Remote Access

Question 0

Display all telnet sessions opened from a router:

Answer 0

Router1#show sessions
^ ^
*notice the prompt

Question 1

Show all telnet sessions opened to a router:

Answer 1

Router1#show users
^ ^
*notice the prompt

Question 2

Show all ssh sessions opened to this router:

Answer 2

Router1#show ssh users
^ ^
*notice the prompt

Question 3

Resume telnet session 1 to the router:

Answer 3

Router1# resume 1
^ ^
*notice the prompt

Question 4

Close the current telnet session:

Answer 4

Router1# disconnect
^ ^
*notice the prompt

Question 5

Close the telnet session on line 1:

Answer 5

Router1# clear line 1
^ ^
*notice the prompt

Question 6

Change the console line’s history buffer to 15:

Answer 6

RouterA>enable
RouterA#conf t
RouterA(config)#line con 0
RouterA(config-line)#history size 15

Question 7

What does RFB stand for and what is it?

Answer 7

Remote Frame Buffer

RFB (“remote framebuffer”) is a simple protocol for remote access to graphical user interfaces. Because it works at the framebuffer level it is applicable to all window- ing systems and applications, including X11, Windows and Macintosh. RFB is the protocol used in VNC (Virtual Network Computing).
The remote endpoint where the user sits (i.e. the display plus keyboard and/or pointer) is called the RFB client or viewer. The endpoint where changes to the framebuffer originate (i.e. the windowing system and applications) is known as the RFB server

Question 8

What does VNC stand for and what is it?

Answer 8

Virtual Network Computing

Virtual Network Computing (VNC) is a graphical desktop sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer. It transmits the keyboard and mouse events from one computer to another, relaying the graphical screen updates back in the other direction, over a network.[1]

Question 9

What does RFB stand for and what is it?

Answer 9

Remote Frame Buffer

RFB (“remote framebuffer”) is a simple protocol for remote access to graphical user interfaces. Because it works at the framebuffer level it is applicable to all window- ing systems and applications, including X11, Windows and Macintosh. RFB is the protocol used in VNC (Virtual Network Computing).
The remote endpoint where the user sits (i.e. the display plus keyboard and/or pointer) is called the RFB client or viewer. The endpoint where changes to the framebuffer originate (i.e. the windowing system and applications) is known as the RFB server

Question 10

What does VNC stand for and what is it?

Answer 10

Virtual Network Computing

Virtual Network Computing (VNC) is a graphical desktop sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer. It transmits the keyboard and mouse events from one computer to another, relaying the graphical screen updates back in the other direction, over a network.[1]

Question 11

Allow logging messages to be displayed on vty-connected devices:

Answer 11

Router#terminal monitor

to disable:

Router#terminal no monitor