Some one attack on my server by Flooding and spoofed into DNS I believe it was my own staff. Then They are not control because the security is not tide !
I have a Gateway server called
titan.myserv.com 192.168.42.LAN<------->[192.168.42.01] 192.168.43.LAN<------->[192.168.43.01] 192.168.44.LAN<------->[192.168.44.01] [219.93.238.182]<-->[DSL-219.93.238.181]
subnetmask = 255.255.255.0
/var/named/192.168.42.db = 25 users /var/named/192.168.43.db = 12 users /var/named/192.168.44.db = 8 users
* No DHCP, All Manually assigned !
DNS: -[Cache] -Internal DNS IP = 192.168.42.1,192.168.43.1,192.168.44.1 -External DNS IP = 202.188.0.133,161.142.0.17....more.
Description Of DNS configuration : -Forward to external if cant resolved
Help In this : 1. Users can simply point to external/ISP DNS without going throught my DNS. I dont want this to happen. 2. I only want IP addessses which existed in /var/named/192 <files> Can do query on the Internal DNS. 3. I hope External DNS is blocked forever, so user cannot directly query External DNS. 4. I hope A computer without an IP and hostname given by administrator in the LAN cannot communicate even they dont Have to resolve IP to Name applications.
Thats all.
*I had gone throught tldp.org but they had less info i want.
Thanks
Nicholas