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Questions tagged [private-ip]

59 questions
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votes
4 answers

Public Servers NATing?

My question in short: "Which is better? To assign private IP addresses to public servers and do NATing, or to assign public IP addresses to them without the need for NATing"? The NATing can be useful for users to allow many users to access the…
Khaled
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1 answer

Linode Private IPs

I'm trying to get private IPs set up with my Linodes. I'm running Debian. Here's my Linode's Network tab: eth0: 69.164.214.146 ( li129-146.members.linode.com ) Gateways: 69.164.214.1 Netmask: …
mattbasta
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How to make Unbound block private IPs in resolved domains (DNS rebinding)

I set up Unbound in my local network as a local DNS resolver. I noticed that it will not filter any private IP addresses in the resolved domains and forward any IP address that a domain resolves to. In order to protect against DNS rebinding, I would…
comfreak
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2 answers

IPv6 configuration for my private network when prefix delegation is not supported by the provider?

I have a typical router with IPv4 and NAT setup. My provider sends an IPv6 address to the router, but it does not support the IPv6 prefix delegation. How can I get IPv6 addresses for my private network without relying to my provider that much? With…
Vangelis Tasoulas
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2 answers

Connecting to a remote mysql database using its private IP Address

My database server has only a private IP address. I am able to ssh into the database server from my application server. I have created an user with the app server's IP address. Can anyone tell me how to access mysql databases from the app server…
TrickyExplorer
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2
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1 answer

Multiple IP's bind to same interface in hyper-V does not respond to telnet or ping

I have configured CentOS-6.0 VM in hyper-V. Configured multiple IP and bind to same Network adapter. Below are interfaces created. ifcfg-eth0 - 10.225.180.96 ifcfg-eth0:1 - 10.225.180.97 ifcfg-eth0:2 ... ... ifcfg-eth0:9 Now, I cannot ping or telnet…
Paul Jany Godwin
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2 answers

Vagrant private IP not found after network change

I've got a simple Vagrant Ubuntu virtual machine setup using Virtual Box, running on a Mac. I'm using private networking, configured with a static private IP like so: Vagrant.configure("2") do |config| config.vm.network :private_network, ip:…
Brad Parks
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2 answers

IPv4 private address assignment

I'm working on a private network which uses static IPv4 addresses as well as DHCP addressing for the physical LAN network. At a previous company I worked at they would assign static addresses in the 10.*.*.* space and all DHCP/LAN addresses were…
helloworld922
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3 answers

Is 172.253.16.0/24 a valid private subnet?

I've been administrating an office network that was set up by someone else and I always found this weird about it: Their internal subnet is in this range: 172.253.16.0/24. It's been working fine, but it does not conform with RFC 1918. I've been…
Pablo M
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How so I SSH to two different machines with the same IP?

I have two similar deployments of a web app, each on separate virtual network with private IP addresses. Both have a VM at 10.0.4.4. I can VPN from my development machine into either network and SSH onto the VMs however when I switch networks SSH…
Brendan
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2 answers

Accessing servers with public IP from private networks without NAT

Is it possible, from a private network, to access to a public server (i.e., a server with a public IP address) without a NAT? In other word, can an Intranet provide public services, if I give public addresses to server and private addresses to hosts…
mgiordi
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1 answer

Reverse proxy forward request via private IP?

I have two EC2 instances, says EC2-a and EC2-b. EC2-a installed NGINX and served as reverse proxy, while EC2-b installed Weblogic which serve up my websites. Since public-IP are not static, I'm wondering if EC2-a can forward requests to EC2-b via…
Isaac
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4 answers

Public IP or Private IP for the DMZ area

Lets say I have three networks in my topology : Internal network, DMZ, Internet. And my DMZ Area contains a lot of servers, but lets say in this example that it contains only a DNS Server and a Web Server. So, should I use public IP addresses or…
Sidahmed
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How to make docker only use a private network to communicate with other hosts?

Digital Ocean provides internal IPs that are not traffic-metered. How can I configure Docker to exclusively use this private network? How to make the network interface that the docker creates docker0 only use the private network?
Cláudio Júlio
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2 answers

ftp server in passive mode at private subnetwork

I have following configuration: FTP client (public_IP1) => internet => Firewall(Public_IP2) => FTP server (10.10.12.171) I have following iptables rules at Firewall: DNAT tcp -- 0.0.0.0/0 Public_IP2 tcp dpt:21…
kakabomba
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