{"description": "Edit <tt>/etc/postfix/main.cf</tt>. Edit the following lines to\nconfigure the amount of system resources Postfix can consume:\n<pre>default_process_limit = 100\nsmtpd_client_connection_count_limit = 10\nsmtpd_client_connection_rate_limit = 30\nqueue_minfree = 20971520\nheader_size_limit = 51200\nmessage_size_limit = 10485760\nsmtpd_recipient_limit = 100</pre>\nThe values here are examples.", "warnings": [{"general": "Note: The values given here are examples, and may\nneed to be modified for any particular site. By default, the Postfix anvil\nprocess gathers mail receipt statistics. To get information about about what\nconnection rates are typical at your site, look in <tt>/var/log/maillog</tt>\nfor lines with the daemon name postfix/anvil."}], "requires": [], "conflicts": [], "values": {}, "groups": {}, "rules": {}, "platform": "", "platforms": [], "inherited_platforms": ["system_with_kernel", "package[postfix]"], "cpe_platform_names": [], "title": "Configure Postfix Resource Usage to Limit Denial of Service Attacks", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/services/mail/postfix_harden_os/postfix_server_cfg/postfix_server_dos/group.yml"}