Shows Domain Name System (DNS) cache analytics statistics for clients on a virtual router (VR).
| dns | Domain Name System. |
| cache | DNS cache. |
| analytics | Specifies showing information about the DNS cache analytics. |
| statistics | Specifies showing information about the DNS cache analytics statistics. |
| client | Specifies client statistics. |
| client_ip | Specifies which client by IP address. |
| domain | Specifies detailed domain. |
| domain_name | Specifies the domain. |
| detail | Displayed detailed statistics information. |
| vr | Specifies showing DNS cache analytics statistics on a VR. |
| vr_name | Specifies the VR name. If not specified, the VR of the current command context is used. |
If no VR name is specified, the VR of the current command context is used.
This command displays DNS analytics statistics for a given VR. This command displays the total DNS queries received from clients, displaying IPv4 and IPv6 queries separately. For a specific client IP address, this command displays domain names queried by the client, number of DNS queries received for the domains, and the time stamp of the last received DNS query. Also, for a particular domain, it displays a detailed view of the specific domain with all the DNS query time stamps separately for IPv4 and IPv6.
The following example shows DNS cache analytics statistics for all clients on the current VR:
# show dns cache analytics statistics
DNS Cache : Enabled
DNS Cache Analytics : Enabled
# IPv4 # IPv6
Client IP Queries Queries
---------------------------------------- ---------- ----------
10.127.2.251 21928 2682
The following example shows DNS cache analytics statistics for the client at IP address "1.1.1.1" at domain "wwww.aaaaa.com" on the current VR:
# show dns cache analytics statistics client 1.1.1.1 domain www.aaaaa.com
DNS Cache : Enabled
DNS Cache Analytics : Enabled
Domain Name Query Type Query Time
------------------------------ --------------- ------------------------------
www.aaaaa.com IPv4 [A] Thu Jan 15 06:56:07 1970
IPv4 [A] Thu Jan 15 06:56:07 1970
Number of DNS IPv4 [A] Queries: 2
Number of DNS IPv6 [AAAA] Queries: 0
Flags: > – Indicates Domain Name is truncated past 44 characters.
The following example shows detailed DNS cache analytics statistics for the client at IP address "10.127.2.200" on the current VR:
# show dns cache analytics statistics client 10.127.2.200 detail Domain Name : geo.yahoo.com # IPv4 Queries : 1 # IPv6 Queries : 0 Last IPv4 Query Time : Fri Jan 4 06:48:56 2019 Last IPv6 Query Time : Domain Name : acdn.adnxs.com # IPv4 Queries : 1 # IPv6 Queries : 0 Last IPv4 Query Time : Fri Jan 4 06:48:59 2019 Last IPv6 Query Time : Domain Name : cdn.adnxs.com # IPv4 Queries : 1 # IPv6 Queries : 0 Last IPv4 Query Time : Fri Jan 4 06:48:59 2019 Last IPv6 Query Time : Domain Name : sync.adaptv.advertising.com # IPv4 Queries : 1 # IPv6 Queries : 0 Last IPv4 Query Time : Fri Jan 4 06:49:02 2019 Last IPv6 Query Time : Domain Name : ocsp.digicert.com # IPv4 Queries : 1 # IPv6 Queries : 0 Last IPv4 Query Time : Fri Jan 4 06:49:02 2019 Last IPv6 Query Time : Domain Name : teredo.ipv6.microsoft.com # IPv4 Queries : 1 # IPv6 Queries : 0 Last IPv4 Query Time : Fri Jan 4 06:49:18 2019 Last IPv6 Query Time :
The following example shows DNS cache analytics statistics for the domain "www.google.com" on the current VR:
# show dns cache analytics statistics domain www.google.com
# IPv4 # IPv6
VR Name Client IP Queries Queries
-------------------------------- ---------------------------------------- ---------- ----------
VR-Default 192.168.1.1 1 1
Durga 192.168.2.1 2 0
This command was first available in ExtremeXOS 30.3.
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.