The IP (internet protocol) is a protocol for transmitting data over packets ("datagrams"). It is the primary protocol of the Internet. "IP" may also refer to an IP address, the numerical address assigned to an IP-capable device.

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vsftpd returns wrong pasv_address

I use vsftpd on my CentOS6.4 home server. Recently I noticed that I can connect to the ftp but LIST command fails because vsftpd is returning wrong IP address when entering passive mode. I figured ...
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1answer
57 views

Beste way to change IP address for many domains at once [closed]

I have to move several servers to another location, which means that the IP address is going to change. Three of these servers - or better IP addresses - have several thousand domains linked to them ...
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0answers
47 views

batch listing all active ip addresses

I searched for this, then I tried to create a batch file to no avail. I have a great program (netwatcher) that gathers active IPs (using the arp table) in one address range only, but I have subnets ...
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2answers
41 views

How can I determine the IP of a remote host in a shell script?

I have an IP alias that switches between two hosts depending on the host's availability. (This is a very large network and the switch is done externally of local control.) I need to determine when ...
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0answers
2k views

Connect geny motion emulator to the internet

i have an adsl modem and a broadband connection I have set up my emulator as mentioned in this post like so: ...
26
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7answers
24k views

How can I own an IP address?

How can I own an IP address like I do with domains? I have done some research and it seems that you can't buy a single IP, but rather you have to purchase a range of IP addresses. Update : Important ...
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1answer
117 views

How to give temporary domain name in intranet?

In my system I have installed tomcat and to run a web application I use http://localhost:8080/app and if another person present in my intranet network wants to access my application then I give my ip ...
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2answers
878 views

how can i forward requests to my own IP address to a local IP address in my network (possibly using named)?

My setup I have a linux server running in my basement. I currently have my router looking to that server for DNS lookup, so I can use named to spoof a bunch of domain names to point to my local ...
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1answer
48 views

Setting up server with multiple routers and static ip

Happy new year! From the title of this post it might seem a very thing to do but still let me explain the whole setup here. We've two ISP connections with two different routers. One of them has a ...
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1answer
260 views

Communicating with devices on a different subnet

Let me start this off by saying that I am very new to how IP Address / Subnet Addresses work, and networking in general. This stuff is generally mystifying, and I've had a hard time understanding ...
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1answer
3k views

Batch file for changing IP address not working in Windows 8

I have used batch files for years on XP and Windows 7 to change the IP settings on my Local Area Connection. For example: netsh interface ip set address name = "Local Area Connection" source = static ...
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2answers
129 views

Domain name resolves to IP address in browser address bar

I have a site that I'm hosting on my home server, and I'm using a no-ip domain name. Port 80 is in use by another application on the network I'm using, so I set the no-ip account as a port 80 ...
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1answer
29 views

Can you assign an IP to a hostname that's assigned to another IP?

Yes, it sounds a bit inceptiony, but here's the reasoning. I need a static IP and one cannot be purchased. My router does support DynDNS however. Which means my dynamic IP is associated with a static ...
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2answers
33 views

foreign ssh login I don't recognize

The last ssh login to my server was seemingly from a computer I don't recognize. How can I found out who that was? aaubervilliers-651-1-60-191.w83-200.abo.wanadoo.fr I'm not in France!
68
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7answers
6k views

Are IP addresses with and without leading zeroes the same?

I have a security system and the network setting only allows a three-digit IP address. I can't set it to 192.168.2.100, instead I have to use 192.168.002.100. Are these two IP addresses different? Do ...
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1answer
278 views

What is the use of private ip address in Android mobile?

I was able to see my private IP address in my Android phone. While goggling what is my ip I got my public IP. As per my knowledge, In case of broadband connection Public IP is assigned by ISP and ...
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3answers
4k views

Multiple network interfaces on a single NIC in Windows

Here's the scenario: Lets say we have a wireless network that imposes bandwidth limit on IP addresses(ie every IP address has limited bandwidth). To get around this, we can obtain several IP ...
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0answers
27 views

Is there any reason not to use the external IP when accessing local resources?

