Managing and using network connectivity on a Ubuntu system

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Unable to turn on wifi ubuntu 14.04

Recently i bought a hp i3-5010u laptop. I am tried to connect to my WI-fi. But, i could not see any wi-fi connections. I tried to turn on wi-fi on pressing f12 button. But, for f12 bluetooth is ...
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1answer
41 views

What does this terminal message mean?

I can't get internet on one of my computers. It says connected. I had this similar problem on my other computer and I used this command to fix it: ip route add default via defaultgatewayip It ...
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1answer
3k views

how to check network card bonding speed in ubuntu 10.04

I have Ubuntu 10.04 install DELL R710 server I have configured the network bonding using the below steps sudo apt-get install ifenslave ------------------------------------------- vi ...
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Trouble connecting to the internet in windows (dual boot ubuntu)

I'm having an original Windows 8.1 dual booted with Ubuntu 15.04. My ISP has given me IP address and other settings to access the internet through LAN cable. I've same setting in both windows and ...
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1answer
4 views

Wine slow to start when blocked access to network through iptables

I've got a separate user for running untrusted applications in wine and it was relieved from accessing network at all by using # iptables -A OUTPUT -p all -m owner --uid-owner username -j DROP Now, ...
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3answers
84 views

igb Detected Tx Unit Hang

Have a: lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.3 LTS Release: 14.04 Codename: trusty with kenel 3.16.0-46-generic. Today i do dist-upgrade ...
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10 views

Creating an ethernet bridge between a windows 7 laptop and an offline Ubuntu PC

I have been trying to get internet to my Ubunutu PC to download packages I've been needing for awhile. I tried with an edimax usb wifi antenna, but the install cd required several packages for me to ...
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10 views

System unable to detect wireless driver/connections Lenovo G50-80 Laptop

I just installed Ubuntu 14.04 (kernel 3.19.0-26-generic), alongwith Windows 10. I am unable to connect to the wireless on my Ubuntu OS. I'm posting outputs of certain commands : tyagi@tyagi:~$ ...
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14 views

Wifi disabled by hardware switch

I have tried to unblock it using the rfkill command and when I use the rfkill list command it gives this: ~$ sudo rfkill list [sudo] password for brandon_x_fox: 0: phy0: Wireless LAN Soft ...
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6 views

is there any way to install atheros e2400 drivers?

I have a new motherboard. MSI Z170A GAMING M5 This motherboard has an Atheros killer e2400 ethernet controller When i do lspci -nn i get: 03.00.0 Ethernet controller [0200]: Qualcomm Atheros ...
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3k views

How to make ubuntu gateway?

i am new on Ubuntu. i want to make a gateway. i have some 25 systems and switch but i don't have any server. i want to setup a system as a gateway system and want to make a firewall. i want that ...
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7k views

Lenovo g5030 not having any hardware switch for wifi or bluetooth after installing ubuntu 14.04

In rfkill it shows wifi is hard block and bluetooth is also hardblock. Bluetooth soft unlock is working but wifi soft unlock is not working. Bios wifi is enabled. Can any body help me fix this?
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27 views

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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1answer
10 views

How to set up SAMBA on ubuntu with a 2tb drive connected to my dlink router?

I tried mounting the network drive on all 5 computers in my home with smbfs: //192.168.1.1/USB_Storage /media/Shared_drive cifs guest 0 0 It works but I just think samba might be more secure. I have ...
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1answer
6k views

How do I get the ath9k driver of backports-3.12-8 installed on Xubuntu 13.10?

I downloaded the 3.12-8 kernel files linux-headers-all.deb, linux-headers-generic_i368.deb; linux-image-generic_i386.deb from kernel.org and installed them via: dpkg -i *.deb Now I'm trying to ...
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2answers
553 views

Lenovo G510 Wi-fi driver problems

I'm new with Linux. Here is my story: I have installed Ubuntu 14.10 today on my laptop Lenovo G510 with the BCM43142 wireless card... Everything works well except the wi-fi that i can't use. I have ...
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Why do I keep getting “Unable to access the network” when using Chrome?

