Managing and using network connectivity on a Ubuntu system

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Can't connect specific WIFI network (Ubuntu 15.04)

I'm using Ubuntu 15.05, My computer cannot connect specific WIFI network, but it's connecting this network with using ethernet port. Also when I open my computer with Windows 7, this can connect this ...
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Ubuntu 14.10 samba share not accessible from Windows 7

I'm really new to Ubuntu and Linux in general. I know this has been asked a million times but I'm trying to get a Samba share to work and I've been reading all kinds of threads but I just can't get it ...
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System 14.04 LTS … Staying connected with Broadcom 4312 on HP Pavilion dv6000 laptop

I am using a Broadcom b43 driver. However, my connection keeps dropping then a auto reconnect. It happens every couple of minutes. I can not maintain a reliable connection. I am running a partitioned ...
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1answer
11 views

Connect host to guest with VirtualBox on Host-Only-Network-Adapter

I am using Ubuntu on VirtualBox as guest, on a Windows 7 host. I would like to have this configuration: 1) both guest and host connected to internet. 2) guest can reach host (through ping) 3) host ...
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Samba sharing not opening in Ubuntu 14.10. & 15.04

the Samba file sharing program does not open. I have properly install the program through either command line or the software center. When I try to open the program it prompts me for my password and ...
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2answers
52 views

How to get Ubuntu 14.04 to detect and connect to open WiFi on startup from USB stick

I'm an 8th grade science teacher and I have recently been given 17 mini dell computers. All are in great physical shape, however, none of them have an operating system or hard drive. I can load Ubuntu ...
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38 views

How to install Juniper VPN on Ubuntu 15.04?

This post worked perfect for 14.04 as well as 14.10. But for 15.04 there seems to be a strange issue. The application starts and gets a tunnel ip addresses but doesn't forward any traffic. The bytes ...
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how to connet to hidden network from terminal [duplicate]

My Ubuntu graphics has stopped working. I can only access the terminal. So I am trying to connect to a hidden network through the terminal. I have tried using iwconfig for the same. But with no ...
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73 views

Can't enable Wifi on Ubuntu 15.04

I just installed Ubuntu 15.04 on my Lenovo laptop and everything seems to work fine except the Wifi. Nothing happens when I click the 'enable Wifi' button. I upgraded to 15.04 because of Wifi problems ...
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28 views

How can I connect to two networks simultaneously?

I have just moved house and my ISP have not reconnected my internet yet. So I need two connections: one to my LAN (via ethernet) for my NAS, printer, etc. and the other needs to connect wirelessly to ...
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network browsing in ubuntu 14.04 is not working [duplicate]

While trying to access a Windows network it shows: Unable to access location, Failed to retrieve share list from server, No such file or directory How to solve this, and connect with Windows shared ...
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8 views

VirtualBox - no eth0 or wlan0 connection (Ubuntu / CentOS)

I checked all possible places in order to solve this issue and only decided to post a question here because I'm at the verge of giving up. So, I recently installed VirtualBox 4.3.26 on my Ubuntu ...
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1answer
13 views

Difference between essid, bssid and ssid in commands?

If I am correct, ESS is the union of a set of BSS's. ESSID and BSSID are just their IDs respectively. How can I tell if a wireless network has essid, bssid or ssid? What differences are between ...
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Wifi connects to all networks except for one

I am using Ubuntu 12.10 on an Acer PC. I am seeing a problem with my WiFi recently. I can connect to all wireless networks except my home network. The connection is established, but when I connect to ...
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1answer
8 views

Static IP NIC card config getting “fail” error message

I am running new server on ubuntu 12.04.4. I am getting failure when I restart my NIC file /etc/network/interfaces. The command failing is sudo /etc/init.d/networking restart and ifconfig eth0 is not ...
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firefox -37.0.2 not taking proxy username and password

I am behind the proxy server, when i open Firefox-37.0.2 a window came and say "authentication required" after entering the proxy username and password, keep asking continuously "authentication ...
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cannot boot - Ubuntu 14.04 server - waiting for network configuration error

i am having problem booting into a ubuntu server. the simple error is "waiting for network configuration" The problem started when the server got turned off due to power failure. i have tried ...
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How to connect Huawai EC159 module to Ubuntu 13.11 to access 3G net?

