Running a service will not bind to ports # 443 and # 80 despite application of sudo setcap 'cap_net_bind_service=+ep' /path/to/binary

Question

The service starts and attemps to listen to port # 443, I get errno=99 which is EADDRNOTAVAIL and std::strerror(errno) reports "Cannot assign requested address".

If I run sudo getcap /path/to/binary I get this: /usr/local/binary_file = cap_net_bind_service+ep

This seems to mean that it has the capability, yet I can not bind to the port, anyone can help me with this issue?

score 1 · Answer 1 · answered Sep 14 '20 at 16:30

1

Turns out I specified the wrong ipaddress in my bind, that came from an environment variable passed at compilation time. Setcap works great.

answered Sep 14 '20 at 16:30

Bamaco

131

Running a service will not bind to ports # 443 and # 80 despite application of sudo setcap 'cap_net_bind_service=+ep' /path/to/binary

1 Answers1