Citrix recently (17.12.2019) released an advisory warning of a critical vulnerability in all Citrix ADC and Gateway platforms. Late Friday (10.1.2020) multiple working exploits were posted for everyone to be accessible. Here are some tipps on how to identify whether your device is compromised.Continue reading “Citrix ADC CVE-2019-19781 exploited! What now?”
The extensive customization capabilities and benefits of the RfWebUI Theme just amaze me over and over again. This time I was tasked to add a localized custom string to the logon page. Here’s how I did it!Continue reading “Adding custom localized multi-language strings to NetScaler RfWebUI Theme”
There might be a time when the default shipped languages aren’t enough and you need to add additional language support – in my case Italian. Here’s how. Continue reading “Adding additional languages to NetScaler RfWebUI Theme”
NetScalers Enhanced Authentication Feedback is, despite being highly debatable from a security standpoint, a great feature in terms of usability.
Recently one of my customers had the requirement to enable it. But surprisingly we only received the error codes (4009, 4007, etc.) – not the error messages. Continue reading “NetScaler Enhanced Authentication Feedback throws Error Codes with RfWebUI Theme”
Last week I was doing a write-up on how to replace MAC-Based Forwarding (MBF) with Policy Based Routing (PBR). This week I want to give you some background on why this should be your general Best Practice on the example of Hyper-V. Continue reading “NetScaler services flapping with Hyper-V”
Enabling MAC-Based Forwarding (MBF) has become the go-to solution solution for multi-arm NetScaler deployments and routing issue bodging in a majority of the NetScaler deployments I’ve seen. But is it the right solution for the problems? Usually not. Continue reading “Disable MAC-Based Forwarding – Enable Policy Based Routing!”
Global Server Load Balancing (GSLB) offers a lot of cool load balancing mechanisms out of the box. Active/Active, Active/Passive, Geo-IP based, etc. But what if you want to combine multiple of those in a cascaded/hierarchical load balancing decision? Continue reading “Cascaded Hierarchical GSLB Configurations”