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Questions tagged [private-ip]

62 questions
16
votes
4 answers

DNS A record pointing to private IP address

I own a domain. I will call it example.com. I want to set up a local BIND server on my private network. I have a box with the private IP address of 192.168.2.13 I would like to have this box named development.example.com, Is it considered normal…
Ryan
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9
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2 answers

Is it reasonable to use Nagios to check that a service is NOT available?

Suppose I have a server with a private interface and a public interface. Public might have things like HTTP(S) servers, private might have MySQL and SSH. Obviously Nagios is useful to check that the services are running on their respective…
smitelli
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7
votes
5 answers

Private IP getting routed over Internet

We are setting up an internal program, on an internal server that uses the private 172.30.x.x subnet... when we ping the address 172.30.138.2, it routes across the internet: C:\>tracert 172.30.138.2 Tracing route to 172.30.138.2 over a maximum of…
WernerCD
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7
votes
4 answers

Reaching a Linux server with a private IP without VPN

I'm working on a network where I can't obtain a public IP address or set up VPN access. Is there a way that I can communicate with a local server remotely by using an intermediary in the cloud that both local server and remote client make an…
Jonathan
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6
votes
2 answers

Ec2 instance static private ip address

I am using an on-demand instance for testing some services in my spare time. So, I start and stop that instance very frequently, and I see its public and private IPs changing each time. This is annoying, because I always need to change hostname in…
Fabio B.
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5
votes
2 answers

Private address space IP found in X-Forwarded-For

I'm reverse proxying with nginx behind Google Cloud (HTTPS) Load Balancer, so I add the X-Forwarded-For header so that the backend can extract the client (browser) IP. This morning I noticed a 10.x.x.x IP in the logs, how is this possible?
Rhangaun
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5
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1 answer

How can the route between two private IPs go via public IPs?

I'm trying to understand what this output from traceroute means. I changed the IP addresses for privacy but retained the public/private IP range distinction. traceroute.db -e -n 10.1.1.9 traceroute to (10.1.1.9), 30 hops max, 60 byte packets 1 …
Gilles 'SO- stop being evil'
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5
votes
1 answer

Two ESXi host servers connected to eachother's second NIC

Essentially I have two physical servers (Both identical, both ESXi hosts, each with 2xdual gbit nics) in a private rack in a data center. They will both be running a variety of db/web/storage server guests and each has a large redundant storage…
tg2
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5
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2 answers

How do I setup virtual networking Xenserver?

I'd have a network like this currently. Basically, It's two Xenservers connected to our colocation provider's switch via one ethernet cable per server. Each server currently has a second ethernet card which storage is attached to (iSCSI). Each of…
edude05
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4
votes
1 answer

Valid SSL certificate for domain/subdomain pointed at a private IP address

This is related to a question I saw here where the OP asks whether you can point an A record to a private IP address. So it seems like you can but I have a further question... If I create the subdomain private on mydomain.com and point this to the…
wingyip
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4
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1 answer

Allow internet access for ec2 instances with private IP addresses inside a public subnet?

I have a public subnet(S1) with a route pointing to the internet gateway in its route table. Launched an ec2 instance(I1) inside S1 but did not allocate a public IP to it, thereby the instance only has a private IP address and cannot be reached…
Yasasvee
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4
votes
3 answers

Can only some machines on a network have a public IP addresses?

Is it possible for some computers on a network to have their own public IP addresses and serve content over the internet while other computers on the same network only have private IP addresses but still have the ability to make requests over the…
Chris Dutrow
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4
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1 answer

Why is my AWS instance's private IP outside of the subnet's range?

I'm trying to launch an instance with the private IP address 172.31.32.101 using Terraform in my default VPC (CIDR 172.31.0.0/16), in the eu-west-1a subnet that has the CIDR 172.31.32.0/20. I can usually do this with no problem, but more and more I…
scrossan
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4
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1 answer

Using Public IP addresses for Private Network

I have a network that uses the 192.192.192.x network address for their private network. It looks like publicly those are IP addresses that are assigned in Taiwan. I don't think they do too much business there, so it shouldn't "impact" their work. My…
Nixphoe
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4
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2 answers

why do Vagrant docs suggest using public IP address 33.33.33.10 for local VMs?

I'm following a tutorial to set up vagrant (a tool to build and configure portable virtual machine images), and it seems that vagrant documentation suggests using IPv4 address 33.33.33.10 to configure a new box. That is a publicly routed IP adress,…
Gert
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