January 2009 archive

Checking SSL certs

There are times when it’s useful to be able to check an SSL cert’s subject or expiration date. In addition, it’s useful to both check the cert file and query a service. This is useful for more than just web servers; SMTP, IMAP, and LDAP are other services which use SSL certificates. There are several ways to check certs, and what I cover in this post is by no means exhaustive. (more…)