korc/pr-dnsdDemonio DNS recursivo pasivo que registra todas las consultas y respuestas DNS, proporcionando visibilidad de red, enriquecimiento de registros EDR/IR y recolección pasiva de datos DNS para inteligencia de amenazas.
Demonio DNS pasivo-recursivo.
go get github.com/korc/PR-DNSd
sudo setcap cap_net_bind_service,cap_sys_chroot=ep go/bin/PR-DNSd
go/bin/PR-DNSd -upstream 9.9.9.9:53 -listen 127.0.0.1:53
echo nameserver 127.0.0.1 | sudo tee /etc/resolv.conf
dig google.com
dig -x $(dig +short google.com)
Si no puedes usar setcap, debes usar las opciones -chroot "" y -listen :<high_port>, o ejecutar como root.
netstat/tcpview/lsof, etc.Después del setcap apropiado, ejecuta:
PR-DNSd -tlslisten :853 -cert YOUR_SERVER_CRT_KEY_PEM -upstream 1.1.1.1:53 -store pr-dnsd
-cert string
TCP-TLS listener certificate (required for tls listener)
-chroot string
chroot to directory after start (default "/var/tmp")
-count int
Count of replies allowed before debounce delay is applied (default 100)
-ctmout string
Client timeout for upstream queries
-debounce string
Required time duration between UDP replies to single IP to prevent DoS (default "200ms")
-key string
TCP-TLS certificate key (default same as -cert value)
-listen string
listen address (default ":53")
-silent
Don't report normal data
-store string
Store PTR data to specified file
-tlslisten string
TCP-TLS listener address (default ":853")
-upstream string
upstream DNS server (tcp-tls:// prefix for DoT) (default "1.1.1.1:53")
(with tls and chroot, ensure ca-certificates and resolv.conf in chroot are properly set up)