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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4
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263 views

LXC bridging with two NICs

I am setting up a server to host a number of LXC containers, for now just isolating web and db services. The server I am using has two NICs and I'd like to use one for host traffic and one for ...
2
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0answers
352 views

Macvlan interfaces beyond first interface fail to connect.

I've been working on a project to build a set of macvlans on ubuntu. The process I'm using comes from here. In short, I run this set of commands to build and initialize an interface: ip link add link ...
2
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0answers
156 views

found someone lurking in my LAN, not sure what to do next

I have DD WRT router with internal numbers all falling within 192.168.1.0/24. I was looking on my firewall records this morning and found someone at 10.10.109.100 got blocked from accessing port 5353 ...
2
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0answers
2k views

Postfix cannot resolve local IPs from Name Server

I currently have a server running "Ubuntu Server 12.04.1 LTS" installed with Postfix Bind 9 (Slave) The postfix cannot seem to resolve my internal IPs to Name Server (PTR) entry I have within ...
1
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0answers
39 views

Access to a service hosted on multiple AP with the same IP/domain

I have a pretty strange problem to solve here. I need to connect to three Access Points at the same time from a single machine with a single WiFi adapter. As you can see here I've done it with a very ...
1
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0answers
36 views

Resolve domain names to IP's based on physical adapter

System Configuration eth0 NIC to the LAN/WAN/Internet (working, don't want to mess with it) eth1 NIC eth2 NIC Objectives Assign a static IP to eth1 and eth2 and assign IPs (DHCP) on separate ...
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0answers
29 views

Using Multiple IPs for the same interface for different application?

I want to do some IP aliasing, but I want my browser to use a different IP from the IP for BitTorrent. For example: I want the browser to use this IP for example 192.168.1.45 and BitTorrent to use ...
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0answers
411 views

Why can't I connect to my localhost port from a remote computer?

I'm using link-grammar server to convert sentences into semantic graphs. It provides an API though a port to do the above process. It's configured to works through port 9000 of localhost. I used to ...
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0answers
319 views

Vpn connection not use default gateway

Can I configure a VPN connection, such that after the VPN connect I can still use internet on local machine? On Windows I can resolve this by unchecking the following box in ip config:
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0answers
58 views

Is it possible to access an Ubuntu server on multiple networks?

I hope someone can help. I have Ubuntu Server 14.04 LTS running in VirtualBox, running as a web server on my laptop. I take my laptop between home and work, so the network configurations are different....
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0answers
406 views

Issue restarting after changing /etc/network/interfaces to a static IP Ubuntu 12.04.3 LTS

I've been trying to set up a static IP address on my new Ubuntu build (12.04.3 LTS). I changed the following lines in my /etc/network/interfaces file from: auto eth0 iface eth0 inet dhcp to: auto ...
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0answers
543 views

Permenant Route Addition

I'm trying to add a route permanently to my VPS, at the moment I have to run the command manually every time I find out the server has rebooted. I read somewhere I had to add something to /etc/network/...
1
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0answers
1k views

Ubuntu: How to listen to music streams on the web without Flash (by finding the IP address of the streaming server?)

How can I find the ip address of a music streaming service in Ubuntu? Specifically: How can I do this for: 106KMEL : http://www.iheart.com/live/293/?autoplay=true Hot97 : http://www.hot97.com/...
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0answers
695 views

Firestarter, Proxy and limited number of IP addresses to access

On my local network I have to setup Linux Ubuntu boxes, so users will be able to access only to few (2-3) domains. Also, all of those Linux Ubuntu boxes are behind Proxy. Tried to configure this ...
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0answers
357 views

Can not connect to 802.1x no IPv4 is set although DHCP

Can anybody please help me to setup my internet. I made a fresh install of Ubuntu 12.04 LTS. Before the installation I was able to connect to the internet with the notebook. I have to use 802.1x to ...
0
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0answers
22 views

open port for ip from outside local network

I am very new to the world of ubuntu so I hope my explanation of the issue comes across correctly... I am trying to connect to my Cassandra instance from outside the network of my ubuntu instance. ...
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0answers
12 views

Ping request returns DUP! error with 8.8.8.8 server

If my information is correct, DUP! error, happenes when there is an IP conflict or simply when two devices respond together to ping request. But here the Google Public DNS itself returns DUP! ...
0
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0answers
26 views

IP connections times out after “Internet usage”

let's start with the typicall: My computer is behaving weird :-( I have been looking for the source of the re-occuring error for weeks, hopefully you guys can help me figure it out :-) What is the ...
0
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0answers
15 views

How to find IP addresses of devices connected to a bridge?