This only happens in Chrome, Firefox works just fine. $ uname -a Linux xxxxxxx 3.19.0-26-generic #28-Ubuntu SMP Tue Aug 11 14:16:32 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux $ cat /etc/lsb-release ...
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1answer
16 views

How to cleanup old wireless networks from the dropdown list

Once when there was a very boring lecture at Uni, 300 students started making random networks. For some reason some of them stayed and are still there. I have never connected to them, and they are not ...
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1answer
31 views

Help needed on installation of USB ethernet adapter in Ubuntu 14.04.3

I am totally new to Ubuntu. I am running Ubuntu 14.04.3 now. The problem I am facing is that I use PPPOE connection for internet, and as I have some problem in the LAN port on my laptop,I use a USB ...
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1answer
3k views

How to start dhclient at boot?

Here's the problem: root@home:~# ping 8.8.8.8 connect: Network is unreachable root@home:~# dhclient eth0 RTNETLINK answers: File exists root@home:~# ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) ...
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redis server not running show status not running

hduser@ubuntu:~$ redis-cli 127.0.0.1:6379> ping PONG 127.0.0.1:6379> quit hduser@ubuntu:~$ sudo redis-server status [sudo] password for hduser: 5194:C 04 Sep 14:51:01.970 # Fatal error, can't open ...
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4answers
31 views

Block connections to open WiFi networks

My users are using Ubuntu on corporate laptops. They don't have sudo permissions. IT security policy deny connections to open WiFi networks. How to setup Network Manager to deny connections to that ...
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wifi hotspot not working ubuntu 13.10 [on hold]

I installed Ubunutu 13.10 installed onto an external drive from a magazine disk. While trying to hotspot from an Android phone, the authentication box comes up with the correct password already ...
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How to setup PC router to monitor LAN traffic?

I'm sure I can turn a pc or a raspberry pi into a router. I'm just wondering if I can use this router to monitor traffic? I mean say I have four terminal devices owned by different person in my ...
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16 views

OpenVPN connect message in script

I was wondering, how do I run a command when my OPENVPN bash script has connected successfully to a network? I know about the: "command;nextcommand" thing do I do something like this so it runs a new ...
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1answer
20 views

iptables set-mark doesn't work

My machine has two network interfaces, one is wired (eth0) and the other one is wireless (wlan0). The wired one cannot connect to any external NTP server because there is a firewall outside. The ...
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34 views

ufw won't allow connections to port 5432

I've installed Postgresql 9.4 on Ubuntu Trusty from the PGDG ppa. I've created a database and set it listen-address to '*'. I've made an entry in the pg_hba.conf file. I can connect locally with no ...
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14 views

Cannot connect to or search for WiFi in fresh Xubuntu 14.04 install

I've been using Ubuntu for a year or so now. I've installed a few different flavors on a few different laptops around the house. On a new Acer laptop, however I have had no luck getting wifi to work. ...
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Ubuntu Mysql Server and Netbense Java Project Connectio Error

@ I Installed Ubuntu Server 14.04.3 LTS (using VMwear Workstation).... Static ip details() address 192.168.137.xxx broadcast 255.255.255.0 network 192.168.137.0 ...
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Poor performance from Network adapter with wireless connections?

I'm facing performance issues with my wireless network adapter (or drivers, I'm not sure) on Ubuntu 15.04 and now recently, on my elementaryOS Freya installation. The same works fine when I log into ...
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1answer
3k views

Ubuntu won't detect my Dell 1395 WLAN mini wireless card

I had just downloaded Ubuntu alongside windows using WUBI. I love Ubuntu but Ubuntu doesn't seem to recognize my wireless card. I have read elsewhere about installing the Ndiswrapper but that requires ...
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1answer
9k views

How do I get a rt2800usb wireless device working?

My brand new desktop running 13.04 has endless problems with wireless. Dozens of others are flooding forums with reports of the same problems. It worked fine for a few days, then there were a few ...
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JBL ON BEAT A WAKE PROBLEM [on hold]

Hey I have a problem with my JBL ON BEAT A WAKE it's showing me on the screen "UP 9" and i cannot use it. Thank You
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i am unable to run ubuntu webserver online with private ip address provided by virtual box

i have installed the ubuntu server in virtualbox and virtual box network settings are in NAT .for that virtualbox is providing the private ip address for server to work online but iam unable to ...
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Not able to access some websites after updating Ubuntu 14.10 to 15.04?

