In message <"02ec01d22092$81eaabc0$85c00340$@dawalibi"@idm.net.lb>, Daniel Dawa libi writes: > > Hello > > We are getting "Unspecified error" when querying our DNS server (Query: > outlook.live.com) from a PC communication with our DNS > > We tried to perform the same query from the DNS itself (local host) and we > found that the Dig output is showing with the following message "Truncated, > retrying in TCP mode". > > We also observed that the message size of the requested query > "outlook.live.com" increased recently from MSG SIZE 221 to 770 > > Can you please help why we are getting this error (client side) and why the > TCP mode is shown in the dig output since other queries do not show TCP mode > in their output?
Because DiG is sending plain DNS queries to the server and the answer does not fit into 512 bytes. As DiG is a diagnostic program it lets the operator know that it switched from UDP to TCP. > [root@DNS1 dan]# dig outlook.live.com > > ;; Truncated, retrying in TCP mode. > > > > ; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 <<>> outlook.live.com > > ;; global options: +cmd > > ;; Got answer: > > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45725 > > ;; flags: qr rd ra; QUERY: 1, ANSWER: 15, AUTHORITY: 7, ADDITIONAL: 11 > > > > ;; QUESTION SECTION: > > ;outlook.live.com. IN A > > > > ;; ANSWER SECTION: > > outlook.live.com. 881 IN CNAME > edge-live.outlook.office.com. > > edge-live.outlook.office.com. 280 IN CNAME > outlook-live-com.a-0010.a-msedge.net. > > outlook-live-com.a-0010.a-msedge.net. 160 IN CNAME ipv4.outlook.com. > > ipv4.outlook.com. 126 IN CNAME > outlook.live.com.glbdns2.microsoft.com. > > outlook.live.com.glbdns2.microsoft.com. 280 IN CNAME > live-emeaeast3.office365.com. > > live-emeaeast3.office365.com. 294 IN A 40.101.44.178 > > live-emeaeast3.office365.com. 294 IN A 134.170.68.82 > > live-emeaeast3.office365.com. 294 IN A 40.101.28.178 > > live-emeaeast3.office365.com. 294 IN A 40.101.1.82 > > live-emeaeast3.office365.com. 294 IN A 132.245.79.242 > > live-emeaeast3.office365.com. 294 IN A 40.96.21.34 > > live-emeaeast3.office365.com. 294 IN A 40.101.9.2 > > live-emeaeast3.office365.com. 294 IN A 40.101.60.2 > > live-emeaeast3.office365.com. 294 IN A 40.96.21.50 > > live-emeaeast3.office365.com. 294 IN A 132.245.194.242 > > > > ;; AUTHORITY SECTION: > > office365.com. 170080 IN NS ns2.msft.net. > > office365.com. 170080 IN NS ns1a.o365filtering.com. > > office365.com. 170080 IN NS ns3.msft.net. > > office365.com. 170080 IN NS ns1.msft.net. > > office365.com. 170080 IN NS ns4a.o365filtering.com. > > office365.com. 170080 IN NS ns4.msft.net. > > office365.com. 170080 IN NS ns2a.o365filtering.com. > > > > ;; ADDITIONAL SECTION: > > ns1.msft.net. 289 IN A 208.84.0.53 > > ns2.msft.net. 170080 IN A 208.84.2.53 > > ns3.msft.net. 289 IN A 193.221.113.53 > > ns4.msft.net. 170080 IN A 208.76.45.53 > > ns1a.o365filtering.com. 311 IN A 157.56.110.11 > > ns2a.o365filtering.com. 311 IN A 157.56.116.52 > > ns4a.o365filtering.com. 311 IN A 157.55.133.11 > > ns1.msft.net. 289 IN AAAA 2620:0:30::53 > > ns2.msft.net. 170080 IN AAAA 2620:0:32::53 > > ns3.msft.net. 289 IN AAAA 2620:0:34::53 > > ns4.msft.net. 170080 IN AAAA 2620:0:37::53 > > > > ;; Query time: 0 msec > > ;; SERVER: 127.0.0.1#53(127.0.0.1) > > ;; WHEN: Fri Oct 7 07:57:41 2016 > > ;; MSG SIZE rcvd: 770 > > > > > > Regards > > Daniel > > > --Boundary_(ID_nuHOPUgS9zdNCKFxG6Fb0Q) > Content-type: text/html; CHARSET=US-ASCII > Content-transfer-encoding: quoted-printable > > <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = > xmlns:o=3D"urn:schemas-microsoft-com:office:office" = > xmlns:w=3D"urn:schemas-microsoft-com:office:word" = > xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml"; = > xmlns=3D"http://www.w3.org/TR/REC-html40";><head><meta = > http-equiv=3DContent-Type content=3D"text/html; = > charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 12 = > (filtered medium)"><style><!