What must be done on a host to allow a user to log in to that host using an SSH key?
What must be done on a host to allow a user to log in to that host using an SSH key?
which command should be used When using an SSH tunnel to solve the problem?
A system monitoring service checks the availability of a database server on port 5432 of destination.example.com. The
problem with this is that the password will be sent in clear text. When using an SSH tunnel to solve the problem,
which command should be used?
What is the correct format for an ftpusers file entry?
What is the correct format for an ftpusers file entry?
What security precautions must be taken when creating a directory into which files can be uploaded anonymously
What security precautions must be taken when creating a directory into which files can be uploaded anonymously using
FTP?
Which of the following procmail rules should be used, so that all incoming emails are processed by vacation?
A user is on holiday for two weeks. Anyone sending an email to that account should receive an auto-response. Which of
the following procmail rules should be used, so that all incoming emails are processed by vacation?
Which file can be used to make sure that procmail is used to filter a user’s incoming email?
Which file can be used to make sure that procmail is used to filter a user’s incoming email?
How can the configuration be tested, using telnet, from outside the local network?
On a newly-installed mail server with the IP address 10.10.10.1, ONLY local networks should be able to send email.
How can the configuration be tested, using telnet, from outside the local network?
Which network service or protocol is used by sendmail for RBLs
Which network service or protocol is used by sendmail for RBLs (Realtime Blackhole Lists)?
Which of the following is correct?
The following is an excerpt from a procmail configuration file:
:0 c
* ! ^To: backup
! backup
Which of the following is correct?
What line must be added to /etc/mail/access to allow this?
The internal network (192.168.1.0-192.168.1.255) needs to be able to relay email through the site’s sendmail server.
What line must be added to /etc/mail/access to allow this?