Hi all,
The dns resolvers of ETH Zürich are not able to resolve names within the domain sgsstudentbostader.se. As far as I can see, it is a connection Problem. The Problem is located on the remote site. I would like to contact the operator of the domain sgsstudentbostader.se.
I tried the email-addr from the SOA record, without success.
Does anybody on the list know if an e-mail list similar to swinog exists in Sweden? Google was not able to answer this question?
Kind Regards Daniel Ambauen
------------------------------------------------------------------------ Daniel Ambauen Network Applications ETH Zentrum WET B 1 mailto:daniel.ambauen@id.ethz.ch Weinbergstrasse 43 tel : +41 44 632 35 48 CH-8092 Zürich ------------------------------------------------------------------------
On 2013-05-03 13:11 , Ambauen Daniel wrote:
Hi all,
The dns resolvers of ETH Zürich are not able to resolve names within the domain sgsstudentbostader.se. As far as I can see, it is a connection Problem. The Problem is located on the remote site.
Where is your 'dig' output? Any sane operator would request and/or provide that.
sgsstudentbostader.se. 300 IN A 46.239.65.2 sgsstudentbostader.se. 300 IN NS ns2.sgsit.se. sgsstudentbostader.se. 300 IN NS ns1.sgsit.se. ;; Received 140 bytes from 46.239.64.98#53(46.239.64.98) in 33 ms
jeroen@noc:~$ dig +short @ns1.sgsit.se. www.sgsstudentbostader.se. any 46.239.65.68
Put that in /etc/hosts for a short time and you can at least browse their site.
Of course if you can't reach their prefix (46.239.64.34/24) you are out of luck, and that would also explain why you can't resolve anything, some silly people still think it is smart to have all eggs in one basket^Wprefix.
(and if you would have provided the dig output and related traceroutes for destinations that could have been unreachable, you would have had your answer already what was wrong ;)
I would like to contact the operator of the domain sgsstudentbostader.se.
I tried the email-addr from the SOA record, without success.
Typically those are not read or too heavily spammed causing them to be not read unfortunately.
Does anybody on the list know if an e-mail list similar to swinog exists in Sweden?
You are looking for https://www.iis.se/
http://www.sgsstudentbostader.se/se/kontakt/bostadsformedling notes: 8<---------------- Besöks- och postadress: Kaserntorget 11, plan 2 411 18 GÖTEBORG
E-post: bf@sgsstudentbostader.se
Tel vxl 031-333 63 00 Fax 031-333 63 01 ---------------->8
Google was not able to answer this question?
Likely as you are asking the wrong question ;)
Greets, Jeroen
Hi Jeroen
Thanks for your answer.
Where is your 'dig' output? Any sane operator would request and/or provide that.
Sorry, I thought the details a not important for the list, because the problem is on the remote site.
Here they are:
Our dns resolvers are unable to reach the authoritative name server for sgsstudentbostader.se.
[ambauen@id-kom-rz-dock-2-34 ~]$ dig +short +norec @46.239.64.34 sgsstudentbostader.se ;; connection timed out; no servers could be reached
[ambauen@id-kom-rz-dock-2-34 ~]$ dig +short +norec @46.239.64.98 sgsstudentbostader.se ;; connection timed out; no servers could be reached
Our resolvers are using 129.132.128.142 and 129.132.128.206 as query source address. Our IP Network range is 129.132.0.0/16.
From cern http://lg.cern.ch the IP 46.239.64.34 is reachable.
Type Control-c to abort Sending DNS Query to 192.91.245.85
Type Control-c to abort Tracing the route to IP node ns1.sgsit.se(46.239.64.34) from 1 to 30 hops
1 5 ms <1 ms <1 ms e513-a-rbrxl-2-ne0.cern.ch [192.65.184.38] 2 6 ms <1 ms <1 ms 194.42.90.41 3 26 ms <1 ms <1 ms ae0-0.gva-004-score-1-re0.interoute.net [84.233.208.17] MPLS Label=549140 Exp=0 TTL=1 S=1 4 15 ms <1 ms <1 ms ae3-0.par-gar-score-2-re1.interoute.net [84.233.208.25] MPLS Label=762608 Exp=0 TTL=1 S=1 5 13 ms <1 ms <1 ms ae0-0.par-gar-score-1-re0.interoute.net [212.23.42.25] MPLS Label=732133 Exp=0 TTL=1 S=1 6 23 ms <1 ms <1 ms ae1-0.lon-004-score-1-re0.interoute.net [212.23.42.22] 7 15 ms <1 ms <1 ms 195.66.224.243 8 57 ms <1 ms <1 ms te3-1-r72.cr0-r74.shg5-got.no.p80.net [82.96.1.53] 9 65 ms <1 ms <1 ms 94.136.70.42 10 55 ms <1 ms <1 ms ns4.gsix.se [46.239.64.34]
Traceroute from our gatway to SWITCH the IP 46.239.64.34 is not reachable.
