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Questions tagged [ip-address]

An IP address is a numerical address given to any device connected to a network.

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refuse access to apache via ip address or redirect to the url

I have two virtual host on apache. access works on url-1 and url-2 by https (http is redirected to https) but access by ip address of the machine works too. I want to refuse access via ip ...
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14 views

Lamp (Xampp) server return 503 error

Hi I want to access to my Xampp folders via public IP address. If I try to access my website in my network by type localhost or 127.0.0.1 or event my public IP address everything is OK but when I try ...
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1answer
859 views

traceroute is not installing on ubuntu 18.04 LTS

I tried to use traceroute for my networking project. But whenever I tried to install traceroute it shows that Reading package lists... Done Building dependency tree Reading state ...
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1answer
70 views

Ubuntu Server 16.04 ismissing enp3s0 section in ifconfig

This morning our server encountered an error. The IP Add was changed to dhcp, and I tried to set it as a static IP, the one we reserved for the server to be accessible by the local network. After ...
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23 views

How can I configure client Openvpn to inherit the same ip address of the server [duplicate]

I have an Openvpn ubuntu client that has certain public IP address x.x.x.x that changes dynamically based on the ISP provider. Additionally, I have an Openvpn server that has a static public IP ...
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72 views

Connect Linux Ubuntu to network via Ethernet

I have a laptop with Linux Ubuntu 16.04 on it and I would like to have an Ethernet connection in order to access Internet. The problem is - in 95% of tries to connect via Ethernet, laptop takes VERY ...
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17 views

What should you keep in mind when manually adding connection using IP address and Gateway using nmcli

I am newbie at Linux, so I am learning to make a manual connection without using DHCP using my Ethernet so that it connects to internet. After creating a new connection and activating it, I can't ping ...
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70 views

no IP address for certain MAC

Please assist- I have a wifi radio that will not obtain an IP via DHCP. Basically, a DISCOVER packet is sent to the DHCP server, the DHCP server receives the packet, then responds with an OFFER but ...
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51 views

Port forwarding between three PC's

Architecture: configuration: PC 1 eth0(a) - 172.xxx.xx.xxx PC 2 br0(b) - 172.xxx.xx.xx PC 2 br1(e) - 192.xxx.xx.xx PC 2 container eth0(c) - 172.xxx.xx.xx PC 2 container eth1(d) - 192.xxx.xx....
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3answers
2k views

What is the most authoritative file/process for managing IP addresses on an 18.04 server?

The 18.04 server installation process creates /etc/cloud/cloud.cfg.d/50-curtin-networking.cfg, which, in turn, seems to generate /etc/netplan/50-cloud-init.yaml. I can't seem to find exactly how 50-...
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1answer
96 views

Cannot WOL dual-booted PC - Firewall?

I cannot figure this out; I swear I am doing everything correctly: In BIOS: Wake from Onboard LAN -> Enabled In windows: I have enabled every capable NIC to Wake on LAN (Magic Packet) I have ...
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1answer
48 views

List all wifi devices on VPN network

I have an OpenVPN server on my Rasberry Pi that I have working successfully. Granted, I don't know a whole lot about networking, but, when I connect, I expect to see all devices (ethernet or wifi) ...
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2answers
2k views

Ubuntu Core wifi configuration issue

My static IP address settings are being wiped out each time I reboot my Raspberry Pi. I just installed Ubuntu Core on a Raspberry Pi 3 but I have struggled to establish a wifi static IP address. The ...
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1answer
2k views

Defining Static IP addresses for Multiple NIC adapters

Just would like to understand how you define static IP addresses for Ubuntu 17.10 server with multiple NIC adapters (i.e.eth0 and eth1) using the /etc/netplan directory. (basically a continuance from ...
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1answer
4k views

ifup returns an unknown interface error

I'm still learning Linux and I'm less familiar with Ubuntu. I have a Ubuntu image that I'm using in VirtualBox on a windows machine. It was able to connect and get an IP address up until about a week ...
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0answers
232 views

Ubuntu 16.04 Multiple Network Adapters, Same Network

I need to configure a gateway PC working with Ubuntu 16.04 so that multiple LAN adapters (eth0,eht1,wlan0) communicate within one same network addressing scheme. How can such a configuration be made ...
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1answer
899 views

inet addr missing after ifconfig

I am making a cloud server and am following this video tutorial. Everything went FUBAR when I used the ifconfig command in the terminal and did not receive the IP of my server. I have also tried ...
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1answer
125 views

Could I use port 8080 - 8100 (if they aren't in use)? Are open ports fair game?

