Managing and using network connectivity on a Ubuntu system

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ubuntu-15.04 Internet connection must be selected and password entered each time I reboot

While traveling, I bought Ubuntu magazine with 15.04 DVD attached. I installed it in the motel room. I seemed to work great. I am now back home. Each time I reboot my laptop, I must select the ...
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5 views

How to determine FreeTDS is working with ODBC via tsql?

Ubuntu 14.04.1 LTS This machine does not have a registered domain. Using Perl 5.18.2 and DBD::Pg, this machine connects just fine to a Postgresql database. I'm now trying to connect to an MS SQL ...
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8 views

Ethernet not working after correcting hardware clock 14.04

Started with a clean installation of 14.04, dual boot with windows. Everything was fine until I logged back into windows, and realize that the two OSes are setting the hardware clock differently. So ...
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9 views

Networking Stops Working After Waking From Suspend

Whenever I wake my machine after suspending it, networking is disabled. I have to manually re-enable it, and even then, it refuses to connect to the network, even though I'm using a wired connection.
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11 views

Weird range issue on ubuntu mate on laptop

i have recently installed ubuntu mate 14.04.2 and have got a strange problem with my os The issue is that ubuntu mate shows a very low range on wifi even when it should show a good range I have ...
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1answer
17 views

What driver for Intel AC 7260 adapter

My notebook has the infamous Intel AC 7260 adapter and after a few days the adapter just stopped working, maybe it is because I ran apt-get update but I'm not sure. I can't connect to ap I checked ...
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1answer
28 views

Wifi not working (14.04)

My Ubuntu 14.04 install doesn't connect to any WiFi network I have access to. All the required information should hopefully be here. Let me know if you need to know anything else.
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22 views

How to keep connection alive or PC online with a script or an application

I am looking for a script or an application that will make sure my PC is connected to internet, not just network. If not, it would restart /etc/init/autossh.conf. If that does not help restart ...
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8 views

Network Interface Traffic Visualizer

I have multiple interfaces active at a time, I want to visualize the bandwidth in/out from the interfaces on my PC. I know iptraf does this without visualization. So, far the closest tool I have ...
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8 views

Linux/Ubuntu Computer floods Network

I have some knowledge of computers and networking. We are using Linux computer running Ubuntu. Every time I attempt to connect the computer via Ethernet to the Internet, it immediately knocks the ...
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10 views

Can't find specific WiFi network (Ubuntu 14.04)

There is one specific coffee shop WiFi network that I cannot connect to (doesn't even show up in the available networks listing) on my Ubuntu 14.04 laptop. I had previously connected to this WiFi ...
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10 views

Create local network share with linux and mac only

I have several machines within my home that I would like to share files and printer with. All of them are Ubuntu (or a derivative) with the exception of one mac. The mac isn't as important as the ...
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Unable to connect wifi ubuntu 14.04 LTS HP Pavilion Network driver rtl8723be

I have purchased a new HP Pavilion 15-ab030TX, just installed dual boot Ubuntu 14.04 next to Win8. But my wifi has been showing either very weak signal at times or none at all. I tried multiple ...
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10 views

Networking fails and will not work until reboot

At seemingly random times, all networking on my lenovo g50-80 will stop working. I have tried restarting networking and network-manager, I have even tried to bring down all interfaces and bring them ...
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14 views

Unexpected “no network devices are available” message

I've been dual-booting Ubuntu with Windows 8 on a HP Pavilion laptop for a couple of months, and unfortunately it is now failing to recognise my network adapter. It's working fine on Windows, and I ...
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1answer
21 views

Routing and OpenVPN

O have small problem with routing and OpenVPN. After start of VPN connection all traffic goes through my OpenVPN server. But my server is behind ADSL router with 16/2 MBit Download/Upload speed. So i ...
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18 views

How to install MaaS correctly in Ubuntu Server 14.04 Trusty and commit nodes

I have been trying to install MaaS on my laptop with Ubuntu 14.04 server. I installed maas with Mutiple server install with MAAS and its running fine. Then I imported pxe-boot images and currently ...
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1answer
15 views

Cannot get or set to Redis on Vagrant guest from host due to “Error: Connection reset by peer”

