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