I am building a reverse traffic server. I have an external static ip address for a server that hosts multiple VM's what I am wanting to do is call that ip address (or domain name) and add a port to ...
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3answers
21k views

How to find the IP address for a device on a network

I am trying to get an IP camera connected to my Ubuntu Linux (16.04) machine. At work I am responsible for a camera network of more than 60 cameras, however there I use some window tools to determine ...
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94 views

How can I add an IP adress to a network interface on Ubuntu Server?

I'm currently using Ubuntu Server 16.04.2 in Virtualbox and I'm trying to set up a web server. It seems like my server or rather the network interface "enp0s3" doesn't have an IP address or an "inet ...
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2answers
390 views

2 computers with the same mac address, router won't assign a different ip address after I spoof the mac

ok linux jedis...this one is killing me . I am running ubuntu server 16.04 i have 2 nic adapters with the same mac address. they keep getting assigned the same ip address by my router which is ...
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1answer
704 views

Stop IP-address from changing after reboot [closed]

My internal IP-address (hostname -I) changes every time I reboot the unit. How can I prevent this?
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0answers
662 views

Ping LAN computer with hostname

I have setup my LAN and there are a couple of computers connected through a router. Every computer gets their IP address automatically by DHCP running in the router. Each computer has their own unique ...
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0answers
38 views

can i assign 1 static and 1 private ip addresses to 1 NIC (VM)

i need to assign 2 ip adresses to one interface, one private and one without ip (promiscuous mode) with access to internet, can i do that ? thank you,
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1answer
117 views

I need to assign specific static IP in ubuntu server

i have one ADSL Router and static IP for ISP's public ip..i need to set this public ip in ubuntu server and i can access out site world of this server. Please guide me am new to ubuntu server
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1answer
1k views

RFC7217 (stable privacy addresses) implementation in Ubuntu 16.10

I'm the author of IETF RFC7217, and I'm trying to figure out whether Ubuntu 16.10 implement support for RFC7217. It seems that there is no support in the version of NetworkManager Ubuntu is using, or ...
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2answers
121 views

Can I assign any IPv4 address I want to a network interface in Ubuntu?

Title basically reveals what I want to learn. Theoretically, I can assign an IPv4 address via ifconfig <interfaceName> <IP address>, for example ifconfig myInterface 172.16.25.125. However,...
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0answers
151 views

How to assign two different interface name on the same NIC card (Hardware MAC address)

I am using a Ubuntu Linux system. For my task I have to run some modules by executing the respective scripts. All the modules must run at the same time in the background but all have different ...
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0answers
70 views

I've rented a subnet and assigned the IPs to my server. Why aren't they working?

like I said I've rented a subnet and I've set them up with a host on an Ubuntu 14.04 server. I was told I need to change the interfaces file to get the new IP addresses to work, I have tried this and ...
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0answers
693 views

Scan IP addresses on a wired network

My computer is connected to two wired networks and a wireless network, as you can see in the network settings: The currently selected network is actually a Raspberry Pi Zero connected via a USB cable....
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1answer
1k views

IP address for updates

Our security groups are pretty locked down by IP address. I've been asked to try to find the IP address that any updates would come from so we can create a security group for it. I can't seem to find ...
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0answers
148 views

Error: java.io.IOException: Communications link failure

I am doing a small project to achieve auto-completion on ubuntu. I run the code in Docker with hadoop. I also use Ampps downloaded from http://ampps.com/download. But I have a problem that I can't ...
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2answers
54 views

What do I share when I connect to a public wireless network

Is there a list of data/infos Ubuntu (or other Linux distributions) share when connecting to a (public) wireless network? Such as mac address, hostname, ...
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1answer
47 views

