Technical data

ServerIron ADX Graphical User Interface Guide 87
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Content switching
7
5. Click Apply to save your entries.
Click Reset to revert the configuration to the previous configured values.
To modify the configured request rules, in the summary table, select an entry and click Edit or
double-click the entry. You can also delete a configuration by clicking Delete.
Creating response rules
The device can perform content rewrite on the server responses. In other words, the device can not
only modify requests in the forward direction, but also the responses in reverse direction. The HTTP
response is divided into the "header" part and the "body" part. The device can selectively rewrite
the header, body, or both.
To create a response rule for outgoing traffic on the device, perform the following steps within the
Configure tab.
1. Click Traffic on the menu bar.
2. From the sidebar, select Content Switching, and then select Response Rules.
DNS DPI Allows the ADX device to
perform a deep packet
scan and then classify
DNS requests based on
the following: query type,
query name, RD flag or
the DNS security
extensions (DNSSEC) OK
bit in the EDNS0 header.
Under the Settings for DNS DPI Rule, provide the following
information:
• Query Type: Specifies the DNS query type to match on.
• Query Name: specifies the name of the DNS query type to
match on.
• Recursion Desired (RD): Select the check box to allow the
device to classify the DNS requests based on the RD flag set in
the packet.
• Security (DNSSEC): Select the check box to allow the device to
classify DNS requests based on the DNSSEC bit set in the
packet.
Nested Allows you to combine
rules with logical
operators to create
nested rules. Up to four
rules can be combined in
single role.
Under the Settings for Nested Rule, provide the following
information:
• Build or directly input the expression:
1 Select a rule from the Rule list
2 Select an operator AND or OR from the Operator list.
NOTE: Under the NOT column, select the check box next to the rule
that you want to exclude from the nested rules.
3 Repeat the step 1 and step 2 to add more rules to the nested
rule.
You can also directly enter the expression of the nested rule in the
Input Expression field.
• Select the master rule from the Master Rule list.
NOTE: If a master rule is not specified, the default master in the
first rule is the nested rule.
TABLE 4 Rule type settings (Continued)
Rule Type Function Your Action