LAN is short for local area network. Commonly refers to cable bound networks.

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Lan speed stuck on 100Mb/s

I cant get 1000Mb/s speed on my lan card. below is my specs : laptop : toshiba satellite L50-A, core i3 ###################### sudo ethtool eth0 Settings for eth0: Supported ports: [ TP ] ...
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56 views

Randomly losing connection but still in LAN

At work I am using ubuntu 12.04 on my laptop. Throughout the day I randomly lose connection to the internet, but I am still in the WLAN. Like, when I try to connect to google it will timeout and not ...
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154 views

found someone lurking in my LAN, not sure what to do next

I have DD WRT router with internal numbers all falling within 192.168.1.0/24. I was looking on my firewall records this morning and found someone at 10.10.109.100 got blocked from accessing port 5353 ...
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213 views

LAN not working while laptop on battery

My wired LAN is not working when my laptop is on battery - anyone out there who knows where to look for a solution? Strange thing is, that the LAN port is not entirely switched off, as there's light ...
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248 views

Ubuntu 12.04 causing modem to crash

I've noticed that when my Ubuntu PC is running my internet connection drops periodically. The router seems to be ok, but I notice that my modem drops its connection and takes about a minute to ...
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540 views

network profiles in ubuntu 12.04

I use a wired connection at home and in college. But at home i set my ipV4 settings to automatic DHCP whereas in college I need to manually enter the ip address, subnet and gateway and i also need to ...
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2k views

Why can't I connect to my network via wired DHCP connection?

I am trying to connect to the LAN of the university where I work, on a wired connection. The Internet is accessed by VPN after connecting to the network. On Windows 7, the computer seems to ...
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53 views

How can I make Ubuntu 16.04 tell that my connection to internet is limited

Since last few days I'm facing connectivity issues as my service provider is changing the fibre cables. As a result, my connection keeps toggling between " connected" and "Connected but No Internet". ...
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44 views

Help with gigabyte lan drivers

I got the gigabyte GA-970A-ds3p motherboard and I can not use a wired connection. Is there any lan drivers i can download for ubuntu 14.04.
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34 views

Invisible network within a LAN

I and another student at our school are involved with a project, given to us by the network administrator of said school. The project is to link three computers together, along with a server (the ...
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21 views

Is there a wake-on-lan indicator?

I'm using gWakeOnLAN, but what I'd really like is an indicator that will list my remote machines and let me send packets with a quick click. Surely one exists?
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68 views

Forwarding specific traffic to another LAN

There's a LAN of about 40 computers all running Ubuntu 15.04. There are two servers, both Ubuntu 15.04. One of the servers will act as a SVN repo server and other as a firewall-and-transparent-proxy ...
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55 views

IPmessenger not working in Ubuntu 14.04 LTS

I am working on Ubuntu 14.04 LTS. I have tried installing IP messenger on this and it showing error message like this, FileName:ipmsg.c Function:create_lock_file Line:157 Can not setup lock ...
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207 views

LAN is not working, Showing “Cable Unplugged”

I am using Lenovo B490 laptop and everything was fine. Few days back My friend used my laptop in my absence and after that I am not able to connect internet through the LAN port. It is showing that ...
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42 views

Is it possibile to put two transmission servers in a cluster?

I have two servers in two different lan's. The servers are connect with openVpn. Is it possible have the servers operate as a cluster with 1 server as master and 1 server as slave? They would both ...
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95 views

Proxy Server refuses connection after short period of time

I have a freshly installed ubuntu version 14.04 running on my Lenovo G780 (only later I learned that this Laptop may not be the ideal choice for a Linux system). Please note that I have never really ...
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136 views

SSH to host machine not possible from network

My system running Ubuntu 14.04 is a part of a subnet (192.168.3.XX) and everything used to work all fine; but recently, no other system on this subnet can access my machine, though I can access every ...
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623 views

How to fix networking after installing a new CPU/Motherboard?

Upgraded from an AthlonII to an FX-8350. This meant new motherboard/integrated LAN. I can't figure out how to configure the new setup to connect to my network. Any help appreciated. Also, as i ...
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889 views

Suddenly cannot access SSH on LAN

I had ssh running on my LAN server. Suddenly (not sure what I did), I cannot access the LAN server via ssh. When I try, it just hangs for a while with no response and finally comes out with a timed ...
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682 views

Suddenly cannot SSH into server from LAN, but can from outside LAN?

