[NetScaler] Squid may record "error:transaction-end-before-headers" when be the service of LB

In a NetScaler Load Balancing deployment, you may have a Squild proxy server configured as a NetScaler LB Service. And you may observe "error:transaction-end-before-headers" recorded on Squid server. The error apears periodically with several seconds interval. Log sample: Timestamp xxxx...

CVE-2018-5314

Command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway 11.0 before build 70.16, 11.1 before build 55.13, and 12.0 before build 53.13; and the NetScaler Load Balancing instance distributed with NetScaler SD-WAN/CloudBridge 4000, 4100, 5000 and 5100 WAN Optimization Edition...

Restrict access to certain URLs based on the Source client IP

Restrict certain IPs who should not be able to access certain URLs when they hit the Load balancing virtual server on the NetScaler...