to environment variable L4P_CONFIG, here is an minimal viable example:

version: 1
log: info

servers:
  proxy_server:
    listen:
      - "127.0.0.1:8081"
    default: remote

upstream:
  remote: "tcp://www.remote.example.com:8082" # proxy to remote address

There are two upstreams built in:

  • Ban, which terminates the connection immediately
  • Echo, which reflects back with the input

For detailed configuration, check this example.

Thanks

  • fourth, of which this is a heavily modified fork.

License

l4p is available under terms of Apache-2.0.