Linux set facl command

About setfacl The setfacl command sets file access control lists. Permissions Required To Modify ACLs The file owner and processes capable of CAP_FOWNER are granted the right to modify ACLs of a file. This is analogous to the permissions required for accessing the file mode. On current Linux systems, root is the only user with…

How Do I Whitelist Hosts/IP Addresses In Postfix?

How Do I Whitelist Hosts/IP Addresses In Postfix? If you are not recieving emails from a sender to Postfix, this could be due to issues with the senders SPF record being incomplete, or malformed. If you really need to get emails from the sender one way would be to whitelist the ip or host address…