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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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 [email protected]). I've tried the ...
Manishearth's user avatar
2 votes
1 answer
2k 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 12....
jcoats's user avatar
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0 votes
2 answers
138 views

IP being masked, mysteriously

I'm running Ubuntu with Cinnamon. When checking my IP I noticed it is being masked. I have done nothing to set this, other than installing Tor. But - I am not starting up Tor, yet is it still running ...
het's user avatar
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1 vote
0 answers
275 views

How to setup and configure Proxy Server in Linux box for a network? [duplicate]

In Ubuntu, I am going to start Squid and Squish for proxy setup, but have problems in squid to make every workstation use proxy. Setup and configuration of squid is working properly, for testing ...
Shashank's user avatar
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1 vote
2 answers
1k views

Connected to wireless network but no internet

I'm connected to my wireless network but am unable to connect to the internet. It appears I do not have an IP address and I'm not sure what to do. I had working internet until I booted up this morning....
1eca's user avatar
  • 11
1 vote
1 answer
2k views

Can /etc/hosts be set up automatically?

I need to automatically add mac-addresses to some file and manually add the hostnames assigned to them. A script will then scan my home LAN for those mac-addresses and populate the /etc/hosts file, ...
piotr5's user avatar
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12 votes
6 answers
13k 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 ...
Naveen's user avatar
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4 votes
3 answers
16k views

Issue with setting up multiple IP addresses on Ubuntu Server

I want to set up 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 IPs added through Network ...
varunyellina's user avatar
0 votes
1 answer
210 views

Trouble chaining proxies

I'm having trouble chaining proxies. I opened terminal, then run this: nano /etc/proxychains.conf I add the list like this [ProxyList] # add proxy here ... # meanwile # defaults set to "tor" socks4 ...
proxy error's user avatar
12 votes
2 answers
33k views

Port listening on localhost:8000 but not on ip:8000

Hello I'm running a web application on port 8000. When I access it from the host server localhost:8000 it responds ok, 127.0.0.1:8000 also works, but 192.168.1.7:8000 does not work. 192.168.1.7 is the ...
Marionette's user avatar
3 votes
1 answer
17k 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 ...
Nihal's user avatar
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2 votes
1 answer
2k 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 ...
Phill's user avatar
  • 41
6 votes
2 answers
15k 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 ...
user avatar
2 votes
1 answer
3k 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
Mr E A's user avatar
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15 votes
3 answers
91k 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 ...
Randy Wells's user avatar
1 vote
2 answers
7k 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 ...
Jon Cairns's user avatar
0 votes
1 answer
203 views

eth0 is not present in interfaces still it connects at boot

I am connected through my eth0 to my university network. The c onnection works with no problems. Still i wander why the eth0 is not present in interfaces. I run ubuntu 12.04 ans use shorewall Thanks ...
Vanja's user avatar
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0 votes
1 answer
11k views

How can I change the public IP address?

I have Kubuntu 12.04 installed on dual boot with Windows 7, when I search for my IP on Google, I get different results: one IP for Windows 7, and other for Kubuntu (it says also no proxy detected) I ...
user37805's user avatar
  • 505
1 vote
1 answer
7k views

Changing my VM to static IP

So I'm running a ubuntu virtual machine (using vmware), and I noticed every time I restart my vm, my IP changes, is there a way to set it static? I looked over a few links and they all tell me to ...
Shelby. S's user avatar
  • 784
39 votes
5 answers
436k views

What is the equivalent terminal command to ipconfig /all?

In windows I can use ipconfig /all and this displays all the info about my connection. In terminal using ifconfig does not and only supplies limited info. I can use network manager, but it would be ...
pst007x's user avatar
  • 8,072
2 votes
1 answer
880 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 ...
Moein Hosseini's user avatar

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