Hello,
Just wanted to confirm my understanding on the different modes of deployment in PA.
Virtual Wire is an INLINE mode ( similar like IPS) and TAP mode is a passive monitoring mode.
So does that mean if I find an unlocked rack somewhere and I were to remove the ethernet from the switch/firewall in that rack and instead attach it to lets say ethernet1/1 on palo alto in a virtual wire mode, then connect ethernet 1/2 on the palo alto back to the port in the rack, then I can actually be snooping on all the traffic ? And more so not only snooping I can also block some traffic ? In TAP mode, it requires the switchport to be configured to TAP so I think I cannot snoop using TAP mode ?
Either way, I've lost Internet access in the virtual pc. I went into the Virtual PC settings, and set the Networking value to Shared Networking (NAT). Actually, I've tried every combination I can find, but I can't get from the virtual pc to the web.
Enable the integration features in the Virtual XP settings:Go to All Programs, find Windows Virtual PC, click it and find XP mode, right-click it, choose settings, find Integration Features, and check it off.Check in VPC Settings that your "Network" include integration for your network adapter card. See, in this example it is set as Adapter 2. (In this case there was a wired and wireless network card present, your desktop will only have one network card)
Alternatively, to set auto-integrate just enable it in the "Integration Features" below "Networking"..in the Setting Window. OR from the XP mode window, click ACTION > Enable Integration Features.Image 1Ok...since I'm a "new user" you don't get to see the image...sorry. I tried.
I have had problems with bridged mode on restricted/protected networks such as wifi hot spots simply because places such as Wifi hotspots usually use MAC address filtering, however, NAT mode usually fixes things.
Normally I choose public, which means my computer can't see or be found by other computers on the same network. That includes, unfortunately, the virtual machines I'm running. By setting the network to "work" (or even "home", though that seems a bit extreme), the VM can share the network access and everything is fine.
I can't see why this would matter, but I remembered that a while ago I had disabled IPv6 (don't need it on my home system, and just adds extra junk I don't care about to any WireShark captures I might make), so I tried re-enabling IPv6 on the host Windows 7 box, and then I booted up the XP mode VM, and everything was working fine again.
Because in Replace mode the replacement is done char by char, where Tab is one char, no matter how many chars are displayed. In Virtual-Replace-Mode visible length of the Tab (:h 'ts', :h 'sts') is used to replace the chars.
Virtual Machines Scale Sets provide a logical grouping of platform-managed virtual machines. With scale sets, you create a virtual machine configuration model, automatically add or remove additional instances based on CPU or memory load, and automatically upgrade to the latest OS version. Traditionally, scale sets allow you to create virtual machines using a VM configuration model provided at the time of scale set creation, and the scale set can only manage virtual machines that are implicitly created based on the configuration model.
Virtual Machine Scale Sets with Uniform orchestration use a virtual machine profile or template to scale up to desired capacity. While there is some ability to manage or customize individual virtual machine instances, Uniform uses identical VM instances. Individual Uniform VM instances are exposed via the Virtual Machine Scale Set VM API commands. Individual instances aren't compatible with the standard Azure IaaS VM API commands, Azure management features such as Azure Resource Manager resource tagging RBAC permissions, Azure Backup, or Azure Site Recovery. Uniform orchestration provides fault domain high availability guarantees when configured with fewer than 100 instances. Uniform orchestration is generally available and supports a full range of scale set management and orchestration, including metrics-based autoscaling, instance protection, and automatic OS upgrades.
One of the main advantages of Flexible orchestration is that it provides orchestration features over standard Azure IaaS VMs, instead of scale set child virtual machines. This means you can use all of the standard VM APIs when managing Flexible orchestration instances, instead of the Virtual Machine Scale Set VM APIs you use with Uniform orchestration. There are several differences between managing instances in Flexible orchestration versus Uniform orchestration. In general, we recommend that you use the standard Azure IaaS VM APIs when possible. In this section, we highlight examples of best practices for managing VM instances with Flexible orchestration.
Virtual Machine Scale Sets in Flexible Orchestration mode manage standard Azure VMs. You have full control over the virtual machine lifecycle, as well as network interfaces and disks using the standard Azure APIs and commands. Virtual machines created with Uniform orchestration mode are exposed and managed via the Virtual Machine Scale Set VM API commands. Individual instances aren't compatible with the standard Azure IaaS VM API commands, Azure management features such as Azure Resource Manager resource tagging RBAC permissions, Azure Backup, or Azure Site Recovery.
