the IP protocol and IP addresses

learn more… | top users | synonyms

19
votes
3answers
7k views

IP to Country console command

Is there a console command that takes an IP address as an input and shows its geographical information like city, country, ISP, etc.?
4
votes
6answers
1k views

Find my computer on a LAN network

Let's say that I have a computer plugged in to a local network using a dhcp connection, so it will get a different IP every time. Is there a way to find this computer (so the IP) from a different ...
3
votes
1answer
177 views

add route in Linux if sub-net, where gateway is situated, is not configured

I have a PC which has 192.168.1.1/24 configured to eth0 interface. Now if I try to add routes via 10.10.10.254, the ip utility reports that No such process: root@PC:~# ip neigh add 10.10.10.254 ...
0
votes
0answers
13 views

Connecting to a LAN Device from Different Interfaces on Different Networks

Is there a way to connect to a LAN Device when many different network interfaces are connected to different networks? I find that it can differentiate when the IP address is within only one of the ...
0
votes
2answers
127 views

How can I change Ubuntu server IP Address to the web address?

How can I change Ubuntu server IP Address to the web address? For example, the address that I need to access on the browser is 192.168.x.xxx. How can I change to dev.robi.local? Thanks!
1
vote
2answers
289 views

ifconfig command showing internal ip address

I'm using centOS 6.3 on virtualbox as guest OS on Win 7 host. My problem is when I use ifconfig command in terminal, I'm being thrown internal IP address(10.x.x.x). However, when I googled "my IP ...
3
votes
1answer
37 views

How can I find my client's linux box on the internet automatically?

I'm looking for a way to have a client's machine "phone home" periodically so that I can easily do a ssh login if necessary. I was thinking a simple script that grabs the public IP address and posts ...
2
votes
1answer
41 views

mechanism of IP alias

I am a Linux admin beginner and knew that Linux can do so called ip alias today for the first time. My question: How can one NIC have two IPs at the same time? IP addresses must be identified by MAC ...
24
votes
3answers
46k views

show gateway IP address when performing ifconfig command

Currently, when using the ifconfig command, the following IP addresses are shown: own IP, broadcast and mask. Is there a way to show the related gateway IP address as well (on the same screen with ...
1
vote
2answers
82 views

Meaning of address netmask without route to subnet?

My understanding is that the netmask of the interface tells what subnet the interface belongs to. Meaning of this information is that the routing system knows that packets to this subnet should be ...
-2
votes
2answers
77 views

my linux pc not pingable using hostname

From a remote machine I am able to ping my computer by its IP address, but not by its hostname. How can I make it accessible by its hostname as well?
1
vote
1answer
172 views

How to add static route in Virtual Guest to reach Host network?

I have a Linux mint virtual machine running with public IP as 203.x.x.x with bridge mode Ethernet adapter whereas my physical machine IP Address is 145.17.x.x subnet. To access my physical PC's ...
2
votes
1answer
333 views

IP address assigned when using 3G USB modem

If I use a 3G USB modem with a SIM card on my linux machine, do I get the IP address assigned by the carrier just as my phone when it uses the same SIM card, or do I get a different IP address (as it ...
0
votes
0answers
240 views

Can't find connected devices on wifi network

I've been having some issues with finding my devices on the network.. Ettercap & nmap and everything else I have tried does not find a host that is connected to my gateway? I have three devices; ...
0
votes
0answers
57 views

server1 ssh's to server2 but server2 sees server1 by it's private ip due to both servers being on the same firm/network

I ssh into server1 via it's public IP from server2. I then ask server1 what my IP is. i.e. server2's IP. It shows me server2's private IP. I want it to show me server2's public IP. If server2 was ...
1
vote
2answers
34 views

How to use routing to use the next available inetface

My system has 2 interfaces (eth0, eth1). I open a socket and bind it with an ip attached to eth0, now I want the OS to route the packets to another ip (which attached to eth1 but i'm not sure it's ...
1
vote
1answer
74 views

Networking fundamentals: what IP is assigned a NIC if there is no successful DHCP negotiation?

On Windows computers, when there is no DHCP server found on the network interface, it gets assigned some IP address like: 169.254.x.x So it is supposed you can find it on the network using tools ...
0
votes
1answer
135 views

How to bind IP address to MAC in autoyast?

