557
Related commands
blacklist global enable
blacklist user
dns-flood action
Use
dns-flood action
to specify global actions against DNS flood attacks.
Use
undo dns-flood action
to restore the default.
Syntax
dns-flood action
{
drop
|
logging
} *
undo dns-flood action
Default
No global action is specified for DNS flood attacks.
Views
Attack defense policy view
Predefined user roles
network-admin
mdc-admin
Parameters
drop
: Drops subsequent DNS packets destined for the victim IP addresses.
logging
: Enables logging for DNS flood attack events.
Examples
# Specify
drop
as the global action against DNS flood attacks in attack defense policy
atk-policy-1
.
<Sysname> system-view
[Sysname] attack-defense policy atk-policy-1
[Sysname-attack-defense-policy-atk-policy-1] dns-flood action drop
Related commands
dns-flood detect
dns-flood detect non-specific
dns-flood threshold
dns-flood detect
Use
dns-flood detect
to configure IP address-specific DNS flood attack detection.
Use
undo dns-flood detect
to remove the IP address-specific DNS flood attack detection
configuration.
Syntax
dns-flood detect
{
ip ipv4-address
|
ipv6 ipv6-address
} [
vpn-instance vpn-instance-name
] [
port
port-list
] [
threshold threshold-value
] [
action
{ {
drop
|
logging
} * |
none
} ]
undo dns-flood
detect
{
ip ipv4-address
|
ipv6 ipv6-address
} [
vpn-instance vpn-instance-name
]
