Tagged Questions

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

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0
votes
1answer
33 views

Are both IP address and default gateway needed on a switch to enable communication between different vlans?

I know that a router is necessary for VLANs to communicate with each othe, but I would like to know if both IP address and default gateway need to be configured on the switch in order for different ...
-1
votes
3answers
39 views

Disable server access by hostname

I'm using Apache HTTPD Server under Debian Squeeze. How can I prevent users to access my server by the server hostname(dummy.xxx.com) or ip address(xx.xx.xx.xx)?! For example: I do not want them to ...
0
votes
1answer
17 views

Tomcat 5.5 IP redirect to Hostname

How to setup Tomcat if my user entered "http://192.168.0.1:8080/axis2", it will redirect to http://servername.com:8080/axis2? I want the url/hostname appeared on user's web browser instead of ip ...
5
votes
1answer
72 views

Can a limited broadcast packet contain destination MAC address other than FF:FF:FF:FF:FF:FF?

Can a limited broadcast contain destination MAC address other than FF:FF:FF:FF:FF:FF? If the answer is true, could you provide an example of a protocol that uses a packet like this. Ok, to elaborate ...
4
votes
4answers
114 views

Share one IP address with a simple router

We have just moved into a new office and have been given our 'internet connection' in the following form: One Ethernet cable in the corner of the room An IP address with subnet mask 255.255.255.0 ...
-3
votes
2answers
82 views

Why does ip address have a dash [closed]

Why does my ip address have a dash at the end of it? It was assigned to me by AT&T Uverse. 106.206.186.224-8
0
votes
0answers
33 views

DHCP server not assign valid address [migrated]

In my home network, I have wireless router and DHCP server running on it. When I try to connect with my laptop to my home network, I get following IP address: 169.254.76.100 255.255.0.0 That is ...
-4
votes
1answer
47 views

Difference in IP addresses

I have noticed that ipconfig and a website that tells you what your ip is, are different. Two cases: E.g. I rdp from my laptop to my PC via an IP on that is always in the same network ID (so first ...
-3
votes
0answers
18 views

The default server IP shows when using PHP mail() while my website is hosted on another IP , can I use my website IP

I have a server with multiple IPs. 123.123.123.123 Default 123.123.123.124 123.123.123.125 when using PHP mail function from a site hosted on 123.123.123.124 the email ends up in the junk ...
2
votes
6answers
108 views

How reliable are IP address-based firewall restrictions?

On some of my production systems that need to be accessible outside of the LAN I will sometimes add a firewall restriction at the edge to only permit traffic on, say, RDP from a specific origin IP ...
2
votes
1answer
64 views

Could not display DNS Resolver Cache in Windows Server 2008 R2 in Hyper-V environment

Currently I had a Windows Server 2008 R2 running in Hyper-V, previously it still able to access any kind of website with domain name. Recently, it failed to do that any more, and I found out that I ...
1
vote
2answers
96 views

Multiple ip to single interface

i'm using openstack, but i think this is a more general problem. Actually i've a dedicated which comes with 1 ip address, i bought another one, and added using openstack's nova-manage cli. So now ...
0
votes
0answers
22 views

Free shared host domains/reverse whois tools? [closed]

I was wondering if anyone was aware of some good, free web services for finding the domain names used by one IP address (usually for shared) and for reverse whois lookups? Examples of finding domain ...
1
vote
1answer
91 views

Difference between static IP and elastic IP address?

With Amazon's EC2, to assign an IP address I create an "Elastic IP", however it seems to just give me a static IP address. What is the difference between a static IP and an elastic IP? Or is it the ...
-5
votes
1answer
42 views

How to obtain static IP? [closed]

My service provider doesn't provide me static IP unless I pay them. Is there any other way to achieve this?
0
votes
2answers
102 views

Is Bandwidth additive?