Is it possible to bind IP to physical address in autoyast config file? The following code doesn't do the trick: ... <interfaces config:type="list"> <interface> ...
0
votes
1answer
562 views

Arch-Linux after system-update no internet connection but connection lan

Yesterday I updated my Arch Linux after 2 Months with sudo pacman -Syu and after the reboot I don't get any connection with the Internet neither from Browser nor with Skype, etc. When I try to ping ...
1
vote
1answer
26 views

installed application keeps open port

I installed an application (a text editor) and it keeps a connection alive. I blocked the IP with iptables, but the port stays open. netstat shows: tcp 0 0 127.0.0.1:<port> 0.0.0.0:* ...
2
votes
1answer
443 views

Local port is not accessible with public IP address

I have a linux server which has public IP and Private IP. So, when ever I login with public IP, the terminal directly shows private IP. example: $ ssh root@55.27.XX.XX root's password: ...
2
votes
1answer
129 views

If I use an SSH tunnel to forward a remote port to a local one, and my IP address changes, will that tunnel still work?

Simple - trying to use my personal computer as a server, by forwarding a public static IP address's port to mine, but I'm worried about Comcast pulling out the rug from underneath my feet and changing ...
0
votes
0answers
561 views

VirtualBox network interface with custom CIDR and internet access

I have an OpenStack setup running on VirtualBox. The host OS is Ubuntu, and the guest OSes are all Ubuntu. I use 3 VirtualBox VMs to setup and install OpenStack. My OpenStack setup further spawns ...
1
vote
0answers
59 views

Can two USB RNDIS gadgets with the same IP connect to one computer's VNC servers?

I have two android gadgets set to USB tether mode, connecting to one computer. I'd like to have one gadget connect to VNC on port 5900 and the other on port 5902. When they're both connected, the ...
1
vote
2answers
684 views

set up centos7, configuration of ip

when I'm searching for ip setting of centos 7. Responed is centos 6.X 's or ealier, and I tried. But how is the default DHCP configuration of centos 7. Some configurations have been done like I want ...
2
votes
1answer
110 views

what does none in “tun0@none” stand for?

In the output of ip a I just got the lines: 4: tun0@NONE: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 100 What does the NONE in there ...
0
votes
1answer
314 views

Routing tables with two network interfaces

When I try to access the internet with my raspberry pi via ethernet, it works, but when I do ifdown eth0 and try to ping any server outside my home network, it tells me connect: Network is ...
0
votes
1answer
155 views

Problems setting up Ubuntu Machine as a router

I have been at this for over 24 hours, here is what I have so far. -I have an Ubuntu Server running version 14.04.2.amd64, called SV-01 -SV-01 has two NICs. ETH1 is for the external network (goes to ...
1
vote
2answers
198 views

`ip addr` in one-line per interface

I would like to print specific information about network configuration for different interfaces over all the servers I manage: the interface name the interface ipv4 address the interface hardware ...
2
votes
3answers
68 views

Is there a command to deny an IP

Looking at the access log I found excessive access from an IP address. I then edit either .htaccess or .conf files to deny access from that IP. I wonder if there is a command or a oneliner that can do ...
0
votes
1answer
29 views

What things should be kept in mind while assigning static IP addresses to Virtual Machines

I always face problems pinging the base machine whenever I assign statics IPs to VMs. I also don't understand what gateway IP should I give,to connect to the internet or just to be able ping the Base ...
0
votes
0answers
85 views

Packet loss when turning off net.ipv4.conf.all.accept_redirects

I applied this rule: /sbin/sysctl -w net.ipv4.conf.all.accept_redirects=0 /sbin/sysctl -w net.ipv4.conf.default.accept_redirects=0 and in /etc/sysctl.conf I added these lines ...
5
votes
3answers
56k views

Hostname and IP address mapping in /etc/hosts

In my linux machine, when I run hostname, it shows mongodb, but when I run host mongodb, it shows: mongodb@mongodb:/var/hadoop/hadoop-1.2.1/bin$ host mongodb Host mongodb not found: 2(SERVFAIL) My ...
1
vote
1answer
63 views

