Questions tagged [ip]

IP or Internet Protocol. Use this tag for questions about IP addresses or configuration, or the protocol as applied to Ubuntu.

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19 views

Can't ping or access specific website

I have tried pinging this website: www.epfl.ch or accessing it in my browser on ubunut but I can't. I know as a fact that the website is running since I can access it from my android phone. Also if I ...
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How to route from an IP in specific range to another IP in different range?

I Need to Route from an IP for example 10.4.4.5 to another IP in Different Range 10.4.6.6. How can I do This in Ubuntu? Thanks
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How to use bash script to detect Virtual IP created by Keepalived is on the current computer?

Hi I'm new to Linux in general and I need helping writing a bash script that detects if the virtual IP created by Keepalived is on the current machine and if it is, then it'll execute an echo "...
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Confused about Linux virtual interfaces

I have some misunderstandings about Linux virtual interfaces. I managed to find which interfaces are virtual and physical : ls -l /sys/class/net/ total 0 lrwxrwxrwx 1 root root 0 Sep 30 2020 bond0 ...
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Bad internet access after defining fix ethernet IP-address

I have assigned a fix IP address to my ethernet connection for some project. Since then, my Wifi is extremely slow and sometimes I can't even access webpages. As I'm not specialist into this, so I ...
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Old static IP address returns after reboot (Ubuntu 20.04)

I have Ubuntu server 20.04 running on my home network as a media server and for storage. I changed ISP's recently (I live in the country and am limited on my ISP choices) and they don't allow me to ...
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How to assign the same static IP to a wired and wireless NIC?

I have a machine (18.04, will be 20.04 at some point) that has a wired NIC as well as a USB card with a wireless one. It is usually connected by cable, but sometimes the cable is disconnected (...
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Can't reach gateway ubuntu 16.04.5

I got virtual machine with Ubuntu 16.04 there was performed command chmod -R 777 /. My task is to recover system and reach the internet. My steps where this: I entered recovery mode and did this Fix ...
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Why can't two interfaces belong to the same subnet?

I have a setup in which I have two hosts (A and B) connected between them. Each host has got a 4-port Network Interface Card (NIC). When I configure all eight interfaces to belong to the same subnet ...
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Is there an equivalent ip command parameter to the ifup “--force” argument?

As ipconfig is depricated, I am looking at the ip command. As ip can up/down interfaces, I am also looking to change ifup etc. But I do not see an ip equivilent to the likes of: ifup --force wlan0 Or ...
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how can I do ip forwarding with one NIC?

I have two computers and each has one NIC . is it possible to forward IP through one NIC? or I need at least 2 NIC in one of my computers? EDITE: I need ip forwarding in my local zone. for example ...
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Need Software to view and record ip camera

I have a Zmodo camera that is no longer supported. The app I have for it is 32 bit from windows Xperia days. I don’t use windows and would like to find an ip camera app that supports h264 format for ...
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IP forwarding but getting ARP requests

I have an issue with ip forwarding. Basically I have two interfaces: eth0 - 192.168.9.2 - Routes to internal network (192.168.20.0) eth1 - 192.168.8.100 - Routes to internet pi@raspberrypi:~ $ ...
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Ubuntu 18 with 2 externals and one internal NIC, I can only acces my server from one external NIC at a time

Internal network : 192.168.10.X External network : 149.58.60.X Here are my interface : eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000 link/ether 00:...
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Command for determining my public IP? (old question)

Command for determining my public IP? According to "Michael K" who answered the question my computer won't know the public Ipv4 address but it somehow knows the public ipv6 address. Why is ...
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Need to set my ubuntu server 18.04

I want to assign my ubuntu server 18.04 set with a static ip 192.168.0.225 could you please tell me what I should put in my 00-installer-config.yaml file. Thank you Does this help? root@unbuntuserver2:...
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UNKNOWN group default qlen 100

when writing -ip add -and I can not find inet numbers. Evefrytime write - 3: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 100 - What I ...
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Setup Weylus using USB tethering

Being behind corporate firewall, I need to make Weylus works via USB Tethering. The README says it's possible but doe not provide step-by-step instruction. How can I have it working via USB Tethering? ...
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Uuntu 20.04 network manager edit Lan settings or make new connection

After adding and removed curl a few times as a result of shitty PIA OpenVPN install, I found I'm no longer able to use the GUI to edit and add connections. Can't enter info, cant update and cant save, ...
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netplan using wrong backends

Background I have a netplan .yaml configuration file in /etc/netplan/. The first few lines are as follows: network: version: 2 renderer: networkd ethernets: # ...and so it continues... When I ...
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Access to a VMware VM Ubuntu server via SSH from the internet with public IP

I'm using Ubuntu Server 20.04.2 which is fully functional inside my home network. The server is a VM inside VMware Workstation Pro and I can access it via SSH using its IP address 192.168.42.135 Now, ...
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Shell script to execute command if a file contain an ip adress

Is there a way to verify a file and confirm existence of an IP address to execute a command upon ip add confirmation within the file? thank you
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Source of IP address

Probably a noob question, but I need some help in trying to determine where an IP address originates from. So I have a Raspberry 4 with Ubuntu 20.10 installed. I've initially configured a static IP ...
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22 views

How to refresh local IP address?

How to refresh my current local IP address as seen on ip a command near inet? The problem is that sometimes I'm connecting a cable from a switch and then the IP changes. It seem to change because ...
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My IP changes after reboot

I have Ubuntu server 20.04 and it got IP from DHCP. The LAN Team define my IP and mac in DHCP to reserve IP for me, but every time after reboot my IP got changed. we can't fix IP manually in our ...
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54 views

How to specify default path in Ubuntu

I've an Ubuntu server with Digital Ocean. Where I can set the default path for the IP address. Actually I can access to http://xxx.xxx.xxx.xxx/phpmyadmin/ but not my websites who's here: /var/www/...
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what is difference between IPs returned from “dig google.com | grep SERVER” and “systemd-resolve --status | grep DNS Servers”?