I tried to forward guest port 6379 to host 6379 and to 16379 but with no luck. I can connect to redis from guest and set and get, and despite I also can connect to redis from host and get help, I ...
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20 views

Acessing (via terminal) the cifs mount (mounted via nautilus)

I have managed to mount a Windows Share via the nautilus 'connect to server' interface. Anyhow, when trying to access the mount programmatically - it is not accessible $ ll /run/user/1000/gvfs/ ls: ...
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1answer
30 views

wi-fi and bluetooth not working simultaneously

I have recently upgraded to Ubuntu 14.04 LTS 64-bit. I had this configuration working for three years with Ubuntu 12.04 LTS. I went for a fresh installation (not distro upgrade), the only thing I kept ...
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20 views

Procedure on how to install WU-NETA--025(A)

Just installed Xubuntu 14 and bought a USB Wi-Fi Dongle model WU-NETA--025(A). The CD includes Linux installer but how do I install it? I'm new to Linux. Thanks.
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22 views

What is the difference between iface eth0 inet manual and iface eth0 inet static?

What is the difference between iface eth0 inet manual and iface eth0 inet static? Thanks
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1answer
33 views

Two nics with different subnets

I have a Dell Server with 2 nic call em1 and em2 running Ubuntu Server 14.04, em1 is connected to my home network/router with a IP address 192.168.1.4 and em2 is connected to some multimedia equipment ...
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help needed in installing dropbox in 14.04 lts [duplicate]

I am trying to install Dropbox in my newly installed Ubuntu system. Every time I try, I will end with the same problem Trouble connecting to Dropbox servers. May be your internet connection in ...
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17 views

Wifi problems ethernet 10/100 base-t

Notebook 15-p002la AMD A8-6410 8GB 750GB 15,6" AMD Radeon R7 M260 2GB LAN: Ethernet 10/100 BASE-T Wi-Fi: 802.11 b/g/n Video: Gráficos AMD Radeon R7 M260, 2 GB de DDR3 I have troubles with mi ...
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21 views

Why does my wifi keep disconnecting in Ubuntu 15.04

so I am very new to Linux in general, and I have just dual booted my computer with Ubuntu 15.04 and Windows 8.1. For some reason the Wifi in Ubuntu will work for about 5 minutes and then disconnect, ...
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11 views

ubuntu won't find router ssid/signal

I am using ubuntu 15 & I got several modems and can connect to all of them except for my TRENDnet modem MAC Address D8:EB:97:20:F0:53 it does not show it's signal any more after several weeks of ...
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40 views

How to stop SSH disconnect after a a certain amount of time

I connect to my Ubuntu 14.04 VPS using putty. The connection used to just stay alive indefinitely. Now though I seem to be getting a disconnect after a certain amount of time. I have done some ...
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26 views

Need help with Belkin Play N750 on Ubuntu 14.04

I've just installed Ubuntu 14.04 onto a newly built computer, but we need to use WiFi and I've picked up a Belkin Play N750 Wireless Adapter. However, I'm really struggling to get the drivers for it ...
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19 views

Why my computer won't show wifi networks?

I had version of 10.04 but then I let someone put newer version of Ubuntu which is now 14.04 when I got my computer back then my computer found wifi networks but then it wanted an update and I updated ...
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13 views

Nvidia GTX 960 stops wifi card working

After installing the Nvidia GTX 960 into my existing rig, my wireless card no longer works. I'm unable to see anything associated with wireless networks, let alone view what ones are available. ...
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Proxy Server on Kubuntu 15.04 not working. Need help. :[

I recently installed Kubuntu 15.04. I can connect normally through LAN and wifi that requires no proxy. The problem is that the wifi in our college requires proxy with authentication. I have already ...
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using unbound with dnscrypt-proxy

My operating system is Ubuntu14.04 , I'm trying to use dnscrypt-proxy along with unbound,using unbound listening to port 53, forwarding name-resolve request to port 40, which is being listened by ...
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44 views

Can't connect to Wifi in Ubuntu Gnome 14.04

I just switched from windows to linux today so I'm a noob at this. Now, I'm running Ubuntu Gnome 14.04. I can't find any network icon on the top bar which is mentioned in the GNOME Help manual. I ...
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2answers
25 views

