Which BIND option should be used to limit the IP addresses from which slave name servers may connect? A. allow-zone-transfer B. allow-transfer C. allow-secondary D. allow-slaves E. allow-querie...

Which of the following lines in the sshd configuration file should, if present, be changed in order to increase the security of the server? (Choose two.) A. Protocol 2, 1 B. PermitEmptyPasswords n...

There is a restricted area in a site hosted by Apache HTTPD, which requires users to authenticate against the file /srv/www/security/site-passwd. Which command is used to CHANGE the password of exi...

Which option in the Postfix configuration makes Postfix pass email to external destinations to another SMTP-server? (Specify ONLY the option name without any values.)

Which Linux user is used by vsftpd to perform file system operations for anonymous FTP users? A. The Linux user which runs the vsftpd process B. The Linux user that owns the root FTP directory ser...

A zone file contains the following lines: $ORIGIN example.com host2.example.org. IN A 198.51.100.102 and is included in the BIND configuration using this configuration stanza: zone "example....

Which of the following values can be used in the OpenLDAP attribute olcBackend for any object of the class olcBackendConfig to specify a backend? (Choose three.) A. xml B. bdb C. passwd D. ldap...

Which of the following DNS records could be a glue record? A. ns1.lab A 198.51.100.53 B. lab NS 198.51.100.53 C. ns1.lab N S198.51.100.53 D. ns1. A 198.51.100.53 E. ns1.lab GLUE 198.51.100.53

Which of the following actions synchronizes UNIX passwords with the Samba passwords when the encrypted Samba password is changed using smbpasswd? A. There are no actions to accomplish this since is...

Using its standard configuration, how does fail2ban block offending SSH clients? A. By rejecting connections due to its role as a proxy in front of SSHD. B. By modifying and adjusting the SSHD con...