[Eug-lug] Re: Wrapping

[Bob Miller]

walter fry wrote:

> newbe walter here..
> What means   wraping  ?  please

tcpwrappers is a way to restrict access to network services running on
a machine.  You can configure it so that, for example, your FTP service
is only accessible from one group of IP addresses, and your ssh daemon
is accessible from a different group.

The daemon instance is "wrapped" by an external program that takes
control before the daemon, checks that the source address is okay,
then lets the daemon run normally (or else it shuts down and doesn't
let the daemon run).

To forestall your next question (-:, a daemon is a program that
implements a service of some kind.  They're also called servers, but
"server" can also mean the host on which services run.  Daemon always
means the program.

Also see the Hackers' Dictionary definition.
http://www.google.com/search?q=hackers+dictionary+daemon

It's a Unix/Linux convention that daemons' names end in "d" for
daemon: ftpd, rlogind, httpd, mysqld, cupsd...

-- 
Bob Miller                              K<bob>
kbobsoft software consulting
http://kbobsoft.com                     kbob at jogger-egg.com