If this nmap command tries to generate non-TCP traffic, then that's your problem. Tor only supports TCP traffic.

Also, I hope you have a good reason for portscanning over Tor. People irresponsibly doing this contribute to Tor's bad reputation and ruin it for everyone. People rely on Tor for free access to uncensored information, and doing big port scanning the Internet or irresponsibly scraping webpages causes exit operators trouble.

Rent a cheap VPS or something. Bonus: it will be way faster, support all transport protocols, AND you don't have to deal with proxying over Tor.

Matt

On 1/14/21 22:19, Peng Yu wrote:

Hi,

I see the following error. Is it a bug in torify/torsocks? Thanks.

$ torify nmap -p7 google.com ... NSOCK ERROR [88.9380s] nsock_make_socket(): Socket trouble: Operation not permitted Assertion failed: (nse->iod->sd >= 0), function nsock_pool_add_event, file nsock_core.c, line 1273. Abort trap: 6