...
            try
            {           
                /* Connecting to server (will crash if address/name is incorrect) */
                myClient = new TcpClient("whois.ripe.net", 43);
                /* Store the NetworkStream */
                myStream = myClient.GetStream();
                /* new Text Stream Reader */
                reader = new StreamReader(myStream);
                /* new Text Stream Writer*/
                writer = new StreamWriter(myStream);
       
            }
            catch (Exception e)
            {
                Exception e2 = new Exception("could not connect to server\n" + e.Message);
                throw e2;
            }       
           
            ...

            //send query to RIPE DB
            writer.WriteLine("-k 84.149.167.143\n");
            writer.Flush();
            //read RIPE DB query response
            string response = "";
            while (!reader.EndOfStream)
            {
                response += reader.ReadLine() + "\n";
            }

On Tue, Dec 05, 2006 at 04:48:28PM +0100, Sepp wrote:

Dear Sepp,

It looks like your tool sends some broken query at some point, hence the
error 'No search key specified'.
Try printing out the complete debugging output of what your tool sends
to the whois server, and let us know.

 From which IP address are your querying? We might check our log files
to see which queries exactly did our server receive from your IP.

Katie Petrusha
RIPE NCC

  

Hello all,
attention bad english ahead! ;-)

I'm writing a tool which queries the RIPE DB to find out the location of 
some IP adresses.
When I query the database with a string like "84.149.135.10/16\r\n", i 
get a correct response and the tcp/ip connection will be closed by RIPE.
But because I've to query some more IPs, i would like to let the 
connection open.
As i read in the RIPE DB manual there is the "-k" flag which should tell 
the DB letting the connection open until I send an empty query.
In telnet it works fine, but not in my tool.
In my tool i'm sending a string like "-k 84.149.135.10/16\r\n" (in 
telnet i wrote "-k 84.149.135.10/16" + <return>).
The DB output looks like this:

    

% This is the RIPE Whois query server #1.
% The objects are in RPSL format.
%
% Note: the default output of the RIPE Whois server
% is changed. Your tools may need to be adjusted. See
% http://www.ripe.net/db/news/abuse-proposal-20050331.html
% for more details.
%
% Rights restricted by copyright.
% See http://www.ripe.net/db/copyright.html

% Note: This output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '84.136.0.0 - 84.191.255.255'

inetnum:      84.136.0.0 - 84.191.255.255
netname:      DTAG-DIAL20
descr:        Deutsche Telekom AG
country:      DE
admin-c:      DTIP
tech-c:       DTST
status:       ASSIGNED PA
remarks:      
******************************************************************
remarks:      * Abuse Contact: http://www.t-com.de/ip-abuse in case of 
Spam,   *
remarks:      * Hack Attacks, Illegal Activity, Violation, Scans, 
Probes, etc. *
remarks:      
******************************************************************
mnt-by:       DTAG-NIC
source:       RIPE # Filtered

person:       DTAG Global IP-Addressing
address:      Deutsche Telekom AG
address:      D-90492 Nuernberg
address:      Germany
phone:        +49 180 5334332
fax-no:       +49 180 5334252
e-mail:       ripe.dtip@telekom.de
nic-hdl:      DTIP
mnt-by:       DTAG-NIC
source:       RIPE # Filtered

person:       Security Team
address:      Deutsche Telekom AG
address:      Germany
phone:        +49 180 5334332
fax-no:       +49 180 5334252
e-mail:       abuse@t-ipnet.de
nic-hdl:      DTST
mnt-by:       DTAG-NIC
source:       RIPE # Filtered

% Information related to '84.128.0.0/10AS3320'

route:        84.128.0.0/10
descr:        Deutsche Telekom AG, Internet service provider
origin:       AS3320
member-of:    AS3320:RS-PA-TELEKOM
mnt-by:       DTAG-RR
source:       RIPE # Filtered


% This is the RIPE Whois query server #1.
% The objects are in RPSL format.
%
% Note: the default output of the RIPE Whois server
% is changed. Your tools may need to be adjusted. See
% http://www.ripe.net/db/news/abuse-proposal-20050331.html
% for more details.
%
% Rights restricted by copyright.
% See http://www.ripe.net/db/copyright.html

%ERROR:106: no search key specified
%
% No search key specified
      

Thx and greetings
~Sepp