IP address is a numerical label assigned to each device participating in a computer network that uses IP for communication.

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6 views

Can RDS IP Virtualization work with a single nic that already has multiple static IPs?

According to the MS TechNet article Configure Remote Desktop IP Virtualization, if there are multiple NICs in the server only per-program mode is supported. However if there is only one NIC but it ...
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0answers
54 views

IP Address Basics [duplicate]

I am struggling with identifying the Network/Prefix, IP Address Range, Broadcast Address, and Network Mask. I have an example calculated out for the most part, just need to identify each piece. If I ...
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0answers
24 views

given the network address must be subnetted needs to be provide addresses for 3 lans [duplicate]

the network is 172.16.0.0/16 must be subnetted to provide addrsses for the 3 lans. HQ lan requires 500addresses, Branch 1 200 addresses, Branch 2 100 addresses
16
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2answers
758 views

Why is ARIN (etc.) allocating such large blocks of IPv6 addresses?

The whole issue of IPv4 depletion and waste seems to be final getting behind us with the (somewhat) increased deployment of IPv6. The sole purpose of IPv6 was to solve the issue of IPv4 address space ...
-3
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0answers
25 views

Subnet masks / IP addresses [duplicate]

If I have the following IP address; 192.168.88.0 And the following subnet mask; 255.255.255.192 How can I; A) Identify the set of available subnets? B) The range of usable host IP addresses in ...
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0answers
30 views

How often does the geolocation associated to an ordinary IP address usually change?

Can anyone tell me how often should i expect a routable IP address (either v4 or v6) to have its associated geolocation (country + city level) changed, in average? I'm asking this because i'm ...
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0answers
39 views

VPN connection to win2012, server gets 2nd (wrong?) IP

I have a number of windows 2012 servers in our office network. The servers and their local IPs: S01 - 192.168.16.2 M01 - 192.168.16.3 S02 - 192.168.16.4 S03 - 192.168.16.5 DB01 - 192.168.16.6 WEB01 ...
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2answers
109 views

Exercise regarding public IP address and its “class C” [closed]

An exercise I am doing asks the following:- Identify what your public IP address is. Using public information sources, see what you can learn about your IP. If you don'ʹt find anything on your ...
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1answer
48 views

XenServer - VMs to access Internet, but should not be visible from the Internet

I have installed XenServer on my server at the Hetzner datacenter. I have bought an additional /29 subnet containing 6 usable IP addresses from them. I want to install more than 10 VMs on this ...
1
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1answer
73 views

Swapping IP addresses between two domain controllers

On our VMWare ESXi environment is a single domain controller (Windows Server 2008R2) installed. Now I have to upgrade it to a new server (Windows Server 2012R2) which should has the same IP. Many ...
-2
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1answer
25 views

Can I conclusively determine that a remote web server is denying access by blocking my IP address? [closed]

Let's say a web server administrator has configured his web server to deny traffic from my IP address or address range and throws an http 403 forbidden when I hit the site. (In this scenario I am ...
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0answers
30 views

IP Failover - Configured, but disabled

I have multiple debian servers on which I configured "IP Failovers" or "Floating IPs". My floating IP is 10.0.0.2 and I have an A records: www.example.com pointing to this IP. I configured this ...
0
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1answer
61 views

What happens when I run dev server on 0.0.0.0? [closed]

When working on web-apps I'll usually run a development server on my local machine at localhost / 127.0.0.1, and if I need to show a colleague something I will check my ip address with shell command ...
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7answers
822 views

Best choice of private addresses for a “device area network”

I'm building an appliance consisting of several subdevices connected by ethernet inside the appliance. The appliance will connect to the customer network. The customer network can be using private ...
0
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1answer
51 views

Blocking an IP that is constantly accessing our website

Yesterday I noticed in our apache logs that there is someone constantly accessing our website, sometimes 5 times a second or so, and sometimes once in 5 seconds. However, it's happening 24 hours a ...
-1
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1answer
59 views

Several logical IP subnets within single physical Ethernet broadcast domain? [closed]

I'm using Xubuntu 12.04 and Wireshark to analyse network traffic in my ISP subnet I'm wired to. My system has the following IP configuration: IP Address: 10.10.103.28 /24 Subnet Mask: 255.255.255.0 ...
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2answers
52 views