Unix Program (not ab) to create local requests to local server with different IP addresses

I made a module for apache and want to test it across thousands of different IP addresses in a short time. Currently, my only option is to integrate the module onto a live server for which I have ...
0
votes
1answer
65 views

Possibility to use app in LAN and via Internet

I use web based (https encapsulated) app in my home network and via Internet. The app has dedicated Linux desktop client (I use Mageia ver4 Linux for laptop). Of course server address I have connected ...
0
votes
3answers
56 views

Can't identify IP addresses

I got several interesting :) e-mails from IP addresses where I can't identify country and owner (internet provider), it's by example 10.180.221.97 10.220.113.130 10.52.135.39 I tried several IP ...
2
votes
3answers
16k views

Changing the IP Address in Solaris 11

I am trying to change the IP address in Solaris, but am failing to do so. The IP address needs to be a fixed number, like 10.0.11.10 I have tried changing the IP address in /etc/hosts which I ...
0
votes
0answers
89 views

How to communicate with modem over Ethernet?

I have an old modem I was considering repurposing. The first step I thought to do was connect my computer with the modem and try to map the open ports. I found that, upon connecting the device, that ...
0
votes
2answers
22k views

Delete Static Routes on Solaris 10

I have the following routes that I wish to delete: 10.250.0.0 10.250.0.37 UG 1 0 I have run the following to delete this with failure. bash-3.2# route delete ...
0
votes
1answer
173 views

Gentoo: how do I get an IP assigned to the network interface?

I'm noob. I'm trying to install Gentoo from the LiveCD (just for fun as well as for getting better understanding what's going on under the Linux's hood) on my notebook. I've faced an issue which is ...
1
vote
2answers
751 views

Tell socat to listen to connections from a single IP address

socat TCP-LISTEN:22,fork TCP:192.168.0.15:5900 How can I tell to socat, that port 22 is only trusted from the remote IP address 8.8.8.8, and it should not accept connections from other IP addresses? ...
1
vote
1answer
53 views

Delay after a MAC change

I am writing a script that will change my ethernet MAC address on a local network. It will work as follows: Initially eth0 will be brought down MAC will be changed using the ifconfig utility eth0 ...
0
votes
0answers
58 views

Script to remove IPs or network ranges from an IP space

As per the tittle, I have a tool that accepts both lists of IPs or network ranges (CIDR format) to perform a task. Unfortunately, it does not support exclusions of IPs or ranges from the IP space ...
-1
votes
1answer
106 views

Interfaces, IPTables, Connections, Local Connection - Confused :/

I configured my iptables today and ran into some questions i could not resolve yet. So it would be nice, if someone could verify or answer the following to clarify: Each interface can be configured ...
5
votes
3answers
4k views

SSH access from inside and outside a LAN using the same terminal command

I have a Raspberry Pi (RPi) and I am making remote connections to it using ssh. I have managed to set up ssh correctly such that I can access the RPi both from a local area network and from the ...
1
vote
0answers
787 views

Hostname resolves to wrong IP address

When I ping the hostname of my phone from a RaspberryPi (with Raspbian installed), it resolves to the wrong IP address: pi@raspberrypi ~ $ ping isimon.fritz.box PING isimon.fritz.box ...
1
vote
1answer
293 views

Solaris 10 IPMP and zones

Is there a way to have an IPMP group Virtual IP only be assigned to a none global zone ? The reason I ask is the need to reduce the number of IP addresses, as we only have so many spare. If I have ...
2
votes
0answers
126 views

Binding nonlocal address on NetBSD

This is not a programming question, but a question about NetBSD. Linux, FreeBSD and OpenBSD have mutually exclusive but similar interfaces to allow binding the local end of a connection to an address ...
0
votes
0answers
38 views

Network problem in Kali via bridge on VM

It's as simple as the title. I've installed Kali Linux and can't get ipv4 using bridge network on VM. Already tried all the popular solutions like changing NetworkManager.conf and restarting it. ...
1
vote
1answer
95 views

What ports will an ssh daemon use outbound?

I am making a bastion ssh server. When I use the following rules in its ip tables, I am able to connect to the server just fine: Inbound Rules Allow traffic on port 22 from my client's IP Block all ...