If one executes:<br />
<br />
curl -v -o /dev/null --digest <a href="http://user:<a href="mailto:password@www.centos.org">password@www.centos.org</a>">http://user:<a href="mailto:password@www.centos.org">password@www.centos.org</a></a> [<a href="http://user:<a href="mailto:password@www.centos.org">password@www.centos.org</a>" target="_blank">^</a>]<br />
<br />
the output is:<br />
<br />
...<br />
> GET / HTTP/1.1<br />
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.13.1.0 zlib/1.2.3 libidn/1.18 libssh2/1.2.2<br />
> Host: www.centos.org<br />
> Accept: */*<br />
...<br />
<br />
while output of:<br />
<br />
curl -v -o /dev/null --basic <a href="http://user:<a href="mailto:password@www.centos.org">password@www.centos.org</a>">http://user:<a href="mailto:password@www.centos.org">password@www.centos.org</a></a> [<a href="http://user:<a href="mailto:password@www.centos.org">password@www.centos.org</a>" target="_blank">^</a>]<br />
<br />
is:<br />
<br />
...<br />
> GET / HTTP/1.1<br />
> Authorization: Basic dXNlcjpwYXNzd29yZA==<br />
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.13.1.0 zlib/1.2.3 libidn/1.18 libssh2/1.2.2<br />
> Host: www.centos.org<br />
> Accept: */*<br />
...<br />
<br />
(note the absence of "Authorization:" header in the first case).
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