I just updated my Ubuntu from 14.10 to 15.04. After that I am not able to open some websites,for example Flipkart.com, Naukri.com etc. All these sites I am able to open in Mobile by connecting to ...
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Ethernet connection kept trying to connect but failing, more issues ensued

Alrighty. I'm brand new to Ubuntu and Linux, so bear with me here. I just installed Ubuntu 14.04 today, as I've been interested in linux and want to get into it, but I'm having a serious issue ...
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543 views

Unable to get wireless internet Qualcomm Atheros QCA6174 802.11ac

I've been looking around for hours to find a driver or a solution to get my wifi working on my new laptop (Acer Aspire V 17 nitro). But without success. I have a fresh Ubuntu 14.04 Installed, This ...
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36 views

How can I cut the mac address out of DHCPDUMP?

I am trying to use dhcpdump to recognize people logging onto my home network and give them a tailor made greeting using a credential file. I cannot get the mac address out of the results of dhcpdump. ...
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1answer
11 views

Nmap Error when using the “–script” arg

i just installed the nmap network scanner, and when i try to use it whith the "-script" parameter, it doesn't work: example: soufiane@soufiane-cvc:/usr/local$ nmap -p143,993 -Pn –script ...
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17 views

What are the directories and files that I should keep in sync for a cluster server

I am currently wanting to set up new clusters. Each cluster is defined by its software installed, software settings, and its home folder files. I want only the above to be cloned and not things ...
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19 views

Ip Forwarding between wlan0 <=> eth0: works in Terminal, fail in Browser?

I enabled ip-forwarding between my interfaces wlan0 and eth0 : in /etc/sysctl.conf sh "echo 1 > proc/etc..." 3 iptables rules. IpTables rules: sudo iptables -t nat -A POSTROUTING -o eth0 ...
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Wireless on Ubuntu 14.04 not working all the time

This is my wireless driver: product: BCM4313 802.11bgn Wireless Network Adapter vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:02:00.0 version: 01 width: 64 bits clock: 33MHz ...
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1answer
36 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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12 views

How to mount a dynamic share (NFS) from a script by a non root user

I need to mount a network shared folder (with rw access) from within a script on a headless ubuntu server. The script will receive the ip address for the share as an argument. The script will be run ...
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WIFI fails after connecting

After connecting to the WIFI, my connection fails (this is normally after 15-30 minutes). I then go to network manager and find all the WIFI points have disappeared. The only way to connect up again ...
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3answers
375 views

kubuntu 15.04 wifi problem (lenovo T420)

I have a Lenovo T420 laptop, I have recently upgraded from kubuntu 14.4 to kubuntu 15.04 and since then I have problems with wireless connections, when trying to connect to a wireless network that I ...
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13 views

Active Directory Domain Controller Not Appearing in Network Folder

I'm having issues with my Active Directory domain controller, where my server does not show up on Network or My Network Places. I am running Samba 4.1.6-Ubuntu on Ubuntu Server 14.04.3. This issue ...
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19 views

Failed to connect Internet

I'm currently using Ubuntu 15.04, my computer is a Sony Vaio 32 bits, AMD E-450 APU. Suddenly, with no previous problems before this, I tried to connect Internet and out comes this: Failed to ...
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14 views

Iwconfig set bitrate impossible

I've got a problem with iwconfig. Prelude: I had a slow wifi connection, after some research I found that can be caused by a bad bitrate configuration. I launch iwconfig and Bingo ! : eth0 no ...
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3answers
14k views

Ubuntu 14.04: Can't connect to new password protected wifi network

After upgrading to Ubuntu 14.04 I can't connect to any new WPA2 wifi access points. Existing ones work. Here is a pastebin of the syslog output: http://pastebin.com/QVgmRmXp Here is an error that ...