I have created a bridge name called 'mybridge'. I have added some devices to mybridge. Now how to get IP addresses of the devices connected to this mybridge?
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21 views

Use endpoint instead of IP in iptables

I am using AWS ElastiCache and I am trying to configure it so that I can access it outside of AWS. Long story short, I have to execute the following command on an Ubuntu instance (AWS NAT instance), ...
0
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0answers
37 views

How do I connect to my dns server (via gui)?

I'm on lubuntu 16.04 LTS, and want to connect using both ipv4 and ipv6. I'm a linux noob and don't understand the answer given here I prefer to change settings via gui, if thats possible. edit: ...
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0answers
12 views

How to achieve resolving of the same hostname to different IP addresses based on location

I have personal webserver with ownCloud installed. This webserver has no public IP address because my internet connection does not offer it. I ordered virtual linux webserver with a public IP address ...
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0answers
9 views

Alcatel SIP on ubuntu

I want to know if is possible to connect to an alcatel IPX I know that the IPX server that I'm trying to connect use a codec that only the alcatel softphone and phisical phones has...
0
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0answers
31 views

iface order and influence of empty line

case: # eth0.cfg The primary network interface auto eth0 iface eth0 inet static address IP-1 netmask 255.255.255.255 broadcast IP-1 post-up ip addr add 192.168.100.254/24 dev ...
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0answers
13 views

How to route external traffic via mobile-phone usb modem and use ethernet for internal traffic?

Suppose my internal traffic all goes through some ip like 10.0.0.1 for example. I want to tether internet connection from my mobile phone to my desktop while still have the access to internal network.
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21 views

How can I have the same IP address for Django and WordPress application?

I am currently developing a Python/Django based application on Ubuntu. It is hosted on a dedicated server in a docker. Let's say the IP for this application is www.myapp.com. I also have 10 landing ...
0
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0answers
110 views

How can i add additional ip on ubuntu?

I have some problem with adding additional IP on Ubuntu. My interfaces file: auto lo iface lo inet loopback auto ens160 iface ens160 inet static address 10.201.120.213 netmask 255....
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0answers
8 views

nm.d already present while launching multiple lxc application containers. Not able to launch more than 1 container

I want to launch lxc application containers on ubuntu. Am able to launch one container with an application. As am trying to launch second container with same application its giving nm.d daemon already ...
0
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0answers
74 views

Edit wired connections: IPv4 settings: Manual: Routes button

There is a "Routes" button in my Ubuntu 12.04LTS here: Edit Connections>Wired>Edit>Ipv4 Settings>Manual>Routes button Inside the Routes button I can add IP address, Netmask, Gateway, etc. I wonder ...
0
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0answers
23 views

What is the best way to handle multiple ips safely on a single Ubuntu server?

Previously, I used to add virtual interfaces when I needed to to have multiple ips on a machine. Now, I need to a sign 29 ips to a single machine and virtual interfaces just doesn't seem like such a ...
0
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0answers
136 views

How can it bind port with ip address not 0.0.0.0?

I'm new to ubuntu also in networking so if you need more details i can provide you with it I binded port number 7700 , I got error in binding it like error in binding 0.0.0.0/0.0.0.0:7700 I read ...
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0answers
29 views

LTSP/xRDP foreign IP address

Is it possible to get the foreign IP address of a user when they connect to the server via LTSP/xRDP - the client IP address? When they are connecting from home their home IP address. Thanks for ...
0
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0answers
26 views

ip rule problem

i have a weird problem with policy based routing in rule 0, there is some lines appearing and disappearing constantly. below, the output of the command (ip rule list | grep "0:") executed several time ...
0
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0answers
31 views

How to prevent IP stealing when starting up an interface?

