[Fiware-creatifi-coaching] [CreatiFI Barcelona/Helsinki Hub] General Support #456: Filab instance Reverse DNS Lookup problems

[Lino Valdivia]

 Issue #456 has been reported by Toni Laine.
------------------------------
General Support #456: Filab instance Reverse DNS Lookup problems
<http://techsupport.creatifi.eu/issues/456>

   - Author: Toni Laine
   - Status: New
   - Priority: High
   - Assignee: Barcelona Tech Support (Spain&Finland)
   - Category: Helsinki Hub (Finland)
   - Support Type: FIWARE Lab Infrastructure
   - FIWARE Jira ID:
   - FIWARE Lab Region: Spain2

Hello,

Is it possible to get DNS properly working on Filab cloud instance? I
installed the instance from a CEP image. It seems the normal DNS checks all
return errors in my case.

$ host 130.206.118.112
Host 112.118.206.130.in-addr.arpa. not found: 3(NXDOMAIN)
$ nslookup 130.206.118.112
Server: 8.8.8.8
Address: 8.8.8.8#53

   - server can't find 112.118.206.130.in-addr.arpa.: NXDOMAIN

$ dig x 130.206.118.112
; <<>> DiG 9.8.2rc1-RedHat-9.8.2-0.10.rc1.el6_3.5 <<>> -x 130.206.118.112
;; global options: +cmd
;; Got answer:
;; ->>HEADER<< opcode: QUERY, status: NXDOMAIN, id: 44748
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;112.118.206.130.in-addr.arpa. IN PTR
;; AUTHORITY SECTION:
206.130.in-addr.arpa. 1799 IN SOA sun.rediris.es. hostmaster.rediris.es.
2015121600 14400 7200 2592000 7200
;; Query time: 72 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Thu Jun 9 09:56:57 2016
;; MSG SIZE rcvd: 107

The /etc/hosts/ -file seemed to have some HTML page not found -errors in
it, which would point to the installation could not properly set up all
hosts for the cluster? Could you please provide hot the hosts-file should
look after proper installation of CentOS instanse in Filab. Here is the
hosts-file after I removed the access HTML. Unfortunately I do not have the
errors anymore, but they seemed like normal response you get when trying to
wget or curl into a server that cannot be connected.

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
10.0.6.48 newcep.novalocal
192.168.251.33 eventmore-cep.novalocal

Thanks for your help!
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