A senior administrator instructs a technician to run the following script on a Linux server:
for i in {1..65536); do echo Si; telnet localhost $i; done
The script mostly returns the following message: Connection refused. However, there are several entries in the console display that look like this:
80
Connected to localhost
443
Connected to localhost
Which of the following actions should the technician perform NEXT?

Question

A senior administrator instructs a technician to run the following script on a Linux server:

for i in {1..65536); do echo Si; telnet localhost $i; done

The script mostly returns the following message: Connection refused. However, there are several entries in the console display that look like this:

80

Connected to localhost

443

Connected to localhost

Which of the following actions should the technician perform NEXT?

Victor Avila · Accepted Answer

Look for an unauthorized HTTP service on this server

Victor Avila · Answer

Look for a virus infection on this server

Victor Avila · Answer

Look for an unauthorized Telnet service on this server

Victor Avila · Answer

Look for an unauthorized port scanning service on this server.

List of questions