rou-gw-rz# traceroute 46.239.64.34
traceroute to 46.239.64.34 (46.239.64.34), 30 hops max, 40 byte packets
1 swiez2.ethz.ch (192.33.92.11) (AS 65401) 0.763 ms 0.629 ms 0.632 ms 2 swiIX2-10GE-3-1.switch.ch (130.59.36.250) (AS 559) 0.623 ms 0.585 ms 0.754 ms 3 i79tix-025-ten9-1.bb.ip-plus.net (193.5.122.18) (AS 559) 0.738 ms 0.76 ms 0.778 ms 4 80.157.129.201 (80.157.129.201) (AS 559) 18.704 ms 4.444 ms 3.948 ms 5 par-sa3-i.PAR.FR.NET.DTAG.DE (62.154.5.109) (AS 559) 18.028 ms 21.723 ms 23.985 ms 6 prs-b7-link.telia.net (213.248.96.209) (AS 559) 11.603 ms 11.652 ms 11.708 ms 7 prs-bb2-link.telia.net (213.155.134.230) (AS 559) 11.61 ms prs-bb1-link.telia.net (213.155.134.220) (AS 559) 12.003 ms prs-bb2-link.telia.net (213.155.134.228) (AS 559) 11.604 ms 8 ffm-bb1-link.telia.net (213.155.132.157) (AS 559) 17.912 ms ffm-bb1-link.telia.net (80.91.245.100) (AS 559) 17.885 ms ffm-bb2-link.telia.net (213.155.132.155) (AS 559) 17.605 ms 9 hbg-bb1-link.telia.net (213.155.135.227) (AS 559) 26.35 ms hbg-bb1-link.telia.net (213.155.135.149) (AS 559) 26.199 ms hbg-bb2-link.telia.net (80.91.245.118) (AS 559) 27.01 ms 10 kbn-bb1-link.telia.net (80.91.249.204) (AS 559) 31.835 ms kbn-bb1-link.telia.net (80.91.247.225) (AS 559) 30.927 ms kbn-bb2-link.telia.net (213.155.134.204) (AS 559) 32.686 ms 11 kbn-b3-link.telia.net (213.155.135.173) (AS 559) 33 ms kbn-b3-link.telia.net (80.91.252.23) (AS 559) 30.959 ms kbn-b3-link.telia.net (80.91.249.51) (AS 559) 34.052 ms 12 availo-ic-151342-kbn-b3.c.telia.net (80.239.128.170) (AS 559) 33.115 ms 33.063 ms 32.829 ms 13 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) (AS 559) 36.462 ms 36.371 ms 44.196 ms 14 94.136.70.42 (94.136.70.42) (AS 559) 36.686 ms 35.728 ms 36.002 ms 15 * * *
But the last hop 94.136.70.42 before 46.239.64.34 is reachable from our side.
rou-gw-rz# ping 94.136.70.42
PING 94.136.70.42 (94.136.70.42): 56 data bytes 64 bytes from 94.136.70.42: icmp_seq=0 ttl=244 time=46.972 ms 64 bytes from 94.136.70.42: icmp_seq=1 ttl=244 time=46.887 ms 64 bytes from 94.136.70.42: icmp_seq=2 ttl=244 time=46.943 ms 64 bytes from 94.136.70.42: icmp_seq=3 ttl=244 time=46.005 ms 64 bytes from 94.136.70.42: icmp_seq=4 ttl=244 time=47.357 ms
--- 94.136.70.42 ping statistics ---
5 packets transmitted, 5 packets received, 0.00% packet loss
round-trip min/avg/max = 46.005/46.832/47.357 ms
The entire subnet 46.239.64.34/24 is not reachable from my site.
Google was not able to answer this question?
Likely as you are asking the wrong question ;)
Some time it is difficult to ask the right questions ;-)
Regards Daniel
-----Original Message----- From: Jeroen Massar [mailto:jeroen@massar.ch] Sent: Friday, May 3, 2013 2:43 PM To: Ambauen Daniel Cc: 'swinog@lists.swinog.ch' Subject: Re: [swinog] sweden network operators group?
On 2013-05-03 13:11 , Ambauen Daniel wrote:
Hi all,
The dns resolvers of ETH Zürich are not able to resolve names within the domain sgsstudentbostader.se. As far as I can see, it is a connection Problem. The Problem is located on the remote site.
