Managing and using network connectivity on a Ubuntu system

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How to know if I am behind a VPN

I am currently trying to connect to VPN network of my company on 14.04 and wanted to know if there is any way to know that I am currently connected to the VPN. I have tried to find my public IP and ...
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2answers
7k views

How to set up broadband connection in Ubuntu 14.04 Desktop version [duplicate]

I have installed Ubuntu 14.04 LTS alongside Windows Xp. My broadband connection working ok in Windows Xp, but it is not working in Ubuntu. I want to connect through LAN over PPPoE. Please guide me on ...
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1answer
655 views

Why is iptables getting double rules?

I have a server running Ubuntu 12.04. A couple of reboots back I started noticing that iptables rules get doubled upon reboot. This is what I get after a reboot (with added line breaks): $ sudo ...
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1answer
648 views

How to open Port 9 permanently?

I want to know how to open port 9 permanently for wake on lan purpose. Currently I've tried using iptables -A INPUT -p udp -sport 9 -j ACCEPT, but it is giving me following error: Bad argument 9. Any ...
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2answers
1k views

Cannot connect to Wifi 14.04 LTS

So backstory, I had Ubuntu on then I wanted to try Ziron 8 and dual boot it and I starte not being able to connect to the internet whenever I installed it. So I took my Ubuntu live CD, wiped ...
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2answers
12k views

How do I connect to multiple wifi networks?

How can I connect to 2 WiFi networks at the same time with only 1 WiFi-adapter? I have two separate wireless networks, to which I need to connect the Ubuntu-PC simultaneously: The first with internet ...
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1answer
277 views

Broadcom 4311 wireless card on Dell 9400 (E1705) not working

I am following the advice of seasoned Ubuntu professionals and am posting my question here with a printout of a script posted by Wildman et al. I am grateful to you for your offer to help. Here is the ...
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1answer
52 views

Ubuntu Server bandwith monitoring

I run a program on ubuntu server that runs 24/7, I'm after a program that can measure the amount of bandwith it uses (Download and Upload seperate if possible), I need to be able to see it capturing ...
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1answer
283 views

No connection with Ethernet

When I installed ubuntu 14.04 my ethernet is not connecting. Anyone can help me , please ? NetworkManager Tool State: disconnected Device: eth0 Type: Wired Driver: r8169 ...
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2answers
525 views

How to store network-manager settings in home

I'm using Ubuntu 14.04 with the network-manager. It stores all Information about wireless networks, VPNs, ... in /etc/NetworkManager/system-connections and I was just wondering why... I thought the ...
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2answers
3k views

Internet not working in Ubuntu 14.04

I'm using Windows 8.1 with Ubuntu 14.04 with uefi dual boot. I had to force shut down Ubuntu after it hanged. Since then internet is not working in ubuntu while everything is fine in windows. ...
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0answers
43 views

How do I get wireless working again after a reinstall? [duplicate]

I had a normal wired connection to begin with when I originally installed ubuntu, but now I really want to do a reinstall to another partition (just to start fresh). The problem is that I do not ...
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3answers
21k views

ifconfig eth0 eth0: error fetching interface information: Device not found

I'm new to Ubuntu. In my system WIFI is working fine but Ethernet is not working fine. ifconfig -a lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 ...
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1answer
4k views

How to get network to “see” 14.04 desktop?

I'm also having problems with a new install of 14.04 desktop. I'm a novice to Ubuntu. I have another pc running 14.04 Studio and it works fine with my windows network. I did the following: ...
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3answers
4k views

Ubuntu 14.04 ignoring network settings performed in the UI?

I have installed Ubuntu 14.04 LTS Server, and then added a minimal desktop like so: sudo apt-get install ubuntu-desktop --no-install-recommends Then I complemented the install with the following ...
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1answer
6k views

Can't ping my own local machine by IP address?

