Linux_FoundationLinux_Foundation
LFCS · Question #515
LFCS Question #515: Real Exam Question with Answer & Explanation
The correct answer is B: It allows easy access to your X server by other users.. The xhost program is considered dangerous because its improper use can grant unauthorized users easy access to your X server, leading to security vulnerabilities.
Submitted by lucia.co· Apr 18, 2026Networking
Question
Why is the xhost program considered dangerous to use?
Options
- AIt makes it difficult to uniquely identify a computer on the network.
- BIt allows easy access to your X server by other users.
- CIt logs sensitive information to syslog.
- DIt makes your computer share network resources without any authentication.
- EIt is a graphical DNS tool with known exploits.
Explanation
The xhost program is considered dangerous because its improper use can grant unauthorized users easy access to your X server, leading to security vulnerabilities.
Common mistakes.
- A.
xhostmanages X server access control, not network identification of computers. - C.
xhostitself is an access control utility for the X server; its primary danger is not logging sensitive information to syslog. - D.
xhostspecifically affects X server access, not general network resource sharing without authentication. - E.
xhostis an X server access control program, not a graphical DNS tool.
Concept tested. X server security and xhost command risks
Reference. https://man7.org/linux/man-pages/man1/xhost.1.html
Topics
#X server security#xhost command#access control
Community Discussion
No community discussion yet for this question.