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26 lines
907 B
Text
26 lines
907 B
Text
dnstop is a libpcap application (ala tcpdump) that displays various tables of DNS traffic on your network. Currently dnstop displays tables of:
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* Source IP addresses
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* Destination IP addresses
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* Query types
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* Response codes
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* Opcodes
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* Top level domains
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* Second level domains
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* Third level domains
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* etc...
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dnstop supports both IPv4 and IPv6 addresses.
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To help find especially undesirable DNS queries, dnstop provides a number of filters. The filters tell dnstop to display only the following types of queries:
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* For unknown/invalid TLDs
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* A queries where the query name is already an IP address
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* PTR queries for RFC1918 address space
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dnstop can either read packets from the live capture device, or from a tcpdump savefile.
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--
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Unless modified, this script compiles with PPP frame support.
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Homepage: http://dns.measurement-factory.com/tools/dnstop/
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