Tag: Citrix
Notes from the field: NetScaler VPX & Intel Xeon Gold
Quite recently I came across an issue when deploying a VPX instance on VMware 6.5, which resulted in a bug of the VPX image and underlying physical hardware. For reference the following hardware was backing the hypervisor: Supermicro SYS-2029U-E1CR25M Intel(R) Xeon(R) Gold 5118 CPU @ 2.30GHz VMware ESXi, 6.5.0, 7967591 with vSAN NetScaler VPX 12.0…
Notes from the field: NetScaler maxloginattempts
Came across a very peculiar issue at a customer in regards to the values: Max Login Attempts Failed Login Timeout As soon as a value has been put in you could not reset it to the default value of 0, not from the GUI or CLI it would just not accept it as a value…
Notes from the field: uberAgent to the rescue!!
We all know it, the once in a while “it’s slow logging on..” and then it gets dropped at the escalation desk for a resolution. So I got the call for troubleshooting this issue. Since I knew from previous experiences that uberAgent is the troubleshooting tool you will want for this I contacted them and…
Notes from the lab: NetScaler VPX nsnet_connect prevents logon
When I started to rebuild my lab I came across the most strangest thing when configuring my NetScaler’s again. First a little background regarding my setup: VMware ESXi 6.5u1 Hypervisors NetScaler VPX 1000 Platinum Appliances Distributed vSwitches with vlan trunks enabled Dedicated NSVLAN for management (tagged) Data transport vlan tagged Whilst configuring and setting…
Notes from the field: XenDesktop RemotePC and Multi Licensing
Recently I got involved at a customer location which was going to use Remote PC catalogs in combination with their XenDesktop / XenApp 7.15 environment. This was no problem whatsoever to configure but on closer testing I encountered a bug that when you create for example a delivery group called “Windows 10 Remote PC” and…
Notes from the lab: NetScaler Secure Web Gateway
Finally had some time to implement the NetScaler Secure Web Gateway in my lab. I’ve put together a small document with my findings attached here: NFTL_TF_NSWG comments or questions please let me know. Cheers.
Notes from the lab: Windows Server 2016 black screen when launching any application
I came across an issue in my lab environment where the screen will go black while launching a session on Windows Server 2016. This is with XenApp/XenDesktop 7.15 LTSR The following registry entry: DisableLogonUISuppression (D WORD Value 0) did not resolve the issue as stated in the following articles: https://support.microsoft.com/en-us/help/4034661/windows-10-update-kb4034661 and https://support.citrix.com/article/CTX225819 Ultimatly after some…
Notes from the field: XenMobile Certificate Based Authentication lessons learned
Throughout the XenMobile deployments with Certificate Based Authentication(CBA) I came across some items which I thought was worth mentioning. 1. CBA up until Secure Mail 10.6.20 / Secure Hub 10.6.20 was requesting new certificates on SSL exceptions, in effect the exceptions were triggered on every SSL connection error that occurred and thus requesting a new…
Notes from the field: Be Proactive! Apple ATS is coming
For those who are not aware Apple has an upcoming change regarding App Transport Security (ATS) https://developer.apple.com/news/?id=12212016b The date it should be in effect was originally January 2017… but was pushed back for migration purposes, and the new date is yet a mystery. It will have impact! Be proactive and check your XenMobile / NetScaler…
Notes from the field: NetScaler SDX LACP Flapping issue
I came across a peculiar issue regarding a new NetScaler SDX 14020 setup in combination with a Cisco Nexus C9372-PX-E and C9336PQ infrastructure, a new buildup of the SDX/VPX with multiple HA instances spinning and a working environment. LA sets configured for HA probes and everything nice and easy separated through vlan access. Long story…