Managing and using network connectivity on a Ubuntu system

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Internet in 15.04 extremely show

Last week I upgraded to 14.04 and the Internet was really slow. I tried some things and nothing worked. I did a clean install of 15.04 shortly after. Ever since then my wifi is painfully slow in ...
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2answers
69 views

Wifi not working on ubuntu 15.04

hello I am on a brand new install of Ubuntu 15.04 on a lenovo b575 laptop everything is working but I can not enable the wifi. when I run the command "rfkill list all" everything listed says no except ...
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1answer
30 views

xubuntu 14.04 VPN connection has no network access

I am using the 'Network Connections' app under 'All Settings' to configure and connect to a VPN server for the purposes of accessing network resources and using Remote Desktop with Reminna. The VPN ...
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0answers
12 views

Having a weird network issue

I am using xubuntu 14.04.02 on a new build. Networking works great except when accessing any ubuntu site. For example, I can stream several videos and pandora at the same time with no problem. When I ...
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38 views

How can I get ethernet drivers for MSI H81M-E34?

Just built a computer for a friend with an MSI H81M-E34 motherboard, but I'm having issues finding any drivers. I can't connect to the internet through ethernet. I can't find any ethernet drivers for ...
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1answer
31 views

Strange networking issue with multiple LAN's

I have a router/gateway with multiple NIC's set-up for multiple LAN's. I have provided a brief description of the layout below. LAN1 192.168.15.1 255.255.255.0 I use LAN1 for the local network, no ...
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0answers
19 views

Browser is ok but can't direct internet through a shadowsocks server

Ok it seems an easy thing but I just couldn't make it work after lots and lots of searching. I have Ubuntu 14.04. This is config.json file including configurations of my friend's server running ...
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31 views

Ethernet cable is not detected

I recently installed ubuntu on my laptop. I have dual booted my system, my windows 8 is detecting Ethernet network but ubuntu is not detecting Ethernet network. Result of sudo cat ...
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24 views

iwlwifi not loading firmware?

So I have an elderly Lenovo T61 I've been thinking about installing Elementary OS on. Only problem so far is that it doesn't want to recognize my wifi card or connect to any network (Intel Centrino ...
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1answer
27 views

Ubuntu 14.04 - Why i can not open my domain who is after router port redirecting [closed]

I am using Ubuntu 14.04 server edition and i have installed apache2 with all modules for it so i can run a simple web server. I have really strange problem. I am using router which is giving local ...
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1answer
20 views

ubuntu PC is not accessible in VNC viewer in android

I have a PC, laptop and an android mobile. I have enabled my PC with WIFI connectivity and I am able to access it remotely in my laptop using Remmina(client). I have ubuntu installed on both my PC and ...
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1answer
47 views

wifi 8192cu tl-wn823n disabled

My laptop wifi is broken, so I bought a usb wifi card TL-WN823N(rtl8192cu module). (I know linux but I'm really new to linux drivers things.) Since I'm using "14.04.2 LTS, Trusty Tahr", I need to ...
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4answers
268 views

How can I redirect SSH users to another SSH login?

I have a person who will need access to my SSH server, but I want them to have limited access to programs. All they should be using is ssh, to login to another server. My server is an access point to ...
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1answer
25 views

Wifi power management turns back on when connecting

I've been having wifi connectivity issues, and I've narrowed the problem down. Wifi power management seems to mess with my connectivity. I can turn it off with: sudo iwconfig wlan0 power off But ...
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0answers
14 views

Has anybody got a fix for Wireless Network Authentication removal of connect button functionality? Denial of Service

I really needs some help urgently here folks as we are without internet that can only realistically be achieve wirelessly due to cable impossibilities. Something happened this evening whereupon both ...
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1answer
113 views

Lubuntu 15.04 - Broadcom wi-fi wont work at all

Just installed Lubuntu 15.04 on an Acer Aspire 5100, the broadcom router is the BCM4311 model. I have tried a few different fixes but none of them seem to work. I have a few other Acer laptops that I ...
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22 views

Ubuntu login required before Samba share on Windows computer works

I have Ubuntu Server running in VirtualBox as a Samba File server for Windows computers. It runs great. I can add users, share their folders via Samba, and they can access their folders from their ...
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1answer
38 views

