Dns information collection
1 、 dnsenum
-f dns.txt specifies brute force cracking files, which can be replaced with dns-big.txt
-dnsserver specifies the dns server (here you can query the official DNS server of cisco.com, such as ns2.cisco.com, which can be obtained through dnsenum cisco.com, or you can query the DNS server directly with 8.8.8.8)
-o cisco.txt output to file
Complete command: dnsenum-f dns.txt-dnsserver 8.8.8.8 cisco.com-o cisco.txt
DNS area transfer:
UDP 53 TCP 53
2 、 dnsmap
-w dns.txt specifies the cracking file
-c cisco.csv specifies the output file, .csv can be opened by excel
