Level 1 - Server Level 1 - Workstation
echo is a network service that responds to clients with the data sent to it by the client. This service is intended for debugging and testing purposes. It is recommended that this service be disabled.
Disabling this service will reduce the remote attack surface of the system.
Verify the echo service is not enabled. Run the following command and verify results are as indicated:
grep -R "^echo" /etc/inetd.*
No results should be returned
check /etc/xinetd.conf and /etc/xinetd.d/* and verify all echo services have disable = yes set.
Comment out or remove any lines starting with echo from /etc/inetd.conf and /etc/inetd.d/*.
Set disable = yes on all echo services in /etc/xinetd.conf and /etc/xinetd.d/*.