[rbldnsd] Warning: possible danger of using rbldnsd, and upcoming data format change

Michael Tokarev mjt at tls.msk.ru
Wed Jun 9 14:12:29 MSD 2004


Matthew Sullivan wrote:
> David Landgren wrote:
[]
>> Now you've got me worried about this issue. But if that were to happen 
>> to me, I'd solve the problem myself by, on the sending side, sending a 
>> zone file, and a file containing the computed MD5 checksum, and on the 
>> receiving side, checking that the MD5 corresponds to the received 
>> file, and only if they match, then moving the zone file over to where 
>> rbldnsd picks it up. I could whip up a couple of example shell or perl 
>> scripts to bundle with the distribution if you like.
>>
>> It also nicely sidesteps the backwards compatibility issue of the data 
>> formats at the same time :)
>>
> You could also implement a <zonefile>..LCK file...?!
> 
> That would mean no backwards compatability problems.  If it knows about 
> the lockfile it works - if it doesn't it doesn't simple...

What did you mean, Matthew? ;)

/mjt


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