Managing and using network connectivity on a Ubuntu system

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2answers
142 views

Wireless connection is very slow

I installed Kubuntu on my new HP-15 laptop that I just got. Initially the wireless connection was working well, but about two days ago I noticed a decline in the speed of the wireless connection. When ...
2
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0answers
567 views

Ubuntu 14.04 - Network problems (wireless and DNS)

I have seen a very similar problem on post: Cannot resolve dns on 12.10 install but with no clear answer and my problem is related to Ubuntu 14.04, another particularity is that this problem started ...
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1answer
341 views

Monitor network traffic usage per user by terminal?

Can you offer me some tools with which i can monitor traffic usage per user in WiFi/Ethernet network per user? And also will be good if i can see PC's name.
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1answer
1k views

static ip in NetworkManager but ifconfig does not show the ip (ubuntustudio 14.04)

i am running ubuntustudio 14.04. I have a development setup where my pc has 2 NICs one of which connects to the internet and acquires dhcp ip from the router, while the other (eth1) is used to ...
0
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1answer
328 views

WiFi interface doesn't come up

All of sudden, my builtin Wifi interface on the laptop (HP Pavilion dv7, running Ubuntu 12.04, kernel 3.2.0-64-generic) won't come up. # ifconfig wlan0 wlan0 Link encap:Ethernet HWaddr 40:25:...
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0answers
350 views

How to tunnel all traffic through openconnect

I need to connect through cisco VPN: anyconnect. I found few articles (example) describing how to do that using openconnect and network-manager-openconnect. I installed both, configured the VPN ...
0
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1answer
1k views

How to connect my Wireless Epson WF-2540 to my laptop that is running Ubuntu 14.04 LTS OS

I downloaded Ubuntu 14.04 LTS OS on my laptop a couple of months ago. I just bought a Wireless Epson WF-2540 all in one (printer, scanner, fax, and copier) a week ago. I have the printer hooked up to ...
0
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2answers
575 views

Configure LXC with additional IP ubuntu 14.04

I'm still looking for answer on my question. I have a dedicated server with ubuntu server 14.04, and 2 public ip. I want to add 1 public ip per 1 lxc. I think i've tried everything and nothing helped ...
1
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2answers
678 views

openstack: vms exchanging multicast on eth1 fail when one suffers IGMP timeout

I have two identical trusty VMs configured with dhcp for eth1. I installed mgen and configured the mgen scripts to have the two exchange 1 multicast message per second for 360 seconds. One VM stops ...
2
votes
1answer
1k views

Can I restore a backup on a different computer than it was made?

I am using the default backup software for Ubuntu 14.04(deja dup). It backs up weekly to a network location. I'm about to put a new hard drive in my laptop, and I would rather just install ubuntu and ...
0
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1answer
755 views

How to route inbound traffic on one interface to another interface in the same machine?

I have searched the forums, but can't find a solution that addresses my use-case exactly. I need to do this on a remote machine and so don't have a lot of latitude to get this wrong (and possibly lock ...
0
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1answer
758 views

wired network drops after few minutes / seconds

Recently I installed ubuntu 14.04 on my new laptop, lenovo L440. will doing the installation I used wifi. With a wifi everything works perfectly, the problem is when i plugged a lan cable. The OS ...
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0answers
306 views

Unable to use Internet (hosts unknown) after upgrade from 12.04 to 14.04 - DNS Resolv.conf problem

I upgraded my PC two days ago from 12.04 (desktop) to 14.04 (desktop). Since then, I am unable to surf on the internet. More exactly, I have the connection (wired) but not host resolving. I have ...
4
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1answer
12k views

How long is an ARP entry cached for?

Where can I find out how long ARP table entries are cached? I'm running 13.10. Can I get this on the command line?
2
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0answers
201 views

Wifi and ethernet networking stopped working in ubuntu 14.04

I have a System76 Kudu Professional version kudp1, it came with ubuntu 13.10 but I upgraded it to 14.04. After the last upgrade I did it stopped detecting ethernet and wifi networks. nm-tool output: ...
0
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1answer
69 views

Changing Order of Interfaces

Hoping someone can help me, what I'm wanting to do is change the order of my interfaces on Ubuntu 12.04LTS. We're running our Ubuntu server on a VMWare box with three virtual interfaces. I've read ...
1
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2answers
3k views

openstack: conifgure vm with static ip on eth1

I'm trying to create two trusty VMs with static IPs for eth1, but pings between the static addresses fail. Via havana dashboard, I created a network with a 10.16.1/24 subnet, disabled gateway, ...
0
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1answer
674 views