Windows connects, Ubuntu doesn't

I'm trying to connect to a school network that uses MAC filtering (and other restrictions?). I've been given an IP address specific to this machine, and it connects without problem in Windows 10. ...
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1answer
296 views

SSH myself using public IP address does not always work

I am running Lubuntu 14.04 and have set up an SSH server. It has taken me ages to troubleshoot because of a confusing fact. At home I can SSH my laptop from itself using either my local IP address (...
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1answer
2k views

apt-get — Specify source IP address

Is it possible to specify the client's IP address (i.e. the source network interface, like eth0, eth0:0, eth0:1...) to which apt-get should bind when it has to connect to the network (for instance ...
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0answers
137 views

grub error after deleting Elementary OS from a triple booted laptop [duplicate]

Recently I installed Elementary OS on my laptop alongside Ubuntu 14.04 and Windows 8.1. After Using it I decided to remove it. So From my Ubuntu I deleted all partitions related to Elementary OS . ...
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1answer
520 views

How to change mac address of my WiFi device? [duplicate]

I wanted to connect to WiFi Networks With a fake Mac address. In Windows, I changed Network address in Network devices. Is there any good way of doing this?
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1answer
1k views

Ubuntu Server IP Static error to restart with ifdown and RTNETLINK: file exists

I gave static IP on ubuntu server, by adding the IP configuration in /etc/network/interfaces the contents is auto lo iface lo inet loopback # Static IP to eth0 auto eth0 iface eth0 inet ...
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1answer
1k views

local network: how to change broadcast address (with GUI)

Is there a way, to change the broadcast address for network config via GUI? if I set my network config to "auto", connection establishes with following information for IPv4: IP-Address: 192.168.0.5 ...
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3answers
16k views

How can I get IP address showing from using Conky

I'm just wondering how can I get IP address showing on the desktop from using Conky? Do I need to use conky (sudo apt-get install conky-all) or not? As I haven't done it before. I'm thinking ...
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1answer
353 views

How can cilents get ip addresses during booting time via dhcp server

I have installed a dhcp server and it is working fine. When I open the terminal on the clients side, they have got the address. The problem is that when I booted the client machines they didn't get ...
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1answer
120 views

Cannot resolve any hosts, do not have IP address (static assignment not working ??)

I'm using Ubuntu 14.04.2. I have read and tried lots, but there is obviously something wrong in my config somewhere. It looks like I have an error in my network config, can someone please help me, ...
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3answers
3k views

How to fix my local ip address [duplicate]

I want my private IP address 192.168.xxx.xxx to be fixed and do not change, Is it possible? I am using Ubuntu 14.04. I need it to work even when I change the network? Thank's
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3answers
613 views

Which process is accessing which IPs?

After installing Conky and listing all my inbound and outbound connections I start to wonder what's actually happening and what and why things are happening. I'm getting a bit suspicious. How can I ...
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1answer
420 views

Internet sharing with static mac-addr to IP mapping

I can create a network between my ubuntu 14.04 and another machine by connecting ethernet cable between my ubuntu machine and second machine, and then setting "IPv4" to "share to other computers". ...
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4answers
173 views

Scripting Help to filter out an IP-address

I have a large text file that i want to extract lines of data from, i want to extract every line that contains an IP address that i can specify (z.z.z.z) 2015-02-26 00:00:00 Local3.Info x.x.x.x Feb ...
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1answer
87k views

How do I add an additional IP address to an interface in Ubuntu 14

I want to have the wired interface simultaneously obtain a DHCP address, and also alias a fixed address so I can communicate with a device with a fixed IP address on a different subnet over the same ...
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2answers
152 views

Network Issues ubuntu server

I have a question in regards to network connectivity. I have a mac mini that is running ubuntu server 14.04 and I'm have difficulty not only using apt-get to update and download but for some reason ...
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1answer
1k views

How to block an ip address after several wrong login attempts

I have an web application which needs the user to login. On the server there is an php page who does this (it will check the user input against a mysql table). If an user tries to login with a wrong ...