I have an Ubuntu machine named ci-server, with wired connection and fixed IP address of 192.168.0.214. When I ping by IP I get the following output: administrator@ci-server:~$ ping 192.168.0.214 ...
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4answers
531 views

Get ip of system in local network [duplicate]

How can I find the IP of my Ubuntu System in local network‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌?
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2answers
889 views

CUPS - Print Job is received but not printing

I am trying to install a network printer just for home use. The printer works fine with my Windows 7 machine. But I thought why not put it on my Ubuntu Server as a network printer and so I did. I ...
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1answer
130 views

Config ubuntu with static ip behind router

hello i have ubuntu server 14.04, and i want to create a public server, my provider gives me a ip, gateway and network mask, but my server stay under router, and i don't know how to config it. if i ...
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2answers
87 views

Wireless connectivity problem

im a new ubuntu user. I have decided to dual boot ubuntu and windows because i wanted to give ubuntu a try and maybe make it as my primary os. But im currently having problems with my wireless network ...
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2answers
99 views

Switching from Windows 7 to Ubuntu 13.10 my wifi router

I am switching from windows 7 to Ubuntu 13.10 and I burned Ubuntu on DVD and inserted and chose option 2 to install Ubuntu only and delete Win7 and anything else. My problem is that I have wifi ...
2
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1answer
7k views

How to properly set up a 'network drive' in Ubuntu 14.04 [closed]

I've got a NAS in my home network, which can serve files both via CIFS or NFS. Some of the shares require a username and password and I want all machines to automatically mount the shares on boot. ...
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1answer
3k views

how to give user server name instead of ip when connecting through SSH?

I have a virtualbox on which I have installed ubuntu 12.04. My host computer is Mac OS (mavericks). I did a SSH key copy to my remote (which is ubuntu server and I call it myubuntu). when I did ssh ...
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1answer
270 views

Use Ubuntu Server as Proxy

First of all if i'm asking this question at wrong place i'm terribly sorry for it. I'm an expert about NT Servers but very rookie about linux systems, i'm making tests to learn it. I want to share ...
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1answer
1k views

Wired internet not working

I have just installed Lubuntu 14.04 yesterday. After installation the Internet was working pretty well. I downloaded a couple of programs from software center. But today when I tried to open my ...
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1answer
337 views

How to use Telnet through wlan0 when eth0 is default device?

I've got a bit of a conundrum that I can't find anything for, so I'm asking for help. I recently got an AR2Drone from Parrot. I'd like to get some cool software on it, explore its file architecture, ...
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1answer
58 views

15 computers + 1 “master” computer = major headache

I'm here to ask about a research project for the Math department at a university I have been just accepted to work on. The primary obstacle of the project is as follows. The project requires a set of ...
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1answer
386 views

Why is my network speed to an AFP share slow?

I've installed netatalk on my Ubuntu 14.04 box to do timemachine backups to a ZFS pool from my Mac. This is working. However, network speed seems to max out around 11 MiB/s for the transfer over ...
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3answers
9k views

Brother DCP-7065DN, Ubuntu 14.04 64bit: Can print to network printer but cannot use the scan function

I'm using brscan4 and can ping it using brsaneconfig4 and it finds it but i cannot scan from the computer using either simple scan or xsane image scanning. Both programs don't show the scanner as ...
3
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3answers
4k views

System loses static IP address

One of my headless systems is assigned a static IP address through /etc/network/interfaces on a wired Ethernet. It is connected to a router which is also a DHCP server. After a couple of days, the ...
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2answers
1k views

Lenovo G780 no ethernet (Qualcomm Atheros AR8162) on 14.04

First of all, I want to say I have been struggling with this issue for more than a year, you may think this is a duplicate, but it's not as none of the solutions worked for me, I'll try to be as ...
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1answer
913 views

/etc/network/interfaces file empty

I don't know what I did but my network manager doesn't start up and my wifi doesn't work unless I do it all manually. I've read that I need to edit /etc/network/interfaces file but when I look for ...
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1answer
2k views

rtl8192ce connection drops and fluctuation on desktop with 14.04 64bit with Encore N300 PCI-E

Running Ubuntu 14.04 on a custom desktop. I have Encore wireless N300 PCI-E Adapter ( seen here ) The driver is available for download at this link as well. I've read that a possible fix for ...
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1answer
3k views

Ubuntu 14.04 in lenovo g700 can't detect any wireless networks? [duplicate]