Where is your 'dig' output? Any sane operator would request and/or provide that.
sgsstudentbostader.se. 300 IN A 46.239.65.2 sgsstudentbostader.se. 300 IN NS ns2.sgsit.se. sgsstudentbostader.se. 300 IN NS ns1.sgsit.se. ;; Received 140 bytes from 46.239.64.98#53(46.239.64.98) in 33 ms
jeroen@noc:~$ dig +short @ns1.sgsit.se. www.sgsstudentbostader.se. any 46.239.65.68
Put that in /etc/hosts for a short time and you can at least browse their site.
Of course if you can't reach their prefix (46.239.64.34/24) you are out of luck, and that would also explain why you can't resolve anything, some silly people still think it is smart to have all eggs in one basket^Wprefix.
(and if you would have provided the dig output and related traceroutes for destinations that could have been unreachable, you would have had your answer already what was wrong ;)
I would like to contact the operator of the domain sgsstudentbostader.se.
I tried the email-addr from the SOA record, without success.
Typically those are not read or too heavily spammed causing them to be not read unfortunately.
Does anybody on the list know if an e-mail list similar to swinog exists in Sweden?
You are looking for https://www.iis.se/
http://www.sgsstudentbostader.se/se/kontakt/bostadsformedling notes: 8<---------------- Besöks- och postadress: Kaserntorget 11, plan 2 411 18 GÖTEBORG
E-post: bf@sgsstudentbostader.se
Tel vxl 031-333 63 00 Fax 031-333 63 01 ---------------->8
Google was not able to answer this question?
Likely as you are asking the wrong question ;)
Greets, Jeroen
On 2013-05-03 15:49 , Ambauen Daniel wrote: [..]
Traceroute from our gatway to SWITCH the IP 46.239.64.34 is not reachable.
And thus likely a transit issue, not really a DNS issue (though having both DNS servers in the same /24 is ... of course).
[..]
12 availo-ic-151342-kbn-b3.c.telia.net (80.239.128.170) (AS 559) 33.115 ms 33.063 ms 32.829 ms 13 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) (AS 559) 36.462 ms 36.371 ms 44.196 ms 14 94.136.70.42 (94.136.70.42) (AS 559) 36.686 ms 35.728 ms 36.002 ms 15 * * *
But the last hop 94.136.70.42 before 46.239.64.34 is reachable from our side.
Which likely means that they cannot reach your prefix, as you do have a route towards them. (though that is likely, filtering and other many problems can also be the case of course)
[..]
The entire subnet 46.239.64.34/24 is not reachable from my site.
And hence why neither DNS or anything else that is hosted on it works.
Best to contact SWITCH, who are effectively your transit, and let them contact Telia and then likely P80 who can figure out the next step where it goes wrong.
Greets, Jeroen
*Router: swiCE2.switch.ch* *Command: show ip bgp 46.239.64.0/24* *% Network not in table* * * *Router: *swiCE2.switch.ch *Command: *show ip bgp 46.239.64.0/21 BGP routing table entry for 46.239.64.0/21, version 21580932 Paths: (1 available, no best path) Multipath: eBGP Not advertised to any peer 3356 3549 16150 2840, (received-only) 213.242.73.73 from 213.242.73.73 (4.69.187.34) Origin IGP, metric 0, localpref 100, valid, external Community: 3356:2 3356:22 3356:86 3356:502 3356:666 3356:2066 3549:350 3549:4773 3549:31208 16150:80 16150:40752 16150:63392 * * *Router:* swiCE2.switch.ch *Command:* ping 46.239.64.34
Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 46.239.64.34, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 40/42/44 ms
*Router:* swiCE2.switch.ch *Command:* trace 46.239.64.34