Both above commands return IP addresses. But I want to know which one returns IP of stub resolver and which one returns IP of default recursive resolver?
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What's the difference between executing ss and sudo ss? [duplicate]

It's better use without sudo in some ocasions?
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KVM add public IP to a virtual machine

I got a new dedicated server and installed KVM on it. I've created a virtual machine but I got some problems managing public IP to that VM. In addition, the Ubuntu 18.0.4 LTS server has installed on ...
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Netplan: routes and different IP , how to configure it?

I spent the whole morning trying to solve this. I have two IP addresses available on the same interface (different gateways), let's say 100.100.100.100 and 200.200.200.200. My YAML is: network: ...
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129 views

IP forwarding does not work

I have 2 Ubuntu systems , both have Ubuntu 20.04, one has server (5.4.0-42-generic) , the other has desktop (5.4.0-58-generic). I can get ip forwarding working on one system which has the server . But ...
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I can't access port externally. What can I do?

(Ubuntu 20.04) I have ufw disabled, and I can't seem to access my game server externally with the public IP and port (1848). I can however, connect locally, just not externally. When I run: netstat -...
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Specifying IP Range on NFS share

I am trying to specify in the exports file that a share can only be accessed by a range of ips, from 192.168.1.1 to 192.168.1.10. Is there a way to do this, or should I just add multiple lines for ...
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How to configure an Ethernet port on Ubuntu

I have one (physical) Ethernet port on my laptop which is running Ubuntu OS. My goal is to configure the Ethernet port to use an IP address falling within 192.168.0.3 to 192.168.0.254. What is the ...
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60 views

a user installed network manager, and it messed up netplan

So a user install network manger with "sudo snap install networkmanager" this killed the netplan config, so he used the console to remove networkmanager again. With sudo snap remove ...
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162 views

Change static ip address in netplan problem

I use ubuntu server 20.04. First i set static ip address in /etc/netplan/00-installer-config.yaml for the enp2s0 interface. Apply the changes good and i use the server for a cuple of weeks. The ip ...
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561 views

Can't install Angry ipscan in ubuntu LTS 20.4

I can't install Angry ipscan in ubuntu.When I tried to install it showed this:Error_Image But I have already installed Oracle Java JDK. Screenshot:Java_image I am not good with nmap or arp-scan & ...
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Neptlan secondary IP addresse Ubuntu 20.04

I have to give my computer two IP addresses one to connect to the internet and one to reach other systems with pre-configuration IP addresses which i can‘t reach with my first IP address (different ...
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761 views

Multipass change ip range

So I have a KVM VM here made with multipass and the IPV4 automatically assigned is not working: computer ip: 192.168.1.71 node ip: 192.168.1.78 |> vm ip: 192.168.122.28 I am trying to connect to ...
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60 views

how to set static ip to pc for tor

I use tor proxy and i set the tunnel port to 192.168.1.2:9050. I also set my router dhcp that give 192.168.1.2 to my pc but my problem is that sometimes I use another router or my phone hotspot and ...
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94 views

Why does the Ubuntu Server installer ask for both a subnet and IP address?

When installing a new Ubuntu server instance, the installer asks for a subnet in CIDR notation and then it asks for an IP address without CIDR notation. Why can't I just specify the IP address in CIDR ...
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717 views

No ethernet connection: “ip configuration was unavailable”

Hello all, I've been having a problem for some time now and without any solution. I've used to use the ethernet connection on my linux Kubuntu 18.04, but since some time ago i can't connect to it. I'...
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254 views

Ubuntu 20.04.1 Losing connection (Ip settings)

I am renting this Virtual private server with Ubuntu. Recently i upgraded from ubuntu 19.04 to 20.04.01. I am running two webpages on this VPS, since i upgraded to 20.04 the server is losing internet ...
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455 views

LXD - Assign public IP to a container

I have several static public IP addresses on my host machine. I want to assign that IP to a certain container, but I cannot really find any updated info about that. I tried to create a new network, ...
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No Ports are created for Ethernet connection

I am sure this is a simple problem, but I couldn't solve it for nearly two weeks. I am trying to use a Lidar (Sick MRS1000) on Ubuntu with ROS. I can already use it on Windows. Very briefly, we need ...
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274 views

Display IP address in panel ubuntu

I need to display my ip address in my ubuntu panel and it's doable when you install giplet, but from what I understand, giplet is no longer supported by GNOME3. Is there another way to display my ip ...
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36 views

VPS ubuntu ip connect and ip local are difference

I use putty to connect to VPS ubuntu, with IP: 23.XX.XX.45. But when I show IP on VPS : "hostname -I " IP: 10.x.x.8 I do not know , Why they are difference. link screen [1]: https://i.stack....
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[Ubuntu 20.04][Hetzner] How do I add an IP to my dedicated machine (Robot)

Good morning everyone, I'm currently working on getting an IP to work on Ubuntu 20.04 (Server), we currently have 2 IP's on the dedicated: Dedicated IP's The second IP is used to connect to the ...
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31 views

Assigning Private IP without dhclient

I am making custom python tkinter wifi application for ubuntu 18.04. I am using dhclient to assign IP once Wpa_supplicant has established connection. Sometimes, dhclient is taking time to assign ...
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netplan doesn't support loopback routes eg: ip route add local default dev lo table 100

I need to route everything with mark 1 to loopback address. With ip rule add fwmark 1 table 100 and ip route add local default dev lo table 100 It works fine. But I want to make it permanent with ...

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