No permission

[dom-4k]

~/dns> ./dnschef.py
_ _ __ | | version 0.4 | | / |
_| | __ ___ | | | | / ` | ' / |/ | ' \ / _ \ |
| (| | | | _ \ (| | | | __/ | _,|| ||/_|| ||___||
iphelix@thesprawl.org

(00:29:03) [] DNSChef started on interface: 127.0.0.1
(00:29:03) [] Using the following nameservers: 8.8.8.8
(00:29:03) [*] No parameters were specified. Running in full proxy mode
(00:29:03) [!] Failed to start the server: [Errno 13] Permission denied

[Bilou4]

By default, the server listens on a priviledged port (port 53). You need to start it using sudo or by specifying another port (--port)