Managing and using network connectivity on a Ubuntu system

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Wifi icon is not displayed

My networking status is on which is shown in first figure But the Networking icon i.e. the wifi icon is missing. How do I bring it back?
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Node Enlistment for the Canonical Distribution of Ubuntu Openstack

After following this installation guide and this more indepth installation guide, I have single functioning node which is both my region controller and a cluster controller (I will refer to this node ...
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1answer
20 views

hot-spot wifi with wifi

Sorry by my english Now i live in a big house and when i go to bathroom i cant connect with my wifi, so my question is... Can i extend the signal of my router if my laptop run like a router?? my ...
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9 views

Ubuntu PXE boot

I had done the deployment of Ubuntu on the network via WDS. for that I have used commands: wdsutil /set-server /bootprogram:boot\x86\pxelinux.com /architecture:x86 wdsutil /set-server ...
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2answers
30 views

Get wifi working Lenovo Thinkpad t440 on Ubuntu 12.04

I got an Lenovo Thinkpad t440 but I cannot get my wifi working with a fresh install. Which drivers should I need to download so I am able to run the wifi? I did an lshw -c network and I got an ...
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10 views

Wireless Connection drops every few days

My wireless connection drops every few days, and to fix it I usually have to restart the computer, connect via ethernet, run software update, restart my router, and then my computer reconnects. I ran ...
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1answer
23 views

Wifi drops out constantly after upgrade to xUbuntu 14.10

I upgraded yesterday from xUbuntu 14.04 to 14.10, because I hoped to have better bluetooth recognition. (I didn't). Before the upgrade Wifi would drop out seemingly randomly. More often, when there ...
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1answer
16 views

network ports(open or close)

I am new to Ubuntu.I installed it 4 days ago.I want to know something about network ports like, which port is open or close? I read many answers about it. But I am unable to understand how to ...
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1answer
29 views

What keeps ports 32003 and 25419 open on my Ubuntu 14

I did a netstat on udp ports and found a service on port 32003 and one at 25419. What are they , how can I kill them at startup if they have no use? http://i.imgur.com/fo7atla.png
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18 views

Internet and Trackpad don't work anymore (Ubuntu 14.04)

So, I just got a new laptop, and because of that I set aside my Ubuntu laptop for a few days. The last time I used it was Tuesday and it worked 100% perfectly. Flash forward to today, I just started ...
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26 views

Internet disappears after few minutes

I have a strange issue. I moved to another city with different Internet and now after being connected to Wi-fi for few minutes (~5) Internet stops working, but wi-fi is still connected. Disconnecting ...
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7 views

ip-forwarding issue

I'm trying with ip-forwarding on my ubuntu. I read well known tutorial: http://www.ducea.com/2006/08/01/how-to-enable-ip-forwarding-in-linux/ But after configure everything like in tutorial, when ...
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Traffic shaper: sfq external classifier not work as expected

Have a Ubuntu 14.04.1 LTS with 3.13.0-44-generic kernel. Also, have a traffic shaper rules: # Add discuiplines for DL device tc qdisc add dev $devDL root handle 1:0 htb default 12 # Add ...
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0answers
21 views

Define specific internet routing with Network Manager [duplicate]

I have a wireless internet that goes out to the Internet, but I have Ethernet set up for a private internal non-Internet-facing network. When I connect my Ethernet on this private static ...
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10 views

Wifi network with 2 phase authentication disconnects frequently on Ubuntu 14.04

My wifi network keeps disconnecting regularly in ubuntu. Moreover, connection speeds are also fluctuating in spite of me being stationary. The network connection is a two phase authentication ...
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20 views

Problems regarding the network manager with Wi-Fi networks

I am running Ubuntu 14.04.1 LTS 64-bit and our school uses a network with WPA2 Enterprise security and PEAP authentication without a certificate. The inner authentication method used is MSCHAPv2. In ...
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1answer
22 views

Sites and Accessing Pages is Blocked on Work Network by opends, can I bypass it? [on hold]

I am using Ubuntu 12.04 and every time I try to access sites like http://www.ubuntumaster.com I get redirected to this page. http://goo.gl/4gTxeK and some sites to this ...
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1answer
20 views

