Q: Why my SSH client (scp or sftp) needs more than 15 seconds to connect to the mobile device?

A: The SSH client needs more than 15 seconds to connect to the mobile device because by default the Nylux platform enable the use of dns, slowing  the connection procedure. In order to speed up the connection time, if not needed the dns, the user can modify the configuration file /etc/ssh/sshd_config setting for the "UseDNS" parameter the "no" value (without quotes). By default that file contains a line "#UseDNS yes" (that shows the default value): after that line the user must insert a new line containing the "UseDNS no" string (without quotes), then save the file. When finished, a reboot will be needed.