Until recently I had always assumed that accessing the external IP address from within the LAN would go out to the internet and then back unless specially configured in the router. Apparently, if it ...
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4answers
90 views

IP Address of the systems in the Network In Linux

I am looking for a linux command that can be used to find the IP addresses of the different systems connected in the same network. All the systems are running Fedora 14. Thanks in Advance..
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2answers
144 views

Can a Linux machine have two the same IP addresses on different interfaces/networks?

Is it possible to have two the same IP addresses and subnets assigned from two different interfaces/networks? How would such machine behave? How would route table look like?
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3answers
517 views

IP Range Notation

I have the following IP ranges: 64.233.160.0 64.233.191.255 66.102.0.0 66.102.15.255 66.249.64.0 66.249.95.255 72.14.192.0 72.14.255.255 74.125.0.0 74.125.255.255 209.85.128.0 209.85.255.255 ...
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1answer
52 views

Someone is using my IP address and changing things [closed]

It looks as if someone is using my IP address, going into one of my work programs and changing things. How can I research this and see who it is?
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3answers
31k views

How do we find out who is using the router?

How do we see all the connections that a router currently has? Is there a way to determine the IP addresses of the connected "users"?
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1answer
72 views

Website resolves with old IP address - only on my computer

So I've been in touch with my hosting as I'm locked out of my website due to it resolving with my old ip address (I have tested this - i'm locked out due to the fact my old ip address just displays an ...
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1answer
43 views

Wireless Multicast transmission

I'm working on a high bandwidth application which uses multicast. Let's say there's 20 ip devices connected wireless to a router. One ip device sends a multicast packet to the multicast group. Will ...
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0answers
94 views

Unable to connect the Ubuntu EC2 instance to VPC LAN on AWS using secondary NIC adapter?

Infrastructure setup: VPC is created with 192.168.254.0/24 netwok Private subnet within VPC (Virtual Private Cloud) is created with 192.168.254.0/25 network Public subnet within the VPC is created ...
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1answer
86 views

How do regular expressions work in htaccess to redirect an IP range

I've been trying to redirect an IP range from one link to another. I can do it for a single 256 address block: RewriteEngine On RewriteBase / RewriteCond %{REMOTE_HOST} ^111\.111\.111\. RewriteCond ...
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1answer
35 views

Is blocking / allowing by IP using .htaccess (or equivalent) enough to secure a resource on a web server?

Currently in the process of setting up a web infrastructure to host my web application where security is the most important factor and I need to be able to allow only specific IP addresses to a ...
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5answers
1k views

getting an external ip address on a LAN pc through proxy

My office computer works on local office LAN and has ip address like 10.12.133.45. i can access the internet through the office proxy(when i got to a site like whatismyip.com it shows the proxy ip) ...
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3answers
9k views

What is the maximum number of IPs that can be assigned to a given computer?

I really need to know this for a linux server, but since it also applies to client OSes, I figured the question should be posed here instead of server fault.
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3answers
5k views

Find all past desktop IP addresses

Is there a way to find some type of log file that saves all IP address that were assigned to a desktop? I changed an static IP of a desktop (switched it to DHCP) of mine and i can not recall what the ...
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2answers
68 views

How do I determine who the ISP of an IP is?

I'm looking for a way to find the ISP of a given IP address. How do I know what ISP assigned this IP address to a user? Edit: Thanks for the information about whois lookup queries @LPChip and @AFH! ...
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3answers
615 views

How to find the IP address of a router

I live in a dorm where many students have setup small wireless networks. There are two of this networks that are very close to my room as the signal is very strong. Our college uses DHCP to assign IP ...
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4answers
67 views

How can I check what is my ip on any particular endpoint?

