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jkeam/getcert.sh

Last active January 25, 2018 18:37
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Get SSL Cert
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getcert.sh
#!/bin/sh
#
# usage: getcert.sh remote.host.name [port]
# eg) getcert.sh api.mailgun.net
#
RHOST=$1
RPORT=${2:-443}
# see cert
echo -n | openssl s_client -connect ${RHOST}:${RPORT} | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p'
# see chain
echo | openssl s_client -showcerts -servername ${RHOST} -connect ${RHOST}:${RPORT} 2>/dev/null | openssl x509 -inform pem -noout -text
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