User Manual Part 2
Table Of Contents
- Using SmartDefense
- Using Antivirus and Antispam Filtering
- Overview
- Using VStream Antivirus
- Using VStream Antispam
- How VStream Antispam Works
- Header Marking
- Default Antispam Policy
- Enabling/Disabling VStream Antispam
- Viewing VStream Antispam Statistics
- Configuring the Content Based Antispam Engine
- Configuring the Block List Engine
- Configuring the IP Reputation Engine
- Configuring the VStream Antispam Policy
- Configuring the Safe Sender List
- Configuring VStream Antispam Advanced Settings
- Using Centralized Email Filtering
- Using Web Content Filtering
- Updating the Firmware
- Using Subscription Services
- Working With VPNs
- Overview
- Setting Up Your Safe@Office Appliance as a VPN Server
- Adding and Editing VPN Sites
- Viewing and Deleting VPN Sites
- Enabling/Disabling a VPN Site
- Logging in to a Remote Access VPN Site
- Logging Out of a Remote Access VPN Site
- Using Certificates
- Viewing VPN Tunnels
- Viewing IKE Traces for VPN Connections
- Viewing VPN Topology
- Managing Users
- Using Remote Desktop
- Controlling the Appliance via the Command Line
- Maintenance
- Viewing Firmware Status
- Upgrading Your Software Product
- Configuring a Gateway Hostname
- Configuring Syslog Logging
- Configuring HTTPS
- Configuring SNMP
- Setting the Time on the Appliance
- Using Diagnostic Tools
- Backing Up and Restoring the Safe@Office Appliance Configuration
- Using Rapid Deployment
- Resetting the Safe@Office Appliance to Defaults
- Running Diagnostics
- Rebooting the Safe@Office Appliance
- Using Network Printers
- Troubleshooting
- Specifications
- Glossary of Terms
- Index
SmartDefense Categories
Chapter 14: Using SmartDefense 431
Network Quota
An attacker may try to overload a server in your network by establishing a very large
number of connections per second. To protect against Denial Of Service (DoS) attacks,
Network Quota enforces a limit upon the number of connections per second that are
allowed from the same source IP address.
You can configure how connections that exceed that limit should be handled.
Table 77: Network Quota Fields
In this field… Do this…
Action Specify what action to take when the number of network connections
from the same source reaches the Max. Connections/Second per Source IP
threshold. Select one of the following:
• Block. Block all new connections from the source. Existing
connections will not be blocked. This is the default.
• None. No action.
Track Specify whether to log connections from a specific source that exceed
the Max. Connections/Second per Source IP threshold, by selecting one of
the following:
• Log. Log the connections. This is the default.
• None. Do not log the connections.