connchk

About

connchk is command-line network checking tool written in Rust. It aims to provide a cross platform utility that can verify if your host can reach targets defined in a TOML document. These hosts are checked in the following ways:

For plain TCP hosts, a TcpStream is opened or the relevant error is returned
For HTTP(S) hosts either
- A basic check declares success if a status code of 200 is returned
- A custom check declares success and failure with user-defined status codes. This test makes a form-encoded POST request.
- In either case errors are returned to the user

The application expects exactly one argument which is the TOML document defining target hosts.

Install

To get connchk run cargo install connchk on a system with Cargo installed.

For the time being this is the only way. At a later date packages for various systems may be included in the repository.

Example TOML Config

```toml

example.toml

[[tcp]] desc = "GitLab SSH" addr = "gitlab.com:22"

[[tcp]] desc = "Freenode IRC" addr = "irc.freenode.net:6667"

[[http]] desc = "httpbin IP endpoint" addr = "https://httpbin.org/ip"

Posts as a form and reports success if the status code returned is 400

which it will be for this bad request to this particular endpoint

[[http]] desc = "httpbin POST endpoint (form)" addr = "https://httpbin.org/status/undefined" custom = { params = { someKey = "SpecialValue" }, ok = 400, bad = 403 }

```

Example Usage

$ ./connchk ~/Projects/connchk/example.toml Successfully connected to GitLab SSH Successfully connected to Freenode IRC Successfully connected to httpbin IP endpoint Successfully connected to httpbin POST endpoint (form)

TODO

Add support for testing POST requests with JSON payloads

License

This project uses GPL-3.0+.