Security question about port 81

[nandelbosc]

How insecure is open port 81 (ISPConfig administration) to internet?

leaving aside the possibility of an attack by brute force, there is a known bug that can compromise the server? Other questions?

in short, to what extent it is recommended to have port 81 open?

thank's!

[edge]

I've had port 81 open for some years now on all my servers, and till now no problems.
Makes sure (as with any password) that you use a strong (long) password!

[nandelbosc]

[SOLVED]

ok, thank's edge!

another related question...

what users have access to login ISPConfig web interface? Only admin? all user market as administrators?

If only admin can login (because I tried to login with a user market as administrator and don't work), how can I grant access to other user/s to add, delete or modify mail accounts?

EDIT: I answer myself... Select a customer from a customer folder, click on data access tab and add a login and password... that's all! ;)

[lordspace]

I don't think 81 is insecure it's rather the application that is handling it.

[nandelbosc]

yes, I know that port 81 is not insecure in itself, the question relates to services offered by the ISPConfig on port 81