Good morning all!
My Postfix is logging a lot fo these:
-------------- BEGIN LOG ------------
Apr 20 10:50:35 dante postfix/smtpd[29806]: warning: hostname totaldrama.eu
does not resolve to address 94.102.53.179: Name or service not known
Apr 20 10:50:35 dante postfix/smtpd[29806]: connect from
unknown[94.102.53.179]
Apr 20 10:50:37 dante postfix/smtpd[29806]: warning: unknown[94.102.53.179]:
SASL LOGIN authentication failed: UGFzc3dvcmQ6
Apr 20 10:50:37 dante postfix/smtpd[29806]: disconnect from
unknown[94.102.53.179] ehlo=1 auth=0/1 quit=1 commands=2/3
-------------- ENG LOG ------------
Can I "block/reject" all this attempts of connections?
I tried with settings in main.cf (in particular client and helo
restrictions) as below, but with no results:
Thank you a lot for your help.
-FRANCESCO
------------- BEGIN MAIN.CF ----------------
myhostname = MY.HOST.IT
mydomain = HOST.IT
myorigin = $mydomain
inet_interfaces = vvv.vvv.vvv.vvv, localhost
inet_protocols = ipv4
mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain,
*.$mydomain
unknown_local_recipient_reject_code = 550
mynetworks = 127.0.0.0/8, vvv.vvv.vvv.yyy/28
strict_rfc821_envelopes = yes
disable_vrfy_command = yes
smtpd_helo_required = yes
smtpd_client_restrictions =
permit_mynetworks,
reject
smtpd_helo_restrictions =
permit_mynetworks,
reject_non_fqdn_hostname,
reject_unknown_sender_domain,
reject_invalid_hostname,
reject
smtpd_sender_restrictions =
smtpd_end_of_data_restrictions =
smtp_sender_dependent_authentication = yes
smtpd_recipient_restrictions =
permit_mynetworks,
permit_sasl_authenticated,
reject_unauth_destination,
reject_invalid_hostname,
reject_unauth_pipelining,
reject_non_fqdn_sender,
reject_unknown_sender_domain,
reject_non_fqdn_recipient,
reject_unknown_recipient_domain,
permit
smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain = $myhostname
broken_sasl_auth_clients = yes
smtpd_sasl_type = dovecot
smtpd_sasl_path = /var/spool/postfix/private/auth
smtpd_sasl_authenticated_header = no
------------- END MAIN.CF ----------------
---
Questa e-mail รจ stata controllata per individuare virus con Avast antivirus.
http://www.avast.com
