0
votes
1answer
30 views

Suddenly blocked from a site

Suddenly from a time to now I haven't been able to go to a site I used to go frequently for maintenance (Wordpress). I tried different browsers, restarting my laptop, clearing cache, history, cookies. ...
3
votes
1answer
151 views

Ethernet connection shows unidentified network with no internet access

For years I've used a physical Ethernet connection for my internet access, then a few days ago it went down and said it was an unidentified network with no internet access. I dug out a wifi card and ...
3
votes
1answer
49 views

when describing an IPv6 subnet, what does the /n notation mean, where n = 64, 128, etc.?

I have seen IPv6 subnets described as /64 or /128, particularly by hosting companies. Does a /64 subnet mean there are 64 ipv6 addresses? Or 64bits worth of ipv6 addresses?
-1
votes
1answer
224 views

How can I acces my raspberry pi server from outside my network?

I've got a Raspberry Pi set up as a server. I can acces it with 192.168.1.2, because i'm in the same network. Now I would like to be able to acces my Pi from outside my network (eg school). I want to ...
-1
votes
1answer
71 views

Classful addressing and routers networks [closed]

With classful addressing there are basically three classes of networks, a public or private organization can request,for its hosts,a network of class A,B or C with A being the largest followed by B ...
0
votes
3answers
230 views

10.x.x.x IP address found in traceroute

From what I've read, 10.0.0.0 - 10.255.255.255 is a private address space. So I ran a tracert over the internet and I saw an address 10.15.25.98. How is that possible? Thanks in advance! Tracert Log: ...
69
votes
9answers
11k views

Can you grab any IP address on the Internet?

On a personal network (LAN) one can simply grab an IP address. If you choose the same IP address as an existing client, you get problems. There are companies like IANA and ICANN that are in charge of ...
3
votes
1answer
244 views

Who is responsible for proper routing ? T-Mobile is using my IP address

I have an odd problem and I'm not entirely sure who, if anyone, is responsible for getting it fixed. Here is my situation: I have rented a dedicated server from Hetzner. They have provided a server ...
0
votes
2answers
271 views

Do identical IP addresses exist in the public Internet?

So I've been reading about CIDR. If I'm not mistaken it is possible to assign the same two IP addresses to two machines provided they have different prefix lengths (different subnets). I was wondering ...
0
votes
2answers
393 views

How to browse to the IIS homepage on an external device after installing Windows Server 2012?

I installed Windows Server 2012, in my home network I can type the ip address of the server in any browser, on any device and the IIS homepage opens up. When I want to open the website on an ...
1
vote
1answer
1k views

How to find CIDR subnet for a public Internet IP address?

Usually I do not worry about subnet of an IP address on the public Internet, but after I began using Amazon EC2 firewall, it got me thinking. EC2 firewall configuration requires an IP to be written ...
0
votes
1answer
73 views

How to get the IP of the computer, of searches in my google account? [closed]

How do I get the IP of the computer that made researches in my google account, which was recorded in history that is accessed through my google account? Thanks so much!
0
votes
1answer
460 views

Why does my netgear WNR 1000 router keep giving the wrong IP address?

For a while my internet has stopped working. My house has two routers, one for the wifi which is a Belkin and the other for routing wired connections for home entertainment systems which is a Netgear. ...
2
votes
2answers
222 views

Why does ping sometimes decrease in a traceroute?

I've run a traceroute. (see image). The "Avg" column shows that on hop 7, the ping actually decreases between ping 6 and 8. This can't be due to an anomaly because this data is averaged over 24 ...
3
votes
1answer
214 views

From where does IP geographical location data come?

I don't understand how some sites (e.g. https://www.ultratools.com/tools/geoIpResult) show country and town for an IP address. For example 193.45.10.135: Continent: Europe Country: Germany Country ...
14
votes
7answers
9k views

Is it possible for many domain names to share one IP address?

Is it possible for many domain names to share one IP address? For example, www.xjtl.com, www.fmie.com, sdmfl.com, etc. Hundreds of domain names share just one IP – when you do a DNS query for each of ...
1
vote
3answers
377 views

Network Usage Monitoring

We want to know how much internet is used by our employees. We tried Lan Detective software. But we have to install and run that software in all PCs. So any alternate solution? How can we get internet ...
1
vote
3answers
688 views

http://192.168.1.1 not working

I am very new to this, so please bear with me here. I was looking to set up port forwarding for a game server. (Edit: TO HOST A MULTIPLAYER FLASH GAME ON MY IP ADRESS) I needed to log into my admin ...
-1
votes
2answers
71 views

What is the IP of my Windows XP computer? [duplicate]

Possible Duplicate: Fastest method to determine my PC’s IP address (Windows) On websites like whatismyip.org the IP we get is the IP of the modem we are using for internet connection. How ...
0
votes
2answers
140 views

Sharing internet connection by using a wireless modem

I have one Ethernet cable and one IP address for per PC at work. I need to use only this IP address and DNS to connect internet. Now I have bought a new laptop and I want to connect it to the internet ...
4
votes
2answers
5k views

how to hide public ip adress on irc channel

I have public ip address (for example 77.77.77.222). When somebody type /who on irc channel he sees: Linkas@77.77.77.222 How can I hide under a domain? For example Linkas@mydomain.tk
23
votes
8answers
26k views

How can I get my public IP address from the command line, if I am behind a router?

Is there a way for me to get my public (WAN) IP address on the command line? I am behind a router (LAN network), with a dynamic IP address assigned by my ISP. I have seen solutions using an external ...
3
votes
2answers
2k views

How do DNS servers work?

