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Questions tagged [private-subnet]

Use this tag for questions related to private subnets, i.e. subnets of a private network. A subnet is a part of a greater network/net.

This tag is used for questions related to the subnets of a (virtual) private network.

For example, one could use this tag when posting a question related to how his subnet can have Internet access.

129 questions
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Multiple Interfaces but only one (eth0) works

I have three interfaces ( 2 ethernet and 1 Wifi), as shown in below table. eth0 (192.168.1.62) is connected to WLAN router (192.168.1.1) and wl1 (192.168.1.114) is also connected to same router via wifi dongle. But I cannot ping or access…
Sarmad
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Attaching ELB to ASG in Private Subnet

Thanks for your time in advance. I am pretty new to AWS and trying to setup a cloud facing application processing HTTP / HTTPS requests. I have a domain-name (example.com) attached to the Elastic Load Balancer (ELB) and my requirement is just to…
Sujith
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RDS instance in private subnet

Given a VPC, can I not explicitly mention which subnets the RDS instance should exist? I have created a VPC 10.0.0.0/24 with three subnets as shown below: REST servers - 10.0.0.0/25 RDS - AZ1 - 10.0.0.128/26 RDS - AZ2 - 10.0.0.192/26 When…
cogitoergosum
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Subnetwork and Subnet Mask

Block - 130.0.0.0/25 . Want to create 8 subnet. Binary Form of Block will be 1000 0010.0000 0000.0000 0000.0000 0000/25 Subnet mask would be 1111 1111.1111 1111.1111 1111.1000 0000 How will I make 8 subnetwork out of this?
user8478648
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CloudFormation + Adding Subnet into existing VPC

After review of many stack's, Im still stumped. Trying to create a cloudformation script that will reference an existing VPC ID and add a new subnet and keep getting syntax error. Any thoughts? { "AWSTemplateFormatVersion" :…
funn7J0k3r
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Access an RDS DB on a private subnet from an ec2 on a public subnet via SSL

I have an instance of AWS RDS running in a private subnet of a VPC. I would like my EC2 machine, which is running on a public subnet to have access to it via SSL (and not SSH like I saw people suggest. I want to access it directly from the code via…
Theodore
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AWS setting CIRD

I know this topic has a lot information all over but I can't find an answer to a simple question. I am willing to have a subnet for each availability zone in my region (3 zones). My VPC CIDR is 10.0.0.0/19 and I want each subnet to have same amount…
guystart
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Router doesn't assign PC's to the same subnet

I am trying to remote control my other PC in a private network. The problem is: my router doesn't assign my PC's to the same subnet. I am trying to learn subnetting through YouTube tutorials but I can't exactly find a tutorial that suits my…
Marius Prakash
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2 answers

AWS VPC IP Range?

I'm trying to set up the AWS cloud for some VMs as an alternative for existing setups in Azure. AWS however has some limitations on the subnet that Azure does not have. With Azure I have it set up using the following IPs in the picture below, but…
shcui
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How to connect private instance under public instance via LAN in AWS?

i'm create two instance public & private. And create two network interface for public instance. network interface one attach with internet gateway & second network interface is connected to private EC2 instance WAN. Also tried to attach private EC2…
yuvaraj moorthi
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2 answers

SMTP on AWS private subnet EC2, Network unreachable [errorno 101]

Trying to send emails using SMTPlib in python script on private subnet EC2 machine using following code. EC2 machine has communication with internal SMTP server through PORT 25 , verified using telnet command. This code works fine from public subnet…
Kunal Rathod
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route *local traffic* destined for 192.168.1.2 to 192.168.2.2

I have a nonstandard network of VMs that are causing routing headaches. Each VM is homed on on three different subnets (192.168.1.0/24 through 192.168.3.0/24), and each VM can connect to every other VM --- but only over a single subnet. For…
Mae Milano
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Error with Subnet ID while creating EC2 instaces with module

I am trying to create 3 ec2 instances in private subnet. Using ec2-module.tf from below git repo https://github.com/quickbooks2018/Terraform-Classic-Modules Below is the line I enabled in tf file ec2-subnets-ids =…
murali
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Trying to create 2 ASGs in one terraform file

I'm trying to create an launch configuration, ELB and 2 ASG. I guess one ELB is fine to create 2 ASG (im not sure). So I have a launch configuration and asg code in one file calling the as module. My question is, can I create 2 ASG using a single…
user11411591
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Unable to access another instance in different VPC

So I have 2 different VPCs in the same account. In the first VPC (A), I have an instance which is a part of a private subnet, and all the data is routed to a NAT gateway (Working on previous configurations). Currently I am trying to access an…
user10137101
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