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magickatt/check_ssl_validity.sh

Created March 30, 2020 15:08
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Check SSL certificate validity
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check_ssl_validity.sh
HOSTNAME=example.com && \
echo | openssl s_client -showcerts \
-servername $HOSTNAME \ # Required for SNI
-connect $HOSTNAME:443 2>/dev/null | \
openssl x509 -inform pem -noout -text | \
grep Validity -A 2
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