Bind
綁定中的多個ptr記錄
我在這裡執行一些小型 ISP，我擁有幾個 IP 範圍。
我已經為我的一些客戶提供了一些公共 IP 地址，他們正在上面執行郵件伺服器。他們要求我
PTR為他們的 IP 添加反向 DNS 條目 ()。我的伺服器上正在執行 Bind。我可以
PTR在同一伺服器/同一文件中添加多條記錄嗎？我擁有的IP範圍：
192.168.10.0/24Customer A: 192.168.10.103 Customer B: 192.168.10.199 Customer C: 192.168.10.169 Customer D: 192.168.10.69謝謝。
正如您從這個 TLDP 範例
PTR中看到的那樣，您可以在同一個區域中擁有多條記錄。$TTL 3D @ IN SOA yourdomain.com. root.yourdomain.com. ( 199609206 ; Serial 28800 ; Refresh 7200 ; Retry 604800 ; Expire 86400) ; Minimum TTL NS ns1.yourdomain.com. NS ns2.yourdomain.net. ; ; Servers ; 1 PTR router.yourdomain.com. 2 PTR server.yourdomain.com. ; ; Customers ; 69 PTR mail.customerD.com. 103 PTR mail.customerA.com. 169 PTR mail.customerC.com. 199 PTR mail.customerB.com.將您分配的任何 IP 放入您的反向文件以避免重複是一個好主意。
工作範例
這對我來說看起來不錯：
$ dig -x 103.249.240.224 ; <<>> DiG 9.9.5-3ubuntu0.4-Ubuntu <<>> -x 103.249.240.224 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8551 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1 ;; QUESTION SECTION: ;224.240.249.103.in-addr.arpa. IN PTR ;; ANSWER SECTION: 224.240.249.103.in-addr.arpa. 1685 IN PTR mk.localhost-server.com. ;; ADDITIONAL SECTION: mk.localhost-server.com. 21526 IN A 103.249.240.224 ;; Query time: 2 msec ;; SERVER: 127.0.1.1#53(127.0.1.1) ;; WHEN: Wed Aug 19 09:53:51 PDT 2015 ;; MSG SIZE rcvd: 99 $ dig mk.localhost-server.com ; <<>> DiG 9.9.5-3ubuntu0.4-Ubuntu <<>> mk.localhost-server.com ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61167 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;mk.localhost-server.com. IN A ;; ANSWER SECTION: mk.localhost-server.com. 21520 IN A 103.249.240.224 ;; Query time: 1 msec ;; SERVER: 127.0.1.1#53(127.0.1.1) ;; WHEN: Wed Aug 19 09:53:56 PDT 2015 ;; MSG SIZE rcvd: 57 chicks@silver 09:53:56 ~ !515 $現在它壞了
確認損壞：
$ dig -x 103.249.240.224 ; <<>> DiG 9.9.5-3ubuntu0.3-Ubuntu <<>> -x 103.249.240.224 ;; global options: +cmd ;; connection timed out; no servers could be reached來自http://mxtoolbox.com/SuperTool.aspx?action=ptr%3a103.249.240.224&run=toolpage：
PWS3v2 11784ms 0 c.in-addr-servers.arpa 196.216.169.10 NON-AUTH 296 ms Received 6 Referrals , rcode=NO_ERROR 103.in-addr.arpa. 86400 IN NS ns1.apnic.net,103.in-addr.arpa. 86400 IN NS ns2.lacnic.net,103.in-addr.arpa. 86400 IN NS ns3.apnic.net,103.in-addr.arpa. 86400 IN NS ns4.apnic.net,103.in-addr.arpa. 86400 IN NS sec1.authdns.ripe.net,103.in-addr.arpa. 86400 IN NS tinnie.arin.net, 1 ns4.apnic.net 202.12.31.140 NON-AUTH 187 ms Received 4 Referrals , rcode=NO_ERROR 240.249.103.in-addr.arpa. 86400 IN NS ns2.gazonindia.com,240.249.103.in-addr.arpa. 86400 IN NS ns4.gazonindia.com,240.249.103.in-addr.arpa. 86400 IN NS ns3.gazonindia.com,240.249.103.in-addr.arpa. 86400 IN NS ns1.gazonindia.com, 2 ns4.gazonindia.com 103.249.240.10 NON-AUTH 187 ms Timeout after 3 sec, rcode=NO_ERROR 2 ns1.gazonindia.com 103.249.240.8 NON-AUTH 187 ms Timeout after 3 sec, rcode=NO_ERROR 2 ns3.gazonindia.com 103.249.240.9 NON-AUTH 187 ms Timeout after 3 sec, rcode=NO_ERROR 2 ns2.gazonindia.com NON-AUTH 187 ms Timeout resolving IP, rcode=NO_ERROR這看起來像 Gazon 的伺服器沒有響應。因此，讓我們找出通過以下方式與誰聯繫