Notification whenever a program connect to internet/outside

I always use public WiFi in my college. Hence I thought of setting up a firewall. It was not as easy as I thought. My current set up is that all incoming connections are blocked except ssh. Is there a ...
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15 views

'apt-get' working but 'ping','sqlmap',etc are not work with Proxy Server [on hold]

'apt-get' working but 'ping','sqlmap',etc are not work with Proxy Server...what is the reason please help me
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11 views

14.04LTS - Very Slow Ethernet Connection

Note that my system is not wireless. My motherboard is Asrock Z77 Extreme4, which uses BCM57781 Driver from Broadcom. It's my first day of using UBuntu, and it's been bugging me how the download ...
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17 views

Weaker Wifi Signal Than Normal

My wifi signal recently dropped in my room and my ping increased drastically (severe ping spikes, resolved when my connection is at 3 bars but the signal wavers). I had a problem like this in the past ...
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14 views

Ubuntu cannot find network networking on HP Pavilion 17-f053ca laptop

Trying to put Ubuntu 15.04 (and/or Ubuntu 14.04) on an HP Pavilion 17-f053ca. Ubuntu can't find the network, either wireless, or wired. The Windows 8.1 on the box networks perfectly so it is not ...
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12 views

Problem Connecting To Android Hotspot

I have one Laptop running windows and another laptop running linux ubuntu. i can connect to my phones Hotspot with the machine running windows, but i can't do it with the machine running linux. also, ...
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6 views

Lubuntu crashes after i click on network manager

For whatever reason on lubuntu some reason when I click on the network manager icon my screen sometimes goes black... not sure why, I've tried pressing ctrl alt f1 with no success any ideas?
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9 views

wired internet connection does not work - Ubuntu 12.04

I have two groups of PCs (16 Lenovo and 15 fujitsu i.e. 31 PCs) and all connected to the same network at the university. Each PC has two operating systems (Windows 7 and Ubuntu 12.04). The internet ...
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7 views

OpenVPNAS Disable IP logs

How would I disable IP logging in OpenVPNAS server? I looked online but there is literally nothing out there on this subject, and when there is, it says there is a config file but it doesn't say ...
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1answer
30 views

Broadcom wifi won't connect in room router is in but will in another room further away. Although sometimes does connect - but drops later

I'm unsure whether this is a driver problem or a wifi signal problem. Broadcom wifi won't connect in room router is in but will in another room further away N.B. Sometimes it will connect - but the ...
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1answer
34 views

14.04 server, upstart, network interfaces, and frustrated

Looking for a bit of assistance here. I upgraded from 10.04 to 14.04 last night and now I can't get my network to start-up properly. It is a multi-homed system and I use iptables2 to route traffic ...
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10 views

Issues configuring BSNL broadband connection with Ubuntu Trusty

I've been struggling with this issue for more than a month now. I've a BSNL broadband connection, I want to configure it with LAN on my Ubuntu Trusty. The connection was working fine until I switched ...
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Ubuntu Trusty Tahr ping long response

When i do ping google.com i have: 64 bytes from 173.194.113.193: icmp_seq=900 ttl=57 time=694 ms 64 bytes from 173.194.113.193: icmp_seq=901 ttl=57 time=1150 ms 64 bytes from 173.194.113.193: ...
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2answers
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Ubuntu 15.04 RTL8188EE Slow/Unreliable Wifi

Hey guys I'm having some issue with my rtl8188ee network card. On Windows I get ~30-40 Mb/s whereas on Ubuntu 15.04 I get ~5 Mb/s. However, the issue comes and goes; often after disconnecting and ...
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16 views

Bind ACL — add a range of IP addrresses

I've been following this tutorial to set up Bind as the DNS on our home network. Instead of the suggested technique of adding a list of allowed IPs to the ACL in named.conf.options, I wanted to add a ...
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side effect between isc-dhcp-client, network speed and lightdm

I have 300 computers on running on 14.04 64bits Ubuntu, i use isc-dhcp-client to get ip and name from my dhcp server. I encounter the classic problem with lightdm "your system is running in ...