Managing and using network connectivity on a Ubuntu system

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Connection refused error in putty windows [closed]

I am trying to connect my VM via putty which is running on azure cloud. But i will get Network error:connection refused error,yesterday its works fine, now its not working.Also i tried using ssh but ...
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20 views

Wireless USB Adapter disconnects from network every 5-10 minutes

My Netgear WNA1000M 802.11bgn USB wifi adapter disconnects from the wifi network I'm using randomly at very short intervals. I'm running Windows 8 on the same system and it has no issue with internet, ...
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1answer
85 views

Wireless not recognized on my Lenovo G510 laptop on Ubuntu 15.04

How do I enable my Broadcom wireless network adapter on Ubuntu 15.04 offline? I have no LAN access.
3
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1answer
14 views

Printer Drivers for the Epson XP-200 for ubuntu 14.04

My printer is the Epson Expression XP-200, and I am unable to locate drivers for my printer. I have tried using "Add printer" to no avail. The Epson website does not list Linux drivers for this ...
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0answers
59 views

how do I configure dhclient for comcast /64 prefix?

I did have everything working, but when I updated my router to a supported version of ubuntu, it broke (Ubuntu 14.4) Where things go wrong is dhclient never grabs a /64. It either gabs the IP for ...
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8 views

How to run OpenVPN as unprivileged user with Network Manager?

Recently I noticed that when running openvpn as a client on my friends Ubuntu Gnome 14.10 system, the actual openvpn deamon is running as root. $~:ps aux | grep openvpn root <xxxxxxxxxxxxxxx> S ...
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22 views

What is going on with my networking?

I just recently discovered that there is some networking issue with my ubuntu server. Its using up all my internet bandwidth and when I type ifconfig I get this as0t0 Link encap:UNSPEC HWaddr ...
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1answer
33 views

Cannot get wifi working on macbook pro retina

I just installed Ubuntu on my MacBook Pro Retina, but am having trouble getting the wifi working. I followed the steps posted at Setup problems ubuntu 14.04 wifi on macbookpro 13.3 w/ retina (dual ...
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0answers
45 views

Programmatically write the network-manager/system-connections

Hi i want to be able to dynamically change the the wifi network configurations, i am trying to write the "ssid" file in the Network-Manager/systems-connections/ and i changed the folder permission to ...
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0answers
35 views

BQ Aquaris E4.5 - USB network adapter via OTG

I tried to get a network connection via an OTG USB ethernet adapter, but it does not seem to work OOTB. The very same ethernet adapter (from Apple, 2010) works with the Nexus 7 (2013) and Nexus 5 ...
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24 views

Network proxy settings BQ Aquaris E4.5

I am the proud owner of a brand new Ubuntu phone and come across a basic problem right away. How can I configure network proxy settings? I have poked around in the network settings, but have not found ...
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0answers
14 views

Router swich problems connecting to the internet

Hi i have a problem whit my connection to the internet. I had one internet provider and router, then i swiched to a new one and set the new router with same name and pasword as the last one. Evryting ...
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votes
3answers
158 views

No WiFi on a system76 laptop after upgrade to 15.04

I just upgraded System76 Gazelle laptop to 15.04 and wifi no longer works. It sees many networks and tries to connect to mine, but fails repeatedly (/var/log/syslog seems to indicate authentication ...
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0answers
10 views

Netgear N600 router not connecting to wifi - help!

I'm extremely new to linux and i'm looking into using linux because my windows trial is running out and I don't have the money to buy a copy. I've been running ubuntu off of a usb to try it out, but I ...
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1answer
63 views

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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0answers
14 views

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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2answers
34 views

How can I send large files between two Ubuntu devices that both are connected to a silly hotel Wi-Fi network that does not permit SSH?

I've got the network addresses of both devices but pings don't reach the computers. How can I send big files between these devices? Just to be clear, I don't want to transfer data using a USB drive ...
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1answer
33 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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1answer
308 views

system-config-samba not opening in Ubuntu 14.10. & 15.04

system-config-samba does not open. It doesn't matter whether I install the program through either the command line or the software center. When I try to open the program it prompts me for my password ...
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2answers
77 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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3answers
336 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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0answers
12 views

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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403 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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2 views

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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1answer
27 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 ...
0
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1answer
21 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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0answers
22 views

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 ...
0
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1answer
13 views

Static IP NIC card config getting “fail” error message

I am running a new server on ubuntu 12.04.4. I am getting a failure when I restart my NIC. The command failing is sudo /etc/init.d/networking restart and ifconfig eth0 is not showing the ip settings I ...
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0answers
48 views

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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0answers
21 views

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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0answers
13 views

How to connect Huawai EC159 module to Ubuntu 13.11 to access 3G net? [closed]

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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8 views

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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0answers
12 views

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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0answers
53 views

Trying to ssh into virtualbox static ip ubuntu from debian host [on hold]

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 ...
2
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0answers
38 views

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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16 views

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.
2
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0answers
24 views

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 ...
1
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1answer
15 views

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 ...
1
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1answer
32 views

Ubuntu Network Error (Ubuntu 12.04) [closed]

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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0answers
24 views

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 ...
0
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1answer
18 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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0answers
37 views

Wiereless Not Working in Macbook Pro Retina (2014) [on hold]

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 ...
1
vote
1answer
21 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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13 views

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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0answers
27 views

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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20 views

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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0answers
16 views

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 ...
0
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0answers
19 views

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 ...
0
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1answer
57 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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0answers
18 views

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. ...