Created
September 1, 2024 07:33
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SSL certificate expiration check script
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| #!/bin/bash | |
| # ./certcheck.sh [domain name] | |
| DOMAIN=$1 | |
| notAfter=$(echo -n Q | openssl s_client -connect ${DOMAIN}:443 -servername ${DOMAIN} 2>/dev/null | openssl x509 -noout -enddate | grep notAfter | sed 's/notAfter=//') | |
| notAfterEpic=$(date -d "${notAfter}" +\%s) | |
| twoWeeksLaterEpic=$(date -d 'now + 2 weeks' +\%s) | |
| nowEpic=$(date +\%s) | |
| echo "now = "$(date) | |
| echo "expiry = "$(date -d @${notAfterEpic}) | |
| if [ $notAfterEpic -le $nowEpic ]; then | |
| echo "The SSL cert for ${DOMAIN} has expired." | |
| exit 1 | |
| elif [ $notAfterEpic -le $twoWeeksLaterEpic ]; then | |
| echo "The SSL cert for ${DOMAIN} will expire in two weeks." | |
| exit 1 | |
| else | |
| exit 0 | |
| fi |
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