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check_cas.sh
do_check_ca.sh
readme.md

readme.md

DNS CA Tools

These tools will help you to determine the issuer of the certificate of your domain(s)

do_check_ca.sh [domain] [port]

To check a single domain Port is optional; defaults to 443

check_cas.sh [input file]

Wrapper script that enables you to check multiple domains in batch. All domains should be put in a separate file (separated by newlines) that can then be passed as an argument to this script

Usage

Suppress all output except successful results

./do_check_ca.sh www.domain.com | grep ","
./check_cas.sh list.txt | grep ","

Suppress all output except successful results and hide domain name

./do_check_ca.sh www.domain.com | grep "," | awk -F ',' '{print $2}'
./check_cas.sh list.txt | grep "," | awk -F ',' '{print $2}'
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