How can I tell if an installed cert is wildcard or not

Question

I installed a cert for my server a while ago using certbot, and cant remember if I setup as a wildcard or not, What command can I run to see if it is or not?

An apache webserver I am running. – bart2puck May 18 '22 at 15:45 — bart2puck, May 18 '22 at 15:45

score 1 · Accepted Answer · answered May 18 '22 at 16:08

1

If you run (replacing www.example.com with your own hostname)

SERVERNAME=www.example.com; echo | openssl s_client -showcerts -connect $SERVERNAME:443 -servername $SERVERNAME 2>/dev/null| grep subject | grep -o "CN=.*"

then you'll either see CN=www.example.org (no wildcard) or CN=*.example.org (a wildcard cert)

answered May 18 '22 at 16:08

jaygooby

314
1
2
13

IF you are feelign saucy, please see my next question at: https://serverfault.com/questions/1101249/certbot-wildcard-cert-not-a-wildcard – bart2puck May 18 '22 at 16:51
Yup! Just did :) – jaygooby May 18 '22 at 17:27
you are my guardian angel today! thanks a ton for both – bart2puck May 18 '22 at 17:29

How can I tell if an installed cert is wildcard or not

1 Answers1

Linked