Exam 17: Unix/Linux Vulnerabilities

The r utilities use an insecure mechanism called ____.

Linux source code is available free of cost, and some Linux distributions (distros) are also free.

Linux and UNIX-based operating systems use the sendmail daemon to send e-mail messages by employing ___________________________________.

What are the basic exploits of a Linux system?

You cannot use the mutt package in conjunction with PGP.

In 1973, the developers of UNIX revised it by writing it in assembly language.

To delete an account in Linux, use the following syntax:

What are some of the Telnet service vulnerabilities?

The ____________________ package allows system administrators to grant some or all root privileges to users listed in the sudoers text file.

Linux was derived from UNIX by an engineering student from Finland named ____ in 1991.

A true command line interface (Terminal mode using tty1 through tty6) never goes into screen-saver mode.

The ____ utility can be used for finding strings within files.

The ____________________ command helps users of a Linux operating system temporarily switch the current privileges available to those of the root account.

The wu-ftpd server allocates memory by using a function called ____________________.

The first version of UNIX was written in ____ language.

____________________ is the default and unchanging administrative user for UNIX/Linux systems.

UNIX and Linux systems use Trivial File Transfer Protocol, or TFTP, to start diskless computers.

What can go wrong if every user of a Linux system has unlimited access to resources?