Managing and using network connectivity on a Ubuntu system

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Problem with MAC address getting changed to the original one upon connection

I am making some tests with my router and it looks like the mac address I change by doing: ifconfig eth0 down ifconfig eth0 hw ether 01:02:03:04:05:06 ifconfig eth0 up Gets changed to the original ...
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6 views

Built a minimal Ubuntu now need to move it to another PC

I've built a bare minimum Ubuntu server 14.04 on my Lenovo H520. I now need to move this HDD to my Acer M290, but when booting it says "Waiting for network configuration..." and finally boots up ...
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7 views

Is there any way to show vnstat as indicator Unity?

I tray indicator-netspeed but show sum of download and upload, I want to show each one seperate, Then tray system-monitor-indicator and show total network, I want to show just ppp0 bandwith. Is there ...
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0answers
9 views

Domain name is not appearing in “work network”.Instead it displays “Network 9”

I have configured isc-dhcp-server and provided a domain name "anbu.com" along with the IP addresses and other details. My Windows 7 client got its IP address from the DHCP server. In the Network ...
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2answers
35 views

WIFI Card not working dell Inspiron 17 wifi card

I have a Dell inspiron 17 and I installed Ubuntu yesterday and when I logged in (I was originally on windows 8) there were no WiFi connections at all... I've tried everything and I can't seem to find ...
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29 views

I can't reach some website

I have 2 PCs and 2 laptops in my office. and they're connected by wire to a router, which is also the DHCP server. The 4 machines are all Ubuntu 14.10. When I only use my laptop, everything is fine: ...
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1answer
48 views

Ubuntu 14.04 - Connection is there but no internet access - messed resolvconf

Let me start with a disclaimer: I have tried to fix my problem by reading similar questions & answers, but so far no luck. Not only that, but I think that by making some changes to resolvconf I ...
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0answers
23 views

Wifi problem on Ubuntu 14.04

I have problem with drivers on my laptop. My wifi adapter is Broadcom BCM4313 802.11bgn Wireless Network Adapter I am on Ubuntu 14.04 LTS, and my kernel is : 3.13.0-40-generic I was trying three ...
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1answer
16 views

A chromium thread using port no other than 443 or 80

I tried ss command to know the status of sockets in my system (ubuntu 14.10 ), $ ss tcp ESTAB 0 0 192.168.1.10:51492 74.125.236.200:https tcp ESTAB 0 0 ...
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16 views

Ubuntu cannot see eth1

someone can tell me what i doing wrong with Virtualbox and ubuntu?
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2answers
3k views

Why do we need an IP address for a bridge?

A bridge is a layer 2 network device. On physical bridges we only have an IP address for operation and maintenance. I'm a little bit confused why we need in KVM an IP address for the bridge. I ...
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9answers
15k views

Wireless Network in Virtualbox

I just installed my first Ubuntu Server (12.04) instance and immediately ran into the following problems: Running apt-get install or update fails (see below) Running ifconfig produces peculiar IP ...
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1answer
31 views

How to create localhost

I am trying to set up a temporary SMTP server to send an email. I am using python for this (smtplib.SMTP('localhost')) and getting a socket error. When I try wget localhost, I get a "failed: ...
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2answers
3k views

Android to 12.04 USB tether not working

I'm trying to USB tether an Android phone (SGS2 LTE) to 12.04 to use its Internet connection. Enabling "USB tethering" on the phone brings up a "wired connection 2" on the network connections menu. I ...
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2answers
121 views

Why physical host nic can't be used in KVM

Why bridged networking is required for guest vm's in KVM ? Why we can't use the host nic to provide networking for guests.
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2answers
21 views

Ethernet connection is not showing in my ubuntu 14.04

These are outputs of some useful commands:- May it helps... 1.-> ifconfig output--> lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 ...
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1answer
5k views

Problems about the Drivers for Ralink RT3290 Wi-Fi Adapter

After upgrading to Ubuntu 13.10, Ralink RT3290 Wi-Fi Adapter in my laptop dosen't work. So I followed the guide in How do I get a Ralink RT3290 wireless card working? to compile the driver and load it ...
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1answer
25 views

Hplip network printer setup cannot find printer (HP Officejet Pro 8620)

I have a HP Officejet Pro 8620 printer and I am trying to setup network scan with it but the hp-setup tool claims it cannot find the printer. However the printer is connected to the network and I can ...
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23 views

routing through ubuntu server

Im having issues with routing from Windows/Linux/Mac machine through server and from desired interface out. So this is my configuration: My example will be Ubuntu -> Ubuntu -> out First machine: ...
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0answers
12 views

Why is ip forwarding not working in xubuntu 14?

