/etc/xinetd.d/echo is in xinetd 1:2.3.15-3ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | # default: off
# description: An xinetd internal service which echo's characters back to
# clients.
# This is the tcp version.
service echo
{
disable = yes
type = INTERNAL
id = echo-stream
socket_type = stream
protocol = tcp
user = root
wait = no
}
# This is the udp version.
service echo
{
disable = yes
type = INTERNAL
id = echo-dgram
socket_type = dgram
protocol = udp
user = root
wait = yes
}
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