The pipeline I am using is running in organization located in east us 2. I have 2 runs in my pipeline with following agents ips:
01 september, ip: 20.114.117.102
02 september, ip: 20.253.217.28.
And I have 2 files with azure agents ip ranges from https://www.microsoft.com/en-us/download/details.aspx?id=56519:
ServiceTags_Public_20220822.json;
ServiceTags_Public_20220829.json.
Info from: https://learn.microsoft.com/en-us/azure/devops/pipelines/agents/hosted?view=azure-devops&tabs=yaml
The new IP ranges become effective the following week.
Luckily I have both files from 22 and 29 august, unfortunately no one matches my ips assigned to azure hosts. Parsing ServiceTags_Public_20220822 I can see that:
20.114.117.102 matches only southcentralus subnet 20.114.64.0/18;
20.253.217.28 matches only westus subnet 20.253.128.0/17.
Above does not make sense, both addresses should match one of cidr ranges from single region, anyone knows where do I make mistake?
Related
I'm deploying a global networking solution and using Terraform as my IaC solution. I have ExpressRoutes, VPN Gateways, Vnet-to-Vnet connections etc.
I've deployed a VPN Gateway in Azure North Central US and now when I come to deploy and IP address for it I can't. By default I use Zone-Redundant availability zones. Ie. Zone 1, 2 and 3. When I try to deploy an IP using Terraform, I can't use any of the available options - no zone string list, no single zone, not the No-Zone or None parameter. All I get is an error from the MS API saying the available zones for the region are ''. It's literally empty.
If I deploy it manually then get the IP properties of the address it shows the zones as an empty array. Are MS experiencing issues right now? I find it incomprehensible that the North Central US zone which is the regional pair of South Central US (which has 3 availability zones) has...no zones. I'm confused. Could someone share their experiences please, and advise whether this is a temporary issue. I scoured the internet and found nothing. I'm normally working in the European Azure regions so this is the first time I've used this particular one.
Currently, there are no availability zones present for North Central US in Azure but as per the document here, availability zones will be coming soon for North Central US. As of now, these are the Azure Regions with Availability zones.
Just started learning Azure Virtual Network. Following excerpt is about Address Space as defined here: VNet Address Space. Question: When you say a VNet has an address space 10.0.0.0/16, what does it mean? I have read an address space is a range of IP addresses for a Virtual Network and its subnets. What is 16 in 10.0.0.0/16 and when you assign IP address to a resource from this address space what role does 10.0.0.0/16 play? I assume you cannot just pick any four numbers and create an IP address xx.x.x.x (x's are numbers here) for a resource in the VNet with the above address space. I just read some online docs on the subject but, for a newbie in this subject, I found those to be bit overwhelming to understand. Can there be a simple explanation to start with?
Address space: When creating a VNet, you must specify a custom private IP address space using public and private (RFC 1918) addresses. Azure assigns resources in a virtual network a private IP address from the address space that you assign. For example, if you deploy a VM in a VNet with address space, 10.0.0.0/16, the VM will be assigned a private IP like 10.0.0.4.
Think about the internet with 255.255.255.255 addresses.
Now think about your internal/private at home Router/Switch network and how it typically starts with 192.168.0.0.
In organisations you typically assign the private network with 10.0.0.0 addresses. NIC cards in PCs can communicate using the internal network as well as the public internet.
Question: When you say a VNet has an address space 10.0.0.0/16, what does it mean?
In order to define the size of the network (how many IP addresses) we use a CIDR range.
So a Network with 10.0.0.0/28, the calculation is 32 minus the CIDR, eg:
32 - 28 = 4
Then 2 to the power of the result:
2^4 = 2 * 2 * 2 * 2
16 addresses!
In real life you'd create VNet with more than 16 addresses. Because inside VNets you define Subnets which are smaller address ranges that fit inside the VNets address range.
Your example of 10.0.0.0/16 is more realistic VNet size for an organisation and equals 65536 addresses.