Ubuntu 14.04 Disable automatic network connection until after login

So I recently connected to my university's network for the first time using Ubuntu. After configuring it to correctly work with PEAP, it will now prompt me to login using my credentials on the login ...
0
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1answer
1k views

Wifi not working in ubuntu 14.04 all of a sudden

My wifi is not detecting any wifi connections although they are present. As soon as I start my system Network Disconnected notification shows up. But it happens to work sometime and it is quiet ...
2
votes
2answers
2k views

Realtek RTL8723be Wifi and Bluetooth 14.04

I just installed the OS on my laptop and at first wifi didn't work. After connecting to ethernet and updating everything, the wifi is working. But it disconnects here and there and requires me to ...
0
votes
2answers
1k views

14.04 Desktop: Static IP is acquired, ping works, DNS does not

My question is very similar to this one: Can ping but no DNS I have setup a static IP on my previous Ubuntu versions - 9.04 and 12.04 - without issue. I have used an identical means this time as well....
4
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1answer
9k views

Using Ubuntu 14.04 as router with iptables, clients can't go online. Probably DNS issue, iptables setting needed

CORRECTION 3: SOLVED! I needed to add the the official DNS server of my departement's VLAN as DNS to the clients. I've read through a large number of posts about iptables issues when using Linux as ...
0
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1answer
960 views

Installing Samsung network printer on Ubuntu 14.04

I am trying to install Samsung C410W printer on Ubuntu 14.04, however after 2 days of struggling any success. I tried to install it through "Add printer", through adding printer in CUPS and I tried ...
0
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1answer
274 views

Where does `resolvconf` gets the IPs of DNS servers from?

On a server machine, I have the /etc/network/interfaces file similar to: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet ...
1
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2answers
15k views

What do LISTEN and ports mean in netstat? [closed]

I have been monitoring my system lately and I have found some strange things are running on my system. Can anyone please explain what they are and why same program use several processes? Output of ...
0
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2answers
1k views

No internet via wifi/ethernet after 14.04 upgrade

I have just updated to Ubuntu 14.04 LTS on my laptop, and I seem to be having some internet problems. I have no internet connection through wifi or Ethernet, after both working in the previous version....
0
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1answer
566 views

network bridge not forwarding traffic from span port on router

I want to run several security network tools in LXC containers like ntopng, suricata, snort, etc. I hooked one of my server's NIC's up to a port that is spanned to my firewall... so basically this ...
1
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1answer
4k views

I cant access Ubuntu from Windows 7

I read and followed easy install instructions for sharing files with Ubuntu. I have three computers, Windows 7 64-bit home premium, Windows Vista and Ubuntu 14.04 LTS. My problem is that I cant ...
4
votes
1answer
3k views

Wake On Lan not working

I have been trying to get Wake On Lan to work on my Ubuntu server (14.04.1 LTS), which I have configured as a home NAS box. I have followed several tutorials to try to get this working, but for some ...
1
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0answers
165 views

I can not print on Windows 7 shared printer

For a while I can not print from my Ubuntu 12.04 64 bit pc on a Windows 7 shared printer. Before that everything was ok. The printer is HP LaserJet 1100. The error message is: "File "/usr/lib/cups/...
3
votes
2answers
7k views

Unable to connect to internet on hyper v Ubuntu 14.04

I have set up Ubuntu 14.04 on hyper-v in Windows 8.1. I also have an external network switch linked to Ethernet. The internet and LAN works fine on my host windows 8.1 PC. But I am not able to use ...
1
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2answers
295 views

How to get Linksys WUSB54Gv2 working with Ubuntu 12.04.5 (32-bit)

The older Dell tower (Dell Dimension 4600) that i'm using doesn't have Wi-Fi built in (duh) and Ubuntu will not accept my network adapter. I have another computer to download files to and use to ...
3
votes
2answers
8k views

Unable to NFS mount from Ubuntu 14.04.1 LTS against QNAP NAS

Note, this is a cross posting question in the QNAP NAS community here: http://forum.qnap.com/viewtopic.php?f=35&t=96526&p=427018#p427018 Any comments and suggestions, as well as pointers to ...
1
vote
2answers
480 views

Is there a better way to programatically get the networking parameters from Linux OS?

