6 votes
Accepted

Detect if a network card is a virtual network card (docker/veth/etc) in Linux / bsd

Check the /sys/class/net/<device_name> symlink. If it points into /sys/devices/virtual/, then it is a virtual interface. If it points to a "real" device (e.g. into /sys/devices/pci0000:00/), ...
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  • 6,457
5 votes
Accepted

How to configure routing between Azure virtual networks?

Ok, this can be done, but it's definitely not as easy as it could (and should) be. Basically, the trick is using Azure's "local networks" to configure Azure gateways as we want, even if we can't ...
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  • 68.5k
4 votes

Bridging two (a physical ethernet with a virtual ethernet) different subnets on linux?

You are thinking wrong on several levels. A bridge is a layer 2 device. If you connect two networks by a bridge, you are creating a single layer 2 network comprising both of the connected networks - ...
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3 votes

How to configure routing between Azure virtual networks?

Azure has introduced vNet Peering if you do not want to bother with VPN every time you want to connect 2 networks : https://docs.microsoft.com/en-us/azure/virtual-network/create-peering-different-...
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  • 163
3 votes
Accepted

Configuring Azure Internal Load Balancer

Looking at the documentation for Add-AzureEndpoint I think you are missing the -ProbePath Required if ProbeProtocol is set to "http". Omit otherwise. Specifies the URI whose health will be ...
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2 votes

Virtual network - tracert to local vm results in over 255 hops

Tracing route to vmsp2013.xdomain.local [192.168.1.177] over a maximum of 255 hops: As our good friend Inigo says "I do not think it means what you think it means." That is not saying that it took ...
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  • 108k
2 votes
Accepted

How to join local computer to azure virtual server domain?

Question 1: With S2S VPN the routing should be able to do the job correctly. Make sure the remote computer got the remote DC as the only DNS's server. With P2S VPN you need a client that can ...
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  • 16.2k
2 votes

Output multiple VM's to only 4 IP addresses ESXI

The only way I see this being possible is to have multiple virtual firewalls i.e. Pfsense running in the middle. Each of the four Pfsense firewalls would have one ip from your router on what would ...
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2 votes
Accepted

How to enable reverse DNS for private ips inside an Azure (ARM) virtual network

There's no reverse DNS for internal IPs in Azure. You have to provide name resolution using your own DNS Server. Additionally, "machine1.azelkjzerlqkzjfkljsqfjsf.cloudapp.net" is not an internal FQDN. ...
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  • 3,804
2 votes

How to reliably keep a list of servers in a company network

DNS. Every network should have name services, sometimes bundled or integrated as DNS, DHCP, and IPAM (DDI).
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2 votes

VNET peering with on-premise gateway transit not working properly

It sounds like your onprem Gateway doesn’t have a route to the 10.230.0.0/16 (VN_Other) vía the S2S VPN
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2 votes

NIC teaming on hyper-v host or within each VM?

The discrepancy you're seeing lies only in reported speed of the NIC. Some background first: Windows is lying a bit when it's telling you that the teamed NICs are running at 2Gbps, as that's not ...
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  • 7,001
2 votes
Accepted

How to connect 2 Virtual Network with on-premises without another VPN?

In this case, when you have two VNETs and your VNG (VPN connection) is only in one VNET, you should create the second VNET to use a remote gateway and your current VNET must accepts a transit gateway. ...
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  • 346
2 votes

Does the linux bridge have in-built DHCP and DNS server?

In general the Linux/Unix way is to build tools and solutions that do one thing really well and then use other existing tools and products to provide other complementary/ related functionality. The ...
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  • 5,305
2 votes
Accepted

Expose Container in virtual network to public Azure

In general container groups deployed to a virtual network don't currently support exposing containers directly to the internet with a public IP address or a fully qualified domain name. You would have ...
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2 votes
Accepted

Azure virtual network location tradeoffs

Your vNet has to be in the same region as the resources in it, so it's more likely that the requirement for where you compute needs to sit will drive where your vNet sits. If you peer networks in ...
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  • 38.1k
2 votes
Accepted

Azure: How to add CosmosDb to VNET properly

Cosmos DB is a PaaS service and so doesn't really "join" a vNet, however it has two options to better integrate with vNet traffic: Service Endpoints - this is where you apply a firewall to ...
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  • 38.1k
1 vote

How to route all VM traffic through specific physical interface over a Linux bridge?

You have basically two options: In your current configuration vnet0 and em2 are bridged, so the VM can reach the Netgear device without routing. You just need to assign the VM an address in 192.168.0....
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1 vote

Virtual network between Hyper-V host and guest VM is blocked by firewall because marked as unidentified

Unidentified network means that the adapter is not connected to the internet. Can you make sure that the Virtual Switch Manager is set to External Network and the interface that is selected is ...
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  • 1,175
1 vote

Virtual Networking in KVM breaking internet access

Remove the autostart from the network definition. It is being started by the network manager. The two configurations may be conflicting. virsh may report the interace as inactive even if it is up. ...
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  • 27.3k
1 vote

How to enable reverse DNS for private ips inside an Azure (ARM) virtual network

As @Bruno Faria said that machine1.azelkjzerlqkzjfkljsqfjsf.cloudapp.net is not a internal FQDN, it's a public FQDN. I understand why you want to use this feature , but now we should do something ...
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1 vote
Accepted

Should a private virtual LAN be filtered

is a LAN filtering "needed" to avoid propagation of an intrusion from a VM to another ? Allowing lateral movement is a policy decision that you make. In general, denying any traffic that is not ...
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1 vote
Accepted

GCP: No Network Access on additional virtual network interfaces

The reason this is happening is because you haven't provided the Windows machine with default gateway information. You need to add a default gateway for each new adaptor/interface. So for an example, ...
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  • 917
1 vote

VNET peering with on-premise gateway transit not working properly

Not only do you need a route defined on premises to route thru the tunnel, but your vpn appliance on prem needs to be aware that it should allow traffic from that address space. Once you do that, it ...
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1 vote

Use Azure Public IP With On Prem VM

i want to assign a Azure Public IP to an on prem vm to expose some services. But forward the traffic from the Public IP to the OnPrem VM over the existing site to site connection For now, we can'...
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  • 2,389
1 vote
Accepted

Virtual routers to replace proxy server

Yes, your host needs at least two NICs. You create two virtual networks on the machine, WAN and LAN. You connect one of the NICs to LAN and the other to WAN. Physically connect the WAN port to ...
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  • 3,768
1 vote
Accepted

How can I increase the throughput/bandwith of my virtual network?

You seem to have solved the tool issue, I might add that for maximum performance inside a vSwitch in VMware, make sure that you're running the latest vmtools and VMXNET3 adapters (the legacy e1000 ...
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  • 3,366
1 vote

libvirt TCP tunneled network only works for 2 VMs

After looking into the code of libvirt and qemu I found out that this is intended behaviour (at least by qemu). libvirt passes the TCP tunnel options to the -net switch of qemu. The single-client ...
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1 vote
Accepted

Why doesn't my Web App deployed in an Application Service Environment which is associated with a VNet see my VM?

I'm not able to confirm this right now, but I thought the intent was for ASE to be placed in a separate subnet in the VNET from the VM/Compute resources ... vs co-existing with compute. Have you ...
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  • 394
1 vote

Azure VM and Web App in VNET VPN, changing IP and automatic start of vpn

To access the server using a name instead of IP, you indeed need to use DNS, don't worry though, it's not that hard, here's an exact step-by-step article on how to do it: http://blogs.msdn.com/b/...
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  • 3,829

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