In our small office, there are two requirements:- A very reliable internet connection. 1> A minimum bandwidth of 4 Mbps. 2> An easy way of meeting the above two requirements is to get a Leased Line ...
-4
votes
0answers
29 views

DNS server ip anycast on hosting company [closed]

I do like to setup dns server(linux) in 3 - 4 regional location. I want to setup ip anycast, it is so hard to setup. I have to have my own ip address and equipment. That is too much now. No company is ...
-2
votes
0answers
33 views

How to route/nat Hamachi IP to LAN IP? [closed]

I have a game server (GS) running and accept connection via Hamachi. In this case, my GS have Hamachi IP 5.5.5.5 On LAN, GS have IP 10.0.0.10, Database server : 10.0.0.20, Web server 10.0.0.30. GS ...
0
votes
1answer
36 views

Linux NAT server with two uplinks

In linux FC9, setting eth0 has default, ping -I eth1 IP address is working fine. In FC14 tehe same does not work. The above check is done to test the connectivity from that interface so that if the ...
1
vote
0answers
23 views

What's the correct way to step a Draytek 3510 IP PBX to avoid line echo?

I've setup a Draytek 3510 IP PBX with 10 VigorPhone 350 handsets. It's all connected through an unmanaged 48port gigabit switch - all structured cabling except patch leads are Cat6. Dhcp is handed out ...
0
votes
0answers
29 views

What happens if a DNS requsted was not found in ther server? [closed]

Hello I am a newbie in networking. After trying and reading Networking and the Internets and the web I have not managed to find the right answer to this question "Why it is required to configure a ...
0
votes
3answers
110 views

How can I understand if an IP address is dynamic or static?

I have an IP list and I have to seperate them as static ones and dynamic ones. Is there any tool or way to do that? Thank for any advice...
0
votes
1answer
64 views

IP Config resets to default settings in Linux every night

I have a linux server (centos 5) which for the past 2-3 weeks has been resetting it's ip config information to a local ip (192.168.x.x). In /etc/network/interfaces I have: auto lo iface lo inet ...
1
vote
3answers
55 views

User-based HTTP Host to IP redirection on a Windows Terminal Server

I've just setup a Windows 2008 R2 Terminal Server with IE9, it's intended to be used for testing. Unfortunately the web-bods tell me they ALL have a local apache on their machines and they've all ...
1
vote
1answer
47 views

Windows Server 2008 is blocking IP of some clients

I'm having a very weird situation on my Window Server 2008 R2 hosts. In these hosts, we have an ASP.NET Application hosted with IIS 7.0. The problem is that, eventualy, one of the clients' IP is ...
1
vote
1answer
36 views

Easy way to shorten up bind9 zone config?

Is there an easy way to put some kind of variables into bind9 zone files? Lets say i have a bunch of different zone-files, and i would like to define my ip's in one config file. So that i can make ...
0
votes
2answers
89 views

How is a public ip adddress accessible anywhere from the internet?

If my machine has a public ip address, then any one from any corner of the world can access this ip address. How does this happen? I mean where is my ip address updated or where does the requester see ...
7
votes
2answers
105 views

How even is the distribution of digits in the last part of an IPv4 address?

I have a redirect script operating on a website I created. It sends 1/3 of visitors to site A, 1/3 of visitors to site B and 1/3 to site C. It works by dividing the last part of the users IPv4 ...
0
votes
0answers
32 views

What does `ec` mean in `HWaddr ec`? [closed]

When I do ifconfig on my laptop I get HWaddr ec and than an address, this is next to eth0. Note that my IPv4 address only appears next to eth1 so I assume my laptop uses the eth1 network interface. I ...
0
votes
1answer
31 views

Identifying Google company resources versus App Engine resources

We are experiencing a problem with scraping on our e-commerce platform. It's not the scraping that is the problem per se, it's that whoever is doing it is spoofing a stale referrer full of our ...
3
votes
3answers
162 views

How can I add multiple private IP addresses for a single machine?

I have one Windows cloud server on Go Daddy. They gave me 3 public IP addresses and one private IP address per machine. And I know for more public IP addresses I have to call Go Daddy. How can I add ...
2
votes
2answers
48 views

Can I use address space from one Internet Registry in the region of another?

Is it possible for me to, for example, purchase address space from APNIC and then use those addresses in Europe or the United States? Would there be a cost or paperwork involved? Thank you.
0
votes
0answers
53 views

Blocking IPs that make excessive connections with Windows Firewall

Is it possible to automatically ban IPs that make more than 5 to 10 simultaneous connections using Windows Firewall on Windows Server 2008 R2? Add: I'm trying to throttle the traffic of the port ...
0
votes
2answers
42 views

How to use the 2nd default IP address on Burst.net VPS?

