> > There are a few sites on the net whose host names cannot be resolved
> > and one or two of their users can charitably be called socially deviant.
> > I naturally don't have a firewall protecting my own equipment and I
> > don't want one either, but I would like to refuse connections from any
> > machine whose name does not resolve.
> > What can I do, short of installing a firewall, to implement this?
> > Sick Puppy
> The only way I can see doing this is setting up a proxy for each service
> you want to check. Let the remotes connect to the proxy first and have
> the proxy do your checking. If they checkout, then let them connect to
> the real program.
Excuse me... Only a small clarification about PROXIES... From where
could I obtain the proxy server software (preferable to UNIX systems)?
> This is pretty easy to do, especially if you pick up a copy of TIS's
> Firewall Toolkit (ftp.tis.com). I know... I've done it!! :-)
> Good luck!
> scott barman
> scott @
com / barman @
Fernando Cozinheiro Email: cooker @
System & Network Administrator
Universidade de Aveiro Phone:
Centro de Informatica UA: +351 34 370200/Ext.2254
3800 Aveiro CIUA: +351 34 370345
Portugal Telefax: +351 34 370214