Managing and using network connectivity on a Ubuntu system

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How to perform NAT to DDNS provided ip address using iptables

I have a device connected to the internet via a 3G Cellular link. I can't get a valid static IP address for my connection due to the network operator rules. On the server side, the application which ...
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2answers
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Problem with wireless 14.04 (RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller)

I just installed Ubuntu 14.04, and am h aving trouble getting my wireless working. I've run Ubuntu desktops before, but I just can't get it working, and I'm not sure what to do. This is the output of ...
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ubuntu 14.04 not enable wifi (wireless type : RTL8723AE)

sts@sts:~$ sudo lshw -C network *-network DISABLED description: Wireless interface product: RTL8723AE PCIe Wireless Network Adapter vendor: Realtek Semiconductor Co., Ltd. ...
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I want to use ipv6 but when it's on the adapter sends deauth packets… what's going on?

The internet works fine when I don't enable ipv6, but when it's on I get deauthentication packets in dmesg outputs: root@grepsly:/home/isme# dmesg -T |grep deauth [Mon Aug 31 23:18:24 2015] wlan0: ...
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1answer
19 views

Wireless network disabled

i have a hp pavillion laptop. i have installed ubuntu 15.04. for the first time ubuntu has problem detecting wireless network. i am posting data here. if anyone could help me out it would be of great ...
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9 views

Unable to Boot OS of Cloned VM

Using VMware version 5.5.0, I cloned a virtual machine running Ubuntu 14.04 LTS (GNU/Linux 3.13.0-24-generic x86_64). Prior to powering on the cloned machine, I disconnected it from network adapters. ...
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how to obtain ipv4 address of ubuntu server running in virtual box along with ipv6?

i have installed ubuntu server on virtual box. When i execute the "ifconfig" command it shows the info of eth0 and loopback with inet6 address .but i want ipv4 address instead of ipv6 and i am not ...
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Inconsistent Wifi on Ubuntu 14.04 fixes work for a day then never work again

So for the past week I've been having an issue where Linux is saying my wifi is disabled via hardware switch. The only problem is that my laptop has no hardware switch for the wifi but it has a ...
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1answer
14 views

Moving a file from machine1 folder1 to machine1 folder2 using machine2

I hope I can explain my question clearly, bare with me. I have a machine I use as server (transmissiondeamon, plex, fileserver, that kind of stuff) This machine is headless so if I need to move a ...
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1answer
30 views

No internet connection over cable (but wifi works)

I have Ubuntu Desktop 14.04 installed on MSI GT660. I am Linux newb. I can connect to internet using wifi but not over cable. contents of /etc/network/interfaces: # interfaces(5) file used by ...
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Facing issues with Realtek RTL8723BE wireless adapter

I am facing issue with realtek RTL8723BE wireless adapter. Very poor reception and for a very short range. I tried installing the new driver from the github How to install Realtek RTL8723BE wifi ...
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1answer
24 views

VPN slows down whole internet connection

I used to connect to a home server through a private VPN and I used it just to access phpMyAdmin and the MySQL database (from my application). When connected to the VPN, my internet speed was not ...
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1answer
22 views

Running script after VPN is connected

I have a server running PPTP and two routers, I have setup the routing tables for the VPN to work but each time either the server or one of the routers is switched off, it loses the routing table and ...
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47 views

How to make static IP address dynamic in /etc/network/interfaces

I need to set the IP address of a ubuntu device() to be read from an EEPROM. The user has he option to change the IP address as well. I know the commands to read and write to the EEPROM. But how ...
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1answer
28 views

Why my Ubuntu block wlan & how to unblock?

Everytime I boot Ubuntu, my wifi lan is Soft-blocked. ( I did rfkill list, rfkill unblock wlan to verify the case. In addition I note that it is blocked some seconds after boot is finished). how can ...
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1answer
27 views

How do I connect a Cannon Pixma MG3550 printer wirelessly to my laptop?

It will not read the installation cd as its for windows, I have been on the cannon site but that is for windows or a mac. I went into settings but need a url number for the printer(absolutely no ...
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Cancel 'rfkill wlan' at boot?