whois：$ whois 103.249.240.224 % [whois.apnic.net] % Whois data copyright terms http://www.apnic.net/db/dbcopyright.html % Information related to '103.249.240.0 - 103.249.243.255' inetnum: 103.249.240.0 - 103.249.243.255 netname: GAZON descr: Gazon Communications India Limited admin-c: KD220-AP tech-c: SA683-AP country: IN mnt-by: MAINT-IN-IRINN mnt-irt: IRT-IRINN-IN status: ASSIGNED portable changed: hm-changed@apnic.net 20130613 mnt-routes: MAINT-IN-GAZON source: APNIC irt: IRT-IRINN-IN address: Flat no. 6B, Uppals M6 Plaza, 6 Jasola District Centre, New Delhi-110025 e-mail: helpdesk@irinn.in abuse-mailbox: abuse@irinn.in admin-c: IH175-AP tech-c: IH174-AP auth: # Filtered mnt-by: MAINT-IN-IRINN changed: hostmaster@irinn.in 20120907 source: APNIC role: System Admin address: Parason House, 28, Venkatesh Nagar, Aurangabad, Maharashtra country: IN phone: +91-9762055555 fax-no: +91-2402332944 e-mail: kishor@parasonglobal.com admin-c: KD220-AP tech-c: KD220-AP nic-hdl: SA683-AP remarks: send spam and abuse report to abuse@parasonglobal.com notify: kishor@parasonglobal.com abuse-mailbox: abuse@parasonglobal.com mnt-by: MAINT-IN-PARASON changed: abuse@parasonglobal.com 20140801 source: APNIC person: Kishor Desarda address: Parason House, 28, Venkatesh Nagar, Aurangabad, Maharashtra country: IN phone: +91-9762055555 fax-no: +91-2402332944 e-mail: kishor@parasonglobal.com nic-hdl: KD220-AP remarks: send spam and abuse report to abuse@parasonglobal.com notify: kishor@parasonglobal.com abuse-mailbox: abuse@parasonglobal.com mnt-by: MAINT-IN-PARASON changed: kishor@parasonglobal.com 20140801 source: APNIC % Information related to '103.249.240.0/24AS132770' route: 103.249.240.0/24 descr: Gazon Communications India Limited origin: AS132770 country: IN mnt-lower: MAINT-IN-IRINN mnt-routes: MAINT-IN-IRINN mnt-by: MAINT-IN-IRINN changed: netadmin@gazonindia.com 20130708 source: APNIC % Information related to '103.249.240.0 - 103.249.243.255' inetnum: 103.249.240.0 - 103.249.243.255 netname: GAZON descr: Gazon Communications India Limited admin-c: KD1-IN tech-c: MN8-IN country: IN mnt-by: MAINT-IN-GAZON mnt-irt: IRT-GAZON-IN status: ASSIGNED portable changed: kishor@gazonindia.com source: APNIC irt: IRT-GAZON-IN address: Pune phone: +91 02065101230 fax-no: +91 2402332944 e-mail: netadmin@gazonindia.com abuse-mailbox: abuse@gazonindia.com admin-c: KD1-IN tech-c: MN8-IN auth: CRYPT-PW yx9RQZOlthZT6 remarks: send spam and abuse report to abuse@gazonindia.com mnt-by: MAINT-IN-GAZON changed: netadmin@gazonindia.com 20130613 source: IRINN role: Manager NOC address: Pune country: IN phone: +91 02065101230 fax-no: +91 2402332944 e-mail: netadmin@gazonindia.com admin-c: KD1-IN tech-c: KD1-IN nic-hdl: MN8-IN remarks: send spam and abuse report to abuse@gazonindia.com notify: abuse@gazonindia.com abuse-mailbox: abuse@gazonindia.com mnt-by: MAINT-IN-GAZON changed: netadmin@gazonindia.com 20130613 source: IRINN person: Kishor Desarda address: Parason House, 28, Venkatesh Nagar, Jalna Road country: IN phone: +91 02065101230 fax-no: +91 2402332944 e-mail: kishor@gazonindia.com nic-hdl: KD1-IN remarks: send spam and abuse report to abuse@gazonindia.com notify: abuse@gazonindia.com abuse-mailbox: abuse@gazonindia.com mnt-by: MAINT-IN-GAZON changed: kishor@gazonindia.com 20130613 source: IRINN % Information related to '103.249.240.0/24AS132770' route: 103.249.240.0/24 descr: Gazon Communications India Limited country: IN origin: AS132770 remarks: abuse@gazonindia.com notify: netadmin@gazonindia.com mnt-lower: MAINT-IN-GAZON mnt-routes: MAINT-IN-GAZON mnt-by: MAINT-IN-GAZON changed: netadmin@gazonindia.com 20130625 source: IRINN % This query was served by the APNIC Whois Service version 1.69.1-APNICv1r0 (UNDEFINED)