I know that a domain name is resolved by a DNS server to an IP address, which is then used to reach the requested server. I'm slightly embarrassed that I don't know some of the details of how this ...
0
votes
1answer
787 views

Sony Vaio Laptop loses wireless connectivity after few minutes

I have a problem with my laptop. My laptop loses its internet connectivity randomly. Sometimes it's okay for an hour but usually the problem occurs after 5 min. When I run these commands, I can ...
1
vote
1answer
354 views

Routing Between Intranet and Internet

I have 2 ADSL Modems: One is for intranet connectivity, the other is for accessing the internet. I connect the intranet to my PC on network interface "Local Area Connection", and connect to internet ...
2
votes
3answers
320 views

Number of subnets for specific mask

Question source Problem: Your company has been assigned the following IP address: 192.112.136.0 /27 Your group has been assigned the fourth subnet. Question 5: How many useable subnets ...
1
vote
1answer
832 views

Printer - can't access through Centreware Internet Services

We have three network printers (Xerox WC 7125). We also have YSoft SafeQ installed on our server (we add new printer for our users by always entering the same IP - server's). Two of printers are fine, ...
1
vote
3answers
203 views

Why do I not get to the same website when using this IPv4 address instead of the url?

When I capture packets using the packet analyser wireshark while visiting http://en.wikipedia.org/wiki/Hydrogen I can see packets that use the HTTP protocol (e.g.a GET request). My Get request uses 4 ...
0
votes
1answer
37 views

I have just created a subnet for a local network, connecting to a standalone server on another network, now I cannot connect to the internet

I am just learning some new aspects of servers and networking. We have a network of 5 subnets that all interconnect with each-other. In order to get two computers on the subnet that we were setting ...
1
vote
1answer
1k views

How to find out all IP ranges belonging to a certain AS?

I want to know what IP ranges are belonging for example to the AS714. How do I get this information? I know how to do the reverse way, which is easy with whois. But the other way doesn't seem to be ...
1
vote
2answers
120 views

IP routing to neighbour

If I am connecting directly to my neighbour next door who is using the same broadband provider, will my traffic go directly to him or will it go through the ISP? Could you explain how this routing ...
0
votes
1answer
138 views

Added a new line to hosts file but doesn't work

I added this line to /etc/hosts: 127.0.0.1:8000 myapp.com But when I access myapp.com from a web browser, it doesn't go to the IP that I listed first. Any idea why?
4
votes
1answer
899 views

What is the purpose of ports?

I have a few questions in regard to the following explanation of ports I found. The Application layer talks to the Transport layer through a port. Ports are numbered and standard ...
2
votes
2answers
1k views

Hardware/Software behind IP/TCP layers encapsulation

Every tutorial I read talks about how the layers "communicate" with each other, but never mentions what hardware/software receives, adds on, and sends each layer of control data. What piece of ...
0
votes
3answers
142 views

Resolving IP address from google services

I was using my work computer today, and connect to various internet services (e.g. google, gmail, etc.) Is there a way to check the IP of my work computer from home by looking at these internet ...
1
vote
3answers
134 views

How is it possible to detect whether or not a device is “routing”?

The building I'm in provides ethernet ports through the walls in each room, but it is stated in their policy that they "do not allow wireless routers." They have been known to deactivate certain ...
2
votes
2answers
823 views

Is it possible to statically assign public IPs and use DHCP on the same router?

My ISP has given me a set of public IP addresses I can assign to various devices. But they have been controlling everything, and I've had to call them to make any changes to the configuration. I'm ...
2
votes
3answers
2k views

Does every computer have a public IP address?

Does every computer have a public IP address? Or does a computer only have a private IP and the internet router that the computer is connected to has the public IP?
2
votes
3answers
3k views

Networking and routing of private IP ranges

Internet servers are not supposed to route private IP ranges such as 192.168.x.x. How do they achieve this? Should an administrator enable a specific firewall rule on the router or is it coded in ...
0
votes
1answer
134 views

Is There IP Address File Resolver Plugin For Firefox And Chrome?

Let me explain. When i right click on image, i see its size and other properties, however i would also want to see on which host it is located. It would be nice to have such plugin for Firefox and ...
2
votes
3answers
525 views

What's a good IPv6 tutorial? [closed]

How do I get started on IPv6? There are many urban myths about IPv6 (today, I heard that enterprises don't like IPv6 because they can't control their BLOCKS like they do today with IPv4). Is there a ...
2
votes
1answer
522 views

Separate computers in my apartment can't communicate to each other?

In my apartment, the management provides the building with a network connection. I have my computer plugged into the ethernet coming out of the walls, and my friend who also lives in the apartment ...
2
votes
0answers
66 views

Server IP Release Time [duplicate]

Possible Duplicate: DHCP Lease time Hello, With router IP Address does not change at all as long as you do not touch modem. If computer is connected to modem directly IP changes every hour ...
1
vote
2answers
861 views

DHCP Lease time

I have computer connected to internet directly. But once every hour IP changes and I do not want that for sure. How can I set IP lease time for like a year or so? Thank you
2
votes
4answers
1k views

Let vmware virtual machine connect to the world thru specialized interface

I have vmware player, and I am running a special OS therein. My computer has two network interfaces, let's call them eth0 and eth1. I want to configure my computer so that all network traffic goes ...
0
votes
1answer
219 views

Accessing Euro Internet from USA (via Europe)

I am doing some traveling work that requires me to have an european IP Address. This is fine when I am abroad but it is tough when I am the US or elsewhere. My first instinct was for to buy dedicated ...
4
votes
3answers
4k views

Find other people's IP address

How can I find the IP address of others on the internet, such as the IP address of someone who posted a comment on a blog post?
10
votes
18answers
8k views

Can the Internet work without DNS?

If we have an IP-based system of identifying nodes on the Internet why is there a need for DNS?