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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17
votes
1answer
3k views

Public IP Address for LXC container

Ok, so I want to know how to do networking on LXC containers. Not just the sort of vague information you get from the other websites, but a true beginner's guide to making them work.. Since most ...
9
votes
6answers
3k views

How to control an Ubuntu PC from another Ubuntu PC over Internet, using mobile broadband connections?

There are two Ubuntu PCs called A and B. A and B are connected to the Internet using two separated Internet connections. (In my case, two mobile broadband connections ppp0 x2 ) Each connection has a ...
5
votes
3answers
2k views

How can I hide or show a different IP to a website?

I'd like to watch BBC Iplayer...but it only works in the UK. I am currently living in Spain. Is there a way to hide my ID and make the bbc website believe that I have a UK IP or something?
4
votes
2answers
6k views

I need to reset my computer's ip address to dhcp from static

I have been running a file server on Ubuntu for a couple of years now. Recently I had to take the network down. When I brought it back up, my server lost its ip address from the router. I can't ...
4
votes
2answers
203 views

How can I find the IP of a NAS connected via SMB?

The question says it all. I have a NAS which was working quite well for quite some time. For some or other reason I started using smb instead of ftp. Now I can no longer access the configuration ...
4
votes
1answer
847 views

IP Messenger Error on Ubuntu 12.04

I installed IP Messenger (GNOME 2) from Ubuntu software center but its not working. It's always showing an error message on Ubuntu 12.04. FileName:ipmsg.c Function:create_lock_file Line:157 Can not ...
3
votes
2answers
2k views

'ip rule flush' breaks all connectivity

I'm configuring some network stuff, and every time I try something the connection breaks. Thinking that I must be configuring something incorrectly to break all connections, I did a bit of ...
3
votes
1answer
4k views

How to set a static IP address?

apt-get fail to resolve the mirror. I am using my server as a backup server to one of my website servers. So I had to initially set a static IP address... How can I do it?
3
votes
1answer
99 views

What IP address does Ubuntu assign itself when it cannot reach a DHCP server?

When Windows is attached to a network but cannot reach a DHCP server, it defaults to an IP address of the form 169.254.XXX.XXX. Does Ubuntu do something similiar?
3
votes
3answers
3k views

Issue with setting up multiple IP addresses on ubuntu server installation

I want to setup two ip addresses on my system for access through lan. This is my config on my other system. Desktop Installation My desktop installation runs with multiple IP's added through ...
3
votes
1answer
5k views

Redirect requests mapped to a DNS IP Address

For this command lines: sysctl net.ipv4.ip_forward=1 iptables -t nat -A PREROUTING -p tcp --dport port -j DNAT --to-destination ip:port iptables -t nat -A POSTROUTING -j MASQUERADE I can reroute ...
2
votes
2answers
437 views

Floating IP Address

What does 29 means in this floating ip range 192.168.1.0/29? I know it will give 6 usable floating ip but how can i know the what number other than 29 can I use to give me more range for my floating ...
2
votes
1answer
44 views

What are the possible threats if internal IP address is publicly revealed?

In many cases, people do not take enough care to remove their IP addresses from some output before posting it to help forums and Q&A sites like askubuntu. Considering one's IP address is revealed ...
2
votes
3answers
125 views

Connecting Two Computers Together: Assigning IP doesnt work

I messed up. I have two network cards in one machine and one in the second. I tried to connect two computers together by setting a static IP on two machines like this: comp1: sudo ip ad add ...
2
votes
2answers
244 views

How to use multiple mobile Broadband, one for browsing and one for downloading, at the same time

I have two mobile broadband to connect to the internet. When they connected to the computer both are accessible from the network manager, but only one can be connected at the same time. Currently I ...
2
votes
1answer
187 views

Why does my static IP address change itself every 24 hour period?

I'm using Ubuntu as a server running tomcat for a web application and my static IP changes every 24 hour period from xxx.xxx.xxx.100 to xxx.xxx.xxx.102 and because of that I have to restart my ...
2
votes
1answer
214 views

Multiple IPs for a single WIRELESS NIC

I would like to have both a static IP or two (different locally routable subnets) and a DHCP virtual interface on a single physical wireless NIC. Any suggestion on how to address that? Ubuntu ...
2
votes
1answer
644 views

How to send packets via a pptp vpn tunnel?

I'm trying to send certain port traffic through my ppp0 interface it's a pptp vpn tunnel, First, I'm using a wireless usb interface, I connect up to my access point, then I initiate my vpn, there is ...
2
votes
1answer
320 views

What is Ubuntu's IP reassembly timeout?

I've been told the IP reassembly timeout is 30 seconds, but I just need some clarification please It'll be great if it was from Ubuntu too, as I need to reference it! Thanks
2
votes
1answer
438 views

How to make some Virtual IP Address?

I want to make some Virtual IP Addresses for my network adapter or wireless adapter, so that I can connect to network with more than one IP address from one computer or laptop. How can I do it? (I ...
2
votes
0answers
16 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
votes
0answers
115 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
votes
0answers
946 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
vote
4answers
3k views

How to get your network ip

I am on a network with PPPoE connection for internet acces.I want to find out my network ipv4. Example: -on Windows 7 I can see both my PPPoE's connection ip and local network ip, either from ...
1
vote
2answers
592 views

Can Ubuntu query the modem or router for the IP address given by his ISP and log that?

I am connected to Internet through an ADSL modem, my ISP gives me an IP address, does Ubuntu log this IP address somewhere? How can I configure Ubuntu to log the IP address?
1
vote
3answers
1k views

Why does my IPv4 adress keep changing?

I am running many servers off of my computer and I need to port forward to do that. But recently my IPv4 Address keeps changing when I shut my computer off and turn it back on. I have no clue why ...
1
vote
3answers
3k views

Setting a static IP address.

