[Kamailio-Users] Kamalio 1.4.2 rev_dns=no

[Michael Young]

Reopening an old issue from May -- I installed 1.4.2 from SVN and have the
reverse DNS lookups going again, even though dns=no and rev_dns=no.

Was there a syntax change in the config file?

Daniel, you were correct that "somewhere in the script you do an IP
comparison (by src_ip or so) and you have the IP address in between quotes"
-- I have one carrier who insists on sending ";npdi=yes" in the user portion
of the URI:

INVITE sip:+1303XXXXXXXX;npdi=yes at 4.X.X.X:5060

And that blows up ENUM lookups (or at least it did in version 1.3). So I
have in my config a block like this:

if (src_ip=~".*1\.2\.3\.") {
       strip_tail(9);
       xlog("L_INFO", "NOTICE: Stripped npdi because carrier X is stupid:
new URI $ru\n");
}

Maybe there is a better way to do this so I am not searching by src_ip?

Michael Young
(IP addresses have been changed\munged to protect the guilty)


-----Original Message-----
From: Daniel-Constantin Mierla [mailto:miconda at gmail.com] 
Sent: Sunday, May 18, 2008 4:08 PM
To: Michael Young
Cc: users at lists.openser.org
Subject: Re: [OpenSER-Users] Openser 1.3.2 rev_dns=no

Hello,

please try the attached patch (is for devel but should apply on 1.3.2, if
no, let me know and I send you another). Similar issue was reported to me
some time ago, started to investigate but at some point I forgot about. I
think you face the same case: somewhere in the script you do an IP
comparison (by src_ip or so) and you have the IP address in between quotes.
The patch fixed the reverse dns in this case if rev_dns=no. I will look more
into it to find a better solution -- detecting if the value is an IP address
and avoid DNS lookup, a.s.o, for IP comparisons.

Let me know the results.

Cheers,
Daniel


On 05/18/08 22:12, Michael Young wrote:
> Here is why I ask:
>
> [root at proxy2 openser]# netstat -su
> Udp:
>     159293 packets received
>     2016 packets to unknown port received.
>     153899 packet receive errors
>     185342 packets sent
>
> On my proxies, as traffic levels increase, I start getting udp errors, 
> which I think is pretty much a udp buffer overflow. Once it overflows, 
> that proxy is toast until traffic levels die down. I have a pretty 
> basic config, but I can't seem to handle more than 4 or 5 new calls 
> per second. I would expect to be able to do a lot more than that. So I 
> was trying to make sure that no unnecessary udp traffic was going in or
out.
>
> The server has two Dual Core Opteron processors, 4 Gb of RAM, running 
> CentOS
> 5 x86_64.
>
> Any suggestions are appreciated... and I'll happily pay for consulting 
> if someone wants to look into it.
>
> Michael
>
>
> -----Original Message-----
> From: users-bounces at lists.openser.org
> [mailto:users-bounces at lists.openser.org] On Behalf Of Michael Young
> Sent: Friday, May 16, 2008 9:20 PM
> To: users at lists.openser.org
> Subject: [OpenSER-Users] Openser 1.3.2 rev_dns=no
>
> In my openser.cfg (running 1.3.2), I have:
>
> dns=no
> rev_dns=no
>
> but a packet capture shows OpenSER doing a reverse DNS lookup on my 
> provider's proxy IP address with every invite. Are those lines no 
> longer supported? I tried starting OpenSER with -R, but same behavior.
>
> Michael Young
>
>
> No virus found in this outgoing message.
> Checked by AVG. 
> Version: 7.5.524 / Virus Database: 269.23.16/1446 - Release Date: 
> 5/16/2008
> 7:42 AM
>  
>
>
> _______________________________________________
> Users mailing list
> Users at lists.openser.org
> http://lists.openser.org/cgi-bin/mailman/listinfo/users
>
> No virus found in this incoming message.
> Checked by AVG. 
> Version: 7.5.524 / Virus Database: 269.23.16/1446 - Release Date: 
> 5/16/2008
> 7:42 AM
>  
>
> No virus found in this outgoing message.
> Checked by AVG. 
> Version: 7.5.524 / Virus Database: 269.23.20/1453 - Release Date: 
> 5/18/2008
> 9:31 AM
>  
>
>
> _______________________________________________
> Users mailing list
> Users at lists.openser.org
> http://lists.openser.org/cgi-bin/mailman/listinfo/users
>   

--
http://www.asipto.com


No virus found in this incoming message.
Checked by AVG. 
Version: 7.5.524 / Virus Database: 269.23.20/1453 - Release Date: 5/18/2008
9:31 AM