proftpd decrease login delay

參考網址： Proftpd FAQ

原文
13. Slow logins

This is probably caused by a firewall or DNS timeout. By default ProFTPD will try to do both DNS and ident lookups against the incoming connection. If these are blocked or excessively delayed a slower than normal login will result. To turn off DNS and ident use:

UseReverseDNS off
IdentLookups off
          

IdentLookups and tcpwrappers ***