On Monday, August 09, 2004 11:18 PM [EST], Fajar A. Nugraha wrote: >> > You know, this isn't so crazy after all. I put arbitrary data on my > DNS server so that exim > can get config data using dnsdb lookup. Its cheaper than mysql > lookup (Plus, you eliminate single point of failure), > and you can still update config from a central location instead of > updating each server config. > > The only snag, is that TXT record is limited to a number of bytes ( > I tried putting 4096 bytes on it, it didn't work). > Now, the question is, can the daily (or hourly) updates fit in a > single TXT record? > If it must span multiple records than it will be somewhat > complicated .... > > Regards, > > Fajar
I'd not recommend putting all the data in TXT records. TXT records can be a max of 255 characters (anything more and you'll have problems with other resolvers and such). But yeah, the version number in the TXT records would be good, set the TTL to about 30-60 mins, and have the freshclam client query and check the version. I could assist with implementing the necessary server side scripts to make the DNS management part really easy (I do something similar to this all the time, rbldnsd makes stuff like this stupidly simple and quick). Hell, I could even offer the DNSbl servers that the AHBL has to host the zones if needbe. -- Brian Bruns The Summit Open Source Development Group Open Solutions For A Closed World / Anti-Spam Resources http://www.sosdg.org The Abusive Hosts Blocking List http://www.ahbl.org ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285 _______________________________________________ Clamav-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/clamav-users