Type escape sequence to abort. Tracing the route to ns4.gsix.se (46.239.64.34) VRF info: (vrf in name/id, vrf out name/id) 1 te-3-4.car1.Geneva1.Level3.net (213.242.73.73) 0 msec 0 msec 0 msec 2 ae-5-5.car1.Lyon1.Level3.net (4.69.137.82) [MPLS: Label 709 Exp 0] 12 msec 8 msec 8 msec 3 ae-9-9.ebr2.Paris1.Level3.net (4.69.134.50) [MPLS: Label 1758 Exp 0] 12 msec 12 msec 8 msec 4 ae-72-72.csw2.Paris1.Level3.net (4.69.161.98) [MPLS: Label 1720 Exp 0] 8 msec ae-62-62.csw1.Paris1.Level3.net (4.69.161.94) [MPLS: Label 1744 Exp 0] 12 msec ae-92-92.csw4.Paris1.Level3.net (4.69.161.106) [MPLS: Label 1574 Exp 0] 8 msec 5 4.69.168.7 12 msec 4.69.168.199 48 msec 4.69.168.71 40 msec 6 global-crossing-xe-level3.paris1.level3.net (4.68.127.98) 12 msec 8 msec 12 msec 7 RIX-TELECOM-AB.TenGigabitEthernet7-3.ar3.CPH1.gblx.net (64.211.111.154) 24 msec 28 msec 28 msec 8 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) 32 msec 28 msec 32 msec 9 94.136.70.42 32 msec 32 msec 32 msec 10 * * * 11 * * * 12 * * * 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 Timed out waiting for data: write error: filehandle isn't open
[root@uc ~]# traceroute 46.239.64.34 traceroute to 46.239.64.34 (46.239.64.34), 30 hops max, 60 byte packets 1 ve24.ccr01.zrh01.neocarrier.net (217.146.49.1) 2.690 ms 2.739 ms 2.796 ms 2 ae0.419.ar3.ZRH1.gblx.net (64.214.129.5) 0.476 ms 0.526 ms 0.607 ms 3 ae4.scr3.FRA4.gblx.net (67.16.146.10) 5.192 ms ae1.scr4.FRA4.gblx.net (67.16.145.234) 5.191 ms 38.520 ms 4 po1.ar3.CPH1.gblx.net (67.17.105.242) 32.030 ms 32.045 ms po3.ar3.CPH1.gblx.net (67.17.105.246) 32.097 ms 5 RIX-TELECOM-AB.TenGigabitEthernet7-3.ar3.CPH1.gblx.net (64.211.111.154) 33.665 ms 33.660 ms 33.896 ms 6 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) 32.421 ms 32.461 ms 32.421 ms 7 94.136.70.42 (94.136.70.42) 37.392 ms 37.372 ms 37.432 ms 8 * * * 9 * * * 10 * * * 11 * * * 12 * * * 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 * * * 19 * * * 20 * * * 21 * * * 22 * * * 23 * * * 24 * * * 25 * * * 26 * * * 27 * * * 28 * * * 29 * * * 30 * * *
traceroute to 46.239.64.34 (46.239.64.34), 30 hops max, 60 byte packets 1 ve24.ccr01.zrh01.neocarrier.net (217.146.49.1) 0.297 ms 0.390 ms 0.475 ms 2 ae0.419.ar3.ZRH1.gblx.net (64.214.129.5) 0.467 ms 0.538 ms 0.621 ms 3 ae1.scr4.FRA4.gblx.net (67.16.145.234) 5.192 ms ae4.scr3.FRA4.gblx.net (67.16.146.10) 5.183 ms 5.190 ms 4 po3.ar3.CPH1.gblx.net (67.17.105.246) 32.021 ms po1.ar3.CPH1.gblx.net (67.17.105.242) 32.089 ms po3.ar3.CPH1.gblx.net (67.17.105.246) 32.041 ms 5 RIX-TELECOM-AB.TenGigabitEthernet7-3.ar3.CPH1.gblx.net (64.211.111.154) 33.674 ms 33.769 ms 33.757 ms 6 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) 32.482 ms 32.495 ms 32.468 ms 7 94.136.70.42 (94.136.70.42) 176.607 ms 168.731 ms 168.715 ms 8 ns1.sgsit.se (46.239.64.34) 43.376 ms 43.370 ms 43.397 ms
My take..
The network 46.239.64.0/24 is not found in BGP routing table, but 46.239.64.0/21 is there, obvious nothing silly here.
The target responds from switch to ping, which means each side can talk to each other (http://www.switch.ch/network/tools/lookingglass/).
Traceroute seems quite complete until penultimate device using standard UDP traceroute, but works using ICMP works until target..
Probably a misinterpreted traceroute result..
On 3 May 2013 16:01, Jeroen Massar jeroen@massar.ch wrote:
On 2013-05-03 15:49 , Ambauen Daniel wrote: [..]
Traceroute from our gatway to SWITCH the IP 46.239.64.34 is not
reachable.
And thus likely a transit issue, not really a DNS issue (though having both DNS servers in the same /24 is ... of course).
[..]
12 availo-ic-151342-kbn-b3.c.telia.net (80.239.128.170) (AS 559)
33.115 ms 33.063 ms 32.829 ms
13 te3-1-r72.cr0-r74.shg5-got.no.p80.net (82.96.1.53) (AS 559) 36.462
ms 36.371 ms 44.196 ms
14 94.136.70.42 (94.136.70.42) (AS 559) 36.686 ms 35.728 ms 36.002 ms 15 * * *
But the last hop 94.136.70.42 before 46.239.64.34 is reachable from our
side.
