Managing and using network connectivity on a Ubuntu system

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2answers
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Authentication in wireless network

I am authenticating a network using WPA2, but not working (authenticates then off) OS: Ubuntu 13.04 Wireless network card : Intel Corporation Ultimate N WiFi Link 5300 $dmesg: [ 1248.966666] wlan0: ...
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0answers
4 views

wicd on ubuntu 14.04 takes too long to connect to wifi

During install of ubuntu 14.04 LTS from a mini.iso I inadvertently managed to change the number of seconds required for connecting to wifi. How do I, post installation-wise, change the number of ...
3
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1answer
56 views

Why can't my Ubuntu laptop ping other computers in the same LAN?

The scenario: 192.168.1.1 -- the router 192.168.1.2 -- a server, connected to the router via ethernet 192.168.1.3 -- laptop A, connected to the router via WiFi 192.168.1.8 -- laptop B, connected to ...
3
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3answers
6k views

Ubuntu can see network work group but can't see Ubuntu from windows

Sorry to be a complete noob, just installed Ubuntu and I'm trying to get things up and running. Goal: To connect several drives to my Ubuntu, very old, laptop. This will act as a NAS serving up ...
1
vote
1answer
50 views

Internet disappears after few minutes

I have a strange issue. I moved to another city with different Internet and now after being connected to Wi-fi for few minutes (~5) Internet stops working, but wi-fi is still connected. Disconnecting ...
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0answers
6 views

IPv6 connectivity drops after 12 hours

I have a VM running Ubuntu Server 12.04.5 LTS. For the last few days the server looses IPv6-connectivity 12 hours after the network restarts. If i restart the network with sudo /etc/init.d/networking ...
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0answers
6 views

monitor network connectivity faults?

I am suffering poor connectivity when i work at home. Frequently I see write failed broken pipe and other errors indicating that Ive lost connection. I would like to complain to my service provider, ...
0
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1answer
52 views

Wifi drops out constantly after upgrade to xUbuntu 14.10

I upgraded yesterday from xUbuntu 14.04 to 14.10, because I hoped to have better bluetooth recognition. (I didn't). Before the upgrade Wifi would drop out seemingly randomly. More often, when there ...
1
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1answer
3k views

How to ssh from windows to my ubuntu machine in the local network

When I'm trying to ssh to my local ubuntu server from the gitbash on my windows machine Im getting this error: $ ssh 192.168.1.11 ssh: connect to host 192.168.1.11 port 22: Bad file number Other ...
0
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1answer
22 views

How to access the router UI when it's IP address says “the webpage is not available”? Its not just plug and play as in windows?

I have some TPLink access points (and a travel router that can work as an access point), and want to configure them in order to extend my wifi signal. In windows I just plugged them into the ...
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0answers
7 views

Ubuntu 12.04 Wifi connects but data does not flow

I have installed a new router that is an ASUS N65U with a custom firmwware from Padavan. Every device in the house connects to it fine and has no problems except my main Ubuntu laptop. It does not ...
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0answers
14 views

Ubuntu 14.04.1 LTS has problems connecting to wifi network

It(could not connect to the wifi network) started occuring recently (maybe after some update) that system has problem with wifi connection. I have no idea what solves this but sometimes I have to ...
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0answers
10 views

Ubuntu 14.04 LTS 64BIT Wifi not connecting with Atheros AR9285 Wireless card

Brand new to Ubuntu and I really am impressed on how much better it works compared to Windows OS. The only issue I am having is my Wifi sees my network but it doesn't connect. It connects perfectly ...
0
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1answer
17 views

Wifi icon is not displayed

My networking status is on which is shown in first figure But the Networking icon i.e. the wifi icon is missing. How do I bring it back?
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0answers
7 views

Problems while creating wifi hotspot for Smartphones

Actually i wanted to enable a feature by which i want to make a wifi hotspot for my smart phones from my LAN connection of my laptop. So i tried to setup a it using ap-hotspot. But when i attempted to ...
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0answers
4 views

Simplescan can't find my network scanner

I've recently had to RMA my epson wf-4535 because it had leaking ink. Epson sent back a new wf-4630. I installed all the drivers from their website and printing works fine now. However, simplescan ...
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0answers
11 views

