CentOS

i had install trixbox 2.8.0.4 on pc lenovo ideacentre Q190
the network is unknow device 8179 (Network Controller: Realtek Semiconductor)
unknow device 336b (realtext semiconductor RTL8111/8168B PCI Express gigabit ethernet controller).

I tried install it, but is not OK,
please help.
thank's

You may be able to find a kernel module for CentOS 5 for that card by looking on the ELRepo third party yum repository. Start at http://elrepo.org/tiki/tiki-index.php