I upgraded my gateway computer from xubuntu 12 to 14 and the computers on my home network lost their internet connection. I found that the upgrade had uninstalled my old firewall, Firestarter, and ...
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0answers
12 views

Huawei E303F/E303FH/E303FH not able to connect

I installed driver for my Huawei E303F/E303FH/E303FH on my Ubuntu 14.04 LST. Installed successfully but not able to connect internet. I tried to fallowed a document which come with Huawei ...
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1answer
67 views

Local DNS server 127.0.1.1 fails often

This problem happens only at my workplace and only with my laptop, not my colleagues'. The problem is that DNS resolutions fail often. Sites won't open, git pushes won't execute, and i have to ...
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0answers
26 views

WiFi connection not stable and low

I've been using ubuntu 14.04LTS for about half a year, about 2 month ago I noticed some issues with my WiFi connection like: For no reasons my network manager can switch to another WiFi connection ...
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2answers
5k views

Cannot connect to ethernet with wired connection Ubuntu 12.10

I am new to Ubuntu (installed Ubuntu 12.10 desktop on my Mac Mini today from Ubuntu iso – mac mini had blank SSD on it i.e. no OS X at all). First drama is that Ubuntu installer seems to be setup for ...
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6 views

No network on Dell INSPIRON E1505 Intel Core Duo, win Xp

Hello I have installed Ubuntu on this old laptop and everything works fine but I have no network with cable plugged in and no wifi. I have tried pretty much everything that people suggested in other ...
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5answers
25k views

How to network two Ubuntu computers using ethernet (without a router)?

How can I network two Ubuntu computers, so that they can "see" each other at an IP address?
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0answers
10 views

How to organize my media files in my home network?

I need a software like Picasa that will work on my home network indexing files, retrieving thumbnails, allowing to tag them all and keeping the files where they are without copying them back to my ...
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0answers
10 views

network interface stopped working on dell inspiron e1505

I have the same problem with multiple linux distributions. I install ubunto 14.04, the ethernet works fine, try to setup wifi, that doesn't work. reboot system, then nothing works network-wise. ...
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1answer
20 views

How to find a bad update, i.e. revert to version of a specific date and then step forward

Pursuant to this issue: Can't connect to VPN on 14.04 LTS So the last time my VPN client worked was ~20 days ago. I checked with the ISP and they say "No problem", I checked with my company's ...
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0answers
18 views

Ubuntu 14.04 AWUS036H (v5) continually re-initializes - never succeeds completely

I have Ubuntu 14.04 running on a Dell Precision M3800. I need to use two wifi cards on this machine (long story) and I have had the internal Intel 7260 working along side a Netgear..something ...
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2answers
73 views

Wireless won't connect after resume - adapter is not asleep

Running 14.04 on a Samsung N150. I am having the same problem as described in this post To reiterate, this is NOT the 'adapter sleeping' problem; it sees the network(s) and starts trying to connect ...
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20 views

WLAN Sensitivity setting is not supported

I need to set and get sensitivity value for WLAN device of my Lenovo machine. I tried to set other settings such as operation mode, txpower and frequency and it works fine. Machine Manufacturer: ...
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0answers
18 views

Minimal installer cannot use network

How would I install a bare-bones Ubuntu and get the network connection working on a system where the installer behaves as described below, seemingly as if it was not connected to a network? When I say ...
0
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1answer
42 views

Unable to connect to mixed b/g/n wifi network on Ubuntu

I cannot connect to mixed b/g/n wifi Network. I am using wl drivers. Connection to other wifi networks is working well, but to this network I cannot connect from Ubuntu (from my android phone ...
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8 views