Wifi network with 2 phase authentication disconnects frequently on Ubuntu 14.04

My wifi network keeps disconnecting regularly in ubuntu. Moreover, connection speeds are also fluctuating in spite of me being stationary. The network connection is a two phase authentication ...
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0answers
5 views

Node Enlistment for the Canonical Distribution of Ubuntu Openstack

After following this installation guide and this more indepth installation guide, I have single functioning node which is both my region controller and a cluster controller (I will refer to this node ...
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0answers
90 views

No internet after installing Ubuntu 14.04 on Inspiron

I have installed Ubuntu 14.04 alongside Windows XP on an old Dell Inspiron 1521. When I tried Ubuntu from the pen drive, everything was peachy. However, after installing, internet doesn't work. I've ...
0
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1answer
24 views

hot-spot wifi with wifi

Sorry by my english Now i live in a big house and when i go to bathroom i cant connect with my wifi, so my question is... Can i extend the signal of my router if my laptop run like a router?? my ...
0
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2answers
34 views

Get wifi working Lenovo Thinkpad t440 on Ubuntu 12.04

I got an Lenovo Thinkpad t440 but I cannot get my wifi working with a fresh install. Which drivers should I need to download so I am able to run the wifi? I did an lshw -c network and I got an ...
0
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1answer
17 views

network ports(open or close)

I am new to Ubuntu.I installed it 4 days ago.I want to know something about network ports like, which port is open or close? I read many answers about it. But I am unable to understand how to ...
0
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0answers
11 views

Ubuntu PXE boot

I had done the deployment of Ubuntu on the network via WDS. for that I have used commands: wdsutil /set-server /bootprogram:boot\x86\pxelinux.com /architecture:x86 wdsutil /set-server ...
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0answers
27 views

Boot randomly leaves eth1 unable to send but can receive

On my Ubuntu 14.04 server with dual NICS the NIC connected to the router, eth1, will, just after boot randomly be in a state in which it can listen but not send. I use Wireshark to monitor the ...
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0answers
37 views

Connected to network, but browser will not load pages…most of the time FIXED

I found a work around. I had an old router laying around from before I had comcast. So I plugged it in to my comcast modem/router, and my desktop likes that network well enough. Not the coolest ...
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2answers
3k views

how to delete blacklisted items from /etc/modprobe.d/blacklist.conf?

My wireless doesn't work with Ubuntu 12.04.(it worked with 10.04 LTS) I have a Dell Inspiron 1501. I followed the steps posted below: Run these: sudo apt-get install --reinstall bcmwl-kernel-source ...
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0answers
11 views

Wireless Connection drops every few days

My wireless connection drops every few days, and to fix it I usually have to restart the computer, connect via ethernet, run software update, restart my router, and then my computer reconnects. I ran ...
0
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0answers
56 views

Wifi stopped working on Lubuntu 14.10

My parents are using Lubuntu 14.10 for two months for now on a MSI GX710. Everything worked until now, but now suddenly it just won't connect. The OS is stock, nothing got installed after the ...
0
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1answer
22 views

No WiFi internet on Ubuntu under VirtualBox

I have just installed Ubuntu 14.04 under VirtualBox 4.3.20 on a Windows 8.1 host. I can't get any internet access over WiFi (and I can't get an Ethernet connection anywhere near the computer). All of ...
0
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1answer
29 views

What keeps ports 32003 and 25419 open on my Ubuntu 14

I did a netstat on udp ports and found a service on port 32003 and one at 25419. What are they , how can I kill them at startup if they have no use? http://i.imgur.com/fo7atla.png
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0answers
20 views

Internet and Trackpad don't work anymore (Ubuntu 14.04)

So, I just got a new laptop, and because of that I set aside my Ubuntu laptop for a few days. The last time I used it was Tuesday and it worked 100% perfectly. Flash forward to today, I just started ...
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0answers
28 views

Request for help for fixing issues with ubuntu14.04 LTS on r15-r033tx

I have installed ubuntu 14.04 LTS on a HP r15-r033tx laptop. But facing following issues. Wifi is not stable, sometime it connects and able to browse internet but sometime it never connects. Also, ...
2
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2answers
2k views

