James Smith wrote:
> Hi all.
>
> Here is a problem I have been pulling my hair out over. I want to do an
> NSLookup directly (ie: no custom tags if it can be avoided) and have tried
> both w3sockets and TCPClient to open the socket but not for love nor money
> can I find the appropriate commands to send.
>
> I can use either to connect to a POP3 server, login, read mail etc.... but I
> just cant get DNS queries to work.
>
> Can anyone point me in the correct direction?
honestly the best advice here is don't re-invent the wheel.. use
cfexecute and dig from sendmail/bind or maybe a java class
this code using dig will give u really detailed info about dns
<cfsavecontent variable="dig_out"><cfexecute name="#server.dig_exe#"
arguments="#attributes.domain# +nssearch " timeOut="5"></cfexecute>
</cfsavecontent>
<cfscript>
soa_pos=FindNoCase("SOA",dig_out,1);
if (soa_pos gt 0){
soa_server=ListGetAt(dig_out,2," ");
request.mod.dnsdig.status=1;
} else {
// name server soa not found!
soa_server="";
request.mod.dnsdig.status=-1;
}
</cfscript>
<cfif len(soa_server) gt 0>
<cfsavecontent variable="request.mod.dnsdig.info"><pre>
<cfexecute name="#server.dig_exe#"
arguments="@#soa_server# #attributes.domain# axfr +multiline"
timeOut="5"></cfexecute></pre></cfsavecontent>
the short explanation is SOA is the master server for a domain, u can
only get the detailed info from the master server, you first get the SOA
server, then u query the SOA server for the domain info
is there a reason why you don't want to use custom tags??? what are u
wanting to do?
z
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