If you want to hide email source, you can easily remove Received field in mail header using header_checks.
Read More »Removing Received field in mail header with Postfix
Today I need to migrate cacti from old machine to blade. I have hit the problem This RRD was created on other architecture. Old system was 64bit and new one was existing 32bit system. RRD’s must be converted.
Read More »Migrating RRD between 32 and 64 bit systems