2020. 1. 27. 15:10ㆍ카테고리 없음
With Windows it is possible to connect Outlook to tasks in Sharepoint. On the Mac, when I go to a task list then in Safari I do not have the option at all to connect the task list to Outlook; in. The ESXi Mac learning dvFilter is compatible with ESXi 5.0 and higher. Download here. Check out William Lam's detailed post and also post by Andreas Peetz who is also showing how to install it from the V-Online depository. I hope this post and video has helped someone to learn more about nested ESXi and VMware virtualization technology.
- William Lam On Twitter: W00tinstalling Powershell For Mac Download
- William Lam On Twitter W00t Installing Powershell For Mac
PowerShell Module for Detecting Vulnerabilities to Speculative Execution Microsoft today (Jan. 4th, 2018) provided a PowerShell module to detect vulnerabilities related to Speculative Execution side-channel attacks. This vulnerability affects Intel, AMD and ARM processors, along with operating systems.
You can review the Microsoft security advisory ADV18002. This will install the module to your local machine Install-Module SpeculationControl.if you are having issues with install the module via the command above you can find the module on my github Get-SpeculationControlSettings The above command will analyze your system and will show you the vulnerabilities that are present on your system as seen below in the image. Currently this module works on Windows 10 (RTM, 1511, 1607, 1703, 1709), Windows 8.1, and Windows 7 SP1. The following link will show all some additional information from Microsoft about the module and fixes.Stuart.
Update: From William Lam’s Twitter Account ( Thanks Erik) –. See for VMware Appliances.
ESXi 5.5 patches in works, no ETA. VC patch in works to deliver Microcode update for EVC, no ETA.
More detailed FAQ will be published in coming week now that Embargo is lifted. Update 2: From William Lam’s Twitter Account – New top level VMware KB has just been published covering all things related to #Spectre & #Meltdown Author Posted on Categories Tags,.
I’ve been running my NestedESXi for about eight months now but in all that time I had not installed or enabled the. As a quick refresher the addresses the issues with nested ESXi hosts and the impact that promiscuous mode has when enabled on virtual switches. In a nutshell, network traffic will hit all the network interfaces attached to the portgroup which reduces network throughput and also increases latency and impacts CPU. The ESXi MAC Learn dvFilter Fling was released about two years ago and its a must have for those running homelabs or work labs running nested ESXi. However earlier this year a new fling was released that improves on the dvFilter and addresses some of it’s limitations.
William Lam On Twitter: W00tinstalling Powershell For Mac Download
The new native MAC Learning VMkernel module is called. ESXi Learnswitch is a complete implementation of MAC Learning and Filtering and is designed as a wrapper around the host virtual switch. It supports learning multiple source MAC addresses on virtual network interface cards (vNIC) and filters packets from egressing the wrong port based on destination MAC lookup. This substantially improves overall network throughput and system performance for nested ESX and container use cases. For a more in depth look at it’s functionality head over to William Lams blog post. DvFilter vs Learnswitch: I was interested to see if the new Learnswitch offered any significant performance improvements over the dvFilter in addition to its main benefits. I went about installing and enabling the dvFilter in my lab and ran some basic performance tests using Crystal Disk Mark.
Before that, I ran the performance test without either installed as a base. Firstly to see what the network traffic looks like hitting the nested hosts you can see from the ESXTOP output below that each host is dealing with about the same amount of received packets. Overall throughput is reduced when this happens. The CPU usage alone shows the value in having the dvFilter or Learnswitch installed when running nested ESXi hosts.
With the baseline testing done I installed and enabled the dvFilter and then ran the same tests. For a detailed look at how to install the dvFilter (just in case you don’t fit the requirements for using the Learnswitch module) check out my initial post on the dvFilter. Having gone through that I went about uninstalling the dvFilter and installing and configuring the Learnswitch. Like the dvFilter you need to download and install am ESXi software bundle but unlike the dvFilter, you need to reboot the host to enable the Learnswitch module. And finally to have a look at the improvement in CPU performance with the modules installed you can see below a timeline showing the performance tests run at different times across the last 24 hoursagain a significant improvement looking at the graphs on the left hand side which was during the testing without any module and then moving across to the dvFilter test with the Learnswitch test on the right hand side. It does seem like the Learnswitch is a little better on CPU, but can’t be 100% with my limited testing.
A couple of weeks ago at VeeamON we announced the which is a lightweight SDN appliance that has been released for free. While the main messaging is focused around, Veeam PN can be deployed as a stand alone solution via a from the veeam.com site.
While testing the product through it’s early dev cycles I immediately put into action a use case that allowed me to access my homelab and other home devices while I was on the roadall without having to setup and configure relatively complex VPN or remote access solutions. There are a that do what Veeam PN does and a lot of them are decent at what they do, however the biggest difference for me with comparing say the VPN functionality with a pfSense is that Veeam PN is purpose built and can be setup within a couple of clicks. The underlying technology is built upon OpenVPN so there is a level of familiarity and trust with what lies under the hood. The other great thing about leveraging OpenVPN is that any Windows, MacOS or Linux client will work with the configuration files generated for point-to-site connectivity. Homelab Remote Connectivity Overview: While on the road I wanted to access my homelab/office machines with minimal effort and without the reliance on published services externally via my entry level Belkin router. I also didn’t have a static IP which always proved problematic for remote services. At home I run a desktop that acts as my primary Windows workstation which also has VMware Workstation installed.
I then have my server that has ESXi installed and runs my NestedESXi lab. I need access to at least RDP into that Windows workstation, but also get access to the management vCenter, SuperMicro IPMI and other systems that are running on the 192.168.1.0/24 subnet.
