请教,postfix是不是被攻击

starndawn

日志文件里面反复出现:
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: connection established
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: master_notify: status 0
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: name_mask: resource
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: name_mask: software
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: name_mask: noanonymous
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: warning: 10.0.0.20: hostname bogon
verification failed: Name or service not known
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: connect from unknown[10.0.0.20]
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: unknown: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: 10.0.0.20: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: unknown: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: 10.0.0.20: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostname: unknown ~? 127.0.0.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostaddr: 10.0.0.20 ~? 127.0.0.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostname: unknown ~? 10.20.30.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostaddr: 10.0.0.20 ~? 10.20.30.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostname: unknown ~? 10.110.10.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostaddr: 10.0.0.20 ~? 10.110.10.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: unknown: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: 10.0.0.20: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: send attr request = connect
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: send attr ident = smtp:10.0.0.20
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: private/anvil: wanted attribute: status
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute name: status
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute value: 0
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: private/anvil: wanted attribute: count
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute name: count
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute value: 1
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: private/anvil: wanted attribute: rate
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute name: rate
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute value: 1
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: private/anvil: wanted attribute: (list terminator)
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute name: (end)
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: > unknown[10.0.0.20]: 220 mail.test.com ESMTP Postfix
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: smtp_get: EOF
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostname: unknown ~? 127.0.0.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostaddr: 10.0.0.20 ~? 127.0.0.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostname: unknown ~? 10.20.30.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostaddr: 10.0.0.20 ~? 10.20.30.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostname: unknown ~? 10.110.10.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_hostaddr: 10.0.0.20 ~? 10.110.10.0/24
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: unknown: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: match_list_match: 10.0.0.20: no match
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: send attr request = disconnect
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: send attr ident = smtp:10.0.0.20
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: private/anvil: wanted attribute: status
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute name: status
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute value: 0
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: private/anvil: wanted attribute: (list terminator)
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: input attribute name: (end)
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: lost connection after CONNECT from unknown[10.0.0.20]
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: disconnect from unknown[10.0.0.20]
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: master_notify: status 1
Jun 13 16:07:46 crm-mail postfix/smtpd[6372]: connection closed