Managing and using network connectivity on a Ubuntu system

learn more… | top users | synonyms (1)

0
votes
1answer
16 views

15.04 ASPIRE 5750g WIFI connected but doesn't work

I have a problem with my PC, it is connected via wifi but the browser doesn't load web pages. With Windows 7 the problem persists, so it is maybe a hardware problem. How i can check this? Other ...
0
votes
0answers
12 views

WAN over wifi and eth to LAN

I have a USB Network card (TP link 722n) in my system. It has been recognised by the system. I do need to connect to a remote network over wifi and access internet. SSID:WHATEVER WPA2 ...
1
vote
0answers
23 views

new install 15.04 now lost wifi, connects but no ping. also gobi not enabled

toughbook cf19 mk3 xubuntu 1504 64bit worked on wifi for a week then lost it. gets IP etc. but no ping not even to local address except local-host. also since upgrading from 1404lts Gobi has never ...
0
votes
0answers
9 views

scripts in if-up.d not executed when ppp connection is created

I have a simple script "test" in /etc/network/if-up.d directory. The script contains below commands. It creates a empty text file, whenever an interfaces changes state from down to up. #!/bin/bash ...
2
votes
1answer
33 views

changing the priority of network interface

I want my ppp0 connection to have higher priority over wlan0. I added following lines to /etc/network/interfaces file. iface wlan0 inet dhcp up ifmetric wlan0 20 ...
0
votes
0answers
18 views

Why can't Ubuntu find my network card?

I'm running Ubuntu 14.4 and have been for quite a while. Today I had to upgrade my processor to something with more cores. I swapped out the processor but when I tried to bring my machine back up, ...
0
votes
0answers
32 views

Port 22: connection refused

I am pretty new to Ubuntu so please if you can answer to this question explicitly. I have two laptops one is running on MAC OS X 10.8.5 (OS X Mountain Lion) and the other one running Ubuntu 14.04 LTS. ...
0
votes
0answers
14 views

Redirect all traffic except DNS

I successfully setup Ubuntu server up & running. Server configuration: tun0 192.168.99.1/24 NAT Enabled Note that client able to communicate with server. ping 192.168.99.1 Now I stuck at ...
0
votes
0answers
8 views

Ubuntu 15.04 disconnects from virtual networks after wakeup

After upgrade to Ubuntu 15.04, I see the same behavior with VirtualBox and VMWare Workstation. After the system is waked up from suspend, there's neither vboxnet0 nor vmnet8 devices in the output of ...
0
votes
1answer
26 views

Ubuntu 14.04 Wireless stopped working after installing updates

To be completely clear - I've been successfully using 14.04 for several months now. However, this problem just happened when I installed some routine updates. My computer is an HP Pavilion DV6. There ...
0
votes
0answers
14 views

Wireless connection suddenly switches off on Xubuntu

I'm having some troubles with my wireless connection. I've got Xubuntu 15.04 installed on my hp laptop. At boot I can connect to my dorm network connection (it uses an http proxy) and I can navigate ...
1
vote
1answer
62 views

How to install Broadcom wireless drivers offline

I have installed Ubuntu alongside Windows 8.1. But the wifi is not working in ubuntu (perhaps the drivers are not present), which worked fine in windows. Also I cant connect with ethernet since my ...
0
votes
0answers
15 views

Lenovo X220: Wifi issue

I have a problem with my wifi on my lenovo x220 using Xubuntu 15.04. Sometimes I'm connected to the network but I can't use the network (ping, traceroute, etc. ...). Troubleshooting: I have to reboot ...
1
vote
2answers
24 views

Ubuntu doesn't appear on network discovery when connected over Ethernet

I am trying and failing to establish a wired network between a PC running Windows 8.1 and another running Ubuntu 14.04. Both the computers are connected to a the same LAN via a Switch. While I am ...
0
votes
0answers
14 views

connecting ubuntu via ssh in azure cloud :bad file number port 22

I have successfully created virtual machine(ubuntu) in azure cloud,after that i am connecting it through ssh.For the first time its worked and i installed lampp stack an vsftpd on it.But now i will ...
1
vote
0answers
30 views

Install network drivers in Ubuntu 14.04 LTS 32 bit

I installed 32-bit Ubuntu 14.04 LTS in my laptop. Some one please help me to install network drivers. Is there any commands or source code to apply in terminal. I want to install both WiFi drivers ...
0
votes
0answers
12 views

Ubuntu 14.04 WIFI speedtest only 2/3 of Windows7 speedtest - Centrino 1030 adapter