I just bought a VPS from Burstnet. The VPS comes with two static IPs but I dont know how to use the second IP. When I check the IP address, it always shows the first IP. How can I let it show the ...
0
votes
4answers
121 views

IP addresses not listed for IIS website bindings

Recently purchased a windows cloud server godaddy. Now i installed iis7 and all other required software. And i have 50.62.1.89 and 2 more public ips. Also i have a private ip 10.1.0.2. Now the problem ...
1
vote
1answer
125 views

How do I make servers visible on my VPN?

I'm tinkering with web servers on Rackspace, trying to figure out if I can set up a website with public parts and also private parts that are visible only via a VPN connection. I have 2 servers ...
0
votes
1answer
57 views

Is there a service which allows me to shift where an IP address actually resolves to?

What I mean is, I have my clients point their A-Records to an IP address of mine for hosting purposes. Then, when I decide to move data centers, I have to make all of them point their A-Records to a ...
-4
votes
0answers
49 views

hacking ip block [closed]

Possible Duplicate: My server's been hacked EMERGENCY My server was hacked and hackers blocked all VoIP connections to the server from my country by a way or another, I cann't find any ...
0
votes
1answer
52 views

Subnetting advice [closed]

I am trying some simple subnetting via Cisco Pacjet Tracer, this was all working fine below but now its causing problems, can someone just verify that this scheme below is fine. Router 1 S2/0 ...
0
votes
1answer
42 views

IP Table, what does this construct mean ::INPUT ACCEPT [0:0]

I am looking at an IP Table construct, what does the following mean : :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] thanks
4
votes
2answers
84 views

Can I buy an IP address range without buying from or becoming a member of my regional NIC?

My company has been investigating the possibility of buying our own IP ranges as we're growing at a very fast rate. However, the cost of doing business directly with our local NIC is proving to be ...
-1
votes
0answers
26 views

Virtual IP Phone? [closed]

I need to find a phone solution for someone with a disability. They are unable to use the buttons on a desk phone, or even pickup the headset for that matter. I was looking at getting a hands free ...
1
vote
2answers
48 views

How can I separate a VMWare Server from the host's MAC Address on my router?

I'm running a Debian LAMP Server in VMWare Player, using a bridged connection. However, on my router the VM is showing up with the same MAC Address... therefore I can't set the VM to a static ...
1
vote
1answer
34 views

Strange behaviour in browser when accessing IIS sites on intranet

Developer confused by intranets =P So I've got a dev IIS server running on the local network with a fixed IP. I've got a few applications setup in IIS bound to different ports. I get the strangest ...
-1
votes
0answers
35 views

how can i change my static ip? [closed]

Hey i tryed the similier posts selutions but couldnt get it to work... i tryed: releasing and renewing the WAN. unplug the rounter and wait for a night. and i looked on the local area connection ...
1
vote
4answers
66 views

Different Routes For The Same DNS

I don't know the right term for this concept. But basically, I just want to reroute internal traffic to go directly to a server within the network instead of going around the internet. The domain have ...
0
votes
3answers
51 views

Adding ESX host through VPN based IP

We have many esx host in branch. To manage them, we using vsphere client for each of them. Brach office and head office is connected with VPN based IP. For each branch is connected with 1 Mbps ...
1
vote
3answers
64 views

Accessing LAN IP address from outside

I have an SCM server connected to my office LAN which runs the SCM tools like git, svn, etc. The office router has been configured with 'Port Forwarding' so that the SCM server can be accessed through ...
0
votes
2answers
61 views

How to route/redirect my Internet traffic through another router/node on the net?

I am trying to access some content on the Internet which has some stupid geographic restrictions (access limited from a specific country. Most likely the restriction is IP based. I happen to have ...
3
votes
1answer
52 views

detecting an ip behind proxy

For testing purposes, I am using my machines ip provided by the isp as the address to connect to the server from my phone(my machine/pc is the server). Since ipaddresses are unique in the internet, I ...

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