Ref: https://devblogs.microsoft.com/premier-developer/understanding-cidr-notation-when-designing-azure-virtual-networks-and-subnets/#:~:text=The%20second%2C%20and%20most%20important,which%20provides%20eight%20IP%20addresses.
Best to learn this particular topic VNets & Subnets with CIDR from online video's because it involves electronics with masking and binary it can confuse people when they look deeper beyond what I've just explained.
I have
30 service fabric clusters in different vnets.
Each of them has it own public load balancer and appliction gateway.
On each cluster there are 2 applications. app 1 which should be accessible from internet and app2 which should be only accessible to app 1
Unfortunatelly all vnets have the same ip address range.
1 vnet 'TestVnet' with couple of VMs which are created for testing purpose. Those are used to check all applications on each clusters.
Let assume that app2 accepts rest request on port 2000 (for every instanse of app2).
So what I want to achieve is to cut port 2000 on public LB, create internal LB on which port 2000 will be open to app1.
The problem is how to make port 2000 open for TestVnet ?
I thouhgt about using peering/vpn but it require that ip address ranges do not overlap
Changing Ip address range of vmss failed and cluster did not 'recover' after changes.
Using Network security group also failed. For security reason 'TestVnet' does not have public Ip address.
Question is it all possible to make all those service fabric cluster vnets available to TestVnet ?
No, there is no way Azure can solve this (in the present moment). to route traffic between vnets ranges need to not overlap. this includes user defined routes and network appliances.
You need to change your networking setup.
I have a url as below from Azure Portal
https://qwergeneralstorage.blob.core.windows.net/sqldb/DBNAME-Test.bacpac?sp=r&st=2018-07-11T02:12:52Z&se=2018-07-13T08:12:52Z&spr=https&sv=2017-11-09&sig=%2FYrtyuZtl5eJdfj07mTtKjbol8J9d1%2thyuJ%klemhg%3D&sr=b
How can I determine the IP address from this?
If you want to get the IP Address, you could use cmd to ping the url host name.
But you need to note that the IP Address changes every week. You could download the xml file in this link, then check the IP Address range of different regions in the file.
Details
This file contains the IP address ranges (including Compute, SQL and Storage ranges) used in the Microsoft Azure Datacenters. An updated file is posted weekly which reflects the currently deployed ranges and any upcoming changes to the IP ranges. New ranges appearing in the file will not be used in the datacenters for at least one week. Please download the new xml file every week and perform the necessary changes on your site to correctly identify services running in Azure.
I have created 2 virtual machines and configured high availability of databases (using SQL Server alwaysOn)
Now i want external application to make use of these databases, from the below link it says that I need to create internal listener.
https://azure.microsoft.com/en-gb/documentation/articles/virtual-machines-windows-classic-ps-sql-int-listener/
Found one more article, but it's not clear which IP I needs to send
http://www.cloudcomputingadmin.com/articles-tutorials/windows-azure/configuring-internal-load-balancing-microsoft-azure.html
Example:
Node 1 IP: 11.240.164.1
Node 2 IP: 11.240.164.2
Cluster IP: 11.240.164.3
Listener IP: 11.240.164.4 (mapped during creating the availability group)
Now, when I create internel load balancer, which IP I need to pass in below script for StaticVNetIPAddress ?
Add-AzureInternalLoadBalancer
-ServiceName <service_name>
-InternalLoadBalancerName <name>
-SubnetName <subnet_name>
-StaticVNetIPAddress <ip_address>
Update
I have used below script to find un-used IP and assigned it
Test-AzureStaticVNetIP -VNetName “SubNetName”-IPAddress 10.249.xxx.xxx).AvailableAddresses
Note: The listener IP which you have created during availability group creation will be over written by ILB.
Looking at what you have provided here assuming that 11.240.164.3 is the SQL AlwaysOn listener then you would be looking to pass 11.240.164.4 as the StaticVNetIPAddress parameter.
Just to add to that, you may know this already but the IP address you define has to be within the subnet you define in SubnetName.