IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.

learn more… | top users | synonyms

-3
votes
1answer
27 views

When do Ethernet broadcast (ff:ff:…) and IP network broadcast (e.g. …255) scopes differ? [on hold]

Is there any option that a ethernet broadcast does not reach the same hosts as a IP network broadcast, vice versa ?
0
votes
1answer
39 views

Is there anyway to do ssh on a VM with a local IP address?

Scenario :I am using KVM as a hypervisor and Ubuntu as guest and host OS. There are many VMs on a PM and I am assigning IP addresses to those VMs using NAT. To create VMs I am using a baseimage. So ...
-4
votes
1answer
33 views

Ok, I checked “What Is My IP” of my personal PC, but why when typing my public IP on browser it said “This webpage is not available”? [on hold]

Ok, I got a personal PC and I used Internet service from o local Internet provider. I checked "What Is My IP" of my personal PC and it poped up a number, so that means my personal PC has a public IP ...
-3
votes
1answer
20 views

CDN - find the source IP [closed]

I want to communicate directly with website using CDN (Akamai, CloudFlare, etc.) Anyone knows if is it possible to find the IP address of websites using Akamai? or CloudFlare? I have tried to ping ...
-3
votes
0answers
15 views

Real visitor IP on XAMPP by CloudFlare [closed]

How to get real visitor IP on XAMPP sent by CloudFlare on CentOS? https://www.cloudflare.com/resources-downloads#mod_cloudflare # yum install libtool httpd-devel # wget ...
-4
votes
1answer
22 views

External IP shows me ESXi web client [closed]

Recently i installed Vmware ESXi on my proliant server and created some VM there , opened ports on mikrotik router and installed nginx web server and when i tried to reach it via external ip it gets ...
0
votes
1answer
44 views

Server network setup with 2 NICs

We have a debian server server with 2 NICs. The Server should be configured with 2 IP addresses, one internal address for the communication in our LAN, and one public IP accessible from the internet. ...
0
votes
0answers
26 views

IP address redirecting to datacentre IP [closed]

We've recently moved our hosting infrastructure to a new datacentre where they do not offer managed support. We're experiencing a couple of teething problems and one specific which is kind of a show ...
2
votes
2answers
54 views

Adding a virtual NIC to a 2008R2 server makes internet unreachable, why?

I currently have a Windows Server 2008R2 box with a single physical NIC. For what I want to do I need two network adaptors in the box. To accomplish this, I added a legacy hardware device "Network ...
0
votes
1answer
27 views

Utilizing A Secondary IP On A NIC In A Windows Cluster

RELEVANT INFORMATION I have a windows cluster with 3 nodes in it... Node1 Node2 Node3 I have 4 NICs on each node... NIC1_Host NIC2_Virtuals NIC3_Cluster_HB NIC4_Live_Migration This is the ...
1
vote
1answer
34 views

Select source IP on windows server 2012 with multiple IPs on 1 NIC

I have searched a lot for a solution to this case but I couldn't find any. So, any help would be appreciated. I have a windows server 2012 with 1 NIC having 2 IPs bound to it 37.188.120.8 and ...
-1
votes
1answer
34 views

setup domain with random ip addresses [closed]

i set up nameservers as follows ns1.domain.com ip1 ns2.domain.com ip1 ns3.domain.com ip2 ns4.domain.com ip2 ns5.domain.com ip3 ns6.domain.com ip3 all dns records and PTR records correctly has been ...
-1
votes
1answer
28 views

Why must the IP be configured on the bridge device? [closed]

My understanding of a network bridge is having a kind of "virtual switch" which virtually connects the network devices (that were added to the bridge) as if I would connect them to a real switch with ...
2
votes
1answer
63 views

A local IP address (RFC 1918) on my network that is not … local

I've noticed an IP address today on my network (192.168.15.1) which when visited actually goes to a page that has a router webconfig page (Not my router) The puzzling thing is that i tried traceroute ...
1
vote
0answers
15 views

A local IP address (RFC 1918) on my network that is not … local .. [duplicate]

I've noticed an IP address today on my network (192.168.15.1) which when visited actually goes to a page that has a router webconfig page (Not my router) The puzzling thing is that i tried traceroute ...
-1
votes
1answer
11 views

Addresses overlapping

I was putting somes static addresses to my interfaces then it shows me this: 172.16.1.0 overlaps with FastEthernet 0/0 What does it mean when two addresses overlaps and how can we avoid it? EDIT: ...
-1
votes
0answers
16 views

How to force users binding to specific IP, using IPtables?

