Managing and using network connectivity on a Ubuntu system

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WiFi card UNCLAIMED

I have Asus r510jk with Ubuntu 14.10 on it. I had some problems with with, so I tried installing drivers for my network card: Realtek RLT8821ae. Problems occured when I restarted system, and there ...
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how to configure USB mounted WiFi WLAN Adapter

I have a WiFi USB adapter/router . This adapter is using Realtek Semiconductor Corp. RTL8191SU. and supports WLAN 802.11n the output of lsusb gives me the following output ID 0bda:8172 Realtek ...
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My Cisco Netgear

I have a desktop no working lan cable and my router doesn't read them so I use a cisco netgear. The problem is when I installed ubuntu that I can't get it to recognize my cisco so I can access the ...
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Ubuntu Netwok problem

So this is my problem. I have a server which I run Ubuntu 14.04 on. I also have the same Ubuntu on my pc which is a double boot. Now I have tried getting Samba and Splashtop to work on my server but ...
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2answers
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WiFi connection to router but no Internet connection?

I installed Ubuntu on my EasyNote-TM86 today. I can't access any websites although I am connected to my router. Other devices (including my laptop before I installed Ubuntu) are able to establish a ...
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Ubuntu won't connect to my router, But connects to my hotspot on my phone. Why is this?

I have installed Ubuntu for the first time, and it won't authenticate to my router. It connects just fine to my wireless hotspot, and i'm not sure if it can connect via ethernet cable. Any fixes to ...
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1answer
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How do I change the primary DNS address of my DSL connection in Ubuntu 14.04?

I am using a DSL network connection in my Ubuntu 14.04. There has been set up a primary DNS address of my ISP by default. But I want to use Google Public DNS. I tried to edit the connection by going ...
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28 views

Network issues on 14.10

I have installed Ubuntu 14.10 on my desktop computer in the office, but I'm having troubles with the network. The issue is that I can't make it connect to the network at all, as it displays icon for ...
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Wired connection not working although wireless is working well Ubuntu 12.04 LTS (Precise Pangolin)

I have the following ifconfig configuration: eth1 Link encap:Ethernet HWaddr 00:21:cc:d2:3d:da inet6 addr: fe80::221:ccff:fed2:3dda/64 Scope:Link UP BROADCAST RUNNING ...
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Ubuntu 14.10 (Utopic Unicorn) doesn't connect to wireless networks

I'm using 6-7 years old LG MB500, just installed Ubuntu 14.10 (Utopic Unicorn), and I can't connect to my school network (WPA-WPA2 ENTERPRISE,TLS, MSCHAPv2, no CA certificate). The computer displays ...
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28 views

Track Network Usage in Wifi Connection

I'm a student staying at a communal residence of 6 people and the rent includes internet access which is supposedly uncapped but if you really push your downloads(lets say more than 300GB) the ISP ...
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Wake-On-LAN (WOL) not working if hibernating for a longer time

I am using pm-hibernate to set my 12.04 server to power saving mode. If it is woken up using Wake-On-LAN after a short time (e.g. 10 minutes), everything works OK. But if I try to WOL the server ...
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WiFi randomly turning off or disconnecting (lenovo t540p, Ubuntu 14.04)

I installed Ubuntu 14.04 on my lenovo t540p. Everything is working good, however, the wireless keeps turning off or disconnecting from time to time. This is my iwconfig: eth0 no wireless ...
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1answer
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Ubuntu hotspot unstable and unable to connect to it from android 4.4.4 cyanogen mod

okay im using kde nm connection editor for the trick yesterday it worked but today after i booted up and started it it ran well but when i try to connect to it from my device the thing i see is ...
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Ubuntu 14.04.2 32-bit cannot connect to internet

I just installed Ubuntu on my old desktop today(removed Windows completely), and I am unable to connect to the internet. When I checked behind my CPU for the network port, the lights blink until ...
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Accessing my Server over the Public Internet

I have installed apache couchDB on my server and ran the following command : HOST="http://commcarehq:commcarehq@127.0.0.1:5984" curl -X PUT $HOST/commcarehq which was succesfull but when I run ...
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network connectivity problem in 13.10 ubuntu [on hold]

