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Website blocked

chrisboote
Newbie
Posts: 9
Thanks: 1
Registered: 4 weeks ago

Re: Website blocked

Added to my hosts file (eventually! Win10 hates users being in charge of their own PC) but still doesn't work

Plusnet Help Team
Plusnet Help Team
Posts: 16,276
Thanks: 4,998
Fixes: 845
Registered: ‎21-04-2017

Re: Website blocked

Thanks for the update, I've just tested this on my home connection and I'm unable to load the site and I've got a static IP, the IP of the site 52.168.148.33 works fine though. @Kelly let me know if you need me to do any testing too. Smiley

If this post resolved your issue please click the 'This fixed my problem' button
 Anoush Mortazavi
 Plusnet Help Team
chrisboote
Newbie
Posts: 9
Thanks: 1
Registered: 4 weeks ago

Re: Website blocked

Any further testing you want me to try?

Superuser
Superuser
Posts: 10,049
Thanks: 1,361
Fixes: 73
Registered: ‎06-04-2007

Re: Website blocked

The site loads for me at home where I have a static IP in the range 212.159.x.x. However nslookup results in

C:\nslookup wiki.ispace.org 212.159.6.10
Server:  cdns02.plus.net
Address:  212.159.6.10

Non-authoritative answer:
Name:    ispace.org
Address:  72.52.178.23
Aliases:  wiki.ispace.org

which is a makedly different IP from the  52.168.148.33 mentioned in message #13 https://community.plus.net/t5/Everything-else/Website-blocked/m-p/1704363#M23187

David
chrisboote
Newbie
Posts: 9
Thanks: 1
Registered: 4 weeks ago

Re: Website blocked

So does that imply a DNS issue?

Plusnet Help Team
Plusnet Help Team
Posts: 1,461
Thanks: 140
Fixes: 63
Registered: ‎06-08-2018

Re: Website blocked

Hey @chrisboote,

To be honest I'm not sure what the next steps with this would be, it seems @Kelly was working on something behind the scenes or may have been investigating something. Might be worth awaiting his response.

 

Thanks.

If this post resolved your issue please click the 'This fixed my problem' button
 Maddy S
 Plusnet Help Team


blu3andp1p
Hooked
Posts: 9
Thanks: 1
Registered: 3 weeks ago

Re: Website blocked

I can't visit the page either, it's not blocked though.

 

Looks like it might be something todo with their DNS server, their aname and nameserver records seem to be fudged.

 

https://dnsmap.io/#A/www.wiki.lspace.org

Highlighted
Community Gaffer
Community Gaffer
Posts: 5,410
Thanks: 740
Fixes: 7
Registered: ‎04-04-2007

Re: Website blocked

Seems like I managed to delete my reply when I deleted what I thought was a double post Cheesy

I asked one of our engineers to have a look and they think there is something wrong with their DNS records:

Looks to be a DNSSEC configuration problem with the authoritive DNS server for this domain. This means that our servers aren’t able to validate the chain of security from the authoritive servers upwards. At a guess this is intermittent due to older cached records which may well be the problem as some may be correct, and some not.

Testing it from one of our cachedns servers fails locally and against the nameservers Jon mentions, giving a SERVFAIL response:

root@cachedns07:~# dig wiki.lspace.org +cmd

; <<>> DiG 9.9.5-9+deb8u18-Debian <<>> wiki.lspace.org +cmd

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 74

;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

 

root@cachedns07:~# dig wiki.lspace.org +nocmd @dns1.registrar-servers.com

; <<>> DiG 9.9.5-9+deb8u18-Debian <<>> wiki.lspace.org +nocmd @dns1.registrar-servers.com

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 20411

;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

 

Running the check with an additional flag to disable DNSSEC checking resolves locally, but still fails against the others:

 

root@cachedns07:~# dig wiki.lspace.org +nocmd +cd @dns1.registrar-servers.com

; <<>> DiG 9.9.5-9+deb8u18-Debian <<>> wiki.lspace.org +nocmd +cd @dns1.registrar-servers.com

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 65506

;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

 

root@cachedns07:~# dig wiki.lspace.org +nocmd +cd

; <<>> DiG 9.9.5-9+deb8u18-Debian <<>> wiki.lspace.org +nocmd +cd

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36985

;; flags: qr rd ra cd; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 1

 

;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 4096

;; QUESTION SECTION:

;wiki.lspace.org.              IN          A

 

;; ANSWER SECTION:

wiki.lspace.org.  1522     IN          CNAME wiki.osiris-web.com.

wiki.osiris-web.com.       1547     IN          A              52.168.148.33

 

;; AUTHORITY SECTION:

osiris-web.com.               1548     IN          NS              dns1.registrar-servers.com.

osiris-web.com.               1548     IN          NS              dns2.registrar-servers.com.

 

Also confirmed this against the advertised IP’s for our DNS servers to make sure, with the same response received:

 

root@server52752:~# dig wiki.lspace.org +nocmd +cd @212.159.13.49

 

; <<>> DiG 9.8.4-rpz2+rl005.12-P1 <<>> wiki.lspace.org +nocmd +cd @212.159.13.49

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 19297

;; flags: qr rd ra cd; QUERY: 1, ANSWER: 2, AUTHORITY: 2, ADDITIONAL: 0

 

;; QUESTION SECTION:

;wiki.lspace.org.              IN          A

 

;; ANSWER SECTION:

wiki.lspace.org.  1460     IN          CNAME wiki.osiris-web.com.

wiki.osiris-web.com.       1485     IN          A              52.168.148.33

 

;; AUTHORITY SECTION:

osiris-web.com.               1486     IN          NS              dns1.registrar-servers.com.

osiris-web.com.               1486     IN          NS              dns2.registrar-servers.com.

Kelly Dorset
Broadband Service Manager
chrisboote
Newbie
Posts: 9
Thanks: 1
Registered: 4 weeks ago

Re: Website blocked

But I can open it when I'm accessing with 4G, or from work

 

Only fails when opening it from PlusNet broadband

chrisboote
Newbie
Posts: 9
Thanks: 1
Registered: 4 weeks ago

Re: Website blocked

Anything I can do? Or pass on to site owners?