Great.. i've installed phpmyadmin on nethserver 6.5
Thanks @dz00te
Here the "script".. in order to satisfy the dependency execute in order:
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/nethserver-phpmyadmin-1.1.0-1.ns6.noarch.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/phpMyAdmin-4.0.10.4-1.el6.noarch.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/php-php-gettext-1.0.11-3.el6.noarch.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/pwauth-2.3.10-5.el6.x86_64.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/mod_authnz_external-3.2.6-1.el6.x86_64.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/php-tcpdf-6.0.095-1.el6.noarch.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/php-tcpdf-dejavu-sans-fonts-6.0.095-1.el6.noarch.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/libmcrypt-2.5.8-9.el6.x86_64.rpm
wget http://mirror.framassa.org/nethserver/6.5/nethforge/x86_64/Packages/php-mcrypt-5.3.3-3.el6.x86_64.rpm
yum localinstall php-tcpdf-6.0.095-1.el6.noarch.rpm
yum localinstall php-tcpdf-dejavu-sans-fonts-6.0.095-1.el6.noarch.rpm
yum localinstall libmcrypt-2.5.8-9.el6.x86_64.rpm
yum localinstall php-mcrypt-5.3.3-3.el6.x86_64.rpm
yum localinstall pwauth-2.3.10-5.el6.x86_64.rpm
yum localinstall php-php-gettext-1.0.11-3.el6.noarch.rpm
yum localinstall mod_authnz_external-3.2.6-1.el6.x86_64.rpm
yum localinstall phpMyAdmin-4.0.10.4-1.el6.noarch.rpm
yum localinstall nethserver-phpmyadmin-1.1.0-1.ns6.noarch.rpm
Now after some other personalization i will try the upgrade from 6.5 to 6.7 if i found the instruction