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Quick inventory of all certificates expiring in the next XX days

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A simple command line using Certutil to dump out all issued certificates on the server about to expire in the next 60 days:

certutil -view -restrict "NotAfter>now,NotAfter<=now+60,Disposition=20" -out RequestID,RequesterName,Request.CommonName,
CommonName,UPN,NotBefore,NotAfter,SerialNumber,CertificateTemplate,
CertificateHash

 

...creative uses: Schedule a monthly task in the Windows Task Scheduler with two Components; the first to generate the list and pipe it to a file and the second to mail the text file generated by the 1st part to a DL with your admins in it.

Bonus Points: Do it in Powershell using Regular Expressions, string replacement and Format-Table to get a sleek ouput :)

Comments

  • Anonymous
    March 20, 2013
    Thanks, I have an immediate use for that. For extra bonus points double check when your web server SSL certificate is due to expire:  curl -vIs https://www.example.com 2>&1 >/dev/null |  grep "expire date"