Make medium linux for testing and some interests purposes such as:
1. linux that was built is small enough to be inserted into the flash disk or another block device.
2. Can be booted from a laptop, PC, or other x86 standard devices.
3. Software can be installed for testing purposes, such as iptables, ebtables, brctl (bridge controller), vlan, pppoe server / client, pptp server / client, web server, database, nfs, etc..
4. Easy to configure,...