I want to give some web users the possibility to have a dedicated IP, both for receiving and for sending. So it means a web script for WEB user XX, received by Apache on IP x.x.x.x, when opening ...
2
votes
1answer
41 views

Prosody, how to get the IP address of connected clients?

I'm running Prosody server on ubuntu. I was wondering if there's a possible way to get the IP address of each client who connects to my server, basically, I want 2 things: 1) I want to get the IP ...
0
votes
0answers
22 views

CentOS wrong outgoing IP address on forward

I have a rather strange behaviour for me in here. I am trying to forward traffic between two interfaces (one being a bridge) but will not work as intended. Here is the setup: Kvm host has br0 ...
0
votes
1answer
31 views

Change source IP for specific target host

This is a follow up to this question of me. (Still on Debian 7.8) The problem isn't really IPSec related or anything, because I can't even ping the remote host with the "correct" source IP (through ...
0
votes
1answer
39 views

multiple ips on same server

We have a server (a router) with 5 IP addresses (we are hosting different Websites). I'm wondering why the server was setup like that: -> eth1 is connected to the modem -> when the connection is ...
1
vote
1answer
89 views

DNS errors after changing nameservers for Cloudflare

I don't know if this is the right place for my question, but I have a problem with my DNS/nameservers after changing the nameservers. I'm not sure if it is a problem at my side or at my webhost. I ...
0
votes
0answers
4 views

Keeping en0 down while I change IP address mac [migrated]

I have a DHCP server which assigns myself a new IP address. What I'm wanting to do is power down the wireless adaptor, then change the ip address manually. What's happening is as soon as I set the new ...
-1
votes
2answers
49 views

How to configure network interfaces for three NIC cards all on three different subnets

I am setting up a cloud environment on Ubuntu and I am running into an interesting problem. Out of the box Ubuntu (all linux really) doesn't allow you to specify more than one gateway in ...
0
votes
0answers
27 views

ARP/ICMP in a network environment with overlapping IP address

Currently I have lab network setup to mimic customer's network deployment. (According to the customer, they are using VRF over VLAN so that their customer can have overlapping network connecting to ...
0
votes
0answers
46 views

Connect to a Server from my AWS EC2 instance

I have a app running on AWS EC2 which connects to a database in another server. The database connection Uri is as following, jdbc:XXX:172.18.2.107:3306/database This is what I got form my ...
-1
votes
0answers
12 views

Limiting authenticated users to 1 IP (dynamically) but unlimited connections in Apache2

I looking for a method to allow an authenticated user access from only 1 IP but unlimited connections. Imagine this scenario; Bob logs in from 192.168.1.1 to the web server using basic auth. I ...
0
votes
1answer
46 views

redirect traffic from 127.0.0.1:5003 to external interface

I have an application that exposes Web Services on the loopback address 127.0.0.1:5003 so they are only available to the localhost. Is it possible to redirect traffic from there to the external ...
-1
votes
1answer
62 views

Cannot connect to the Internet, Limited Access(Ethernet), Windows Server 2012

I am using a Windows Server 2012 for my institute, due to connectivity issues I uninstalled the services AD DS, DHCP, DNS. But after the uninstall the server is unable to connect to the Internet, ...
0
votes
1answer
49 views

Can't reach static IP address from outside the network

I've got a server with two network cards. The first one is configured with an internal IP and everything works just fine. The second one is configured with an external IP and is causing me some ...
0
votes
1answer
43 views

access server with ip address and not server name

I am trying to access my server to the following address: https://www.media-rewards.com/ But it doesn't work :(. However, if I use its ip address, it works: https://52.0.245.209/ I don't know ...
-2
votes
2answers
47 views

how to change the special port output source address?

I want to change the my datapackage from port 25 to another internal address(192.168.2.253). iptables -A OUTPUT -o em1 -p tcp --dport 25 -j SNAT --to 192.168.2.253 But I get the output is: ...
1
vote
3answers
220 views

How can one redirect to a new host all traffic destined for an old host?