Can't Access Virtual Host outside LAN Apache2

So I set up virtual hosts and they work within the LAN but not outside. My router has dynamic DNS, which is how I resolve my domain names internally and externally, Ive used multiple domains in my ...
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0answers
31 views

Download Speed: Windows 8.1 vs Ubuntu 14.04 [closed]

I am facing a curious case: I have 2 PCs, one Windows 8.1 and one Ubuntu 14.04 machine (both single boot only). I can't figure out the reason why my Ubuntu PC is getting download speed of 60 to 70 ...
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0answers
14 views

error setting up kvm bridging in 15.04

I'm trying to set up kvm bridging following the instructions at https://help.ubuntu.com/community/KVM/Networking#Creating_a_network_bridge_on_the_host but the internet will not connect at all after ...
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1answer
19 views

What does the error “r8188eu not depends mac80211” mean?

So I am trying to create a homemade Nintendo 3DS street pass relay using a script that uses Ubuntu 14.04 LTS I found at: https://gbatemp.net/threads/how-to-have-a-homemade-streetpass-relay.352645/ ...
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0answers
36 views

How to configure dynamic DNS for IPv6 using bind and isc-dhcp-server

I have a ubuntu 14.04 LTS machine created in VirtualBox which I could configure IPv4 delegation via isc-dhcp-server. Then by follow this great tutorial, I could configure such machine to also update ...
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2answers
46 views

Wired network doesn't work on ubuntu 14.04

I have no wired connection internet access on ubuntu 14.04 even though it is detected. ifconfig eth0 Link encap:Ethernet HWaddr 74:86:7a:4f:da:2c inet addr:192.168.1.102 ...
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0answers
19 views

How can a serial connection be set up as a network interface if at all?

I have a VM running Ubuntu 14.04 on Windows 7. My Windows machine is connected to a (CAN bus) data generator which ends in a serial to USB connection. I can forward this connection to the Virtualbox ...
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83 views

Lenovo G50 wireless with Atheros wifi

I have a brand new Lenovo G50 and am unable to get the Atheros wireless to go. I've installed the ideapad-laptop package: add-apt-repository ppa:hanipouspilot/ideapad-laptop apt-get update rm ...
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1answer
35 views

ubuntu 14 wifi unstable

I'm a newer to Ubuntu. Recently I installed an Ubuntu alongside with Windows, which has a wifi unstable issue. Usually the Wifi connection will turn off automatically after continues using about 5 ...
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0answers
9 views

How to run BIND DNS server as unpriviledged user?

I am developer and I use BIND DNS server to debug software. On Windows and on CentOS 6 Linux it is not a problem. I use following command line: named -f -c "/my/custom/config.conf" It works OK (of ...
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1answer
14 views

Networking indicator missing in Ubuntu 14.04

Networking indicator missing in Ubuntu 14.04 When I update my system and then restart, my system network indicator is not shown in unity panel. I try to edit: Exec=dbus-launch nm-applet in ...
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107 views

IPSEC/L2TP Ubuntu Studio 14.04 (Strongswan)

My first question: Does Ubuntu support IPSEC/L2TP/PSK vpn CLIENT? My Second Question: Is there a front end "Network Manager" that supports IPSEC/L2TP and PSK? Background: In my endeavors I came ...
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0answers
30 views

Wifi keeps disconnecting in Ubuntu 14.04 LTS

I have a Lenovo Y-5070 Gaming Laptop which I purchased in December 2014. I have dual booted my laptop, Windows 8.1 alongside Ubuntu 14.04LTS. It came pre installed with Windows 8.1, but for project ...
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0answers
24 views

Bind9 DNS Setup [migrated]

I have my network set up like this: My question: what is the best approach for setting DNS on this network so that all host (H1, H2 and H3) can resolve each other? It is enough to just have NS1 as ...
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41 views

Some pages do not load in Google Chrome on linux

Pages like search results in google.com, extentions in Chrome Web Store. It is loading for a while but rarely the page is displayed. I've tried changing the DNS to use Google and disable hardware ...
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17 views

Is it ok to run a virtual server (Virtualbox) with webroot within a shared directory with the host OS?

As everything is a little bit slower through a VM I thought I would try and put my project's webroot in a directory that is shared between the client (ubuntu 14.04) and the host (Windows 8.1). The ...
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0answers
29 views

Wireless problem in Ubuntu 14.04 - system not detecting wireless card (?)

