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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Setup multiple IP proxy-server

I am trying to create a simple proxy-server for HTTP(s) traffic(in other words - in order to change IP). So, i've got 6 ips(from ISP) and VPS with ubuntu 18.04 installed. These ips are linked to a ...
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1answer
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How to permanently change the IP address of Ubuntu with CLI only?

I have a ubuntu machine and want to change the IP address, the requirements are as follow:- using only cli to change the IP address, since the HW is not accessible and the script is changing the IP ...
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Still getting address from DHCP when static address is set

I'm trying to set a static IP to my machine. I have edited /etc/network/interfaces file to this: source /etc/network/interfaces.d/* auto lo iface lo inet loopback auto eth0 iface eth0 inet static ...
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UBUNTU VM lost DHCP and IP

Running UBUNTU on vmware workstation over Windows 10 as a host. slyubski@ubuntu:~$ uname -a Linux ubuntu 5.3.0-51-generic #44~18.04.2-Ubuntu SMP Thu Apr 23 14:27:18 UTC 2020 x86_64 x86_64 x86_64 GNU/...
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How to match between ETH controller and ip address?

Ubuntu 16.04 LTS (but I also need this for 18.04 LTS) I have my Ethernet IPs X & Y, and 2 ETH ports. I want to know which is which. What I tried so far is this: ip a to see all ip addresses + ...
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ubuntu-18.4 - multiple IP addresses via NetworkManager are failing

I'm on ubuntu-18.4 and I have 5 static IP's available to me. They are of the following form ... a.b.c.34 a.b.c.35 a.b.c.36 a.b.c.37 a.b.c.38 I have set them up in the NetworkManager applet by ...
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Which one is my ip address in Ubuntu

I am new in ubuntu. Which one of following is my ip address ? This is result of "ifconfig" on terminal This is result of "ip a" on terminal
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1answer
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Cannot ping domainnames, only ip's

i'm running Ubuntu Server 18.04.4 LTS I'm able to ping 1.1.1.1 and 8.8.8.8 etc. but cannot ping domainnames. I tried many things but i can't seem to solve this issue. therefore i'm not able to update ...
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Ubuntu 18.04 is broken once I use a static IP

When I try to change my wired ethernet connection from DHCP to Manaul, with the IP 192.168.100.100 and the Netmask of 24 and a gateway of 192.168.121.1, the connection suddenly stops working. Could ...
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1answer
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How to scan and ip range in nmap

I've been using Angry IP Scanner and with that, I easily could scan an IP range by putting starting IP and ending IP in two text boxes. Now in nmap, I want to know how to scan an IP range with giving ...
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When i type ifconfig, why my IP Address not showing?

There is an Ubuntu server 18.04 LTS, when i done setting IP Address and all process finish, then i check IP Address $ifconfig, but its not showing. But, only like this, lo: flags=73<UP, LOOPBACK,...
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Will an unconfigured ethernet port in Ubuntu 16.04 become link-local if connected to link-local device?

If I plug a link-local IP-camera into an unconfigured ethernet port on Ubuntu 16.04, will that port detect the link-local device and configure itself as link-local - ie. 169.254.0.0/16? (I ask ...
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browse network shows failed to open/on

I am using ubuntu in my smartphone.In that I am not able to open browse network.there is no ip address is showing in my ubuntu.
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2answers
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IP command using to 100% CPU on wakeup

On laptop wakeup I see a process called ip that uses 100% CPU. It won't stop on its own, I need to manually kill it every time. By looking for it in ps I could find that the command being run is ip ...
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1answer
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Use Private and Public IPs to ssh outside the LAN?

