README.md

certok

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

Installation

Binaries

• darwin 386 / amd64
• freebsd 386 / amd64
• linux 386 / amd64 / arm / arm64
• solaris amd64
• windows 386 / amd64

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 - v0.4.0
  -all
        Show entire certificate chain, not just the first.
  -d    run in debug mode
  -days int
        Warn if the certificate will expire within this many days.
  -months int
        Warn if the certificate will expire within this many months.
  -v    print version and exit (shorthand)
  -version
        print version and exit
  -years int
        Warn if the certificate will expire within this many years.