Command line tool to check the validity and expiration dates of SSL certificates.
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README.md

certok

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Command line tool to check the validity and expiration dates of SSL certificates.

Installation

Binaries

For installation instructions from binaries please visit the Releases Page.

Via Go

$ go get github.com/genuinetools/certok

Usage

Pass a line deliminated file filled with hostnames to either stdin or the first argument of the command. For example:

$ certok ~/hostsfile
NAME                 SUBJECT            ISSUER                        ALGO           EXPIRES     SUNSET DATE
telize.j3ss.co:443   telize.j3ss.co     Let's Encrypt Authority X3    SHA256-RSA     77 days
r.j3ss.co:443        r.j3ss.co          Let's Encrypt Authority X3    SHA256-RSA     77 days
contained.af:443     contained.af       Let's Encrypt Authority X3    SHA256-RSA     77 days
$ certok -h
certok -  A tool to check the validity and expiration dates of SSL certificates.

Usage: certok <command>

Flags:

  -all     Show entire certificate chain, not just the first. (default: false)
  -d       enable debug logging (default: false)
  -days    Warn if the certificate will expire within this many days. (default: 0)
  -months  Warn if the certificate will expire within this many months. (default: 0)
  -years   Warn if the certificate will expire within this many years. (default: 0)

Commands:

  version  Show the version information.