[OpenSIPS-Users] Binary replication

[Liviu Chircu]

You should be able to solve that problem with:
echo 1 > /proc/sys/net/ipv4/ip_nonlocal_bind

Liviu Chircu
OpenSIPS Developer
http://www.opensips-solutions.com

On 18.02.2015 19:20, Schneur Rosenberg wrote:
> Here is the error, I see it checking the ip address against the 
> listening ip address, and of course it does not match, if I add the 
> other ip address as a listening address opensips wont start.
>
>
>
> Feb 18 17:17:10 sipsvr6 /sbin/opensips[26864]: 
> ERROR:usrloc:receive_ucontact_update: non-local socket 
> <udp:45.45.99.95:5060 <http://45.45.99.95:5060>>
> Feb 18 17:17:10 sipsvr6 /sbin/opensips[26864]: 
> ERROR:usrloc:receive_ucontact_update: failed to process replication 
> event. dom: 'location', aor: 'solhome5 at sipsvr5.myserver.com 
> <mailto:solhome5 at sipsvr5.myserver.com>'
> Feb 18 17:17:10 sipsvr6 /sbin/opensips[26864]: 
> ERROR:usrloc:receive_binary_packet: failed to process a binary packet!
>
>
> On Wed, Feb 18, 2015 at 5:02 PM, Liviu Chircu <liviu at opensips.org 
> <mailto:liviu at opensips.org>> wrote:
>
>     Hello Schneur,
>
>     1) If REGISTER request replication properly works (same messages
>     received on both sides), then the backup should not delete
>     contacts like you are mentioning.
>     2) Yes, it will. You can disable this behaviour with
>     "skip_replicated_db_ops" [1]
>     3) Any specific ERRORs in the logfile? Please open a GitHub ticket
>     for any obvious issues [2]
>     4) Only integrity checking. But that can be bypassed by a
>     potential attacker. Immediate solutions are the use of private
>     interfaces and/or iptables rules.
>     5) Yes, replication is only to be used with floating IPs.
>     Regarding the distributed redundant setup, a big discussion was
>     started in 2013, yet did not really come to a final conclusion [3]
>
>     [1]:
>     http://www.opensips.org/html/docs/modules/2.1.x/usrloc.html#skip_replicated_db_ops
>     [2]: https://github.com/OpenSIPS/opensips/issues
>     [3]: http://opensips.org/pipermail/users/2013-April/025204.html
>
>     Best regards,
>
>     Liviu Chircu
>     OpenSIPS Developer
>     http://www.opensips-solutions.com
>
>     On 18.02.2015 12:19, Schneur Rosenberg wrote:
>>     I have a question regarding binary replication, I was using
>>     OpenSIPS 1.7 until now, my backup was passive, because when they
>>     were all up at the same time, the usrloc timer from the backup
>>     kept on removing users from the database, even though I'm using
>>     mode 2, I still rely on the DB for some actions, I recently
>>     watched Vlad Paiu video presentation on Binary Interface
>>     replication and he says that he advises to leave the backup open
>>     too, so I built 2 test servers with OpenSIPS 1.11 and I have a
>>     few questions.
>>
>>     1) will this solve the issue of the usrloc timer deleting records?
>>     2) will it also update the backups database if I use mode 2? this
>>     way I dont need to replicate the db's, i will have
>>     2 separate db's and have each server update its own db, if it
>>     does this will also solve problem 1.
>>     3) I tested the bin replication, when doing a ngrep I see the
>>     packet coming in on the backup when a new user registers, but
>>     when doing a "opensipsctl ul show"  it only shows the contact
>>     line and nothing else and it disappears completely after a few
>>     moments and it does not update the db.
>>     4) Does it have a built in security mechanism besides manually
>>     doing it with iptables?
>>     5) It seems like this is mainly used with a floating ip, I have
>>     servers on the same network using floating ip, I also have
>>     servers on different networks using failover dns, how will it
>>     affect my redundancy, I assume the backup server wont be able to
>>     reach the client before the client does a new DNS lookup and re
>>     registers, because the clients NAT wont allow it through, is that
>>     correct? and is there a solution for that?
>>
>>     thanks in advance
>>     S. Rosenberg
>>
>>
>>     _______________________________________________
>>     Users mailing list
>>     Users at lists.opensips.org  <mailto:Users at lists.opensips.org>
>>     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>     _______________________________________________
>     Users mailing list
>     Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opensips.org/pipermail/users/attachments/20150218/436b04ab/attachment-0001.htm>