Failed to open log file for writing,

[iphelix]

Failed to open log file for writing,

[7c]

same here, but in my case i throws this exception by first start. version 0.3

[0x4d4c]

To sort this out: did you check whether there was a different process running on the IP/port combination you tried to start DNSChef on? IIRC the "failed to open log file" error pops up in this case as well.

[kolet]

actualy i did, i closed all proccess ,checked that no one of the port were taken.
the only thing to make it work is to reset the whole server..

[emirotin]

This is a gimmick, bad error reporting. What's actually happening is IOError code 13 (permission denied) is thrown on an attempt to bind to the default port 53 which requires the root permissions

[dpicollege]

i have same error even i start with root? any solution for that?

[pkosmala]

Same problem here. Nothing's running on port 53, but I get "Failed to open log file for writing".

[GrrrDog]

In my case, it was systemd-resolved on port 53.
I stopped it and dnschef started working as usual.

https://askubuntu.com/questions/907246/how-to-disable-systemd-resolved-in-ubuntu