服务检测：3 位 ASCII 代码响应
info Nessus 插件 ID 14773
语言：
- acap_plaintext_authentication.nasl
- acap_starttls.nasl
- arcserve_lgserver_admin_detect.nasl
- cassandra_nntp_dos.nasl
- check_smtp_helo.nasl
- communigatepro_51c2.nasl
- doublecheck_std_services.nasl
- fake_3digits.nasl
- find_service2.nasl
- ftpd_any_cmd.nasl
- ftpd_bad_sequence.nasl
- ftpd_no_cmd.nasl
- ftpserver_detect_type_nd_version.nasl
- hylafax_auth_bypass.nasl
- hylafax_detect.nbin
- mailenable_pop_apop_overflow.nasl
- mailenable_pop_auth_flaws.nasl
- nntp_info.nasl
- nntp_starttls.nasl
- nntp_too_long_headers.nasl
- nntp_too_long_password.nasl
- nntpserver_detect.nasl
- poppassd_too_long_user.nasl
- poppasswd_unauthorized.nasl
- popserver_detect.nasl