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Writing a DNS server is easyWriting a DNS server is easyPosted Jan 23, 2003 20:18 UTC (Thu) by ahu (guest, #4298)In reply to: Writing a DNS server is easy by paulsheer Parent article: A couple of alternative DNS servers I'll speak to you a year from now :-) Anyhow, the recursive part is not that hard, the PowerDNS one is just 448 lines.
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Re: Writing a DNS server is easy Posted Jan 25, 2003 10:41 UTC (Sat) by sam (guest, #1329) [Link] Well, depends on what sort of infastructure you already have in place. My recursive server is over 4000 lines long (!!!), but that includes the entire caching infastructure.Does your caching infastructure have a method of removing elements from the cache so they no longer take up memory? It took us months to get rid of all of the memory leaks in MaraDNS' cache. BTW, Bert, I would like to applaud you for making Power DNS open source. It is good to see being realistic enough to realize that you are better off GPLing this package. You will still earn money by putting it on your résumé to impress people when the tech economy picks up again. It is good to have competition among different open source DNS products; I am glad the "call to arms" for a non-BIND DNS server which has resulted in a number of implementations. Just two weeks ago, there were all of three non-BIND freely downloadable recursive DNS servers (my MaraDNS, pdnsd, and DjbDNS). All of a sudden, there are two more--five in total. - Sam
Re: Writing a DNS server is easy Posted Feb 3, 2003 18:46 UTC (Mon) by ahu (guest, #4298) [Link] two words: use c++ :-) Saves heaps of typical C problems if done right, like memory leaks and the need to write btrees and whatnot
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