12 Feb
2007
12 Feb
'07
10:26 p.m.
We have had all kinds of issues with the external caches and built consequently
our own in SER Ottendorf. (which is not openser though) The external caches
appeared suboptimal because there seemed to be some implementation issues and
also you can't combine external cache with blacklisting. (which we have in
SER).
-jiri
At 20:22 12/02/2007, Christian Schlatter wrote:
Now that OpenSER supports NAPTR/SRV lookups I'd
like to add DNS caching to our SIP servers in order to decrease call setup delays and DNS
server load introduced by DNS queries.
I was wondering if others on this list have experience with running OpenSER together with
a DNS cache solution like nscd or dnsmasq. Initial tests with nscd were not successful
since somehow the OpenSER processes do not go through the ncsd caching, whereas e.g. ping
does. I'm also not sure if ncsd or dnsmasq do support NAPTR and SRV type DNS queries.
I'd be glad to hear any recommendations on this topic,
Christian
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Jiri Kuthan http://iptel.org/~jiri/