UpdateFirewallRule
Updates the specified firewall rule.
Request Syntax
{
"Action": "string
",
"BlockOverrideDnsType": "string
",
"BlockOverrideDomain": "string
",
"BlockOverrideTtl": number
,
"BlockResponse": "string
",
"FirewallDomainListId": "string
",
"FirewallDomainRedirectionAction": "string
",
"FirewallRuleGroupId": "string
",
"Name": "string
",
"Priority": number
,
"Qtype": "string
"
}
Request Parameters
For information about the parameters that are common to all actions, see Common Parameters.
The request accepts the following data in JSON format.
- Action
-
The action that DNS Firewall should take on a DNS query when it matches one of the domains in the rule's domain list:
-
ALLOW
- Permit the request to go through. -
ALERT
- Permit the request to go through but send an alert to the logs. -
BLOCK
- Disallow the request. This option requires additional details in the rule'sBlockResponse
.
Type: String
Valid Values:
ALLOW | BLOCK | ALERT
Required: No
-
- BlockOverrideDnsType
-
The DNS record's type. This determines the format of the record value that you provided in
BlockOverrideDomain
. Used for the rule actionBLOCK
with aBlockResponse
setting ofOVERRIDE
.Type: String
Valid Values:
CNAME
Required: No
- BlockOverrideDomain
-
The custom DNS record to send back in response to the query. Used for the rule action
BLOCK
with aBlockResponse
setting ofOVERRIDE
.Type: String
Length Constraints: Minimum length of 1. Maximum length of 255.
Required: No
- BlockOverrideTtl
-
The recommended amount of time, in seconds, for the DNS resolver or web browser to cache the provided override record. Used for the rule action
BLOCK
with aBlockResponse
setting ofOVERRIDE
.Type: Integer
Valid Range: Minimum value of 0. Maximum value of 604800.
Required: No
- BlockResponse
-
The way that you want DNS Firewall to block the request. Used for the rule action setting
BLOCK
.-
NODATA
- Respond indicating that the query was successful, but no response is available for it. -
NXDOMAIN
- Respond indicating that the domain name that's in the query doesn't exist. -
OVERRIDE
- Provide a custom override in the response. This option requires custom handling details in the rule'sBlockOverride*
settings.
Type: String
Valid Values:
NODATA | NXDOMAIN | OVERRIDE
Required: No
-
- FirewallDomainListId
-
The ID of the domain list to use in the rule.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 64.
Required: Yes
- FirewallDomainRedirectionAction
-
How you want the the rule to evaluate DNS redirection in the DNS redirection chain, such as CNAME or DNAME.
Inspect_Redirection_Domain
(Default) inspects all domains in the redirection chain. The individual domains in the redirection chain must be added to the domain list.Trust_Redirection_Domain
inspects only the first domain in the redirection chain. You don't need to add the subsequent domains in the domain in the redirection list to the domain list.Type: String
Valid Values:
INSPECT_REDIRECTION_DOMAIN | TRUST_REDIRECTION_DOMAIN
Required: No
- FirewallRuleGroupId
-
The unique identifier of the firewall rule group for the rule.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 64.
Required: Yes
- Name
-
The name of the rule.
Type: String
Length Constraints: Maximum length of 64.
Pattern:
(?!^[0-9]+$)([a-zA-Z0-9\-_' ']+)
Required: No
- Priority
-
The setting that determines the processing order of the rule in the rule group. DNS Firewall processes the rules in a rule group by order of priority, starting from the lowest setting.
You must specify a unique priority for each rule in a rule group. To make it easier to insert rules later, leave space between the numbers, for example, use 100, 200, and so on. You can change the priority setting for the rules in a rule group at any time.
Type: Integer
Required: No
- Qtype
-
The DNS query type you want the rule to evaluate. Allowed values are;
-
A: Returns an IPv4 address.
-
AAAA: Returns an Ipv6 address.
-
CAA: Restricts CAs that can create SSL/TLS certifications for the domain.
-
CNAME: Returns another domain name.
-
DS: Record that identifies the DNSSEC signing key of a delegated zone.
-
MX: Specifies mail servers.
-
NAPTR: Regular-expression-based rewriting of domain names.
-
NS: Authoritative name servers.
-
PTR: Maps an IP address to a domain name.
-
SOA: Start of authority record for the zone.
-
SPF: Lists the servers authorized to send emails from a domain.
-
SRV: Application specific values that identify servers.
-
TXT: Verifies email senders and application-specific values.
-
A query type you define by using the DNS type ID, for example 28 for AAAA. The values must be defined as TYPENUMBER, where the NUMBER can be 1-65334, for example, TYPE28. For more information, see List of DNS record types
. Note
If you set up a firewall BLOCK rule with action NXDOMAIN on query type equals AAAA, this action will not be applied to synthetic IPv6 addresses generated when DNS64 is enabled.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 16.
Required: No
-
Response Syntax
{
"FirewallRule": {
"Action": "string",
"BlockOverrideDnsType": "string",
"BlockOverrideDomain": "string",
"BlockOverrideTtl": number,
"BlockResponse": "string",
"CreationTime": "string",
"CreatorRequestId": "string",
"FirewallDomainListId": "string",
"FirewallDomainRedirectionAction": "string",
"FirewallRuleGroupId": "string",
"ModificationTime": "string",
"Name": "string",
"Priority": number,
"Qtype": "string"
}
}
Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
- FirewallRule
-
The firewall rule that you just updated.
Type: FirewallRule object
Errors
For information about the errors that are common to all actions, see Common Errors.
- AccessDeniedException
-
The current account doesn't have the IAM permissions required to perform the specified Resolver operation.
This error can also be thrown when a customer has reached the 5120 character limit for a resource policy for CloudWatch Logs.
HTTP Status Code: 400
- ConflictException
-
The requested state transition isn't valid. For example, you can't delete a firewall domain list if it is in the process of being deleted, or you can't import domains into a domain list that is in the process of being deleted.
HTTP Status Code: 400
- InternalServiceErrorException
-
We encountered an unknown error. Try again in a few minutes.
HTTP Status Code: 400
- ResourceNotFoundException
-
The specified resource doesn't exist.
HTTP Status Code: 400
- ThrottlingException
-
The request was throttled. Try again in a few minutes.
HTTP Status Code: 400
- ValidationException
-
You have provided an invalid command. If you ran the
UpdateFirewallDomains
request. supported values areADD
,REMOVE
, orREPLACE
a domain.HTTP Status Code: 400
See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following: