ptrcalc/README.md
2024-08-06 17:38:53 +02:00

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# ptrcalc
Displays reverse zone for a given IPv6 or IPv4 Address.
```bash
~$ ptrcalc 42.43.123.43/29
IP Address: 42.43.123.43/29
Reverse pointer: 43.123.43.42.in-addr.arpa
Zone: 123.43.42.in-addr.arpa
Host: 43
RFC2317:
Reverse pointer: 43.40/29.123.43.42.in-addr.arpa
Zone: 123.43.42.in-addr.arpa
Host: 43
```
Supports RFC2317 and JSON output.