We need :

Linux server Router firewall linux Window xp clients

Linux server

Install DNS server

Create dynamic update

Result

DHCP Server

Vim/etc/dhcpd.conf

Services FTP

AD (Ldap&Samba)

Install Ldap server

Vim/etc/openldap/slap.conf

Create new file to create domain

Add domain

Create OU

Add OU

Create user in ldap

Add user in ldap

Create role in router:

Vim/etc/init.d/skelton and copy this file to new file:

Create new file “ iptables.sh”

Create new rule

Test xp client

Allow ftp

Server:

Xp client:

Access FTP

Allow SSH server

Xp client

Allow clients can access internet:

Server

Router:

Vim/etc/resolv.conf

Change vmnet2 to bridge

Assign default gateway to firewall ( ip cist.lan)

Xp test