From owner-freebsd-questions Tue Jan 7 18:42:42 2003 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CFEBA37B401 for ; Tue, 7 Jan 2003 18:42:40 -0800 (PST) Received: from smtp.a1poweruser.com (oh-chardon6a-34.clvhoh.adelphia.net [68.169.105.34]) by mx1.FreeBSD.org (Postfix) with ESMTP id B997A43ED4 for ; Tue, 7 Jan 2003 18:42:39 -0800 (PST) (envelope-from barbish@a1poweruser.com) Received: from barbish (unknown [10.0.10.6]) by smtp.a1poweruser.com (Postfix) with SMTP id 2A9DD37; Tue, 7 Jan 2003 21:50:12 -0500 (EST) Reply-To: From: "JoeB" To: "Fuzzy" Cc: "FBSDQ" Subject: RE: dig command for reverse dsn check Date: Tue, 7 Jan 2003 21:42:38 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0) In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Tue, 7 Jan 2003, JoeB wrote: > How do I check my ISP domain name to see if it's DNS server is > configured correctly for email reverse DNS lookup? I have used dig > isp-domain-name but I can not tell from what it displays what to look > for to verify it's configured correctly. The dig display is lacking > descriptive verbiage to identify what the information displayed means. > Can someone help me please. I'd use: dig -x ip.ad.dr.ess PTR [@name.server] the ANSWER SECTION shows what DNS thinks is the reverse name for that IP. dig -x 66.26.76.83 ptr ; <<>> DiG 8.3 <<>> -x ptr ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2 ;; QUERY SECTION: ;; 83.76.26.66.in-addr.arpa, type = PTR, class = IN ;; ANSWER SECTION: 83.76.26.66.in-addr.arpa. 59m25s IN PTR rdu26-76-083.nc.rr.com. ;; AUTHORITY SECTION: 76.26.66.in-addr.arpa. 59m25s IN NS ns1.nc.rr.com. 76.26.66.in-addr.arpa. 59m25s IN NS ns2.nc.rr.com. ;; ADDITIONAL SECTION: ns1.nc.rr.com. 33m25s IN A 24.93.67.126 ns2.nc.rr.com. 33m25s IN A 24.93.67.127 ;; Total query time: 0 msec ;; FROM: pooh.ASARian.org to SERVER: default -- 127.0.0.1 ;; WHEN: Tue Jan 7 21:34:00 2003 ;; MSG SIZE sent: 42 rcvd: 146 ******************************************************************** ************ Thanks for the quick reply, but I need some clarification MY email address = user@adelphia.net My email server mail.clvhoh.adelphia.net dig -x 66.26.76.83 ptr what IP address to use in dig command? The ip address of the domain name or the email server? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message