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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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 ...
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2answers
924 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 ...
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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 ...
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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 ...
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3answers
4k 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 ...
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1answer
134 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" ...
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1answer
3k 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 ...
3
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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 ...
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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 ...
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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 ...
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0answers
76 views

IP being forwarded, and I don't know why

I have a computer (Ubuntu 12.04) set as a host in Synergy. The IP is 192.168.0.7, according to ifconfig -a (up until this morning, for some reason, everything worked). For the Synergy client, I have a ...
2
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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
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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 ...
1
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1answer
800 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 ...
0
votes
1answer
165 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 ...
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2answers
2k 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 ...
0
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1answer
3k 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 ...
2
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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 ...