Nov 25 08:53:57 ozo postfix/smtpd[2301]: connect from unknown[unknown]
Nov 25 08:53:57 ozo postfix/smtpd[2301]: lost connection after CONNECT from unknown[unknown]
Nov 25 08:53:57 ozo postfix/smtpd[2301]: disconnect from unknown[unknown]
Nov 25 09:10:27 ozo postfix/smtpd[3198]: connect from unknown[unknown]
Nov 25 09:10:27 ozo postfix/smtpd[3198]: lost connection after CONNECT from unknown[unknown]
Nov 25 09:10:27 ozo postfix/smtpd[3198]: disconnect from unknown[unknown]
Nov 25 09:54:02 ozo postfix/smtpd[5472]: connect from unknown[unknown]
Nov 25 09:54:02 ozo postfix/smtpd[5472]: lost connection after CONNECT from unknown[unknown]
Nov 25 09:54:02 ozo postfix/smtpd[5472]: disconnect from unknown[unknown]
Nov 25 10:02:51 ozo postfix/smtpd[5932]: connect from unknown[unknown]
Nov 25 10:02:51 ozo postfix/smtpd[5932]: lost connection after CONNECT from unknown[unknown]
Nov 25 10:02:51 ozo postfix/smtpd[5932]: disconnect from unknown[unknown]
Nov 25 10:09:26 ozo postfix/smtpd[6272]: connect from unknown[unknown]
Nov 25 10:09:26 ozo postfix/smtpd[6272]: lost connection after CONNECT from unknown[unknown]
Nov 25 10:09:26 ozo postfix/smtpd[6272]: disconnect from unknown[unknown]
Может кто-то знает, что это значит?
Пока что в голову приходит мысль о каком-то хитром способе сканирования портов.