Two Secure Sub Domains - Two SSL Certs - One IIS server - Do I need new internal or external IP address

I am trying to figure out whether I need a new internal IP, external IP or both to configure an IIS 7.5 server to run with two secure sub domains each using a different SSL cert, with both domains ...
0
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2answers
39 views

How do proxy servers change their IPs? [closed]

A lot of proxy servers say that they change their outgoing IP addresses every X hours (many seem to do it twice daily). How they do this? Is it something that a hosting company would do, or an ISP?
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3answers
96 views

Prevent IP conflict from untrusted network machines

I maintain a small LAN (192.168.1.0/24) on which we have several untrusted machines, where the users of those machines have administrative rights or are able to connect their own machines to the ...
-1
votes
2answers
52 views

Moving site to another server - inconsistent results between browsers on same computer

I've just moved a site from one server to another. Both servers are under the same Media Temple account - so the nameservers haven't changed, just the IP address. To help verify the move has taken ...
-1
votes
1answer
79 views

Enterprise DHCP server solution? [closed]

I have a network of about 1000 assorted devices, all of witch are running by static IP addressing. Given the size of the network and the lapse of technical advice, the addressing scheme is in chaos ...
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1answer
22 views

DNS cname TYPE and IP address

assume a website is aliased. for instance www.sunnyweather.com is the alias and CNAME is xyzverycomplex.sunnyweather.com. After you query and get the CNAME you then need to query the A Type for the ...
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1answer
42 views

Redirect specific IP using htaccess [duplicate]

I am trying to figure out if it is possible to do a 301 redirect for a particular IP address (in this case brute force password bot). I want to send this guy to a project honeypot link rather than ...
1
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1answer
50 views

Access web service from external network

I'm trying to deploy a web service (wsdl) on a machine running Ubuntu 12.04 and access it service via external network, i.e. the internet. At first, I tested with apache2 by starting it and accessing ...
0
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2answers
59 views

Finding IP address of an FTP account before DNS is updated

Ive gone through serverfault.com for various similar questions, but couldnt find the relevant one. I am at sixes and sevens with regards to server relate stuff. So my client have a vps and already ...
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0answers
23 views

IIS site advanced website identification host header list lost on reboot

I have several Windows 2003 boxes, each hosting 1-2 sites, all of which contrive to lose their list of host headers in... IIS -> Web Sites -> Site Properties -> Web Site -> Web Site identification -> ...
-2
votes
1answer
68 views

On my Amazon EC2 instance for a school project. I tracked visitor IPs and within 5 minutes an IP linked to cnn-noc.net (Huawei/China Netcom) appeared [closed]

I'm not sure if there are any rules here regarding posting specific IP addresses so I will take the address down if necessary. As aforementioned, I put up an IP tracker on my Amazon EC2 instance for ...
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0answers
42 views

netstat ? Huge buffer build-up

we are seeing the following: The netstat line which shows the buildup: 10:51:34|tcp 4294967258 0 192.20.1.228:53824 192.20.1.228:2500 ESTABLISHED The netstat command used to generate the ...
2
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0answers
97 views

Is it possible to configure a CDN so that it will step out of the way for a subset of regional IPs?

We have a website which targets customers in China, both expat and local Chinese. We have an ICP license which allows us to host in a datacenter inside China. Internet in China is actually as fast as ...
-4
votes
1answer
50 views

NAT mode virtual machines shows same IP address [duplicate]

I have two virtual machine running on a virtual box. VM 1 and VM 2 The network is in the NAT mode (default). Both the machines have the same IP address.So I assume that they are in two different ...
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62 views

Asign public ip addres to vmware virtual machine on linux host

We have server with linux installed on it (old debian 5.0). In this OS we have old VMWare server 2.0 installed (I know all is too old, but we don't have time to change it now) in which is installed ...
-1
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1answer
84 views

Using DHCP on virtual servers (ESXI) [closed]

I am setting up a small lab with 5 virtual servers running on VMware ESXi 5. The servers are: Network Services server (CentOS 6.4) LAMP server (CentOS 6.4) File server (CentOS 6.4) Zimbra mail ...
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2answers
47 views

Wireless Clients unable to connect to internet

Our small office network consists of 2 windows 2008 servers, and 14 workstations (8 running windows 7 and 6 running windows xp) and 1 router(wired/wireless). The main server has DHCP, DNS, Active ...
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1answer
46 views

