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Alle 10.32 Tuesday 29/08/2000 +0200, Morten Helgaland ha mandato a Marco
questo messaggio:
> Jim Sander suggests:
>> Here's another idea that may be of some help also- simply "Seed" your
>>DNS cache with the text you want for those IP addresses. Yes, it's 144
>>entries, but they are trivial to generate with say perl
>
>I don't have a DNS file, as I mentioned in an earlier posting, it's not
>interesting to me. Maybe I have to build one...
You can even use a spreadsheet like Excel or Quattro Pro to generate
series: easier, if you aren't in programming.
If you need I can mail you privately an Excel sheet to do the job.
>> I don't know for sure, but I suspect my way would be significantly
>>faster, since trying a match for a big regexp against *every* log line
>>would take longer than a simple hash index into the DNS Cache. That may or
>>may not be an important factor for you to consider.
>
>It would probably be faster, as the regexps above are simple compared to a
>few others I had to write. But again, sounds like a good idea.
Both methods, if used on huge logs with a lot of external references,
requires very big files.
I don't know if it's faster to open a 20 Mb DNS file or to use a thousand
of regexps. I think it's very "platform specific": maybe a Linux machine is
faster than a NT box on regexps.
Bye!
Marco Bernardini
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