I have Huawai EC159 module it is shown in terminal after command "lsusb" but I dont know how to access it so that I can use 3G net on my laptop. Please help me. Thank you.
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create wpa2 wifi network in 12.04 lts

I was connecting linux and windows in client server model. I have apache configured on my linux.It is working fine with "WEP" SECURITY but how to create wpa2 wifi network in 12.04LTS because I can't ...
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TP-Link WDN-4800 WLAN can ping and browse one webpage before not doing anything

I recently put together my first build, and I have a TP-Link WN-4800 WLAN for Wifi. I put it on my motherboard, and it was detected fine right away. It shows up in my network manager and can connect ...
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27 views

How to change 127.0.0.1 to any IP in ubuntu? [on hold]

I want to change 127.0.0.1 to any IP address in Ubuntu. What are the steps to do this?
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Trying to ssh into virtualbox static ip ubuntu from debian host

So, I messed with my /etc/network/interface and assigned the different addresses basically blindfolded. I can't even ping google, and really don't know what my addresses should be. This file ...
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RTL8812AE cannot connect to 5ghz networks

I recently purchased a PEX867WAC22 PCI-E wifi card from StarTech (RTL8812AE), and have not been able to connect to any 5 ghz network due to authentication timing out. The driver it comes with is only ...
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Does WICD provide options for choosing one of internal and external wireless adapters?

I plug in my usb external wifi adapter, but I can't find where in WICD I can choose to use either the internal or external wifi adapter. Where are the options? Thanks.
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Share internet connection to distribute ubuntu nodes sitting behind master

I'm working on setting up a 20 node distributed system. The data nodes are hp Compaq 6500 pc's running Ubuntu 12.4.5. The master is connected to the internet and I've configured the IP's of the nodes ...
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MAAS IP Change and IPMI problem

Here is the case: 1) I had my MAAS Server and nodes in lab network 2) I mooed the server to operation ,so I changed the IP address of MAAS 3) I executed these: sudo dpkg-reconfigure ...
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1answer
16 views

Ubuntu Network Error (Ubuntu 12.04)

We run a 1000BaseT, full duplex network, however we use auto-negotiate to ensure that minimal errors occur. A few days ago, all Ubuntu servers started having an extremely slow upload (to the outside ...
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Ubuntu 14.04 LTS, Netgear WNDA3100v2 wifi unstable and stops working randomly

I have spend a large amount of my time trying to get my WNDA3100v2 Netgear Wifi dongle to work. After hours of searching I was able to find out how to install the needed,bcmn43xx64.inf driver for it ...
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13 views

DHCP Stopped working over Bonding

Something recent broke DHCP and Bonding. I used to be able to do this: # This file describes the network interfaces available on your system # and how to activate them. For more information, see ...
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Wiereless Not Working in Macbook Pro Retina (2014)

I am a new Linux user. I have had a problem with the detection of my wireless network adapter in Kali Linux for a while. I have posted in their forums but with no success, but as I have seen that ...
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1answer
20 views

How to make virtual interface ping to a host in the network

I created a virtual interface as indicated in this Unix.SE post. I.e. sudo modprobe dummy sudo ip link set name eth10 dev dummy0 sudo ifconfig eth10 up sudo ifconfig eth10 192.168.1.150 I want to ...
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Hadoop 2.6 running on Ubuntu 14.10 desktop Pseudo Distributed mode

I have installed Hadoop2.6 and start daemons: start-dfs.sh and then I try to access HDFS and get connection refused error. Find below anand_vihar@Latitude-E5540:~$ ssh localhost Welcome to Ubuntu ...
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How do I repair a “No Route to Host” error?