I recently installed Ubuntu 13.10 as a dual-boot with Windows.My wireless Internet connection is working in Windows but in Ubuntu 13.10 it got disconnected and my browser shows off-line I have tried ...
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1answer
37 views

How to lock down connecting to a specific WiFi

I have a laptop what has WiFi on the motherboard, but it only supports 802.11a/b and WEP. My WiFi network is 802.11n with WPA2-Personal. So I purchased a USB wireless stick that's compatible with my ...
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20 views

Can't connect to Samba server by name

I have an Ubuntu 14.04 file server running Samba 4.1.6. The server is a member of a domain with a Windows 2012 server acting as the primary domain controller. I want to connect to it using Windows 7 ...
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1answer
25 views

access ubuntu server running in virtualbox from outside network?

Is it possible to access ubuntu server running in virtualbox from outside network? I set it up with the bridget network adapter so it has its own IP. I can access my ubuntu server from inside my own ...
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19 views

Unable to connect to Verizon POP Email under DSL

Problem Description Prior to this problem, using Verizon for my standard Telephone connection. Updated my Telephone line to use DSL last Month DSL part working perfect Past two weeks ...
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Cannot able to connect to another host

After few self tests, i thought its a telnet-ing problem. So i am recreating a shorter version of this question I have two machines. cassandra is running on one machine. let assume its ip is ...
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remote CORBA lookup (firewall, port, telnet)

I'm trying to do a CORBA lookup on a LAN from one pc to another. How do I troubleshoot the connection? On the server running glassfish: thufir@doge:~$ thufir@doge:~$ ...
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Ubuntu 12.04 In tray Icon -> “Edit Connections…” not clickable

I am use ubuntu 12.04 with gnome-panel, I press network tray icon then Open following small menu, Last "Edit Connections..." not clickable how can I edit my wired and wifi connection?
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DHCP server not running

I have this : $ sudo service isc-dhcp-server start isc-dhcp-server start/running, process 7202 $ sudo service isc-dhcp-server status isc-dhcp-server stop/waiting I have two interfaces (eth0 and ...
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suddenly lost host routing on ubuntu server

i have ubuntu 14.04 server, which installed as a web server. the server also has 35 routing entry. sometimes the server suddenly lost connection to one or two another server, which routing entry has ...
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1answer
16 views

How to add local tld to name resolution searches

So in windows, if I typed ping familyroom, it would tell me that my PC in the family room is 192.168.1.61. (DHCP assigned address that isn't in any DNS) I'm running a new install of Ubuntu 14.04 ...
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MAAS Network and NAT

Here is the case: 1) I have a public network connected to internet LAN #1 2) I have another private network for MAAS and its DHCP and DNS , LAN #2 3) For internet connection i need to enable NAT ...
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1answer
27 views

Wifi problems with rtl8723be in Ubuntu 14.04

I have dual booted my Windows 8 laptop with Ubuntu 14.04. The wifi driver is Realtek rtl8723be. It didn't use to work but I updated the kernel to 3.18 and reinstalled the driver and that seemed to ...
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1answer
25 views

cannot access home wireless in ubuntu 14.10

Since i upgraded to 14.10 my home wifi doesn't show up in the list of available networks. I can connect to the wifi by phone, or other computers, but not my laptop. (btw: samsung RV520) I have tryed ...
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How can I share my printer on Ubuntu GNOME with a Windows 7 HomeGroup?

I'm using Ubuntu GNOME 14.04 on my desktop computer, which has an HP F4100 connected directly to it via USB. My parents' desktop computer runs Windows 7, which has a HomeGroup set up; my school-issued ...
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File sharing problems between Macbook Pro and pc with ubuntu 14.04

I have problems communicating my macbook Pro with my pc (running with ubuntu 14.04), i have tried to use samba but nothing happens. My macbook doesn't detect my pc ...
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How can I route certain traffic to a different access point ONLY when I'm connected to a certain network?

