30 Oct
2008
30 Oct
'08
2:50 a.m.
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@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@gmail.com]
Sent: Sunday, May 18, 2008 4:08 PM
To: Michael Young
Cc: users(a)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@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(a)lists.openser.org
[mailto:users-bounces@lists.openser.org] On Behalf Of Michael Young
Sent: Friday, May 16, 2008 9:20 PM
To: users(a)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
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