I test a simple client/server program (C, BSD sockets) but get a No Route to Host message from the call to connect(). Works elsewhere - gory details: Hardware: Older desktop (brutus) running Fedora ...
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Proxy Network setting for NTP servers in Ubuntu

As debug check list on my host machine is configured to accept UDP packets on the NTP port 123. As I am working PROXY server and trinying to get connected through NTP, but everytime it was sysnced ...
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how to set set up TFTPD and DHCP for PXE like booot

I am trying to setup tftpd and dhcp to assign IP address to router and then to pass the server and path to kernel image, which will be booted. All the guides I have located tell me to install and ...
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How to disable an auto-detected default network scanner and use the USB scanner

I have a MFC scanner which was auto-detected through the network. When I try to use it, get invalid-argument therefore, I connected it via USB. Through USB it works however, the scanner programs ...
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47 views

Lost WiFi when loaded into my HP Laptop

I have loaded Ubuntu/Linux 14.04LTS onto my HP Laptop. I did a dual boot with Windows 8.1. Using Windows I have a WiFi connection. When I shut down and reboot into the Ubuntu/Linux I then loose my ...
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Will this work? [on hold]

I have a relative who doesn't have a Ethernet jack to her laptop and was wondering if a USB 2.0 Male to 10/100Mbps RJ45 LAN Ethernet Network Plug Adapter Cable will work. She has a old netbook ...
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Launch instance getting network error Ubuntu Openstack landscape cloud

I need some help in troubleshooting the network portion of my openstack setup. I have installed the landscape installer successfully. Every time I try to spin up a new instance I get this error. ...
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No NETWORK for any Linux (guests) on Mac (host) with VirtualBox

In my company I have a mac hosting an official VirtualBox 4.3.22. There is an official guest Win7 with NAT-network configured and working. I tried any linux distro (Ubuntu 14.10, Kubuntu, Mint, ...
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Setting Up Active Directory With Samba4 & Kerberos

I am new to active directory and configuring domain controllers! I have followed this guide ( ...
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1answer
46 views

How to get Wireshark to monitor a specific IP in the background

I have got Wireshark installed and I am wanting to monitor the traffic to and from a specific IP address, so what would be really useful would be if I could get Wireshark to start by itself on startup ...
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1answer
20 views

Problem to acces shared folder in Ubuntu 14.04 from Yosemite using IP address

Each time that I have tried in Yosemite " Concect to Server/ server address (smb:// IP adrress i want to connect) " I got an error "there was a problem connecting to the server using the IP address". ...
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How to change the Delayed Acknowledgement timer? (14.04)

I am trying to set different values for the timer of the Delayed Acknowledgement and see the different behaviors at packet level. I expected this to be a kernel level option but I can't locate ...
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22 views

Network married to router

I have Ubuntu 12.04 server, I upgraded to the desktop. My internet connection is married to the router. The Internet connection works fine on that router. As soon as I move the computer to a ...
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Wireless not working on Dell Latitude E6400 with Unbuntu 14.04.2

I installed a fresh copy of Ubuntu 14.04.2 to a new hard drive in a Dell Latitude E6400. Unfortunately I cannot figure out how to get the wireless working. I know the hardware works because my other ...
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Wifi Intel Centrino N-2230 not working on Toshiba Portege Z930-118 on Ubuntu 14.04 LTS

After an update from 12.04 in which everything ran smoothly, I'm experiencing issues with my WiFi connection: it can not connect, requires rebooting to start, it keeps dropping connection, and starts ...
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2answers
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Firewall Ports for Filesharing With OSX

I tried searching for this but I'm coming up short. Maybe my wording is wrong. I have my Ubuntu machine showing on my LAN - and I can see it from the Finder Window in OSX - but it won't connect when ...
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Wireless automatic disconnected

04-22-2015 My internal wireless adapter become disabled (the wireless led indicator isn't lighted), when I mount my laptop on a laptop table from my desk. Restart Ubuntu is the only solution I know ...
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Ubuntu 14.04.1 Bug - issue with my on-board networking adapter and the ACPI of my computer

This old bug affects me severely, I say old bug because it is very well documented in the following link: Bug report This bug results in two things: My on-board networking doesn't work, and trying ...