-- > /* Font Definitions */ > @font-face > {font-family:"Cambria Math"; > panose-1:2 4 5 3 5 4 6 3 2 4;} > @font-face > {font-family:Calibri; > panose-1:2 15 5 2 2 2 4 3 2 4;} > /* Style Definitions */ > p.MsoNormal, li.MsoNormal, div.MsoNormal > {margin:0in; > margin-bottom:.0001pt; > font-size:11.0pt; > font-family:"Calibri","sans-serif";} > a:link, span.MsoHyperlink > {mso-style-priority:99; > color:blue; > text-decoration:underline;} > a:visited, span.MsoHyperlinkFollowed > {mso-style-priority:99; > color:purple; > text-decoration:underline;} > span.EmailStyle17 > {mso-style-type:personal-compose; > font-family:"Calibri","sans-serif"; > color:windowtext;} > .MsoChpDefault > {mso-style-type:export-only;} > @page WordSection1 > {size:8.5in 11.0in; > margin:1.0in 1.0in 1.0in 1.0in;} > div.WordSection1 > {page:WordSection1;} > --></style><!--[if gte mso 9]><xml> > <o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" /> > </xml><![endif]--><!--[if gte mso 9]><xml> > <o:shapelayout v:ext=3D"edit"> > <o:idmap v:ext=3D"edit" data=3D"1" /> > </o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue = > vlink=3Dpurple><div class=3DWordSection1><p = > class=3DMsoNormal>Hello<o:p></o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>We are = > getting “Unspecified error” when querying our DNS server = > (Query: outlook.live.com) from a PC communication with our = > DNS<o:p></o:p></p><p class=3DMsoNormal>We tried to perform the same = > query from the DNS itself (local host) and we found that the Dig output = > is showing with the following message “Truncated, retrying in TCP = > mode”. <o:p></o:p></p><p class=3DMsoNormal>We also observed that = > the message size of the requested query “outlook.live.com” = > increased recently from MSG SIZE 221 to 770 <o:p></o:p></p><p = > class=3DMsoNormal>Can you please help why we are getting this error = > (client side) and why the TCP mode is shown in the dig output since = > other queries do not show TCP mode in their output?<o:p></o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>[root@DNS1 = > dan]# dig outlook.live.com<o:p></o:p></p><p class=3DMsoNormal><b>;; = > Truncated, retrying in TCP mode.<o:p></o:p></b></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>; = > <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.17.rc1.el6_4.6 = > <<>> outlook.live.com<o:p></o:p></p><p class=3DMsoNormal>;; = > global options: +cmd<o:p></o:p></p><p class=3DMsoNormal>;; Got = > answer:<o:p></o:p></p><p class=3DMsoNormal>;; ->>HEADER<<- = > opcode: QUERY, status: NOERROR, id: 45725<o:p></o:p></p><p = > class=3DMsoNormal>;; flags: qr rd ra; QUERY: 1, ANSWER: 15, AUTHORITY: = > 7, ADDITIONAL: 11<o:p></o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>;; QUESTION = > SECTION:<o:p></o:p></p><p = > class=3DMsoNormal>;outlook.live.com. &= > nbsp; = > IN A<o:p></o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>;; ANSWER = > SECTION:<o:p></o:p></p><p = > class=3DMsoNormal>outlook.live.com. = > 881 IN = > CNAME edge-live.outlook.office.com.<o:p></o:p></p><p = > class=3DMsoNormal>edge-live.outlook.office.com. 280 IN = > CNAME outlook-live-com.a-0010.a-msedge.net.<o:p></o:p></p><p = > class=3DMsoNormal>outlook-live-com.a-0010.a-msedge.net. 160 IN CNAME = > ipv4.outlook.com.