check_ssl_cert supports validating DANE records with openssl >= 1.1.0
Nagios/Icinga plugin for checking DANE/TLSA records.
It compares the DANE/TLSA record against the TLS certificate provided by a service.
-h, --help show this help message and exit
--host HOST, -H HOST Hostname to check.
--port PORT, -p PORT TCP port to check.
--connect-host CONNECT_HOST, --ip CONNECT_HOST, -I CONNECT_HOST
Connect to this host instead of --host.
--connect-port CONNECT_PORT
Connect to this port instead of --port.
--starttls {smtp,imap,xmpp,quassel}
Send the protocol-specific messages to enable TLS.
--check-pkix Additionally perform traditional checks on the
certificate (ca trust path, hostname, expiry).
--min-days-valid MIN_DAYS_VALID
Minimum number of days a certificate has to be valid.
Format: INTEGER[,INTEGER]. 1st is #days for warning,
2nd is critical.
--no-dnssec Continue even when DNS replies aren't DNSSEC
authenticated.
--nameserver NAMESERVER
Use a custom nameserver.
--timeout TIMEOUT Network timeout in sec. Default: 10
--version show program's version number and exit
- Certificate Usage: "Service certificate constraint" (1) and "Domain-issued certificate" (3) is supported
- Selector: "Full certificate" (0) and SubjectPublicKeyInfo (1)
- Matching Type: "Exact match" (0), SHA-256 hash (1) and SHA-512 hash (2)
- Python >= 3.4
- dnspython
- openssl binary
- DNSSEC capable resolver (or use --no-dnssec but be aware of the security implications)
- check_dane -H mx.example.com -p 25 --starttls smtp
- check_dane -H example.com -p 443 --check-pkix
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