Nmap Development mailing list archives
Proposal for ncat improvement
From: Ulrich Heuser <heuser_uli () hotmail com>
Date: Tue, 11 Dec 2018 16:01:48 +0000
Dear all, I found a relevant diff between the original netcat tool and ncat out of nmap: On sending out a http-request by netcat the connection is kept alive for a long period, and this supports receiving a http-response from the addressed counterpart. With ncat the connection is closed after 1 sec., and the comm. counterpart is not able to send a http-response to the ncat requestor after that amount of time. It would be useful to extend the options of ncat by a keep-alive time-val. and to keep the connection open for such given period to allow receiving the response. Pls. find an example from a DOS command-line window below, where nc is the call to original netcat tool, and ncat the call to the corresponding tool out of the nmap suite: ----------------------------------------------------------------------------------------- D:\Testing>nc -v 173.21.45.122 85 < scales.txt testhost.intra.dev [176.21.45.122] 85 (?) open HTTP/1.0 200 OK Content-Type: text/plain Content-Length: 237 3.8 <?xml version="1.0" encoding="iso-8859-1"?> <HULXMLRESP version="1.0.0"> <CMD value="getweight" parcelid="JJD0400284610322818" userid="xxx" stationid="11" popid="01" > <WEIGHT scale="3.8" unit="kg"/> </CMD> </HULXMLRESP> G:\Testing>ncat -v 176.21.45.122 85 < scales.txt Ncat: Version 7.70 ( https://nmap.org/ncat ) Ncat: Connected to 176.21.45.122:85. Ncat: 240 bytes sent, 0 bytes received in 2.21 seconds. D:\Testing> ----------------------------------------------------------------------------------------- Uli Heuser
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Current thread:
- Proposal for ncat improvement Ulrich Heuser (Dec 11)
- Re: Proposal for ncat improvement nnposter (Dec 11)
- Re: Proposal for ncat improvement Ulrich Heuser (Dec 12)
- Re: Proposal for ncat improvement nnposter (Dec 12)
- Re: Proposal for ncat improvement Ulrich Heuser (Dec 12)
- Re: Proposal for ncat improvement nnposter (Dec 11)