<o:p></o:p></p><p = > class=3DMsoNormal>ipv4.outlook.com. = > 126 IN = > CNAME = > outlook.live.com.glbdns2.microsoft.com.<o:p></o:p></p><p = > class=3DMsoNormal>outlook.live.com.glbdns2.microsoft.com. 280 IN CNAME = > live-emeaeast3.office365.com.<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 40.101.44.178<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 134.170.68.82<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 40.101.28.178<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 40.101.1.82<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 132.245.79.242<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 40.96.21.34<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 40.101.9.2<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A = > 40.101.60.2<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 40.96.21.50<o:p></o:p></p><p = > class=3DMsoNormal>live-emeaeast3.office365.com. 294 IN = > A 132.245.194.242<o:p></o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>;; AUTHORITY = > SECTION:<o:p></o:p></p><p = > class=3DMsoNormal>office365.com.  = > ; 170080 IN = > NS ns2.msft.net.<o:p></o:p></p><p = > class=3DMsoNormal>office365.com.  = > ; 170080 IN = > NS = > ns1a.o365filtering.com.<o:p></o:p></p><p = > class=3DMsoNormal>office365.com.  = > ; 170080 IN = > NS ns3.msft.net.<o:p></o:p></p><p = > class=3DMsoNormal>office365.com.  = > ; 170080 IN = > NS ns1.msft.net.<o:p></o:p></p><p = > class=3DMsoNormal>office365.com.  = > ; 170080 IN = > NS = > ns4a.o365filtering.com.<o:p></o:p></p><p = > class=3DMsoNormal>office365.com.  = > ; 170080 IN = > NS ns4.msft.net.<o:p></o:p></p><p = > class=3DMsoNormal>office365.com.  = > ; 170080 IN = > NS = > ns2a.o365filtering.com.<o:p></o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>;; = > ADDITIONAL SECTION:<o:p></o:p></p><p = > class=3DMsoNormal>ns1.msft.net. = > 289 = > IN A = > 208.84.0.53<o:p></o:p></p><p = > class=3DMsoNormal>ns2.msft.net. = > 170080 IN = > A = > 208.84.2.53<o:p></o:p></p><p = > class=3DMsoNormal>ns3.msft.net. = > 289 = > IN A = > 193.221.113.53<o:p></o:p></p><p = > class=3DMsoNormal>ns4.msft.net. = > 170080 IN = > A 208.76.45.53<o:p></o:p></p><p = > class=3DMsoNormal>ns1a.o365filtering.com. 311 = > IN A = > 157.56.110.11<o:p></o:p></p><p class=3DMsoNormal>ns2a.o365filtering.com. = > 311 IN = > A 157.56.116.52<o:p></o:p></p><p = > class=3DMsoNormal>ns4a.o365filtering.com. 311 = > IN A = > 157.55.133.11<o:p></o:p></p><p = > class=3DMsoNormal>ns1.msft.net. = > 289 = > IN AAAA = > 2620:0:30::53<o:p></o:p></p><p = > class=3DMsoNormal>ns2.msft.net. = > 170080 IN = > AAAA 2620:0:32::53<o:p></o:p></p><p = > class=3DMsoNormal>ns3.msft.net. = > 289 = > IN AAAA = > 2620:0:34::53<o:p></o:p></p><p = > class=3DMsoNormal>ns4.msft.net. = > 170080 IN = > AAAA 2620:0:37::53<o:p></o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>;; Query = > time: 0 msec<o:p></o:p></p><p class=3DMsoNormal>;; SERVER: = > 127.0.0.1#53(127.0.0.1)<o:p></o:p></p><p class=3DMsoNormal>;; WHEN: Fri = > Oct 7 07:57:41 2016<o:p></o:p></p><p class=3DMsoNormal><b>;; MSG = > SIZE rcvd: 770<o:p></o:p></b></p><p = > class=3DMsoNormal><o:p> </o:p></p><p = > class=3DMsoNormal><o:p> </o:p></p><p = > class=3DMsoNormal>Regards<o:p></o:p></p><p = > class=3DMsoNormal>Daniel<o:p></o:p></p></div></body></html>= > > --Boundary_(ID_nuHOPUgS9zdNCKFxG6Fb0Q)-- > > --===============1342579734352573925== > Content-Type: text/plain; charset="us-ascii" > MIME-Version: 1.0 > Content-Transfer-Encoding: 7bit > Content-Disposition: inline > > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users > --===============1342579734352573925==-- -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