HP 470 G1 don't work bluetooth with ubuntu 14.04

When I want to connect with me bluetooth mouns, my laptop doesn't detect it.
0
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1answer
3k views

unable to connect to internet — networking config not set up

I have a recent install of ubuntu server (all command line) and at the time of the install I was not connected to the internet. when entering sudo apt-get update I get a bunch of messages saying ...
4
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3answers
10k views

“Wired Network Disconnected” even when connected- no ethernet connection possible

I am unable to connect to the internet via ethernet or wifi. Let's fix the ethernet issue, eh? I just installed Unbuntu 12.04 on an HP Mini 1000. Previously it had 11.04, and the ethernet didn't ...
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0answers
5 views

Home Workgroup and use TeamViewer to remote control from phones & ipad - which variant?

Home Workgroup and use TeamViewer to remote control windows 7 laptops from phones & ipad. I also hope to add an older standalone PC to network - which variant (So many, I'm confused) This is why I ...
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1answer
92 views

Ubuntu WiFi connection is very unstable

I have Windows 8 and Ubuntu 14.04 dual booted on my laptop. Until last week, the WiFi on both Operating Systems were working perfectly. However, for the past few days my Ubuntu WiFi has been ...
0
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1answer
38 views

Wi-fi doesn't work without reinstalling after every restart - please help me - 14.04

Wi-fi doesn't work without reinstalling after every restart - please help me I'm using Ubuntu 14.04 and bcmwl driver on Dell Inspiron 15 3521 02:00.0 Network controller [0280]: Broadcom Corporation ...
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13 views

How to Fix the Intermittent Ping Time out

I am back with a new Question. Its weird as always. My setup is as follow; 2 Ubuntu 12.4 LTS Servers. / LynkSys POE Switch. / 01 LynkSys Router / 3 Proxim APs. The APS are connected via Cat6 to ...
0
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1answer
30 views

Why is my wireless very unstable, even after trying Wicd?

Here is my script output. I'm a brand new Linux user. I installed it on an old Windows 8.1 machine. Wireless Internet will be connected for a minute or two, then I will not be able to load Web pages. ...
0
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1answer
314 views

vmware player bridged does not work when on vpn

The problem I am having now is I vpn off from my job to a vpn provider. I then load my kali linux vm and connect to the vpn my security labs. I can run scans, enumerations etc. The problem is when I ...
0
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1answer
25 views

Correct way to create VLAN and bridges on Ubuntu 14.04?

All, When I tried to create VLANs and Bridges on Ubuntu 14.04 as following, network connection is always lost on it, what's the problem? Note that the if I only set em1(no em1.100, cloudbr0 and ...
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0answers
20 views

UMS.sh (run as service) on Ubuntu 14.04 won't read configuration file

I'm trying to get my ubuntu 14.04 to run universal media server so I can stream movies to my ps3 (lowest firmware 4.55 unfortunately - unjailbreakable). After much research on the net I was able to ...
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50 views

Wifi doesn't connect in ubuntu 14.04 [on hold]

It shows wireless network but doesn't connect. But connect with wired connection. Please help me..... I have tried this my-wireless-wifi-connection-does-not-work-what-information-is-needed-to-diagnos ...
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0answers
18 views

Troubleshooting network connectivity

This PC is connected via RJ-45 to home based router that in-turn conected via RJ-11 to public phone service shared with ISP. With wrong trace-route and Inaccurate connection data listed in ...
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61 views

14.10 Cannot connect to internet through a wired connection. Try before install boot option selected

I'm currently attempting to install 14.1 on a new computer via USB. No Wireless. It's plugged into the ethernet port on a Gigabyte GA-990FXA-UD3 ATX mother board with an AMD FX-6350 3.9 GHz 6 core ...
0
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1answer
44 views

WiFi no longer working

My network indicator was not showing up in in my menu bar. I saw someone else had a similar question, so I tried running the same things that they did. I ran apt-get install indicator-network and also ...
0
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1answer
16 views

ubuntu 14.04 can not access some sites

I recently installed ubuntu 14.04 64 bit edition. I use PPPOE internet connection. But after configuring my connection I found that I can not access some sites like(twitter, odesk, ...