Disable dns lookups for mysql

In a small environment VPS or VDS, there’s very little reason to rely on DNS resolution inside MySQL. You can disable it by adding ‘skip-name-resolve’ to your my.cnf (section mysqld) or by using the ‘–skip-name-resolve’ command line argument. Remember: If you disable DNS lookups, you will need to set permissions using IP addresses rather...

SASL authentication and Postfix

Next options require attention: smtpd_sasl_auth_enable = yes smtpd_sasl_authenticated_header = no smtpd_sasl_exceptions_networks = smtpd_sasl_local_domain = smtpd_sasl_path = smtpd_sasl_security_options = noanonymous, noplaintext smtpd_sasl_tls_security_options = noanonymous, noplaintext smtpd_sasl_type = cyrus /etc/postfix/main.cf: smtpd_sasl_type = dovecot | cyrus /etc/postfix/main.cf: smtpd_sasl_path = private/auth This example uses a pathname relative to the Postfix queue directory, so that it will work whether...

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