On Wed, 18 Oct 2000, Marc Schneiders wrote:
> On Tue, 17 Oct 2000, !Dr. Joe Baptista wrote:
> >
> > On Tue, 17 Oct 2000, Chronos wrote:
> >
> > > I know how to uncompress the data, but what the heck do I do with it after I
> > > have uncompressed it?? If I just used vi I think the system would probably
> > > crash or take forever to open the file. This is what I want to do, I want to
> > > write a PHP script that will beable to search the file and display it on a
> > > page.
> >
> > In the words of the perpetual civil servant "that's a bold idea"
> >
> > what exactly do you want to do with the data - it's in bind zone format -
> > so a conversion maybe in order. But you need to know what it is you want
> > to do with it. And yes - vi don't work on it.
>
> Although I think Joe Baptista knows much more about this, streaming
> and piping &c. (?), I can tell you what I do with the zone
> files. Occasionally, just for play.
>
> 1. Grep them, e.g. grep '^..\.NET\.' net.zone > 2-letter.net This will
> give you a small file with all 2-letter net domains in it, well and
> some rubbish, vid. their nameservers :-)
i usually do;
zcat $zonefilename | grep " IN NS " | cut -d"." -f1 | tr '[a-z]' '[A-Z]' | sort -u
now you'd have to check the zone file to see if that cut statement is a
-d"." or a -d" " - I forget.
now the formula I gave is not going to work for most of you. I have a
four gig tmp drive - so I expect on smaller systems the above command will
cause some problems - mainly with the sort command which generates alot of
tmp stuffers - i.e. sort files.
so cut it up - make a file with the letters A-Z and numerals 0-9 and then
take that file and use it to parse the zone into alpha numberic parts.
i.e.
cat $alphanumfile |
while read line
do
zcat $zonefilename | grep " IN NS " | grep "^$line" | cut -d"." -f1 | tr '[a-z]'
'[A-Z]'
> $line.zone-file
done
that breaks it into manageable pieces you can then sort individually. the
diffs are also a killer to do. The trick is to manage the files according
to your memory limitations.
>
> 2. Do the same with the zone file of a day of 4 or 5 later.
>
> 3. Diff these two files to a file.
>
> 4. Study that file, which shows you the changes. Many uninteresting,
> changes of nameservers. Some, however, which appear in the older file
> and not in the newer, may be domains that will some time soon (NetSol
> permitting) be released.
>
> Now, I am looking for a *working* script to attempt to register a name
> that will be available soon with wget through my own opensrs pages.
> Not to do it every minute, but at the time, that I think it must be
> released, and when I may be sleeping or having a shower.
>
> Of course, nobody will tell me :-(
>
>
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