I am trying to SSH outside the LAN. Someone told me I have to use the Public IP because the Private IP won't allow you to access the device except if you are in the LAN. Suppose I want to access a ...
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Private IP vs Public IP [closed]

I discovered recently that there is two types of ip, i.e. the Public IP and the Private IP. I know that the Public IP is the one the external world can see and the Private IP is local to our network. ...
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IP Failover / Ip Alias for SA:MP

I host my own SA:MP Server and Teamspeak3 server , web server etc. I have 16 IP addresses on my OVH-Game dedicated server and I configured IP Aliasing. Teamspeak3 runs on all 16 IP addresses, web ...
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Public ip address for ubuntu 18.04 [closed]

How can assign public address (using ACT network) in ubuntu 18.04.2 Network: Home ACT network OS: ubuntu 18.04.2
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How to allow external connection to a socket on my server (i.e., let it through from outside)?

I use ubuntu from site (onworks.net) its running on vm.My question is how i can let external connection to my php server socket?What ip i can use for host?I only have ipv4 and ipv6 address looks like ...
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Make a static IP permanent 18.04.4 LTS bionic [duplicate]

I can set the static IP with ifconfig eth0 10.0.0.1 but reboot I have to do it again. There is no /etc/netplan or /etc/network/interfaces so where or how to set the IP permanent? the command ip is so ...
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1answer
39 views

18.04: Different IP addresses found with IP lookup command line

I am doing the following from Ubuntu 18.04 LTS: ifconfig eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.17.208.65 netmask 255.255.255.240 broadcast 172.17.208.79 ...
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How to configure AP forwarding

I have a device DEV1 which should communicate with device DEV3, however in the middle there is DEV2. My understanding is that I need to use IP Forwarding in DEV2 and edit route tables on DEV1 and ...
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Incorrect IP resolution for host in local network

Summary: I have two computers in my local network: wanat-laptop and gwnt. Both of them running ubuntu 18.04 LTS. When I connect them to network and trying to ping each other: I can do it once from ...
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1answer
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Is there a way to show external IP in top bar using GNOME 3.28.2 in Ubuntu 18.04

Using some answers I found here: Add a custom text to GNOME panel I have tried making my own applet but I have not succeeded. Does someone know of an application that works in Ubuntu 18.04? There ...
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Setup Public IP on Ubuntu 18.04 (on VM Player)

I have Ubuntu 18.04 Server guest, on Win10 Pro Host, on VM Player 15.5, I am in my home network. Need to setup public IP, went thru several threads etc - tried this: How to configure static IP address ...
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18.04 Total Loss of Connectivity (Wifi&Eth) after Update

I left my Ubuntu 18.04 to download the new packages from software updater. When I got back I had no more internet connectivity. If I try ping google.com I get ping: sendmsg: Operation not permitted ...
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2answers
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can a ftp domain be changed from using ip to domain name like domain.com?

so I have set a ftp on Ubuntu server using VMbox and I can access it from host(windows) browser by ftp://ip but can I using domain name like ftp://domain.com? and how to do it? my version Ubuntu ...
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how to access dns server from ubuntu server on VM from browser on windows

i have set a DNS server on Ubuntu server VM with domain www.prakjarkom.net. the DNS server can be accessed on Ubuntu's browser and what should i do so i can access it with browser on windows. Network ...
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Setting DNS server in Ubuntu Server using Ip domain from different Ubuntu Server

I am using Virtualbox to run 2 Ubuntu 18.04 servers; let's call them A and B. On OS B, I need to set a DNS server using the IP from OS A. I have already set a DNS server on OS B using IP from OS B ...
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OVH Failover IP on Ubuntu 19

OVH Failover IP I have one one failover IP from OVH and i am trying to assign the ip to Ubuntu 19 vm I am using vmware Esxi i did all correct configuration but when i try to ping 8.8.8.8 its say "...
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2answers
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Making ip commands persistent

I want to use the ip-command to change my network config occasionally. How can I make these commands persist across boots? I am using Kubuntu 19.10... Thanks for your help
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DNS resolving does not work on customized LiveCD (only IPs can be reached, not URLs)

I followed this tutorial on how to create a customized LiveCD and tested the result in a VM as well as by booting the physical machine with it. When using the LiveCD on a physical machine, I found ...
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Is there a way to find the ip I am connecting to a server from?