When I boot, my Wifi is always soft-blocked. In terminal, sudo rfkill list does: 0:hcio: Wireless LAN Soft blocked:yes Hard blocked:no How can I definetly unblock Wireless LAN ?
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ubuntu 14.04 - Samba - How to share from another drive?

I am pretty much done setting up my home media computer but I am stuck on one of my last tasks. I am new to linux/Ubuntu so I have a lot to learn about permissions and what not and I'm pretty sure ...
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Use systemd to “mount” wlan0 at boot

Context (if needed) : at boot, the service "myservice" is launched. It manages to "up" the wlan0 interface. But it does not exist yet at boot. ifconfig, after boot, lists only eth0 and lo. If ...
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1answer
19 views

Cannot ping domains and ips from ubuntu server

I have a Ubuntu server which is running without any issues for the last one year.But now there is a wired issue caught my server and take server offline frequently. I can connect server via VNC ...
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1answer
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Boot, How to run my service **after** Network Manager?

I have made a service - which changes settings of network interfaces -. I want to start it at boot. Issue: even if I set it 99 priority, it works only a few seconds. It seems its interfaces config ...
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Hardware Networking

I'm setting a static on my P.C. such as 10.1.18.77 255.255.255.0 10.1.18.1 10.1.18.1 My Hardware on my network is 192.168.200.100-200 I would like to enter 192.168.200.100 in my browser and see my ...
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Errno socket error [on hold]

Running Ubuntu 15 on Windows 10 through VMware. It seems it is general networking error. But I have no idea what could be triggered it or how to fix. Code: buildozer android debug Error: ...
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1answer
25 views

Internet Randomly Stops Working, But Starts Working Again Upon Reboot

I am new to Ubuntu 14.04 LTS and I just installed it today on my Lenovo G50-70 laptop. Before marking this as duplicate, please hear me out. I have read countless posts on this issue, but none have ...
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24 views

Wireless turns off a few minutes after computer start

I'm having a weird problem with my computer where my wifi stops working 2 to 30 minutes after my computer starts up. The only way to get it working again is to restart my computer. I know the problem ...
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1answer
13 views

Change of graphical text interface, to completly text interface

I'm working on some new project and I will use some PC with Ubuntu Server 14.04 on it as main server. Everything after install will be done through ssh. I already created virtual machine for editing ...
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Vmplayer hosted by Ubuntu 14.04 installed Win 10 cannot use internet connection,

Hiyo, I have been seeking de solution as title, yet there is no a straight-forward right answer., so I publish it. If I get some miss, please refer it to me. Based on Ubuntu 14.04 OS installed ...
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12 views

no network connection with ubuntu-sdk

I try to connect my phone (Meizu MX4 Ubuntu Edition) to ubuntu sdk. The phone connects to ubuntu sdk, but when i go to the 'Devices' tab, this message appears: No network connection on your ...
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7 views

iptables/netfilter radius plugin

I'm looking for a way to dynamically limit bandwidth inside my docker containers according Radius attributes. I'm concidering several ways to approach: 1. Write a python script which will periodically ...
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OpenVPN: Mac client not connecting to Xubuntu Server

I've been trying to configure a VPN connection between a server running on Xubuntu 14.04, and the client running on Mac OSX Yosemite with no luck. I'm trying to make the connection with Tunnelblick. ...
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1answer
49 views

14.04 on Macbook Pro connecting to wireless

so I'm brand new to Linux and I just installed it as the single OS on my macbook pro. I'm having a problem where I can't connect to my home wifi network and I'm not sure what's wrong. Just to tell ...
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1answer
18 views

WiFi disabled on HP 630

Trying to get work WiFi on HP 630 Lubuntu 14.04 64bit. Output of lspci -knn | grep -EA2 'Eth|Net': 02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.RTL8111/8168/8411 PCI Express ...
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I am using a Huawei E173Bu-1 modem how will I get the calling Feature?