Application health monitoring allows your application to provide Azure with a heartbeat to determine whether your application is healthy or unhealthy. Azure can automatically replace VM instances that are unhealthy. For Flexible scale set instances, you must install and configure the Application Health Extension on the virtual machine. For Uniform scale set instances, you can use either the Application Health Extension, or measure health with an Azure Load Balancer Custom Health Probe.
Use the standard VM APIs and commands to retrieve instance Boot Diagnostics data and screenshots. The Virtual Machine Scale Sets VM boot diagnostic APIs and commands aren't used with Flexible orchestration mode instances.
I was having the similar issue when using VirtualBox on Ubuntu 12.04LTS. Now if anyone is using or has ever used Ubuntu, you might be aware that how things are hard sometimes when using shortcut keys in Ubuntu. For me, when i was trying to revert back the Host key, it was just not happening and the shortcut keys won't just work. I even tried the command line option to revert back the scale mode and it won't work either. Finally i found the following when all the other options fails:
as @MikeMiller pointed out, To exit scale mode: Right Ctrl (Host Key) + C
but for users who DON'T have a Right Ctrl (Host Key)
(such as MS Surface Pro users: we only have a Left Ctrl key), u need to go into Virtualbox>>File>>Preferences>>Input>>VirtualMachine tab>>change Host key Combination to one that works for ya(I used Ctrl+Shift+Alt which doesn't seem to be in use already)
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A microscope which can disrupt the standard histopathology workflow and provide H&E-like contrast directly within the resection site could radically change the clinical pathology paradigm. However, such a device would need to meet several key requirements: (I) The device must be capable of emulating common existing methods. Pathologists are accustomed to assessing stained tissues and such a device must be capable of producing comparable visualizations of cellular structures with appropriate resolution and chromophore-specific contrast. Such visualizations may also be leveraged by existing AI recognition systems which have been previously trained on conventional histology preparations for use in cancer detection and surgical guidance. (II) The device must be capable of reflection-mode imaging. It is typically challenging for transmission-mode microscopes to visualize morphology on thick specimens such as freshly resected tissue or directly within the resection site. (III) The device must be capable of label-free visualization of intrinsic endogenous contrast. Exogenous dyes can be toxic and may require additional safety measures in clinical or surgical environments. (IV) The microscope must not require contact with the target in order to reduce the risk of infection and permit a rapid disinfection process between cases. (V) The device must be capable of real-time feedback. Real-time imaging would provide immediate feedback during surgeries and confirm suitability of tissue acquired in biopsy procedures. (VI) The device must be capable of 3-dimentional imaging or optical sectioning. Optical sectioning provides a means to visualize multiple layers of diseased tissue without the need for physical sectioning. (VII) Finally, it would be desirable if the microscope were able to image specimens at each intermediate step (as shown in Fig. 1) during the standard histopathological process. This would enable parallel integration into existing workflows at hospitals and encourage adoption. These capabilities, when combined, would result in a microscope that is suitable for intraoperative environments and would facilitate diagnostic quality H&E-like contrasts in fresh tissue specimens or directly within resection sites.
A variety of techniques have been developed to provide an alternative to standard histopathology. These methods have yet to be widely adopted as they do not fully address the requirements described above. Techniques such as fluorescence microscopy5,6,7,8, structured light microscopy9,10, light-sheet microscopy (LSM)11 and microscopy with ultraviolet surface excitation (MUSE)12,13 have demonstrated promising results in providing H&E-like contrast on tissue mounted on microscope slides or freshly excised tissue. However, these methods cannot image unstained tissue and require the application of fluorescence dyes to the sample, adding time, expense, and the potential for occupational exposure to these chemicals. LSM has reported rapid volumetric imaging of unfixed tissue but requires additional processing steps such as optical clearing of the samples in addition to fluorescence dyes11. Optical coherence tomography (OCT) has been used for virtual H&E imaging with the method reporting cellular scale resolutions14,15. However, as OCT uses optical scattering to provide contrast it is not capable of easily differentiating chromophores due to lack of specificity. Since H&E staining is chromophore specific, OCT images do not typically resemble H&E slides requiring pathologists to be retrained to interpret OCT visualizations16,17. Stimulated Raman scattering (SRS) modalities have provided label-free optical imaging18. However, these devices have primarily been shown in a transmission-mode architecture, limiting samples to thin sections. Transmission-mode SRS microscopes have demonstrated H&E-like contrast in thin and unfixed tissue specimens without the use of exogenous dyes19,20. However, thick tissue was imaged by tightly squeezing the sample between coverslips which is unsuitable for imaging large specimens or directly imaging a resection bed21. In addition, the squeezing procedure may place considerable pressure on the sample, potentially damaging cellular morphology, interfering with accurate margin assessment due to distortion, and hindering the analysis of the sample with standard histopathological techniques.
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