This behavior is found on our Ubuntu virtual machines. Basically, when we boot a snapshot of another VM, the new VM automatically steals the IP of its original. We then modify the IP through cloud-...
0
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0answers
132 views

How I assign a new internal IP address to my eth0 adapter on Ubuntu Desktop 14.04 LTS?

Sorry if my english is not soo good. I hope someone can help. I installed and configured an Ubuntu Desktop 14.04 LTS system. I configured a home network, manually, assigning static IP to the GUI ...
0
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0answers
25 views

My Server IP is redirecting to /mail

Recently, I installed iRedMail and Round cube on my server. As it was using 90% of my RAM, I just backup "www" folder and re-installed the operating system. After that, I again backed up my www ...
0
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0answers
35 views

Web server & ICMP question

Im am very new here in askubuntu.com and pretty new to ubuntu server system. at our church we have a ubuntu control server which is in charge of internal network(DHCP) and all that related. the ...
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0answers
72 views

Cannot connect to printer — reports ip of 0.0.0.0

I have just started with Ubuntu. After a successful installation, I attempted to configure a Brother HL2170W for use, that was already installed on a local Windows 7 machine. The printer is wired to ...
0
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0answers
41 views

I can't reach outside ubuntu(VM) from ip netns

Ubuntu 14.04 VM is on oracle VM BOX on windows Host. I have two netns ns1 and ns2 . I have established connectivity between ns1, ns2 and global name space using a Openvswitch. Now that i am able to ...
0
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0answers
145 views

Why is my computer trying to connect to 127.0.0.1 port 9150?

I am trying to download GIMP and my computer won't connect download because it cannot establish a connection with 127.0.0.1 9150. But why is it trying to connect to the Tor IP and port. How do I ...
0
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0answers
804 views

How to fix the error: “An inet prefix is expected rather than [path spec]”

I have run into a Catch 22. After a sector fault had corrupted my / partition (and possibly /boot as well) by "removing empty inodes" (which in fact meant that an uncountable number of files got ...
0
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0answers
25 views

Ubuntu Server Not Booting After Changing DHCP Settings

I'm currently running an Ubuntu Server with 14.04LTS at home. I've recently had issues with the network and wanted to set the server to a static IP address internally. To do this I followed the guide ...
0
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0answers
59 views

vidalia and tor works but doesn't hide my Ip?

i have recently installed vidalia from the software center and hopefully it works well and was connected to the tor network but when i google about my IP it stays the same .so how can i point tor to ...
0
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0answers
47 views

Cannot connect to ethernet

I have a dual boot laptop. In Windows I can connect to ethernet without a problem but in Ubuntu Trusty it cannot get an IP address. Doesn't seem to be the network's fault because I've had this problem ...
0
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0answers
95 views

Change virtual box ip from 10.2.x.x to 192.168.x.x

I have applications and xampp setup on virtual box with ubuntu 12. The ip address for virtual machine 192.168.x.x but after installing vmware ,ip change for virtual box to 10.2.x.x I want to change ...
0
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0answers
63 views

usb0 networking route randomly disappearing on 14.04 PC, connected to Beaglebone w/ Ubuntu-armhf

Let me rephrase that: seemingly randomly. So I have a PC and a Beaglebone Black. The PC is running Ubuntu 14.04 and the Beaglebone Ubuntu-armhf. With the help of the following (well structured, I ...
0
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0answers
41 views

Using an IPv4 address for each user on a VPS

After extensive googling has returned basically no help I'm looking to you guys for help. What sort of configuration do I need to change on my VPS to make it so that each user on it does networking ...
0
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0answers
29 views

additional address ip

When I would like to type the command-line sudo ifdown eth0:0, I get this result : ifdown: interface eth0:0 not configured knowing that I added eth0:0 in /etc/network/interfaces : auto eth0:0 iface ...
0
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0answers
74 views

Ubuntu server running on VirtualBox the inet addr changes

I have been running a virtual environment for my Ubuntu server and today the inet address changed. It was 192.168.1.101 and now it changed by itself to 192.168.1.32. Example: inet addr: 192.168.1.32 ...
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0answers
2k views

Second NIC on dual homed server not working

I'm trying to set up a server with two IP addresses on different connections. The first NIC works fine (since I removed the gateway from the second), but I can't ping out or to the second NIC. ...