Date: Tue, 11 Jul 2000 01:14:16 -0700 From: "Hank Wethington" <bsd@info-logix.com> To: <cjclark@alum.mit.edu>, <freebsd-questions@freebsd.org> Subject: RE: Having ppp(8) Set Hostname Message-ID: <KFEIIDCJNHBCGLAFNMJIAEKOCHAA.bsd@info-logix.com> In-Reply-To: <20000711002558.D182@dialin-client.earthlink.net>
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This is probably a bad place to say so, but instead of having you machine try to send mail when using earhtlink, just use E-links mail servers, they allow open relay. Of course if you are sending to someone who black lists e-link then your stuck with your method. Normally when doing a reverse dns lookup, it is not just looking for the ip, since it can be spoofed, but the host name to match the ip. i.e. adsl-63-194-112-63.dsl.snlo01.pacbell.net Not sure what it would be for e-link though. Hank -----Original Message----- From: owner-freebsd-questions@FreeBSD.ORG [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Crist J. Clark Sent: Tuesday, July 11, 2000 12:26 AM To: freebsd-questions@freebsd.org Subject: Having ppp(8) Set Hostname My mail forwarding recently stopped working unless my PC has a valid hostname. I am trying to get ppp(8) to set the hostname automatically... but it turning out to be a lot harder than I thought. I am trying to get it done in a ppp.linkup, EarthLink: shell /root/sethostfromip MYADDR !bg /usr/sbin/sendmail -q !bg su cjc -c /usr/local/bin/fetchmail The script 'sethostfromip' does a reverse-lookup of MYADDR and tries to set the hostname accordingly (yeah, a quick program would probably be better, but I'm lazy), if [ expr $1 : '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*' > /dev/null 2>&1 ]; then IP=$1 else IP=`ifconfig tun0 | awk '/inet/ { print $2 }'` fi HOSTNAME=`nslookup $IP | awk '/^Name:/ { print $2 }'` hostname $HOSTNAME However, the nslookup keeps failing and neither the sendmail or fetchmail runs very reliably. Here the stderr output from the sethostfromip when I wake up the PPP connection right now, *** Can't find server name for address 207.217.126.81: Timed out *** Can't find server name for address 207.217.77.82: Timed out *** Default servers are not available Here is the ppp.log showing those actually being run, Jul 11 00:22:31 <daemon.info> dialin-client ppp[58]: tun0: Command: EarthLink: shell /root/sethostfromip MYADDR Jul 11 00:23:03 <daemon.info> dialin-client ppp[58]: tun0: Command: EarthLink: !bg /usr/sbin/sendmail -q Jul 11 00:23:03 <daemon.info> dialin-client ppp[58]: tun0: Command: EarthLink: !bg su cjc -c /usr/local/bin/fetchmail Others must be setting new hostname when they do a dialup, right? How do you do it? I'm suprised it's not an option built into ppp... Or is it and I have not managed to find it? -- Crist J. Clark cjclark@alum.mit.edu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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