Not only can PAWS check for open ports, it can also examine numerous services more thoroughly.
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nats (port 4222)
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mysql (port 3306)
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mariadb (port 3306)
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mssql (port 1433)
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dhs tcp & udp (port 53)
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ssh (port 22)
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smtp (port 25)
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planned: imap-tls (port 993)
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planned: smtp-tls (port 465)
Another way to test is by using "reply://" with an query parameter:
- paws reply://imap.ionos.de:143?"* OK ["