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This bug exists also on RHEL-7.

Version-Release number of selected component (if applicable):
nmap-6.40-4.el7

+++ This bug was initially created as a clone of Bug #1000770 +++

Description of problem:
When using ncat to connect through a HTTP proxy a debug message is displayed on screen. This breaks automated use of ncat.

$ /usr/bin/ncat --proxy-type http --proxy proxy.example.com:3128 www.example.com 443
NCAT DEBUG: Proxy returned status code 200.

Version-Release number of selected component (if applicable):
nmap-5.51-2.el6.i686

How reproducible:
Use ncat to connect through a HTTP proxy.

Steps to Reproduce:
1. see above
2.
3.

Actual results:
Debug message displayed.

Expected results:
No message displayed unless verbose output has been requested.

Additional info:
Fedora 19 had same bug (ticket 994376). If you ask why I'm using "ncat" instead of "nc", that's because "nc" is even more broken for use of HTTP proxy:

$ nc -X connect -x www.example.com:3128 www.example.com 443
nc: Proxy error: "HTTP/1.1 200 Connection established"

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-2137.html