I know this is pretty specific, but before I do anything, I want to make sure that what I want to do doesn't brick my system if all requirements aren't met. I have a laptop. I take it to school with ...
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After system reinstall cannot connect to wi-fi

I am struggling to get my wireless network working again after a re-installation of Ubuntu 14.04. The wireless network was working perfectly before re-install. I followed the same methods as I had ...
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36 views

Can't edit connections/connect/disconnet in Gnome NetworkManager applet

since a few days I'm seeing a weird behaviour of the NetworkManager-applet in Gnome. The "Edit Connections" line is greyed out, so I'm not able to call the nm-connection-editor. From the command ...
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29 views

How to make xrdp login identical to console logon?

I'm new to Linux and a client has asked me to use Ubuntu 12.04. I need to use xrdp because I cannot find space for another monitor and kbd etc and don't own a kvm. It is preferable for me anyway. I ...
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Can't get the port redirect to work

First of all, I'm very green in ubuntu and now experimenting on my server. Here's the thing, I want my local ip 192.168.1.140:6080 to be accesible from the internet via public IP. Currently I have ...
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2answers
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DNS stops working after few seconds

When I reboot my Ubuntu 14.04 server (with Zimbra mail system) DNS lookup works a few seconds and then it stops. First I can ping my website but after a minute I cannot, see this: hans@ubumail:~$ ...
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unusual passwort request on shutdown

lately I have been asked (only a single time) to type my administrator password in order to shut down my system. Before that, I was unable to disable networking (the buttons for enable/disable wifi ...
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Can't Set DNS by DHCP

OS : Ubuntu Server 12.04 After Compile and Install Unbound and depends Library.. resolv.conf always return 127.0.0.1. Files on /etc/resolvconf/update.d not have contain 127.0.0.1 File : ...
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26 views

Restore wired network connection

Hi My problem is the following: I was at my friend, were they had mac filter on the network. I used to clone the MAC in the network manager, but I accidentally copied it in the wrong field, and ...
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Wireless Access Point Won't Delete and Automatically Connects

I tried setting up my laptop as a wireless access point. Now when I start up my machine, or take it back out of hibernation it connects itself to the wireless hotspot that I set up. I'm not sure why ...
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1answer
25 views

Cannot connect to internet through DAP-1650

Problem I cannot connect to the Internet when connected to my DLink Wireless AC1200 Access Point DAP-1650 via Ubuntu 14.04 Trusty Tahr LTS. I can connect to the Internet when connected to my Netgear ...
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3answers
43 views

How to set up a DNS cache server without port 53

my country, indonesia, is attempting to take over DNS functions in all the ISPs here. thousands of sites including reddit, vimeo, and even (sometimes) github are blocked. now this would not be so ...
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ARGH udev won't stop renaming my interfaces!

I have the following in /etc/udev/rules.d/70-persistent-net.rules SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="d0:50:99:50:43:17", KERNEL=="eth*", NAME="eth0" SUBSYSTEM=="net", ...
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Hacking The art of exploitation [on hold]

I installed the 2nd edition of Hacking:The art of exploitation on my computer i don't know what version of Ubuntu comes on the CD but it won't communicate with the Ethernet or Wireless card. WLAN ...
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Recognize ethernet adapter on ubuntu [on hold]

It seems Ubuntu-13.04-desktop installed on my PC doesn't recognize the Ethernet adapter to make a wired connection. When I type: ifconfig -a it outputs: eth0, lo only appeared with no: wlan0. Also ...
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1answer
36 views

Internet singificantly slower when using wifi

Download speed using ethernet: 70 Mbps Download speed using wifi: 2 Mbps I have connectivity issues when using wifi sometimes as well, even though signal is fine. On W7, wifi works just fine. ...
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1answer
32 views

VMWare NAT configuration

I am trying to run the latest Ubuntu Desktop as a guest inside VMWare Workstation. I need to use NAT for internet access and access to the other Virtual Machines. This works flawlessly on all of my ...
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No WiFi connection on Acer Aspire 5530G with Ubuntu 14.04

For years I used Windows on Acer Aspire 5530G, but due to some problems I have overwritten the Windows with the Ubuntu 14.04. With Windows I used to connect to Internet via WiFi all the time, but once ...