[CentOS] Network Performance

Mon Apr 30 18:38:00 UTC 2018
Nataraj <incoming-centos at rjl.com>

On 04/30/2018 10:43 AM, Chris Olson wrote:
> ftp> 
> ftp> put "|dd if=/dev/zero bs=32768 count=8000" /dev/null
> 200 PORT command successful.
> 150 Binary data connection for /dev/null (IP Address).
> 8000+0 records in
> 8000+0 records out
> 226 Transfer complete.
> local: |dd if=/dev/zero bs=32768 count=8000 remote: /dev/null
> 262144000 bytes sent in 23 seconds (11081.79 Kbytes/s)
> ftp> 

Though I haven't tried this, my first guess would be your ftp server is
running in some kind of a chroot environment.  You would have to either
disable this for the test or put whatever programs and libraries are
needed inside the chroot environment.  You might also try specifying the
full path, i.e. /bin/dd.