Just a quick note wile performing recon on a customer I struggled with the dns-names.txt issue on kali, basically thehavester is looking for a file named dns-names.txt in the current directory when you are requesting to perform a dns brute force. The good news is the file exists in two spots on a kali box:
yourname@kali:~/Desktop$ locate dns-names.txt
this is used when you pass the “-c” option, so the easiest work around until this gets updated is to copy one of these files into your current directory. On my box both were the exact same file.