I have a new Lenovo g700 notebook, and just installed Ubuntu 14.04 , but it seems not to be able to configure or list the wireless networks, How can i solve this problem :\ Any advice will greatly ...
0
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1answer
559 views

network unreachanble [closed]

I have a wifi router and all other devices are working fine (have i-net) On my ubuntu box I can connect to wifi network. I cannot ping anything: $ ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 ...
0
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1answer
368 views

Qualcomm Atheros QCA8172 Not network traffic is showed

I just buy a new Lenovo Ideapad S410p with this ethernet card: mario@mario-IdeaPad-S410p:~$ lspci -nn | grep 0200 03:00.0 Ethernet controller [0200]: Qualcomm Atheros QCA8172 Fast Ethernet ...
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1answer
158 views

Question about routing VMs with static IPs in Ubuntu (Unsolved)

I have a server with an external provider that is running Ubuntu 12.04. The server is having a static IP. I have installed VMware workstation and I am running some virtual machines, one of them is for ...
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3answers
57 views

Is there a way to send my IP packets to say node “r” inside network A from a node “y” in network B via SSH?

I have two networks A and B consisting of linux nodes and I want to communicate between the two via SSH: Both networks are separated by the internet. Network A is behind a firewall, and allows only ...
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2answers
12k views

openssh server is refusing connections by blocking or resetting

On a quite fresh install of Ubuntu 14.04 (machine1), I have openssh-server with a completely default config. When connecting from machine2 on the LAN, with an empty ~/.ssh, I get the following debug ...
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1answer
3k views

Ubuntu 14.04 wired connection not working

I'm brand new to Linux so I thought I'd give it a shot for my gaming pc I just built, however it says the wired connection is not connected. When it is I really can't give out the terminal info ...
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2answers
244 views

Error when mounting a shared drive via Samba

I have set up a windows workgroup in order to see my network drive. The network shows it but I can't mount it via smb4K and access it. And get the error message The Share "//MYBOOKLIVE/Public ...
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1answer
182 views

How to re-share a printer (adding extra queue?)

I would like to know if its possible and if so how one can (re-)share an already shared network printer in ubuntu? I ask this because a host of mine can not print to one of my printers because of an ...
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1answer
2k views

Share Windows 8.1 Folder with Ubuntu 14.04

I have two standalone PC's. One is Windows 8.1 and the other is Ubuntu 14.04. I have a working network between the two. Each machine can ping the other and I have Internet shared via Ethernet from the ...
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1answer
2k views

Trying to test a service is up using nc command

I'm trying to test if a service is up and running using nc. echo ruok | nc 127.0.0.1 5111 But I get this response: This is nc from the netcat-openbsd package. An alternative nc is available in the ...
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0answers
827 views

Networking not working fresh install ubuntu server 14.04

I just installed a fresh version of ubuntu server 14.04.... the installer was able to connect and download from the internet just fine and then when it rebooted it waited a while for the network ...
2
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1answer
3k views

sudo apt-get update cannot resolve servers, but I can ping them

For the last few days, when I run sudo apt-get update, it fails because some of the hosts cannot be resolved. However, I can ping them, so they definitely are getting resolved. My internet is working ...
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2answers
200 views

ubuntu 12.04 Wifi not working

My wifi is not working since I uninstalled network-manager-gnome. The output of sudo lshow -C network is *-network DISABLED description: Wireless interface product: PRO/Wireless ...
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2answers
418 views

internet is not coming but skype is working

I am unable to connect to internet. All configuration are correct. whenever I start my system I need to do the following configuration. Log in to root, cd /etc nano resolve.conf then I write the ...
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0answers
1k views

Openstack Neutron - Cannot Access Tenant Router Gateway

Using cs:trusty/quantum-gateway-2, cs:trusty/nova-cloud-controller-40 and cs:trusty/nova-compute-2, while following Neutron setup as delineated in ...
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0answers
950 views

How do I get my Sierra pci express card configured and working?

I need to get a Sierra Wireless AirPrime MC7354 mini-PCI Express card working with Ubuntu server 14.04. The card has been activated on the Verizon network and I'm now trying to get the card configured ...