What does the following iptables rule accomplish:
What does the following iptables rule accomplish:
iptables A INPUT s !127.0.0.0/8 p tcp dport 111 j DROP
Which tool, distributed with BIND 9, will check the syntax of a named configuration file?
Which tool, distributed with BIND 9, will check the syntax of a named configuration file? (Supply only the program name, without any option or parameters)
Which of the following are common techniques for securing a sendmail server ?
Which of the following are common techniques for securing a sendmail server ?
(Select 3 correct answers)
Which of the following is NOT and valid scan technique with nmap ?
Which of the following is NOT and valid scan technique with nmap ?
Which of the following are included in the defined attributes classes ?
Linux Extended Attributes include attributes classes. Which of the following are included in the defined attributes classes ?
(Select 3 correct answers)
what command will fetch the public key from the server ?
Someone who whises to receive and encrypted file has provided a key UID and a key fingerprint for verification to the data sender. Assuming that this key is on a public keyserver, what command will fetch the public key from the server ?
which directives are used to restrict access based on host/domain name and IP adress?
In apache configuration which directives are used to restrict access based on host/domain name and IP adress?