When adding or editing a System and Server Status monitor and a server is currently down while doing this you get a error that it couldn't connect to the server.
It really should not be checking any service stats until it has saved the monitoring type.
I was editing my "Alive System" monitoring and got this error.
Failed to save monitor : Failed to connect to www.ivan-susanin.com : Failed to connect to www.ivan-susanin.com:10000 : Connection timed out
Call Stack Trace
File Line Function
/usr/libexec/webmin/web-lib-funcs.pl 4246 status::error
/usr/libexec/webmin/web-lib-funcs.pl 4065 status::remote_rpc_call
/usr/libexec/webmin/status/save_mon.cgi 40 status::remote_foreign_check
/usr/libexec/webmin/status/save_mon.cgi 40 (eval)
(eval 83) 6 (eval)
/usr/libexec/webmin/miniserv.pl 2105 (eval)
/usr/libexec/webmin/miniserv.pl 733 miniserv::handle_request