I have a YAM file which deploy a container into a subnet.
The idea to to be able to define a fix IP address for my containers when it start
For that I have define the IP entry as seen in following screen shot :
https://o365itecor-my.sharepoint.com/:i:/g/personal/s_calderara_itecor_com/EfZyTI06hk9Kg1NnjEbARq0BDyv01xBo_R0ryLmxY-xgmA?e=zuPr8C
Normally, the IP should be set to 10.0.0.5 but Azure assign it all time to 10.0.0.4
Any idea why I cannot set fixed IP address ?
Regards
As of now, assigning a fixed private IP address to container instance is not supported.
Whenever we create a container instance with a virtual network, the first private IP address available in the subnet will be assigned to the container instance.
In your case, as the first available private IP address available in the subnet is 10.0.0.4, the container is created with this IP address.
Related
How can we get static IPs for a OCI VM instance? Also, how can I configure reverse DNS for this Oracle-owned IP address?
I have visited https://docs.cloud.oracle.com/en-us/iaas/Content/DNS/Tasks/reversedns.htm but this seems to create a DNS zone and record for normal forward zones. How will Oracle update the reverse DNS zones in their zone files?
The Public IP address assigned to the VM stays with it all through the life-cycle of the Instance until it is terminated. So one way, it is already static/permanent. The other option is to use Reserved IP addresses.
Could you check this link for rDNS question? Looks like it is very similar if not same.
https://cloudcustomerconnect.oracle.com/posts/21ce8bcdef
I accidentally enabled firewall in my Ec2 instance which blocked me from SSHing --> Then, I used this answer to https://stackoverflow.com/a/50999373/3705478 gain access to my Ec2 instance, but my public Ip address changed. --> This caused me to update my Ip address with Domain registrar as it is a web server facing public. Also I have to change the ip address of the DB running Ec2 instances.
How can I prevent my public Ip address changing under such situations in Amazon EC2?
See the aws documentation for allocating a static ip here https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html#using-instance-addressing-eips-allocating
Any idea how do i reassign IP address to a EC2 instance in aws?
I tried with the following.
Assign a unallocated IP during the creation of EC2. It worked but i want a way where i can reassign the IP even after the EC2 is assigned with a IP.
The "manage IP Address" option doesn't give the rewrite the existing IP address!! Any idea guys!!
If you start the instance using auto-assign IP address option , AWS will randomly assign an IP for you, that you have no control.
You CANNOT overwrite the existing auto-assigned IP with any other IP when the instance is still running. You must shutdown the instance, allocate and an Elastic IP and attach to the instance primary network device.
However, if you start the instance with EIP(s), then you can allocate and de-allocate it(them) on the fly.
Another ways is having an extra network device assign to the instance, then you can allocate IP to the second network device.
Private IP cannot be reassigned/released. Private IP of an instance remains associated with the instance for the life of the instance even if the instance is stopped. Only when an instance is terminated, its private IP is released.
Is it possible to assign Elastic IP Address to my instance without changing the public IP address?, i need to Transforms my public IP address to be Elastic IP Address
Yes. It is possible. You can access your instance with Both Elastic IP as well as Public IP Address. But remember when your EC2 instance restart at that time its public IP may get change so people preferring to use Elastic IP Address.
Hope this Helps !
Using Elastic Network Interfaces it is possible if you started the instance in a VPC. You can assign the Elastic IP to an Elastic Network Interface which you can then attach to the EC2 instance. EC2 instances in VPC can have multiple ENI. If you assign an EIP directly to the EC2 instance (classic or VPC) then the public IP changes to the EIP.
When you associate an EIP with an instance, the instance's current
public IP address is released to the EC2-Classic public IP address
pool. If you disassociate an EIP from the instance, the instance is
automatically assigned a new public IP address within a few minutes.
In addition, stopping the instance also disassociates the EIP from it.
from: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html
We have created a new EC2 VPC instance on Amazon.
When we created instance at Amazon, it was created with IP address generally know as a Public IP.
For ex: Public IP: xx.xxx.xxx.xx
And we can access our site using above public IP Address (xx.xxx.xxx.xx).
Now we need to create one another public IP address for our site.
For ex: Public IP: yy.yyy.yyy.yy
Is it possible to create multiple IP addresses? If yes, then how to do that? Let us inform with an appropriate answer.
Note that after assigning multiple addresses, our site should be accessed on any of the IP addresses assigned.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/elastic-ip-addresses-eip.html
Multiple IP
EC2-Classic:
Instances support only a single private IP address and a corresponding EIP.
EC2-VPC:
Instances support multiple IP addresses, and each one can have a corresponding EIP. For more information, see Multiple Private IP Addresses http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/MultipleIP.html
You can not assign multiple (free of charge) public IP addresses to a single instance.
But you could assign an additional network interface at your instance and configure your system to work with two interfaces. After that you can assign an Elastic IP to your new interface (extra costs).