Unspecified error DNS query
Mark Andrews
marka at isc.org
Fri Oct 7 13:26:52 UTC 2016
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 at 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
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> 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 at 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)--
>
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> MIME-Version: 1.0
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> Content-Disposition: inline
>
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--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: marka at isc.org
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