>The attached patch should be dumping the same kind of information. Nslookup does not produce any output in curses or in logfile (-D logfile.txt). I tried it using the version installed on the root system (Busybox 1.0):
root@qemu:~# nslookup BusyBox v1.00 (2010.04.14-20:01+0000) multi-call binary Usage: nslookup [HOST] [SERVER] root@qemu:~# nslookup www.google.com *** Unknown host nslookup: www.google.com: Unknown host as well as the newer version installed in initrd image which is version 1.25.1: root@qemu:~# /initrd/bin/nslookup BusyBox v1.25.1 (2017-05-01 19:00:24 EDT) multi-call binary. Usage: nslookup [HOST] [SERVER] Query the nameserver for the IP address of the given HOST optionally using a specified DNS server root@qemu:~# /initrd/bin/nslookup www.google.com Server: 10.0.2.3 Address 1: 10.0.2.3 nslookup: can't resolve 'www.google.com' I know the patch was applied because when I ping 10.0.2.2 I get the following: root@qemu:~# ping 10.0.2.2 PING 10.0.2.2 (10.0.2.2): 56 data bytes 64 bytes from 10.0.2.2: icmp_seq=0 ttl=255 time=0.5 ms 64 bytes from 10.0.2.2: icmp_seq=1 ttl=255 time=0.1 ms 64 bytes from 10.0.2.2: icmp_seq=2 ttl=255 time=0.1 ms 64 bytes from 10.0.2.2: icmp_seq=3 ttl=255 time=0.1 ms 64 bytes from 10.0.2.2: icmp_seq=4 ttl=255 time=0.2 ms --- 10.0.2.2 ping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss round-trip min/avg/max = 0.1/0.2/0.5 ms [mfonnemann@localhost qemu]$ cat logfile ip input a00020f -> a000202 1 ip input a00020f -> a000202 1 ip input a00020f -> a000202 1 ip input a00020f -> a000202 1 ip input a00020f -> a000202 1 mark.