Citrix ADC HTTP Denial of Service Protection Counters

This article contains information about the newnslog HTTP Denial of Service Protection (HDoSP) counters and its brief description.

Using the Counters

Log on to the ADC using an SSH client, change to SHELL, navigate to the /var/nslog directory, and then use the ‘nsconmsg’ command to see comprehensive statistics using the different counters available. For the detailed procedure refer to Citrix Blog – NetScaler ‘Counters’ Grab-Bag!.

The newnslog HDoSP Counters

The following table lists the newnslog HDoSP counters with a simple description of the counter.

Counter

Description

dos_tot_cond_triggered

This counter tracks the number of times the NetScaler appliance triggers the DoS JavaScript when a condition is true.

dos_tot_valid_cookies

This counter tracks the number of clients from whom the NetScaler appliance received a valid DoS cookie.

dos_tot_dospri_clients

This counter tracks the number of valid clients that are given DoS priority.

dos_tot_avg_valid_clients

This counter tracks the average number of DoS clients that returns a valid DoS cookie.

dos_tot_avg_dospri_clients

This counter tracks the average number of clients that are given DoS priority.

dos_peer_ip

This counter tracks the IP address of the service to which the policy is bound.

dos_peer_ip_str

This counter tracks the IP address of the service to which the policy is bound

dos_peer_port

This counter tracks the port address of the service to which the policy is bound.

dos_cur_qsize

This counter tracks the current queue size of the server to which the policy is bound.

dos_cur_jsrate

This counter tracks the current rate at which JavaScript is sent in response to client requests.

dos_cur_resprate

This counter tracks the current rate at which the server to which the policy is bound is responding.

dos_cur_cltdetect_rate

This counter tracks the current ratio of JavaScript send rate to the server response rate (Client detect rate).

tot_js_sent

This counter tracks the total number of DoS JavaScript transactions performed for the policy.

tot_js_Bytes_sent

This counter tracks the total number of DoS JavaScript bytes sent for this policy.

tot_js_refused

This counter tracks the number of times the DoS JavaScript is not sent because the set JavaScript rate is not met for this policy.

tot_js_non_getpost

This counter tracks the number of non-GET and non-POST requests for which DoS JavaScript is sent.

dos_tot_valid_clients

This counter tracks the total number of valid DoS cookies received for this policy.

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