I am writing some scripts which need to programatically get a lot of networking parameters from Linux OS. For example, the names of all network interfaces, ip address, netmask, MAC address. For ...
1
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2answers
856 views

Problems connecting to eduroam wifi - ubuntu touch

I am trying to connect to our university's eduroam wi-fi network with my Nexus 4 running Ubuntu touch (utopic latest build), but can't get past the first stage. I wonder if anyone can help please? I ...
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2answers
139 views

How do I know my MAC address? [duplicate]

how to check mac address of our system through terminal in ubuntu 10.04LTS ipconfig/all
0
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1answer
927 views

Unable to connect Internet to Xubuntu 14.04 with wired connection

Just installed Xubuntu 14.04 from usb, installed okay except that I cannot connect to internet. I'm connected via a Solwise Homeplug (Ethernet over wiring). Xubuntu says I have 'Wired connection 1' ...
1
vote
3answers
5k views

Getting URL of YouTube video with `youtube-dl` is slow, without downloading video

I want to get the URL using youtube-dl, and the "simulate" option -g that does not download the video. So I gave the following command: youtube-dl -g https://www.youtube.com/watch?v=k4JGSAmu4lg ...
2
votes
2answers
2k views

Ubuntu 12.04 + Wifi not working

i'm having problems connecting over wireless. At the moment, I'm using wicd. It seems to get stuck on "Verifying AP association...". Without wicd I can get the connection up and ping the Net - but ...
0
votes
2answers
1k views

Adding a 'network' USB printer

I have a HP Deskjet 1050a printer, hence the 'network' in the title. Its a bog standard USB home printer. I have it attached to my router (has a USB port in it). I have got it connected and working ...
0
votes
1answer
5k views

cannot connect using L2TP IPsec VPN Manager 1.0.9 on Ubuntu Desktop 14.04

used Synaptic to install L2TP have checked the dependencies are installed too. but cannot connect to work VPN when i click connect Ubuntu reports error 410 $> sudo ipsec verify Checking your system ...
1
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2answers
3k views

How do I get to work my Atheros AR9485 Wireless card in Ubuntu 14.04 LTS?

I've recently installed Ubuntu 14.04 LTS in my ASUS D550CA, and so far things have gone great. The only problem I've got is the Wi-Fi. It doesn't work. I've got an Qualcomm Atheros AR9485. I've ...
0
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0answers
13 views

Not able to get a wired/wireless connection using ubuntu 14.04 [duplicate]

I have a Dell Inspiron E1505 that was using ubuntu 12.04 with no problem after I made some changes to get wireless up and running. But after ubuntu 14.04 was installed from a DVD, the internet was ...
1
vote
1answer
758 views

how to set a static ip on ubuntu 14.04 which is runing on wmware workstation 10. [duplicate]

i configured master and slave setup. but some times after restart the machines wired ip address changes. how to set a static ip step by step. please help me thank you.
0
votes
1answer
302 views

Intranet LAN networking for office PCS

I am a Newbie in Ubuntu. I have 8 new PCs installed with Ubuntu 14.04, I am unable to do networking in them. I want to share files in all PC's Ubuntu to Ubuntu which includes sharing a drive and ...
0
votes
1answer
860 views

How to install spark in Ubuntu 12.04? [duplicate]

It shows error like file size is too large, I am using through my institution Internet connection its limited access. so I need help to how could install the spark??? My system is Ubuntu 12.04 32-...
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votes
2answers
477 views

Install reliance Driver software in ubuntu 14.04

I'm Using Huawei ec 150 dongle. I need to install driver software It is quiet a big task for begineers in linux. So i took this matter over here. EDIT Output of lsusb Bus 001 Device 001: ID 1d6b:...
2
votes
2answers
24k views

How to configure a network printer in Ubuntu 14.04 [closed]

I have 2 printers on a home WiFi network that are accessed by 2 desktops running Windows. I have a new laptop on which I am learning/trying Ubuntu 14.04. How do I configure things to access these ...
0
votes
1answer
136 views

Internet not working (local network works) after upgrade to 14.04

I have an internet connection that works through a proxy that requires username & password. After online upgrade to 14.04 from 12.04, I am unable to connect to internet, pinging to popular sites ...
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votes
2answers
204 views

I am not able to connect to wifi network

I had tried every code every idea every thing but I failed wireless driver Broadcom BCM43412, but when I checked pci-id it show not supported. my pci id is 14e4:4365 and chip id is BCM43142. I tried ...