Which likely means that they cannot reach your prefix, as you do have a route towards them. (though that is likely, filtering and other many problems can also be the case of course)
[..]
The entire subnet 46.239.64.34/24 is not reachable from my site.
And hence why neither DNS or anything else that is hosted on it works.
Best to contact SWITCH, who are effectively your transit, and let them contact Telia and then likely P80 who can figure out the next step where it goes wrong.
Greets, Jeroen
swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
Easy question, easy reply:
You're looking for the NORDnog: http://www.lsoft.com/scripts/wl.exe?SL1=NORDNOG&H=SEGATE.SUNET.SE
Cheers !
-----Original Message----- From: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch] On Behalf Of Ambauen Daniel Sent: Freitag, 3. Mai 2013 13:12 To: 'swinog@lists.swinog.ch' Subject: [swinog] sweden network operators group?
Hi all,
The dns resolvers of ETH Zürich are not able to resolve names within the domain sgsstudentbostader.se. As far as I can see, it is a connection Problem. The Problem is located on the remote site. I would like to contact the operator of the domain sgsstudentbostader.se.
I tried the email-addr from the SOA record, without success.
Does anybody on the list know if an e-mail list similar to swinog exists in Sweden? Google was not able to answer this question?
Kind Regards Daniel Ambauen
------------------------------------------------------------------------ Daniel Ambauen Network Applications ETH Zentrum WET B 1 mailto:daniel.ambauen@id.ethz.ch Weinbergstrasse 43 tel : +41 44 632 35 48 CH-8092 Zürich ------------------------------------------------------------------------
_______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
"This e-mail, any associated files and the information contained in them are confidential and is intended for the addressee(s) only. If you have received this message in error please notify the originator and delete the email immediately. The unauthorised use, disclosure, copying or alteration of this message is strictly forbidden. E-mails to and from the company are monitored for operational reasons and in accordance with lawful business practices. Any opinions expressed are those of the individual and do not necessarily represent the views of the company. The company does not conclude contracts by email and all negotiations are subject to contract. We make every effort to maintain our network free from computer viruses but accept no responsibility for any viruses which might be transferred by this e-mail."
Hi Daniele
Thank you very much for your answer.
Cheers
-----Original Message----- From: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch] On Behalf Of Guazzoni Daniele, CH Sent: Friday, May 3, 2013 3:14 PM To: 'swinog@lists.swinog.ch' Subject: Re: [swinog] sweden network operators group?
Easy question, easy reply:
You're looking for the NORDnog: http://www.lsoft.com/scripts/wl.exe?SL1=NORDNOG&H=SEGATE.SUNET.SE
Cheers !
-----Original Message----- From: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch] On Behalf Of Ambauen Daniel Sent: Freitag, 3. Mai 2013 13:12 To: 'swinog@lists.swinog.ch' Subject: [swinog] sweden network operators group?
Hi all,
The dns resolvers of ETH Zürich are not able to resolve names within the domain sgsstudentbostader.se. As far as I can see, it is a connection Problem. The Problem is located on the remote site. I would like to contact the operator of the domain sgsstudentbostader.se.
I tried the email-addr from the SOA record, without success.
Does anybody on the list know if an e-mail list similar to swinog exists in Sweden? Google was not able to answer this question?
Kind Regards Daniel Ambauen
------------------------------------------------------------------------ Daniel Ambauen Network Applications ETH Zentrum WET B 1 mailto:daniel.ambauen@id.ethz.ch Weinbergstrasse 43 tel : +41 44 632 35 48 CH-8092 Zürich ------------------------------------------------------------------------
_______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
"This e-mail, any associated files and the information contained in them are confidential and is intended for the addressee(s) only. If you have received this message in error please notify the originator and delete the email immediately. The unauthorised use, disclosure, copying or alteration of this message is strictly forbidden. E-mails to and from the company are monitored for operational reasons and in accordance with lawful business practices. Any opinions expressed are those of the individual and do not necessarily represent the views of the company. The company does not conclude contracts by email and all negotiations are subject to contract. We make every effort to maintain our network free from computer viruses but accept no responsibility for any viruses which might be transferred by this e-mail."
_______________________________________________ swinog mailing list swinog@lists.swinog.ch http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
-
Ambauen Daniel -
Gregory Agerba -
Guazzoni Daniele, CH -
Jeroen Massar