xinetd-simple-services - Internal xinetd simple services
||OpenMandriva Lx 3.0
||OpenMandriva Main Release x86_64
Internal xinetd simple services (not very useful one):
Chargen is short for Character Generator and is a service that generates
random characters either in one UDP packet containing a random number (between
0 and 512) of characters, or a TCP session. The UDP Chargen server looks for a
UDP packet on port 19 and responds with the random character packet.
With TCP Chargen, the server sends as a continuous stream of TCP packets once
a connection is made, and until the session closes. The data is thrown away.
Chargen is used to find the cause for dropped packets. It uses TCP/UDP port
19. An infiltrator can create a DoS attack by spoofing an IP address and
causing two devices to send random traffic to each other.
RFC 864 describes the Chargen service.
The Daytime protocol is another testing tool and uses port 13 for both UDP and
TCP versions. On receipt of a datagram to port 13, the server in the UDP
version, sends the current date and time in ASCII format in a datagram. The
TCP version, on receipt of a datagram to port 13, and once the connection is
established, sends the date and time in ASCII format and closes the
RFC 867 describes the Daytime service.
Echo uses UDP and TCP port 7 and is used as a debgging tool to send any
datagrams received from a source, back to that source. The risk with this is
that someone who has access to the network can overload devices via the Echo
service amounting to a DoS attack.
RFC 862 describes the Echo service.
Show servers running
Show available services
Show servers running and available services
- Enable OpenMandriva Main Release repository on Install and Remove Software
- Update packages list:
# urpmi.update -a
- Install xinetd-simple-services rpm package:
# urpmi xinetd-simple-services
2015-07-19 - Bernhard Rosenkraenzer <email@example.com> 2.3.15-14
- (d3a1497) MassBuild#774: Increase release tag