wok view dnstop/description.txt @ rev 25027
updated openssh, openssh-pam and sftp-server (8.7p1 -> 9.0p1)
| author | Hans-G?nter Theisgen |
|---|---|
| date | Thu May 19 13:59:33 2022 +0100 (2022-05-19) |
| parents | |
| children |
line source
1 Dnstop is a libpcap application (like tcpdump) that displays
2 various tables of DNS traffic on your network.
3 Currently dnstop displays tables of:
5 * Source IP addresses
6 * Destination IP addresses
7 * Query types
8 * Response codes
9 * Opcodes
10 * Top level domains
11 * Second level domains
12 * Third level domains
14 Dnstop supports both IPv4 and IPv6 addresses.
16 To help find especially undesirable DNS queries, dnstop provides
17 a number of filters. The filters tell dnstop to display only the
18 following types of queries:
20 * For unknown or invalid TLDs
21 * A queries where the query name is already an IP address
22 * PTR queries for RFC1918 address space
23 * Responses with code REFUSED
25 Dnstop can either read packets from the live capture device,
26 or from a tcpdump savefile.