Host not showing in ARP even after broadcast

serverfault community. What I would like: to determine the current IP of a host (a networked camera to be specific) What I have: its MAC, its previously documented hostname and IP What I have ...
0
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1answer
36 views

Move single ip address accross network or virtual machines

I'm currently trying to set up a small development cluster inside our enterprise network. We have a system to provision "disposable" virtual machines and move them to any of our 12 servers if needed. ...
0
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1answer
104 views

Can't obtain ip-addres from my DHCP server

I can't obtain a ip-addres from my dhcp-server and it's going trough a firewall (pfsense), The firewall(pfsense) and DHCP server are two virtual machines on my physical server(ESXI). As rules i use ...
0
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3answers
219 views

Identify the computer owning an IP address whose DNS record is 'borrowed' from an old computer

I am in the process of clearing out old computer accounts from an Active Directory domain that I inherited responsibility for. In this environment stale records are not removed from DNS so there are ...
0
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2answers
70 views

windows server 2008 dns and optaining static ip addresses

In our office we are using windows server 2008 as domain server. There are about 40 machines. I would like to change my PC network settings from "Obtain Ip address automatically" to specific ip ...
0
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1answer
28 views

with windows remote desktop is it worth turning off tsl to block by ip address?

I have been assessing this software for securing our cloud server's RDP connection. The problem is, it requires you to use RDP encryption, without TSL. This is because with TSL the ip addresses are ...
0
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0answers
11 views

domain generating webpages from an old installation

I recently started an account with a new hosting service and changed the "A" record of one of my domains to point to the new ip address. The domain is still generating webpages from the old ...
0
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0answers
20 views

Issues with SQL Server on 192.7.7.7 [duplicate]

We have a client who recently moved their SQL Server to a new physical machine with a different IP (it was previously on the same server as our own software). We're currently experiencing issues with ...
0
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0answers
59 views

CentOS 6: Drops its IP address after awhile, no ssh or vnc avail over LAN

I recently installed CentOS 6 on a tower on my LAN with IP address 10.10.0.7. I run it headless and access it over SSH or VNC (Remote Desktop) from an Ubuntu 13.04 Linux laptop. I've noticed that ...
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votes
1answer
168 views

Strange way to configure IP on Server with Hyper-V. We're doing something wrong?

Scenario (real with address/names altered): Windows Server 2008 R2 with Hyper-V installed. Originally, there were 2 machines let's call them FileServer and MainServer. The FileServer does a little ...
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votes
2answers
55 views

How to connect two wireless routers by powerlines [closed]

To extend the wireless range I bought a pair of powerlines. So one of them is connected to the main wireless router which is provided by ISP company. And the other side of the powerline is connected ...
0
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1answer
46 views

Can a router connect an IP network on one interface, and use one of the network's IP on the interface to the internet?

This is part of a question from a networking class. A router has IP 202.55.0.5 on the local network 202.55.0.0/21(through eth0), and uses IP address 202.55.0.6 to communicate with the internet ...
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2answers
261 views

One hostname and two servers in different countries

I have a site, let it be www.site.com/ (ASP NET MVC, but that's doesn't really matter) I have another site, let it be www.secondsite.vi/ (it hosts in Vietnam). The structure of the sites is the same, ...
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1answer
189 views

Interface IP address is removed automatically on CentOs running inside VirtualBox

I have CentOS 6.4 on which i am running virtual box. Inside virtualBox i have CentOS based VM which works perfectly fine. The NAT and HostOnly interface have assinged IP Addresses through DHCP and ...
0
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1answer
114 views

How do I change the source address of a tcp packet?

Is it possible to change the source address of any TCP packet ? I am aware of the fact that I will not receive those packets if I change the address, I only need to place a request on the server. How ...
4
votes
4answers
746 views

Making iptables easier to maintain

My network is completely locked down except for a few sites which are whitelisted. This is all done through iptables, which looks something like this: # Allow traffic to google.com iptables -A ...
-1
votes
1answer
73 views

Subnetting 2 subnets, 127 hosts on /24 class b network [duplicate]

I have an upcoming exam in networks communication. One of the available tasks for training on subnetting is the following: Suppose you are an ISP with a 132.1.32.0/24 address block. If 2 ...