Firewalls are either software programs or hardware devices. What these do is filter and examine the information coming through your Internet connection.
Firewalls truly are a first line of defense, which can stop malware or an attacker from gaining access to your network and information before any potential damage is done.
Secure your firewall
Architect your firewall zones and IP addresses
Configure access control lists
Configure your other firewall services and logging
Test your firewall configuration
DOMAIN NAME SYSTEM or DNS
HOW TO APPLY DNS FILTERS
There are several steps to add DNS filtering.
1. Connect to gateway
2. Connect devices
3. Connect DNS locations
4. Verify device connectivity
5. Add recommended and optional policies
There are additional steps in between each of the above items listed.
If you need your DNS checked or have questions contact ITC to assist in securing all of your technology.