What is Block Report

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This is a report sent by DataNodes to the Active NameNode periodically. The report contains metadata about the blocks stored on DataNodes.

Other related questions:
How do I block a Designated Port. on an S series switch?
You can perform the following operations to block a Designated Port on an S (except the S1700) series switch: 1. Run the stp priority command to set the priority of a switch. 2. Run the stp cost command to set the path cost of a port. 3. Run the stp port priority command to set the priority of the port.

What should I do if the account is locked
By default, a locked account is automatically unlocked after 5 minutes. You can wait until the account is automatically unlocked, and enter the correct user name and password to log in to the device again. You can also log in to the device using the CLI mode when the account is locked, and run the local-user user-name state active command in the AAA view to unlock the account.

Configure a CE series switch to filter packets using a traffic policy
- Prevent a specified host from accessing a network. In the following example, the switch is configured to prevent the PC with IP address 192.168.1.10 from accessing the network. <HUAWEI> system-view [~HUAWEI] acl 2000 [*HUAWEI-acl4-basic-2000] rule deny source 192.168.1.10 0.0.0.0 [*HUAWEI-acl4-basic-2000] quit [*HUAWEI] traffic classifier c1 [*HUAWEI-classifier-c1] if-match acl 2000 [*HUAWEI-classifier-c1] quit [*HUAWEI] traffic behavior b1 [*HUAWEI-behavior-b1] deny [*HUAWEI-behavior-b1] quit [*HUAWEI] traffic policy p1 [*HUAWEI-trafficpolicy-p1] classifier c1 behavior b1 [*HUAWEI-trafficpolicy-p1] quit [*HUAWEI] interface 10ge 1/0/1 [*HUAWEI-10GE1/0/1] traffic-policy p1 inbound [*HUAWEI-10GE1/0/1] quit [*HUAWEI] commit - Prevent all devices on a specified network segment from accessing a network. In the following example, the switch is configured to prevent all devices on the network segment 192.168.1.0 from accessing the network. <HUAWEI> system-view [~HUAWEI] acl 2000 [*HUAWEI-acl4-basic-2000] rule deny source 192.168.1.0 0.0.0.255 [*HUAWEI-acl4-basic-2000] quit [*HUAWEI] traffic classifier c1 [*HUAWEI-classifier-c1] if-match acl 2000 [*HUAWEI-classifier-c1] quit [*HUAWEI] traffic behavior b1 [*HUAWEI-behavior-b1] deny [*HUAWEI-behavior-b1] quit [*HUAWEI] traffic policy p1 [*HUAWEI-trafficpolicy-p1] classifier c1 behavior b1 [*HUAWEI-trafficpolicy-p1] quit [*HUAWEI] interface 10ge 1/0/1 [*HUAWEI-10GE1/0/1] traffic-policy p1 inbound [*HUAWEI-10GE1/0/1] quit [*HUAWEI] commit - Filter specified protocol packets. - Prevent SMTP packets with TCP destination port 25 from passing through a switch. - Prevent POP3 packets with TCP destination port 110 from passing through a switch. - Prevent HTTP packets with TCP destination port 80 from passing through a switch. <HUAWEI> system-view [~HUAWEI] acl 3000 [*HUAWEI-acl4-advance-3000] rule deny tcp destination-port eq 25 [*HUAWEI-acl4-advance-3000] rule deny tcp destination-port eq 110 [*HUAWEI-acl4-advance-3000] rule deny tcp destination-port eq 80 [*HUAWEI-acl4-advance-3000] quit [*HUAWEI] traffic classifier c1 [*HUAWEI-classifier-c1] if-match acl 3000 [*HUAWEI-classifier-c1] quit [*HUAWEI] traffic behavior b1 [*HUAWEI-behavior-b1] deny [*HUAWEI-behavior-b1] quit [*HUAWEI] traffic policy p1 [*HUAWEI-trafficpolicy-p1] classifier c1 behavior b1 [*HUAWEI-trafficpolicy-p1] quit [*HUAWEI] interface 10ge 1/0/1 [*HUAWEI-10GE1/0/1] traffic-policy p1 inbound [*HUAWEI-10GE1/0/1] quit [*HUAWEI] commit

Blocking a specified domain name on the firewall
For V100R001 and V5, you can configure a security policy, set the destination address to a domain name group that contains the list of domain names to be blocked, and set the action to block to block these domain names. You can also configure URL filtering to blacklist the domain names to be blocked so as to block them. For V300R001, you can only configure URL filtering to blacklist the domain names to be blocked so as to block them.

How to disable wireless signals of a WLAN device
To save energy or ensure security, run the following commands to disable AP radios or WLAN services: 1. Disable a specified radio. - For AC+Fit AP networking V200R005: [AC6605] wlan [AC6605-wlan-view] ap 0 radio 0 [AC6605-wlan-radio-0/0] undo radio enable For V200R006: [AC6605] wlan [AC6605-wlan-view] ap-id 1 [AC6605-wlan-ap-1] radio 0 [AC6605-wlan-radio-1/0] radio disable Warning: This action may cause service interruption. Continue?[Y/N]y - For Fat APs V200R005: [Huawei] interface wlan-radio 0/0/0 [Huawei-Wlan-Radio0/0/0] undo radio enable For V200R006: [Huawei] interface wlan-radio 0/0/0 [Huawei-Wlan-Radio0/0/0] radio disable Warning: This action may cause service interruption. Continue?[Y/N]y 2. Prevent users from accessing the WLAN in the specified time range. For V200R005: [AC6605] wlan [AC6605-wlan-view] auto-off service ess service-set id 0 start-time 01:00:00 end-time 07:00:00 //Disable the service set with ID 0 from 1:00:00 to 7:00:00. For V200R006: [HUAWEI]wlan [HUAWEI-wlan-view]vap-profile name vap1 [HUAWEI-wlan-vap-prof-vap1]auto-off service start-time 1:00:00 end-time 7:00:00 //Disable a VAP from 1:00:00 to 7:00:00. 3. Disable an AP radio in a scheduled time using the auto-off service radio command (V200R005). For AC+Fit AP networking: [AC6605] wlan [AC6605-wlan-view] auto-off service radio ap-id 0 radio-id 0 start-time 1:00:00 end-time 7:00:00 //Disable radios 0 of AP 0 from 1:00:00 to 7:00:00. For Fat APs: [Huawei] wlan [Huawei-wlan-view] auto-off service radio interface wlan-radio0/0/0 start-time 1:00:00 end-time 7:00:00 //Disable AP interface wlan-radio0/0/0 from 1:00:00 to 7:00:00.

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