Re: [Pdns-users] Hidden supermasters
Hi Richard, On Fri, 2010-08-06 at 15:27 +1000, Richard McLean wrote: I have wondered about this. We'd love to implement a hidden supermaster type setup, using AXFR, which auto-updates the 4 main name servers, but is *not* in the list of name servers for a domain and is not publicly available. Is the restriction above able to be worked around or turned off? I've managed to work around this by adding a config line like: gsql-supermaster-query=select account from supermasters where ip='%s' In this setup, only IP addresses need to be listed in the supermasters table and the other checks are bypassed. This might need some careful checks if the database schema / the expected returned field list etc changes at some point in the future. -- -Michael Fincham System Administrator, Unleash www.unleash.co.nz ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
[Pdns-users] EDNS support + default buffer size
Hi all, I've just tested the PowerDNS Recursor 3.2 with its out of the box configuration against the tests outlined at https://www.dns-oarc.net/oarc/services/replysizetest It seems that EDNS is disabled by default, which is confirmed by the comment attached to changeset #1430 (http://wiki.powerdns.com/trac/changeset/1430) Looking at the source it seems in 3.2 an option disable-edns=no was added which turns EDNS support on. A cursory test here shows that adding this to the stock config does cause the dns-oarc reply size test to report a reply size of 1200 vs 512 when EDNS is off. What is the status of EDNS support? Is it safe to rely on in production environments? What specifically does the nothing but trouble comment on the changeset refer to? Also, the buffer size of 1200 appears to be hard coded. Is there any particular reason for this value? I'm guessing it has to do with avoiding fragmentation, but it'd be nice to know for sure. Thanks, -- -Michael Fincham System Administrator, Unleash www.unleash.co.nz Phone: 0800 750 250 ___ Pdns-users mailing list Pdns-users@mailman.powerdns.com http://mailman.powerdns.com/mailman/listinfo/pdns-users