As seen above I also wanted to directly access workloads in the NestedESXi environment specifically on the 172.17.0.1/24 and 172.17.1.1/24 networks. A little more detail on my use case in a follow up post but as you can see from the diagram above, with the use of the on my MBP I am able to create a point-to-site connection to the Veeam PN HUB which is in turn connected via site-to-site to each of the subnets I want to connect into. Deploying and Configuring Veeam Powered Network: As mentioned above you will need to download the Veeam PN OVA from the veeam.com website.
William Lam On Twitter W00t Installing Powershell For Mac
This describes where to get the OVA and how to deploy and configure the appliance for first use. If you don’t have a DHCP enabled subnet to deploy the appliance into you can configure the network as a static by accessing the VM console, logging in with the default credentials and modifying the /etc/networking/interface file as described. Components. Veeam PN Hub Appliance x 1. Veeam PN Site Gateway x number of sites/subnets required. OpenVPN Client The OVA is 1.5GB and when deployed the Virtual Machine has the base specifications of 1x vCPU, 1GB of vRAM and a 16GB of storage, which if thin provisioned consumes a tick over 5GB initially.
Networking Requirements. Veeam PN Hub Appliance – Incoming Ports TCP/UDP 1194, 6179 and TCP 443. Veeam PN Site Gateway – Outgoing access to at least TCP/UDP 1194. OpenVPN Client – Outgoing access to at least TCP/UDP 6179 Note that as part of the initial configuration you can configure the site-to-site and point-to-site protocol and ports which is handy if you are deploying into a locked down environment and want to have Veeam PN listen on different port numbers. In my setup the Veeam PN Hub Appliance has been deployed into Azure mainly because that’s where I was able to test out the product initially, but also because in theory it provides a centralised, highly available location for all the site-to-site connections to terminate into. This central Hub can be deployed anywhere and as long as it’s got HTTPS connectivity configured correctly you can access the web interface and start to configure your site and standalone clients.
Configuring Site Clients (site-to-site): To complete the configuration of the Veeam PN Site Gateway you need to. When you register a client, Veeam PN generates a configuration file that contains VPN connection settings for the client. You must use the configuration file (downloadable as an XML) to set up the Site Gateway’s. Referencing the digram at the beginning of the post I needed to register three seperate client configurations as shown below. From there I imported the site configuration file into each corresponding Site Gateway that was generated from the central Hub Appliance and on each one, all three networks where joined using site-to-site connectivity to the central Hub. Configuring Remote Clients (point-to-site): To be able to connect into my home office and home lab which on the road the final step is to register a standalone client from the central Hub Appliance. Again, because Veeam PN is leveraging OpenVPN what we are producing here is an OVPN configuration file that has all the details required to create the point-to-site connectionnoting that there isn’t any requirement to enter in a username and password as Veeam PN is authenticating using SSL authentication. You can see above that the 192.168.1.0, 172.17.0.0 and 172.17.0.1 static routes have been added and set to use the tunnel interfaces default gateway which is on the central Hub Appliance.
This means that from my MPB I can now get to any device on any of those three subnets no matter where I am in the worldin this case I can RDP to my Windows workstation, connect to vCenter or ssh into my ESXi hosts. In computing, there is one thing you shouldn’t compromise onand that thing is storage. This carries over to Lab or NestedESXi environments as poor lab performance can be just as frustrating as production performance issues. I’ve used a number of nested storage platform’s for my lab environments and I’m always on the lookout for alternative solutions. When asked my to write a short introductory post on his new how-to guide Build Your Own NetApp ONTAP 9 Lab I decided to flick through the guide to check it out and see if it could add any value to my future plans for a homelab. The e-book is professionally laid out and has excellent diagrams, notes and step by stepit’s extremely comprehensive.
Late last year I was load testing against a new storage platform using both physical and nested ESXi hostsat the time I noticed decreased network throughput while using Load Test VMs hosted on the nested hosts. I wrote and reached out to who responded with an explanation as to what was happening and why promiscuous mode was required for nested ESXi installs. Forward to VMworld 2014 and in a discussion I had with William at The W Bar (where lots of great discussions are had) after the Official Party he mentioned that a new Fling was about to be released that addresses the issues with nested ESXi hosts and promiscuous mode enabled on the Virtual Switches. As William explains in his he took the problem to VMware Engineering who where having similar issues in their R&D Labs and have come up with a workaroundthis workaround is now an official Apart from feeling a little bit chuffed that I sparked interest in this problem which has resulted in a fix, I decided to put it to the test in my lab.
I ran the same tests that I ran last year. Running one load test on a 5.5 ESXi host nested on a physical 5.5 Host I saw equal network utilization across all 6 nested hosts. About even network throughput across all NICs on all Hosts that are set for Promiscuous ModeOverall throughput is reduced After installing the VIB on the Physical host, you have to add the Advanced Virtual Machine settings to each Nested Host to enable the MAC Learning. Unless you do this via an API call you will need to shutdown the VM to edit the VMX/Config. I worked through a set of PowerCLI commands shown below to bulk add the Advanced Setting to running Nested Hosts. Below works for any VM matching ESX in a resource pool and has two NICs. As William mentions in his post this is a no brainer install for anyone using nested ESXi hosts for lab workthinking about further implications of this fix I am thinking about the possibility of being able to support full nested environments within Virtual Data Centers without the fear of increased host CPU and decreased network throughputfor this to happen though VMware would need to change their stance on supportability of Nested ESXi environmentsbut this, together with the certainly makes nested hosts all that more viable.