Make my IP publicly accesible [on hold]

I have this ip 19.46.1.34 ,how to make it publicly accessible around the world?
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21 views

Wifi signal recently started fluctuating

Recently my wifi signal on my laptop running Ubuntu 14.04 has lowered drastically. It is not a router issue since my phone and other laptop (which runs Windows 7) work just fine using the same ...
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1answer
21 views

No WiFi internet on Ubuntu under VirtualBox

I have just installed Ubuntu 14.04 under VirtualBox 4.3.20 on a Windows 8.1 host. I can't get any internet access over WiFi (and I can't get an Ethernet connection anywhere near the computer). All of ...
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1answer
23 views

Bind - resolving hostname to wired and wireless IP addresses

I've set up Bind on Ubuntu server to act as a DNS server on the home network. It seems to be working fine. I can load the default Apache page using the fqdn I specified in the zone forwarding file and ...
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0answers
36 views

Connected to network, but browser will not load pages…most of the time FIXED

I found a work around. I had an old router laying around from before I had comcast. So I plugged it in to my comcast modem/router, and my desktop likes that network well enough. Not the coolest ...
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11 views

Cannot find NAS on network 12.04 [on hold]

I cant find my NAS on the network. Not showing up in Nautilus. It is a Synology. In windows it shows automaticly. Please help.
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26 views

Boot randomly leaves eth1 unable to send but can receive

On my Ubuntu 14.04 server with dual NICS the NIC connected to the router, eth1, will, just after boot randomly be in a state in which it can listen but not send. I use Wireshark to monitor the ...
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1answer
27 views

Maintain IP address alive even when cable not plugged

It's on a laptop running Ubuntu 14.04, where the WiFi wlan0 is used to connect to Internet. And eth0 (RJ45) is set statically in /etc/network/interfaces auto eth0 iface eth0 inet static address ...
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11 views

configuration filter in traffic shaping in HTB

I am trying to set up a traffic shaping configuration with HTB. I have 3000 user and 3000 class that i want assign each user ( IP ) to one class by filter is there any way that i don't write 3000 ...
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setup traffic shaping with HTB and tcng

I am trying to set up a traffic shaping configuration with HTB (Linux queuing discipline manual) I have 3 subnets and 8000 users: subnet 1 : 2048 users subnet 2 : 2048 users subnet 3 : 4096 users ...
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1answer
10 views

DHCP Server Configuration Case for Fog Server [on hold]

We have a network and running actively a dhcp server (Windows) I want setup a Fog Server in same network but i cant add 066 and 067 settings to Windows Dhcp Server. Because we already use this ...
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27 views

Cannot connect over the internet to virtual hosts on Ubuntu Server 14.10 with LAMP [on hold]

I run LAMP on Ubuntu Server 14.10 and can connect to all my three virtual hosts from any host on my intranet, but I cannot connect to the virtual hosts over the internet. I am using DHCP on the ...
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0answers
6 views

System Network Certificate window Frozen

I'm using ubuntu 14.04, with gnome-shell. I try to connect to a secure wi-fi network. I enter my login and password, but no certificate -- I'm instructed by my university to ignore the warning (I ...
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1answer
9 views

I am having problems with bluetooth and camera.

I have just installed ubuntu on my laptop and i dont know how to access the camera and take pics using the laptop. The bluetooth for the laptop is unable to receive files from my mobile phone but the ...
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0answers
18 views

Empathy / Google Talk going offline

I am experiencing a problem with Empathy/Google Talk disconnecting and ultimately going offline. I have two systems, one desktop and one laptop where Empathy/Google Talk seemingly conflict with each ...
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1answer
17 views

2 dhcp servers on same network

I have a Bell home router that doesn’t support port forward ranges , just single ports. It does have DMZ though so.... I was thinking of having my Ubuntu 14 headless run a DHCP service and then doing ...
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1answer
16 views

How to run an access point and a client on a single WLAN card?

I am setting up a small home server (Xubuntu 14.10 desktop version). I have a ath9k based wireless card for internet access. Unfortunately I can not have wired network from my DSL router to the ...
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3answers
48 views

how do i make my website accessible to the internet without a static ip and from a virtual machine?

