S350 Series 24-Port (PoE+) and 48-Port Gigabit Ethernet Smart Managed Pro Switches
Configure System Information User Manual58
• Denial of Service TCP SYN. Enabling TCP SYN DoS prevention causes the switch
to drop packets with TCP flags set.
• Denial of Service TCP SYN&FIN. Enabling TCP SYN & FIN DoS prevention causes
the switch to drop packets with
TCP flags SYN and FIN set.
• Denial of Service UDP Port. Enabling UDP Port DoS prevention causes the switch
to drop packets for which the UDP source port is equal to the UDP destination port.
7. Click the Apply button.
Your settings are saved.
Configure DNS Settings
You can configure information about DNS servers that the network uses and how the switch
operates as a DNS client.
Configure Global DNS Settings and Add a DNS Server
You can configure global DNS settings and DNS server information.
To configure the global DNS settings and add a DNS server:
1. Connect your computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ethernet cable.
2. Launch a web browser.
3. In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see
Discover or Change the Switch IP
Address on page 12.
The login window opens.
4. Enter the switch’s password in the Password
field.
The default password is password.
The System Information page displays.
5. Select System > Management > DNS > DNS Configuration.