Home Theater Server User Manual
Table Of Contents
- Contents
- About This Document
- Network Security
- TCP SYN attacks
- IP TCP syn-proxy
- Granular application of syn-proxy feature
- Syn-def
- No response to non-SYN first packet of a TCP flow
- Prioritizing management traffic
- Peak BP utilization with TRAP
- Transaction Rate Limit (TRL)
- Understanding transaction rate limit
- Configuring transaction rate limit
- Configuring the maximum number of rules
- Saving a TRL configuration
- Transaction rate limit command reference
- Global TRL
- TRL plus security ACL-ID
- security acl-id
- Transaction rate limit hold-down value
- Displaying TRL rules statistics
- Displaying TRL rules in a policy
- Displaying IP address with held down traffic
- Refusing new connections from a specified IP address
- HTTP TRL
- Overview of HTTP TRL
- Configuring HTTP TRL
- Displaying HTTP TRL
- Display all HTTP TRL policies
- Display HTTP TRL policy from index
- Display HTTP TRL policy client
- Display HTTP TRL policy starting from index
- Display HTTP TRL policy matching a regular expression
- Display HTTP TRL policy client index (MP)
- Display HTTP TRL policy client index (BP)
- Display HTTP TRL policy for all client entries (BP)
- Downloading an HTTP TRL policy through TFTP
- HTTP TRL policy commands
- Logging for DoS Attacks
- Maximum connections
- clear statistics dos-attack
- Maximum concurrent connection limit per client
- Firewall load balancing enhancements
- Syn-cookie threshhold trap
- Service port attack protection in hardware
- Traffic segmentation
- DNS attack protection
- Access Control List
- How ServerIron processes ACLs
- Default ACL action
- Types of IP ACLs
- ACL IDs and entries
- ACL entries and the Layer 4 CAM
- Configuring numbered and named ACLs
- Modifying ACLs
- Displaying a list of ACL entries
- Applying an ACLs to interfaces
- ACL logging
- Dropping all fragments that exactly match a flow-based ACL
- Enabling ACL filtering of fragmented packets
- Enabling hardware filtering for packets denied by flow-based ACLs
- Enabling strict TCP or UDP mode for flow-based ACLs
- ACLs and ICMP
- Using ACLs and NAT on the same interface (flow-based ACLs)
- Displaying ACL bindings
- Troubleshooting rule-based ACLs
- IPv6 Access Control Lists
- Network Address Translation
- Syn-Proxy and DoS Protection
- Understanding Syn-Proxy
- Configuring Syn-Proxy
- DDoS protection
- Configuring a security filter
- Configuring a Generic Rule
- Configuring a rule for common attack types
- Configuring a rule for ip-option attack types
- Configuring a rule for icmp-type options
- Configuring a rule for IPv6 ICMP types
- Configuring a rule for IPv6 ext header types
- Binding the filter to an interface
- Clearing DOS attack statistics
- Clearing all DDOS Filter & Attack Counters
- Logging for DoS attacks
- Displaying security filter statistics
- Address-sweep and port-scan logging
- Secure Socket Layer (SSL) Acceleration
- SSL overview
- SSL acceleration on the ServerIron ADX
- Configuring SSL on a ServerIron ADX
- Basic SSL profile configuration
- Advanced SSL profile configuration
- Configuring Real and Virtual Servers for SSL Termination and Proxy Mode
- Configuration Examples for SSL Termination and Proxy Modes
- SSL debug and troubleshooting commands
- Displaying socket information
ServerIron ADX Security Guide 171
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Advanced SSL profile configuration
6
Configuring a session cache timeout
By default, SSL sessions are held in the cache for 30 seconds. You can change the time period a
session is in cache, as shown in the following.
ServerIronADX(config)# ssl profile profile1
ServerIronADX(config-ssl-profile-profile1)# session-cache-timeout
Syntax: [no] session-cache-timeout <timeout-in-seconds>
The <timeout-in-seconds> variable can be set to a value between 20 and 86400 seconds. The
default value is 30 seconds.
Enabling SSL Version 2
By default, the ServerIronADX supports SSL version 3. You can enable SSL version 2 as shown in
the following example.
To do this, enter the following command under the SSL profile:
ServerIronADX(config)# ssl profile profile1
ServerIronADX(config-ssl-profile-profile1)# enable-ssl-v2
Syntax: [no] enable-ssl-v2
SSLv2 is disabled by default.
Enabling close notify
You can configure a ServerIronADX to send an alert before closing an SSL session as shown in the
following.
ServerIronADX(config)# ssl profile profile1
ServerIronADX(config-ssl-profile-profile1)# enable-close-notify
Syntax: [no] enable-close-notify
When this command is configured, the ServerIronADX will send an alert before closing an SSL
session. By default, a ServerIronADX does not send a close notify alert before closing an SSL
session.
Disabling certificate verification
You can configure an ServerIron ADX to disable certificate verification as shown in the following:
ServerIronADX(config)# ssl profile profile1
ServerIronADX(config-ssl-profile-profile1)# disable-certificate-checking
Syntax: [no] disable-certificate-checking
This command only applies to SSL proxy mode. When a
ServerIron ADX is in SSL proxy mode, it acts
as a client for the backend server.
By default, if the server sends a certificate with the wrong information, the ServerIron ADX will
reject it. If this command is configured, the ServerIron ADX will accept an invalid certificate.