I have a dual boot Dell Inspiron laptop, with a Centurion 1030 WIFI adapter. When booted into Windows7, I get 30 mbps thru-put .... when booted into Ubuntu 14.04, I get 20 mbps thru-put, in both cases ...
1
vote
0answers
35 views

Remote graphical access to Ubuntu 15.04 on raspberry pi 2 from outside network

I have Windows 7 and I would like to remotely access my rapsberry pi 2 running Ubuntu 15.04. I want remotely connect to its graphical interface and I cannot forward ports as I have no access to the ...
1
vote
0answers
46 views

Cannot get wifi to work

Please help trying to get wifi working on my laptop with new ubuntu info is below anita@anita-Presario-CQ57-Notebook-PC:~$ rfkill list 0: hp-wifi: Wireless LAN Soft blocked: yes Hard blocked: ...
0
votes
1answer
20 views

WiFi DisconnectsWireless Info Script

I'm having terrible WiFi disconnect problems. I outputted the Wireless Info Script and pasted it here http://pastebin.com/98w2w3Bb. Please help me resolve this problem. Usually when I boot the ...
0
votes
0answers
14 views

IPv6 Tunnel behind NAT

I have a Ubuntu VPS with several IPv6 addresses as well as a IPv4 address. I am travelling often, so I want to set up a tunnel to my VPS which can be initiated from a laptop behind a NAT, which will ...
0
votes
0answers
16 views

Cannot connect to VPN at all after upgrading my router

I am using UBuntu 15.04 I previously had a TPLink Modem+Router and I was able to flawlessly connect to the VPN on my Ubuntu 15.04 without any issues. Than I upgraded to a DLink 2750u Modem+Router and ...
0
votes
0answers
23 views

Connecting Ubuntu 14.04 vmware guest to wireless network

I'm running an Ubuntu 14.04 guest on a windows 7 host. I'm running an http server on the guest and I want to be able to connect from my phone over the home wireless network. I added a bridged ...
0
votes
1answer
31 views

NetworkManager does not start automatically

I used this QUESTION to configure the default of Ubuntu 14.10 to start in RUNLEVEL 1 but when I switch to another RUNLEVEL (2,3,or 5) , there is no network connection and I have to start the ...
0
votes
1answer
24 views

Ubuntu 14.04: MediaTek Wi-fi problem

After the problem mentioned here Ubuntu 14.04. Wireless MEDIATEK Corp. MT7630e not working is resolved, (Wifi connected and it was working fine until next reboot) Now the Wifi connection is being ...
0
votes
1answer
16 views

Problems with WIFI, Intel 7260

So, I'm on 15.04. I tried 14.04, but also with no luck. I also tried the latest version of Linux Mint. I've got an Intel wireless 7260 rev 6b in this laptop, and although it finds networks, it just ...
0
votes
1answer
22 views

How do you make sure that new hostname is successfully broadcast to the network?

I am trying to reset my hostname, but I am not sure if the broadcast is successful or not, is there a way to check? user:~$ sudo hostname newhostname user:~$ sudo dhclient sudo: unable to resolve ...
0
votes
0answers
17 views

ERROR java.io when program exexution

I was there during program execution vanetMobiSim with the problem below and does not trace files for input simulator ns2 . java.io.FileNotFoundException: vanetsim.xml (No such file or directory) ...
1
vote
0answers
19 views

Lubuntu doesn't take full advantage of my wireless speed capabilities

I already did a search through SO, the forums, etc. for issues that looked related to Ubuntu and my Wireless card, but I didn't find anything that was obviously relevant that worked. First, the ...
0
votes
1answer
27 views

Looking for a 3G Modem Manager Software

I have been using Ubuntu during 20+ days. I am now using a 3G wireless modem (huawei e303-h1) to connect with internet. My modem's software is specially designed for Windows. So whenever I connect it ...
0
votes
0answers
27 views

Internet connection stops every 20 minutes

My internet connection stops (all connections just keep loading) after approximately 20 minutes of usage. This happens both on ethernet connections and on wifi connections, tested from different ...
0
votes
2answers
33 views

How to allow this connection on the Firewall?

