12 Feb
2007
12 Feb
'07
7:22 p.m.
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