I know I can do curl curlmyip.com or something like that, but that just shows me the ip curlmyip.com is seeing. Is there any tool I can use that tells me what's my ip on the endpoint for any TCP ...
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1answer
85 views

What does it mean if a public IP address looks like a private IP address?

For example, I go to http://whatismyipaddress.com/ and it tells me that my IP address is 192.X.Y.Z. What does this mean? Isn't that a private IP address? How can I find my real public IP address? ...
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0answers
16 views

Streaming same video on four different ports with same IP

I want to stream a video on four different ports on a same interface and also needs to receive in the same way. I think receiving is OK as i can have socket but how to stream the video in that way in ...
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1answer
58 views

IPv4 interface number

I came across a question in Self Test Software for MS Exam 70-642 Which command adds route to destination server, with IP address 10.51.0.0 and subnet mask of 255.255.0.0. Next hop should be ...
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1answer
83 views

Actual Public IP different from Public IP shown on ip lookup

When I test my connection on services such as whatsmyip.com, I get 112.134.xx.xx as my public address. When I check the ADSL connection status on my router, it shows a totally different IP address ...
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votes
7answers
23k views

How to get LAN ip to a variable in a Windows batch file

I'm streaming audio from my Windows 7 laptop to a sound card attached to a router. I have a little batch script to start streaming. REM Kill any instances of vlc taskkill /im vlc.exe "c:\Program ...
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2answers
73 views

Why does nslookup for espn.com give an IP that goes to go.com?

If I do an nslookup on espn.com, an IP is returned 199.181.132.250. When I put this value in the browser I get go.com. If I had add a 'Host header to the request, I still end up on go.com. What am I ...
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votes
1answer
550 views

Overlapping address error in Packet Tracer-Possible subnet error

I am working on my hands on final exam for Networking Fundamentals. I have accomplished everything except for putting the 4 devices on two separate subnets. These are my subnet calculations: Given ...
0
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1answer
75 views

Does this mean the DoD is listening to my D-Link Router?

I've only recently been monitoring my router activity and this Incoming listing from a DoD IP address is almost always present. It looks as if they are using the IGMP Protocol to sniff at my domain, ...
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1answer
632 views

CentOS 7 can't ping from server

I'm having a Strange issue with CentOS 7. I have my server setup with 2 NICs a private network and a public network. I'm able to ping the server on both the private and public IP. But I cannot ping ...
2
votes
2answers
3k views

Public IP shows strange characters and Facebook registers logged-in session to Mount Laurel, NJ

I'm encountering some IP strangeness today and hoping to find an explanation. In short, I'm based in Seattle, WA with my ISP being Comcast. While browsing Facebook's account settings, I noticed that ...
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2answers
548 views

Linux packet forwarding performance

I’m experiencing performance issues with Linux packet forwarding. I use an old laptop as a router, with iptables to handle masquerading and ipv4 forwarding turned on. Intranet network is connected ...
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1answer
44 views

Propagating visitor IP through nginx

I have a node.js site fronted by nginx. So that when request gets to the site the IP in the request is 127.0.0.1 Is there anyway to modify the request while it is under nginx control so that node.js ...
3
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2answers
269 views

Specific ip settings for different wifi access points

I have a situation where I want to connect a tablet to two different networks, not simultaneously but switching from one to the other (and at different locations). The tablet is running on Windows ...
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2answers
710 views

Unidentified network on windows 8 pc when hard wired to Airport extreme

I have a weird problem which not been able to resolve as of yet. Okay so let me explain, I have recently had fibre optic installed, and I decided to use a new Airport Extreme (instead of the router ...
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1answer
55 views

Find IP with Batch

I need to use a command of some sort to find the external ip of the user of my batch file. I have tried many methods but I need the batch file to recognise the ip as a variable of some sort so it can ...
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0answers
136 views

Netgear WNCE4004 Wifi Adapter Connection Trouble - Static IP Issue?

Here's my situation: I'm in the military and live in an accommodation block where internet is provided by an unprotected wifi network (I'll call this 'service wifi'). To get internet access, I login ...