I am trying to connect my Ubuntu Web Server to my Ubuntu Storage Server using NFS (Network File System). But when I try to mount a Storage Server to the Web Server, I get a "Connection Timeout" ...
0
votes
0answers
20 views

Ubuntu admin user privileges error

When trying to change settings in the network toolbar dropdown, I get this error: Connection activation failed (32) Not authorized to control networking.` When trying to mount a USB drive: Unable ...
0
votes
1answer
24 views

DHCP for multi netwok

I hope I well get help as I got always in this excellent forum. We have over 120 networks (192, 172 and 10 ranges)and at the moment our DHCP server is windows server 2008, which I would like to ...
0
votes
0answers
8 views

Help Needed With After-Que Content Filter Reading Incoming Message, Content Filter Made With Java Program

I am trying to make a postfix after-que content filter with a java program. I am having trouble reading the message as it comes into postfix with the java program I wrote. My java program listens on ...
0
votes
0answers
24 views

Ubuntu 14.04 Samba very slow performance

I am running Samba 4.1.4 on Ubuntu 14.04. File transfer speeds to and from the share are very slow (around 3-4 MB/s). I have tested the network connection using iperf and got speeds around 85-100 ...
0
votes
1answer
8 views

Starting OpenVPN won't let me access local network IPs

OpenVPN is installed via apt-get. sudo /etc/init.d/openvpn start # works Now if I try to access, for example, my NAS device web page (or even the network share over afp:// or smb://) at ...
0
votes
0answers
16 views

Intel Built-in e1000e driver broken in 15.04 Vivid Vervet

It seems (sadly) that the built-in e1000e driver for an Intel Gigabit Ethernet controller does not work in Ubuntu 15.04. I found a workaround by obtaining a USB Gigabit Ethernet Adapter, but I wonder ...
0
votes
0answers
41 views

BCM43142 Driver difficulty on Ubuntu 14.04

I am currently having an issue setting up a dual boot for an HP laptop. The issue is with the driver for the NIC (Broadcom Corporation BCM43142 802.11). I am on step three from the following page ...
0
votes
0answers
21 views

15.04 WiFi&Wired fail w v2.19 kernels; work on 15.04 w v.2.16 kernel from 14.10. Toshiba NB15t-A

Neither WiFi nor Wired will connect on 15.04 w v2.19 kernels (or v. 3 from kernel.org) but work with 14.10's v.2.16 kernels on Toshiba Satellite NB15t-A. Title says it all. Neither will connect, ...
0
votes
0answers
20 views

Network manager core dump 15.04

I am trying to get someone to respond to this question: Ubuntu 15.04 reboots by itself But in the meantime I get this on Uuntu 15.04 nm-applet (nm-applet:4109): nm-applet-WARNING **: Cannot grab ...
0
votes
1answer
33 views

Apartment Network Issue

Ok so I'm trying to SSH into my home machine from work/school. Problem is, even though I set up my router appropriately, I can only ssh into it when I am in my apartment's network (not my own ...
0
votes
0answers
18 views

Tethering via iphone stops working

I sometimes use tethering via my iphone. Connects via wifi from ubuntu. Works fine. Except, it stops working at some point. The problem is not that I get disconnected, but rather that after having ...
0
votes
0answers
11 views

Sharing wired internet connection via router

I'm trying to set up a desktop which is running Ubuntu 14.04 to share existing ethernet connection to a router. The existing ethernet connection is an onboard connection and the output ethernet will ...
0
votes
1answer
13 views

DNS configured in network manager but not working

I have 2 DNS configured in network manager for my connection (Selected DHCP Addresses only). The DNS are working good if used with nslookup. /run/resolvconf/resolv.conf # Dynamic resolv.conf(5) ...
1
vote
0answers
12 views

MAAS Power-on problem IDRAC IPMI 2.0

I'm currently having a problem in getting MaaS (v1.7) to properly provision a Dell PowerEdge R630 server. The MaaS vm itself is able to detect the server automatically, and once the dell server boots ...
0
votes
0answers
15 views

Wired LAN not connecting

I have a PC running on dual core with a wired networking card. It was an always on connection using BSNL and all was working fine until when the wired network failed to connect. I just tried all the ...
0
votes
1answer
24 views

Network error on ubuntu 14.10

I have a ubuntu 14.10 server that took a long time in booting up, when it does boot up, it doesn't with network (it gave me long delays in bootup). dmesg | tail gave [ 225.013622] init: networking ...
1
vote
1answer
26 views

Network Manager VPNC

I am trying to connect to an Xauth Ipsec VPN, I have entered all my relavent infromation and the VPN seems to fail without an error that I can debug. Uses Username/password, Group name and then a ...
2
votes
1answer
39 views

Bluetooth disconnects, when wireless LAN is heavily loaded

Has anybody already had an issue with the Bluetooth Loudspeakers (Bose) that the sound is interrupted or stops sometimes. After some testing I found out if I disable Wireless LAN the connection works ...