We're moving a bunch of services, say from 1.2.3.4 to 5.6.7.8. In order to test that the new services are correctly configured, we'd like to redirect (to the new host) all traffic destined for the ...
0
votes
1answer
27 views

OpenVPN not giving the right ip-address

I have this Openvpn-configuration file generated for my windows 7 pc, when i connect to the openvpn it gives me the message that i'm connected with the vpn, but when i check i still get my old ...
0
votes
1answer
27 views

Will Apache2 performance be reduced by huge IP blocklist

My web application is getting more and more hits from unknown sources trying to access secure pages, such as admin panel, etc. So, I want to block IP address from certain countries using this source. ...
1
vote
1answer
56 views

iptables forward ip to another ip

I've configured multiple IP Addresses on my Ubuntu ssh server. Now the server can be accessed by using any IP Address, from 192.168.0.51 to 192.168.0.99. Depending on which IP Address someone uses to ...
0
votes
1answer
41 views

Traffic shaping for upload/download speed simulation [duplicate]

I'm building a network emulator to help realize different speeds. Basically, this system would shape a given user's network metrics (such as upload speed/download speeds/packet loss/jitter etc) based ...
0
votes
0answers
11 views

How can I assign an IP by UID in DHCPd

Here was answered how to assign an IP by MAC address. I want DHCPd server to assign IP by UID. Can i just add record to dhcpd.conf in the same manner? For example: host example { uid ...
-1
votes
1answer
54 views

How many static IP's do I need for VPN? [closed]

I am setting up a VPN system for my office. Is it correct that if I don't have a dedicated VPN server, I will need to purchase one static IP per computer I wish to connect to? Or can I just give the ...
0
votes
1answer
22 views

CentOS as a router — Can't get static IP adress for Internal Zone

I'm trying to make a router with a CentOS 7 box. enp2s2f0 ---> External Zone ---> directly connected to the internet. enp2s2f1 ---> Internal Zone ---> Connected to a PC (will be connected to a switch ...
1
vote
2answers
394 views

Nginx Make website inaccessible via IP

I've got my website set up to be accessible via example.com. If possible I want to prevent it from being accessed via its IP altogether or at least 301 redirect it to website. Is the former possible ...
0
votes
0answers
48 views

Windows Server 2012R2 Hyper-V Additional Public IP Subnet

I am using Ubiquti Hosting for a bare metal server. The server has a base IP address space of: Main IP: 24.79.37.82 Default Gateway: 24.79.37.81 Subnet Mask: 255.255.255.248 Usable Range: ...
-7
votes
2answers
97 views

Setting up multiple sites on one IP address [closed]

I am working for a client that has a CentOS 7 server running Apache 2.4.6. I have a Zend Framework/PHP based website running on the server. It only has an IP address. No domain name is pointed to it. ...
-1
votes
1answer
52 views

Subdomain with different ip on same server [closed]

I am creating a subdomain with a different account (same name-servers) But I am wondering if there are any advantages to giving the subdomain a dedicated ip (same server hosting)
-1
votes
2answers
24 views

Querying a webserver as if request came from a certain remote IP?

I am having trouble with my Apache web server configuration since a number of remote clients receive 404s, while the majority of clients (me, locally, included) do not have any trouble (status 200). ...
0
votes
1answer
67 views

Correct way to setup VPN/VLAN for small business NETGEAR FVS336G

My current employer has a horrendous setup for his internet, 2 Virgin Media cabled lines with routers that you'd use at home. So we've had Fibre Optic installed and a Pool of 5 Public IP Addresses. ...
-6
votes
1answer
29 views

What if you set your static IP to that of Google? [closed]

What prevents someone from setting their static IP to that of another server such as Google's servers? How is that prevented?
5
votes
5answers
2k views

How does a router get its IP address assigned?

I understand how a device connecting to a router (e.g. 72.73.74.75) gets assigned a local IP address (e.g. 192.168.1.5) using DHCP. BUT, how does the router itself get the IP address assigned from ...
1
vote
1answer
111 views

Setup public IP address on LXC container

Can anyone tell me how to setup a network interface for each LXC container so that each container can have its own dedicated IP address? Here's what the /etc/network/interfaces file on my host node ...
1
vote
1answer
34 views

verisign error -> Query to DNSKEY timed out or failed

I am trying to find the origin of an error I cannot get rid of on the verisign dnssec debugger Verisign debugger Dig queries the server just fine dig ex-mailer.com ANY @108.61.190.64 All of my ...