> After reading postings on ports I have a question.
> In order to use a computer to browse the internet, and use email via a
> ppp(modem) connection, to an ISP, what ports should be open?
If you're not running any servers, the answer is _none_. With the
possible exception of FTP sessions, all TCP connections involving your
computer should originate from your computer. So there's no need to
accept an incoming connection from anyone else.
If you receive e-mail via POP, then your end is always initiating the
connection for mail, and there's no need to allow someone else to
establish a connection to you.
If you receive e-mail via sendmail (which would be _very_ unusual for
someone with a dial-up connection to the 'net), then you'd need to allow
SMTP connections. But this probably doesn't apply to you.
Quote:> can all others(ports) be closed?