I recently installed Ubuntu 14.04 and right after the installation the system was being able to connect to a wireless router and access the internet without any problems. However, for some bizarre ...
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1answer
34 views

How to securely share my internet connection with another machine

Right so this is my situation here, I have a router, and several machines, but now there is a new machine which needs to connect to the network at the same time as them. My router is not a Wireless ...
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0answers
46 views

How can I install a TP Link Archer T4U driver on Ubuntu 15.04?

Im looking forward to buy a wireless USB adapter, now, you may ask why, well Im running Ubuntu 15.04 on a VirtualBox virtual machine, so I want to get access to wireless networks but my internal ...
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1answer
118 views

How can I circumvent MitM attacks on hostile networks? [closed]

I suspect my local network is not as secure as one might like; I believe its administrator may be trying to intercept and sniff my traffic. Are there any ways to prevent Man-in-the-Middle attacks ...
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1answer
32 views

Install SIP client and Server in Ubuntu 14.04 and test communication

I wanted to learn and test SIP(Session Initiation protocol) as client and server on two PC's. Is there any guide or links that mentions in a plain and simple way installation and configuration ...
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0answers
37 views

Ping error for a specific IP in virtualbox

I installed Ubuntu Server 14.04 on Virtualbox and connects to the Internet using a pppoe client. The network type is bridge on Virtualbox. I can access 4.2.2.4 and google.com servers but cannot ...
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3answers
91 views

How to open a file in a browser?

When I open some .html file on my Windows 8.1 (for example this file C:\Users\me\sbox\foo\client\index.html) in a browser (the url is this: file:///C:/Users/me/sbox/foo/client/index.html), the browser ...
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1answer
45 views

Adding bridge for LXC breaks NAT/DNS

I am having a issue with a small home server. This server operates as a DNS/DHCP/NAT. I am also trying to add a few LXC instances with JUJU however I am running into a issue with the bridge. When I ...
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0answers
11 views

UbuntuLTSP public ip, no router

I am trying to set up a UbuntuLTSP server installation on my desktop, so I can use an old laptop that doesn't have a hard drive. The issue is, all the guides I have seen require that you be on a ...
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0answers
17 views

Wordpress Installation on VM on VMWare workstation. FQDN redirecting incorrectly to 127.0.0.1

Here's some network specifics about the problem. VM installed on VMWare workstation (v.10.0.0 build - 1295980) running on a Windows 2008 R2 server host in a windows environment. The end result is ...
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0answers
29 views

shows the Ethernet network but cannot connect to it

I need help with connecting to the internet using a Ethernet cable, the cable works fine. I am very new to this and need a good step by step process to fix this. Following is the output of ifconfig. ...
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0answers
27 views

MySQL remote access doesn't work when there isn't internet connection in router

I'm using Ubuntu Server 14.04, and installed MySQL 5.6 to be accessed remotely on my LAN. Everything is working perfectly, except when I lose my router internet connection. My ISP goes down often, so ...
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1answer
42 views

IP forwarding Ubuntu

For my work we have a testing space with a Ubuntu server which is also a router. Yesterday we placed a new in the rack and our meaning was to make it a webserver which is accessible from the internet. ...
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1answer
11 views

Wired Connection keeps disconnecting when plugged in

I am running an ubuntu 12.04 which i freshly installed , my wireless connection works fine but as soon as i connect wired network it disconnects after a couple of seconds. My wired connection is ...
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0answers
13 views

Network interfaces disappeared after dist-upgrade

Ever since upgrading to Ubuntu server 15.04, my eth0 and wlan1 won't come up. I've checked /etc/network/interfaces, and it looks the same as before the upgrade, but when I ifup eth0 it says the device ...
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11 views

installing rt5390 wireless error

i'm dual booting win8 and ubuntu 14.04 and am trying to get my wireless working by installing the driver for my wireless card (rt5390) by following this thread ...
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47 views

My Ubuntu 15.04 wireless connection is ridiculously slow!

I have recently upgraded my Ubuntu OS from 12.04 to 15.04 on my Samsung R580 laptop. I have been experiencing issues with my wireless connection. My wired connection is working perfectly and my other ...