I have Modem Manager GUI but there is no calling Feature. I receive messages and calls from other mobiles, but it does not show that in my window i.e. I don't know who called me and when they called. ...
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1answer
28 views

Lubuntu doesn't see Ethernet and Wireless connection on Dell 1300 Inspiron

I just installed Lubuntu on Dell 1300. But I can't connect to Internet on this laptop and so I can't install all updates and drivers. I didn't find any information about my problem for Ethernet ...
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1answer
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Failed: OS X using SSH login Ubuntu remotely

I want to use OS X remotely access to a Ubuntu computer via SSH. I have already installed openssh server (sshd) in Ubuntu and ssh client in OS X. I can ping ip address from OS X I can ssh user@ip ...
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NFS directory content doesn't show

I used the instructions here. Here is what I have in etc/exports: /media *(rw,sync,no_root_squash,subtree_check) and here is the command I use for mounting on the client: sudo mount ...
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Setting-up rhosts with OpenSSH?

I rent a couple of VPSs running latest Ubuntu, both with OpenSSH. I'd like to try password-less login using .rhosts/.shosts. I know this is not recommended, and that it's better to use public-key ...
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Provider forbade routers

My dormitory's petty tyrant provider forbade using routers. We found the solution for Windows: 1) To make reg-file: Windows Registry Editor Version 5.00 ...
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Wifi is Connected But No Internet Connection . Ubuntu 14.04 [duplicate]

Iam Using a Double Boot Configuration of Ubuntu 14.04 and Windows . I recently got WiFi secured with a password and was able to connect to it with Windows. So I went on and connected it with Ubuntu , ...
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No WiFi with Ubuntu 14.04 on HP Pavilion 15

I installed Ubuntu 14.04 on a separate partition (Windows 8.1 on another one). During the installation the setup could already not detect a WiFi network. It only showed something like "Realtek ...
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1answer
28 views

How to Setup ethernet in ubuntu [on hold]

My ISP says this and It doesn't make any sense.. Need help please! https://www.worldlink.com.np/linux.php
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How can i fix this avahi-daemon cups configure on ubuntu 14.04?

When start my pc then showing me two line, how can i fix this ? Starting Reload cups, upon starting avahi-daemon to make sure remote queues are populated [OK] Starting Reload cups, upon starting ...
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15 views

NAT timeout on particular websites. It feels like sites that contain re-direction for content in particular

Problem Statement: Desktop connected to LAN and WLAN encounter WWW web timeout on specific web sites. This is Very consistent. This occurs on Windows with Chrome and IE. It also happens on the ...
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26 views

WiFi connection easy mode?

Currently, the only way I've found to connect to WiFi networks on my Lubuntu 15.04 box is to open nm-connection-editor, type in an SSID, and enter security settings. Simply clicking on the network ...
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Problem connecting with a server only in one computer

I'm trying to connect to a server but y only obtain this: $ ssh user@server.direction ssh_exchange_identification: read: Connection reset by peer when I run the -vv option I get this $ ssh ...
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1answer
28 views

How to use a 4G phone to provide WAN/Internet service to a LAN?

How to use a 4G phone to provide WAN/Internet service to a LAN? I intend to use this as backup when my cable modem Internet goes down. (It goes down frequently and it is down now.) My phone has a ...
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Setting up wifi connectivity mac

I am very very very new to setting up another system on my mac, so if this question seems very off base... I apologize in advance. I just installed Kali linux on my usb and then I booted it on my ...
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23 views

Cannot access internet via Ethernet cable, but ethernet is connected, wifi works

My system Ubuntu 14.04 after boot shows notification "Incorrect proxy settings". I am trying to access internet using the Ethernet cable behind the proxy network. I am able to access the internet via ...
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14 views

Internet connectivity lost after 8-27 update

Lenovo G50-70 Ubuntu 15.04 Verizon DSL used and useful for 8 months. After 8/27 update will not connect. Verizon DSL not listed. Sprint USB Franklin will connect but unusably slow. apt-get update ...
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22 views

Continuous WiFI issues on a MacBook Pro with Kubuntu 15.04 installed

I recently installed Kubuntu 15.04 on a MacBook Pro, and I've had various issues wi which includes WiFi disconnecting, reporting "Configuring Interface," and then reconnecting, or forcing me to ...