General Instructions :: Let’s Encrypt client and ACME library written in Go.
Author: Lego Team
Description: Read this first to clarify some assumptions made by the following guides.
Date: 2019-03-03T16:39:46+01:00

# General Instructions

These examples assume you have lego installed. You can get a pre-built binary from the releases page.

The web server examples require that the `lego` binary has permission to bind to ports 80 and 443. If your environment does not allow you to bind to these ports, please read Running without root privileges and Port Usage.

Unless otherwise instructed with the `--path` command line flag, lego will look for a directory named `.lego` in the current working directory. If you run `cd /dir/a && lego ... run`, lego will create a directory `/dir/a/.lego` where it will save account registration and certificate files into. If you later try to renew a certificate with `cd /dir/b && lego ... renew`, lego will likely produce an error.