What are those services for?

[Victor_5]

I want to know what are those services for:

in /etc/inetd.conf
bootps
chargen
ntalk
time

in /etc/services
bootpc
ingreslock
talk
route

Thanks.

[Jeff Schussele · Accepted solution]

Hi Victor,

in /etc/inetd.conf
bootps => the bootp daemon
chargen => character generator
ntalk => talkd - remote user communication server
time => machine readable time in the form of the number of seconds since midnight, January 1, 1900

in /etc/services
bootpc => BOOTP client port
ingreslock => ?
talk => two-way, screen-oriented communication program
route => for gated
& mrouted

Rgds,
Jeff

[S.K. Chan]

bootps=Bootstrap protocol server (used to download nw information to devices)
chargen=It's a builtin service provided by inetd (port 19) used to echo a set of character repeatedly on this port upon connection.
ntalk=Use to activate the talk service in /etc/services.
time= Time server (used for remote clock synchronization)

bootpc=Bootstrap protocol client
ingreslock=Used if you got Ingres DB (typically port 1524)
talk=Is remote user communication service (talk service), used the "talk" command to communicate with remote client.
route=for servicing routing protocol (routed)

[Victor_5]

Excellent, Jeff! Thank you so much.

I gave you 10 points although you missed one. Now, we left one more, ingreslock?

[Ron Kinner]

in /etc/inetd.conf
bootps

bootp server.

http://www.mcsr.olemiss.edu/cgi-bin/man-cgi?bootp+1


chargen

CHARacter GENerator

http://www.networksorcery.com/enp/protocol/chargen.htm

ntalk

New TALK (UNIX Chat program)

http://wombat.doc.ic.ac.uk/foldoc/foldoc.cgi?ntalk


time A simple service which provides a way to sync the time on different UNIX machines. Like NTP but dumber.

http://www.singaporestandardtime.org.sg/nets.html

in /etc/services
bootpc

BOOTP Client - Talks to a Bootp Server to get its info.

ingreslock

The ingreslock service is for locking parts of the Ingres database. It uses port 1524 TCP and UDP. Many administrators allow this service by mistake. Any unused service can be used in the above example, and since the attacker needs root access to do this he/she can add any new service in /etc/services or alter the port number of an existing service.

http://rr.sans.org/unix/inetd.php

Good source for info on all of the above.



talk

See Ntalk

route RIP see man routed. A simple dynamic routing protocol used to let PC communicate with routers and other pCs about the routes they each know.

Ron

[Victor_5]

Thank you so much, all!