Looks like the new 5.11 linux kernel has been released! Look at the article below for more information!
Linux Kernel 5.11 Released With Support for Wi-Fi 6E, RTX ‘Ampere’ GPUs, Intel Iris Xe and More
Citrix has announced they entering into an agreement to acquire Wrike! Check below for the news article of das news!
https://www.citrix.com/news/announcements/jan-2021/citrix-announcement.html?fbclid=IwAR32DO5ad9-oba8_Sb9mq7CDnMVcoNaQGojqvwoxi8Z_5xxzgbyI_SR8zj0
Looks like some fun for the new 20H2 of das Windows 10.
Yep…. The Chromium based Edge browser, of which I have actually came to enjoy using, is going to replace the OLD Edge browser in the new 20H2. But…… There’s a catch! Wanna guess!? That’s right… Survey says…… You can’t uninstall it. It is now a part of the collective. AND…. It is the default browser! Whodathunkit!? So something to think about when you be rolling out nice, new and shiny 20H2 on your CVAD VDI. Ok. Now nothing to see here. Move along.
Greetings and such! So there is threat advisory out there abouts on DTLS Amplification DDoS for the ADC. The CTX article right here should lead you the right way with the checking and the remediation for it!
https://support.citrix.com/article/CTX289674
This is something to check and get ahead of so that you don’t run into a potential issue!
May 2020 leave heartily and 2021 not be 2020 remastered!
Be safe this holiday season! Spend time with what’s important! Make sure and take some time to unplug and reflect on the year. Make the next one better than this one. I mean, 2020 was kind of a rather peculiar year. So it stands to reason a better year is attainable!
We need more power from the warp core! Captain, I’m givin her all she’s got! Ran across something interesting. Something that I should have thought of before but for some reason, I did not. Windows default power management usually is set for balance even on servers. Didn’t think about it being something similar on Linux distros. It appears that is the case! So…… What I found in an issue with some lag and latency, is that Ubuntu and some other distros use ondemand as a CPU scaling governor as the default power scheme. There are a lot of write-ups on the various scaling governor settings available, so I won’t go into all of those. I will show how to set it to performance. I found that CentOS has this as well, but I am working on how to get it set to performance and will add that here as soon as I get the howto on that. This becomes applicable for your Linux VDI that you could be supporting in your Citrix VDI environment and could run into audio issues or are experience lag with multi-core systems.
So here is the way to set the scaling governor to performance on Ubuntu systems. There are two ways depending on if you are running older than 18.04 or newer than 18.04.
For 18.04 Ubuntu and newer:
Open console and type “cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor” to see what it is set to. If it is set to “ondeman,” it is governing the procs. To change to “performance,” type “echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor.” To confirm the change, type “cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor” to make sure it is showing performance.
For earlier than 18.04 Ubuntu: (from https://itectec.com/ubuntu/ubuntu-how-to-set-performance-instead-of-powersave-as-default/)
Open nano or vi and edit /etc/rc.local and insert these lines before the last line containing exit 0:
sleep 120 # Give CPU startup routines time to settle.
cpupower frequency-set --governor performance
Happy computing with thy VDI! I’ll post the change for CentOS / RedHat when I have the settings available!
So we have found an interesting issue with CVAD 1912LTSRCU1 and SEP 14.3. Profiles no likey. There is a telemetry service that even if it is not used, it will lock a certain file or two in the C:\users\%username%\AppData\Local\Microsoft\Windows\WER\ReportArchive and ReportQueue and will freeze the profile and won’t allow you to complete the logoff and profile sync. The files are locked by the system and you can’t delete them. This will clear AFTER you reboot the server, but it will prevent the user from accessing again until the reboot occurs as Citrix still sees it logged on.
This is what you need to fix it. It has a good walkthrough of the requirements to fix it! They are working on a solution and should be later this year for it to be available. Stay safe with thy AV software!
Something interested that we found in our environment. We were having to do some reporting and ran into an issue where a username wasn’t being found in the reporting from Director. We had to do some looking and checking profile stores to check the user we thought it might have been and had to compare SIDs to confirm the user was the same. But wait, there is hope! And a fix!
https://support.citrix.com/article/CTX279446
We found that there is a known issue with the Monitor Database not updating in the MonitorDate.User table. It appears to be in 1909 and newer (ref- CVADHELP-14700). Shout out to the person that found this! It saved use some searching and diggin! Reach out to your Citrix contact and request that private fix if you need it!
Get your fix on!
https://support.citrix.com/article/CTX276688
Bit of an update that needs some attention! Make sure and go out and get this applied on your ADCs!