Can ping but cannot wget with server name

I have a problem. with the help from the people at this forum I managed to setup my network. To recapitulate i have two computers comp1 and comp2 connected like this comp2(eth0) -> comp1(eth1) ...
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0answers
7 views

ip-forwarding issue

I'm trying with ip-forwarding on my ubuntu. I read well known tutorial: http://www.ducea.com/2006/08/01/how-to-enable-ip-forwarding-in-linux/ But after configure everything like in tutorial, when ...
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0answers
12 views

setup traffic shaping with HTB and tcng

I am trying to set up a traffic shaping configuration with HTB (Linux queuing discipline manual) I have 3 subnets and 8000 users: subnet 1 : 2048 users subnet 2 : 2048 users subnet 3 : 4096 users ...
0
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1answer
17 views

2 dhcp servers on same network

I have a Bell home router that doesn’t support port forward ranges , just single ports. It does have DMZ though so.... I was thinking of having my Ubuntu 14 headless run a DHCP service and then doing ...
13
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2answers
3k views

How to configure preferred network for internet?

I am connected to a LAN network and wireless network. Both provide access to internet. Sometimes when the internet on LAN is not working, the browser simply throws an exception instead of switching ...
2
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0answers
21 views

Define specific internet routing with Network Manager [duplicate]

I have a wireless internet that goes out to the Internet, but I have Ethernet set up for a private internal non-Internet-facing network. When I connect my Ethernet on this private static ...
0
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0answers
12 views

Traffic shaper: sfq external classifier not work as expected

Have a Ubuntu 14.04.1 LTS with 3.13.0-44-generic kernel. Also, have a traffic shaper rules: # Add discuiplines for DL device tc qdisc add dev $devDL root handle 1:0 htb default 12 # Add ...
0
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1answer
19 views

how to monitor connection to NFS mount

I primarily work on files that lie on an NFS mounted network share. Since a recent IT upgrade, the network connection to this NFS mount seems sketchy -- every day, a couple of times during my work, I ...
1
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4answers
4k views

Can't ssh into server, connection refused

I can't ssh into my server. The server is on a private network administrated by me. Ubuntu is version 14.04. This started when I changed to a wired ethernet card. The client is MobaXTerm (latest) ...
1
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0answers
21 views

Problems regarding the network manager with Wi-Fi networks

I am running Ubuntu 14.04.1 LTS 64-bit and our school uses a network with WPA2 Enterprise security and PEAP authentication without a certificate. The inner authentication method used is MSCHAPv2. In ...
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votes
1answer
22 views

Sites and Accessing Pages is Blocked on Work Network by opends, can I bypass it? [on hold]

I am using Ubuntu 12.04 and every time I try to access sites like http://www.ubuntumaster.com I get redirected to this page. http://goo.gl/4gTxeK and some sites to this ...
0
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4answers
123 views

Unable to set static ip on ubuntu 14.10

I have a fresh install of ubuntu 14.10 and have been trying to set a static IP but it does not connect when I try. My interfaces file looks like this: auto eth0 iface eth0 inet static address ...
0
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1answer
5k views

TFTP Error code 1: File not found

When I'm sending a file through TFTP remotely, it shows an error like tftp> put MYMIBTable.txt /home/amsys/Desktop/ Error code 1: File not found What is the problem? What is the ...
1
vote
1answer
24 views

Bind - resolving hostname to wired and wireless IP addresses

I've set up Bind on Ubuntu server to act as a DNS server on the home network. It seems to be working fine. I can load the default Apache page using the fqdn I specified in the zone forwarding file and ...
5
votes
1answer
12k views

How to I enable jumbo frames on just one network interface?

I have a server with a storage network which currently supports jumbo frames. I want to enable just eth1 to have that ability. What settings do I change and what is the best way to test the ...
0
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2answers
50 views

WiFi suddenly can't connect

I am unable to connect to my wifi. It works with the cable plugged in. Nothing happened before this problem suddenly occurred. I can see the networks that are available. I can connect to my network ...
0
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0answers
23 views

Wifi signal recently started fluctuating

Recently my wifi signal on my laptop running Ubuntu 14.04 has lowered drastically. It is not a router issue since my phone and other laptop (which runs Windows 7) work just fine using the same ...
0
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1answer
20 views

Make my IP publicly accesible [on hold]

I have this ip 19.46.1.34 ,how to make it publicly accessible around the world?