I'm trying to set a static IP address in 12.10. When I run ifconfig, I find that both lo and wlan0 have downloaded packets. In my /etc/network/interfaces file it says auto lo. Which should I be ...
1
vote
1answer
320 views

can't /etc/hosts be set up automatically?

what I need is: automatically add mac-addresses to some file and manually add the hostnames assigned to them, and a script will then scan my home LAN for those mac-addresses and populate the ...
1
vote
1answer
67 views

Send message computer same WIFI?

Am at school and they all use the same wifi .. I wanted to ask how can I send a message from terminal or something to a girl that I like! I only know the name of his computer nothing other!!
1
vote
1answer
75 views

Ubuntu Server 12.04 stops responding soon after assigning a static IP manually

I know there's a lot written about this issue but no response seem to answer my question. So I am wondering my problem is with the most recent version of Ubuntu. I have just installed an Ubuntu 12.04 ...
1
vote
2answers
5k views

How to configure eth1

I need to set up eth1 using these : ip 10.5.15.200 netmast 255.255.255.128 mac address AA:6F:78:UI:34:34 and must be set up before eth1 starts and default gateway must be the first usable address ...
1
vote
1answer
1k views

Adding IP address to OpenVZ VPS (OpenVZ Web Panel)

I apologise if I sound at all dumb. This is my first dedicated server having used a VPS for over a year and I'm trying to setup a VPS on this new server. I purchased a subnet from my hosting provider ...
1
vote
1answer
45 views

IP address changes in vmware?

I am using Ubuntu 13.10 in vmware on my Windows PC. So the problem is: when I see my IP using ifconfig command then it shows 198.168.33.180, but when I see my IP on whatismyip.com (on Ubuntu), it ...
1
vote
1answer
41 views

Ubuntu 12.04 secondary IP externally inaccesible

I have added a secondary IP to my virtual server, Ubuntu 12.04 running in OpenVZ virtual host. I used ip addr add xx.xxx.168.95/32 label venet0:1 dev venet0. When I do ifconfig the IP shows up below ...
1
vote
1answer
28 views

Login IP's file location

I like to know where the log files that store the SSH logins are located, the last login IP is shown when logged in via SSH so I'm sure they are kept somewhere, can anyone shed som light on this? ...
1
vote
1answer
60 views

Long waiting List for Internet: What are these IP addresses?

I am having a problem of slow Internet Browsing speed. When I checked it with NetHogs there was a huge list waiting for Internet. What are these IP addresses ? How can I find them ? Is it due to ...
1
vote
1answer
3k views

I can ping IP address but can not ping hostname

My address: user@pc1:~$ ifconfig eth0 |grep "inet " inet addr:192.168.2.10 Bcast:192.168.2.255 Mask:255.255.255.0 I can ping this address user@pc1:~$ ping -c 1 192.168.2.11 PING ...
1
vote
1answer
3k views

Samba share not accessible from Windows 7 (on domain) via hostname

I have spent several days attempting to solve this- none of the answers on this forum or any other were able to help. I tried everything. I read the entire Samba manual. Nothing worked. Happily, I ...
1
vote
2answers
1k views

problems maintaining interent connection with static IP

I have been attempting to set up Ubuntu 12.04 with a static IP (with information provided by my university) as well as the local cycling IP on a workstation with two ethernet ports. However, I've had ...
1
vote
1answer
881 views

static ip address from XFCE GUI

I'm interested in the IOGear Universal Wi-Fi N Adapter as a wifi adapter. The fine manual states: Installation without WPS - Mac Step 1: Turn off your computer’s wireless connection (if applicable) ...
1
vote
2answers
1k views

How do i make ubuntu request a specific ip address from a dhcp server?

So here's the deal. My router assigns ip addresses starting from 192.168.0.50. I have a couple of computers running ubuntu which i want the router to assign 192.168.0.50 and 192.168.0.51 every time ...
1
vote
1answer
2k views

How to make a permanent configuration to eth1

I need to configure eth1 with: IP address: 10.5.15.200; Netmask: 255.255.255.128; MAC address: A2:BB:CC:DD:5:15; Gateway: 10.5.15.129. Mac address must be set up before eth1 is UP. I must use ...
1
vote
1answer
2k views

Setting up a mail server to send mail from IP

I have a fixed LAN IP, but no domain name. I'd like to be able to send emails within the LAN, and receive mails sent to my IP (user needs to send an email to username@10.xx.xx.xx). I've tried the ...
1
vote
1answer
799 views

Set up different static IP addresses for different networks

I'm relatively inexperienced with networking, but I know what I want to achieve in this case. I have a computer that I physically move between two separate local networks, but when the computer is on ...
1
vote
0answers
41 views

Can't login to my router through internal ip? [closed]

I am trying to forward ports on the internal ip in my router config on a remote computer on the same network. But I can't connect to the ip? My host system is running Ubuntu server 12.04 and I can ...
1
vote
2answers
49 views

How to get remote server's ip?

I've got the server's adress and I don't know how to get its ip adress. I have an access via ssh and I need it so bad, please help. (As for your information I've been looking for this for some time, ...
1
vote
2answers
173 views

static ip network guide

I have a fresh install of 13.10 and my networking works fine (cable model cloud router) via the standard network manager applet. I'm trying to setup my box to a use static IP instead of dhcp and I'm ...
1
vote
1answer
629 views

Can ping but cannot wget with server name

I have a problem. with the help from the people at this forum I managed to setup my network. To recapitulate i have two computers comp1 and comp2 connected like this comp2(eth0) -> comp1(eth1) ...
1
vote
0answers
225 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 ...
1
vote
0answers
202 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 ...