I have windows 8 host and i have installed ubuntu 14.10 server as a virtual machine in vmware. i have installed LAMP server and i am trying to host a website from it. i have created a virtual host. my ...
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1answer
18 views

how to monitor connection to NFS mount

I primarily work on files that lie on an NFS mounted network share. Since a recent IT upgrade, the network connection to this NFS mount seems sketchy -- every day, a couple of times during my work, I ...
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1answer
42 views

Wireless connection won't auto connect when VPN is set to auto connect

I have a wireless connection that connects automatically on its own just fine. In network settings it is set to: "Automatically connect when it is available" & "All users may connect to this ...
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1answer
45 views

Asus ROG G751JM - Wireless network is very slow in Ubuntu 14.10

I have a dual booted configuration, with the default Windows 8.1, and the latest Ubuntu 14.10 64-bit. The wireless network is very slow. On Windows 8.1, it works like a charm, while on Ubuntu, I get ...
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2 views

No FIOS Network After Zorin 9 Install on Wireless Desktop PC [migrated]

A friend has a home Verizon FIOS network, connected thusly: Verizon wired/wireless Router > wireless ASUS Windows 7 Desktop PC > wireless HP Windows 8.1 Laptop > wireless HP All-in-One Printer. Note ...
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52 views

Wifi stopped working on Lubuntu 14.10

My parents are using Lubuntu 14.10 for two months for now on a MSI GX710. Everything worked until now, but now suddenly it just won't connect. The OS is stock, nothing got installed after the ...
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17 views

Cannot connect to internet running Ubuntu 14.04 using VirtualBox on my MSI GT60 - Windows 8.1 x64

I'm unsure if I am asking this question in the right place so please refer me elsewhere if necessary. I installed VirtualBox v 4.3.2 on my MSI GT60 running Windows 8.1 x64 a bit ago and created a VM ...
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0answers
9 views

ns2 simulation do not work [on hold]

I have installed ns2 on Ubuntu 14.04 desktop. When I ran nam I get this error: Segmentation fault (core dumped). I don't understand this error, and I get % when write ns command, which shows the ...
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30 views

Virtualbox with Host Ubuntu and Windows 8.1 as a guest running IIS

I want to run an IIS Express server inside a Windows 8.1 machine and access the address from my Ubuntu host. However, no matter how I configure the network I cannot access the address, even thought ...
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1answer
21 views

Configuring NAT with ufw instead iptables

I want to apply this iptables rule: iptables -t nat -A PREROUTING -d 87.13.180.182 -j DNAT --to-destination 192.168.0.13 (87blabla is my public ip and 192blabla is my private ip). People ...
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0answers
18 views

eth0: no link - works after windows

I have onboard Atheros ethernet card that is supported via atl1c driver. While I do have a green leds on the card and on the switch the Ethtool claims that there is not link which is confirmed in ...
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0answers
47 views

Why can't my Ubuntu laptop ping other computers in the same LAN?

The scenario: 192.168.1.1 -- the router 192.168.1.2 -- a server, connected to the router via ethernet 192.168.1.3 -- laptop A, connected to the router via WiFi 192.168.1.8 -- laptop B, connected to ...
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1answer
71 views

Can't Connect To Wifi Network

I created a WiFi network using my wlan, as seen here but it never connects/runs i mean, it's just a local infrastructure network. Anyone have an answer?
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1answer
60 views

Network eth0 DHCP and static ip issues

Background I am running an Ubuntu Server on 14.04 which is currently up-to-date. I have only one network device connected to it. When I use my Ethernet cord and connect it from the wall to my laptop ...
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1answer
56 views

Ubuntu 14.04 wifi not working Lenovo G560

I have a Lenovo G560. Wifi will not connect. I've tried other threads but nothing works please help using Ubuntu 14.04. I will provide any output needed to help solve the problem. lspci -nnk | grep ...
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0answers
17 views

mysql database master - slave replication, where the master ip address is behind a nat [closed]

i am trying to do a mysql database master - slave replication, the master is a local server while the slave is a server on the cloud with a public ip address. The challenge i am going to face is the ...