In the main Postfix configuration file, how are service definitions continued on the next line?
After running ssh-keygen and accepting the default values, which of the following files are changed or created? (Choose two.)
Which netfilter table contains built-in chains called INPUT, OUTPUT and FORWARD?
Which command is used to administer IPv6 netfilter rules?
In order to prevent all anonymous FTP users from listing uploaded file names, what security precaution can be taken when creating an upload directory?