Date: Sat, 15 Sep 2001 01:31:17 +0300 From: Giorgos Keramidas <charon@labs.gr> To: Mark <mw@lanfear.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Restricting Ports to local access? Message-ID: <20010915013116.B37616@hades.hell.gr> In-Reply-To: <000001c13d5e$e443e700$0200000a@redmond.corp.microsoft.com>; from mw@lanfear.com on Fri, Sep 14, 2001 at 01:50:30PM -0700 References: <000001c13d5e$e443e700$0200000a@redmond.corp.microsoft.com>
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Mark <mw@lanfear.com> wrote: > > Is there any way to restrict a port to have local access only > (i.e. if you're running a shell or tunnelling in through SSH) but not be > accessible to machines outside on the net? > > [motivation: I'd like to force POP3 clients to tunnel in using > SSH] You can use tcp_wrappers or a firewall to block access to everyone except for localhost to these ports. Then your users will have to use ssh tunnels and connect to 127.0.0.1:110 to get to the popper. -giorgos To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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