When I connect to a server I want to run some shell scripts to whitelist ip's that successfully connect over ssh. They need the inbound IP address of the ssh connection, not the server's IP. Is there ...
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147 views

“mnt’s server IP address could not be found”

Good Day! I am an Bootcamp Student and I have setup my Windows PC with Ubuntu. The problem I get is when I download the open in browser extension in VS code and attempt to open a file in browser. T ...
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55 views

Script injected some iptable v4 rules into /etc/iptables/rules.v4 - What does it do?

I downloaded a script from some website and installed it, but it also added a few iptable files to /etc/iptables/rules.v4 I'm not sure what these rules are doing and I doubt its malicious, but what ...
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1answer
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ip route add — Error: either “to” is duplicate, or “10.0.0.1” is a garbage

19.04 The system boots without a default route. Then when I try to add a default route, there is this error. The error occurs even when I completely clear the routing table. The ip address is ...
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How to make so when i type ip it redirects to domain name?

Ubuntu 16 on KVM VPS. (Apache2 + Nginx as front) PHP 7.3 When I enter my dedicated IP and domain, both show Apache2 Ubuntu Default Page /var/www/html/index.html How to make so when i type ip it ...
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307 views

Persistent Static Route to Single Host

How do I setup up the following single host IP 10.104.52.x as a persistent static route on Ubuntu Sever 16.04? I am using the /etc/network/interfaces file. When I add at the command line ip route ...
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87 views

How to automatically block IPs that send too many HTTP requests?

I run a website that regularly gets hit by too many HTTP requests coming from the same IP. Is there a simple way of automatically reject connections for IPs that send more than 2 requests per second? ...
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2answers
32 views

Different kind of IPs

I'm trying to do port forwarding so that I could connect from AWS EC2 to my local ubuntu machine. My local machine ubuntu is connected to wifi(Router). So while trying to accomplish, came across so ...
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1answer
55 views

Ubuntu(16.04) - virtual Host problem

I used ubuntu 16.04. I configure virtual host in my system and also working properly on local host- using hostname(turboreceiver) and using ip (192.168.0.56). when I try this in my other pc in same ...
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1answer
110 views

restart needed for changing static IP to be applied

sometimes on Ubuntu, I need to restart the system in order to static IP that I have set to be applied. I mean it should be changed once I have selected the network interface and bring it down and ...
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1answer
3k views

Redirect an external IP to localhost?

Is it possible to redirect all calls to an external IP on internet, to localhost (without use of hosts)? I have an old application and I don't have the source code and this application try to connect ...
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1answer
174 views

Problem in setting an IP address on Ubuntu 18.04.2 LTS

I'm trying to set an IP address on Ubuntu 18.04.2 LTS, Settings>Network. I expect that, after clicking "apply", under the lines highlighted in the terminal the result of my operation will appear but ...
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ubuntu iftop ip question

When I use the iftop, I find 3 ips that have a high download and upload rate(around 100mbps both), these lower my internet performance. Anyone know how to block these ips keep d/l and u/l? And is ...
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25 views

Website does not respond hosted on aws ubuntu 18 with VestaCP

A week ago I installed Ubuntu 18 on AWS and at the same time VestaCP I have followed all the steps of some forums both here and the vestacp forums but nothing, the website does not respond, does not ...
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1answer
1k views

Can't get IP via DHCP in 19.04, but able to get if I use Windows

I have a dual boot system (quite old machine) with Windows 10 and Ubuntu 19.04. After registering my MAC address with the network admin, I can get an IP via DHCP if I log in to Windows, and I can ...
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50 views

Can a firewall filter ip addresses?

The Linux firewall can filter ports but can it also block ip addresses from securing a connection?
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Getting Ip error while updating packages in terminal [duplicate]

getting 404 Not Found [IP: 91.189.95.83 80] How can I solve it?enter image description here
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1answer
100 views

Unable to connect to computer from outside LAN

I opened two terminal windows, and typed nc -vv -lp 9999 in the first one andnc -vv $(dig +short myip.opendns.com @resolver1.opendns.com) 9999 in the second. However, the two netcats didn't connect, ...

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