This is the weirdest problem I've ever had with trying to ssh into a server. Suddenly I can't ssh from my workstation to the server on the LAN. I can do so just fine from home, however. ...
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22 views

Ubuntu to Windows remote desktop problem

I just got a desktop PC recently, and installed Ubuntu. Problem is the desktop had to be put in the basement, and I have satellite internet so I have to watch my data usage. I have a laptop upstairs ...
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11 views

Stop access of LAMP localhost files through LAN

I have made LAMP setup on Ubuntu 14.04 system. My system is connected with LAN. Also other systems are also connected to the same LAN system. So in the router there are IP are showing like ...
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35 views

Can't resolve hostname by ip address over nslookup

Hope, someone can help me. I've already searched the web for hours, but I can't solve this problem: I've got an Ubuntu Server on my LAN. I can fully use it (samba, ssh, apache2, xmpp...) by using ...
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21 views

Unsupported device type 772 for “lo”

I don't know what's wrong happen to make eth0 stop working! Everything was working great, I installed php5 beside php7 on Ubuntu Server 16, modified /etc/network/interfaces and restarted machine then ...
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15 views

How to reduce Bandwidth using squid delay pools in a LAN

I have a LAN with user PCs that managed by linux squid proxy server. IP ranges : User1 category : 192.168.1.2-192.168.1.12 User2 catogory : 192.168.1.13-192.168.1.23 User3 catogory ; ...
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82 views

Not able to update netmask in ubuntu 16.04

I am trying to set netmask, as I am using Internet under a proxy connection. I am setting netmask to 255.255.255.0, then I save it. When I reopen it shows 26 as the netmask value.
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29 views

Cant connect to LAN after moving to an optical fiber connection

I use Ubuntu Server via VirtualBox. We have just changed the office internet to an optical fiber connection and the internet on UBUNTU stopped getting recognized, even though when I open the browser ...
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23 views

Can't acces Ubuntu Server 14.04 outsided LAN anymore

I am a lawyer not a Computer Science guy, please go easy on me! I set up an Ubuntu Server with a no-IP account and ownCloud. The first few days it was working great and I was able to access it from ...
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10 views

LAN Card behaving inconsistently

I have a system with Ubuntu Server 14.04 installed on it. The onboard ethernet port is faulty. As I want to setup DHCP server on it, I have installed two external LAN cards. I also have a leased line. ...
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34 views

Kernel problem, how to downgrade

I am using Ubuntu 15.10. uname -r 4.2.0.30-generic. But this kernel is installed partially with errors and my boot loader got default updated to that. I have Linux image ...
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12 views

Installing lan drivers (no linux versions)

Stuck with ubuntu 14.04 unable to work as the drivers for my lan are in a .exe and cant download anything onto the machine. I was wondering if their is a way i may install just the inf files or if i ...
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31 views

LAN port or LAN driver problem Ethernet Wirelan

I am having Ubuntu 15.10. yesterday after power shutdown I disconnected LAN wire from modem and connected to LAN port of Dell laptop. But my connection is not detected. I can connect through wifi. ...
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68 views

how do I block other computers in LAN like 'net cut' in windows

i used 'net cut' in school to block other computers in LAN. How can I do the same in Ubuntu? I am looking for a program or terminal commands.
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49 views

Connect network server location in Filezilla in Ubuntu

I am using Ubuntu 15.04 now. But i am facing problem to add my network path (Shared folder in my network) in the Local path while using Filezilla. SO is there any way to add these locations in ...
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19 views

rc.local getting invalid values from sysfs

I'm trying to get LAN cable status in rc.local file (ubuntu.14.04). But I'm always getting invalid value for the carrier, even if the cable is connected. echo $(cat /sys/class/net/eth0/carrier) If ...
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26 views

Unable to connect to 'openconnect' through LAN

I am trying to access 'openconnect' VPN through my WiFi and it works perfectly fine. The steps that I had followed were first "sudo /sbin/modprobe tun" and then second "sudo apt-get install ...
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16 views

2nd LAN Card is not working

I am new in ubuntu. I installed 14.04 with two LAN Card. One card is coming with motherboard and other one I used with PCI slot. After installing Ubuntu, I am getting two LAN card in the Network ...
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34 views

disable laptop touchpad and lan connection

I'm using Ubuntu 15.04 on ASUS K556UB, and now I have 2 problems with it: I need to work just with mouse because my touch doesn't work. When I connect the pc with LAN and wireless together, LAN ...
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26 views

lan messenger is installed but cant run on ubuntu 12.04

LAN messenger is installed, but it cant run in ubuntu 12.04 when i click on LAN messenger icon, it blinks 3-4 times in tray but can't run or execute. how to run it?
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19 views

establish messenger and file sharing facility between ubuntu and windows 7

there were many pc and clients in my organization. i want to establish messenger cum file sharing file transfer facility in between these pc and clients. but main problem is some of them having ...
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34 views

How to Chat over Mixed platform LAN network including PC and clients

In my organization, there were many PC and Client connected in LAN network which contain two different OS Windows 7 and Ubuntu 12.04. I want to establish messenger and file transfer facility in this ...
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9 views

How to set up opened samba

How do I configure smb.conf so all the users on my network can access it without a user name and password. My current smb.conf : [NAS] path = /media/k4li/FALCON2 valid users = readonly = no ...
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68 views

Lubuntu will not boot without a LAN cable attached

I have installed Lubuntu on an OLD gateway for my daughter. Had issues early on and had to add a few lines to the grub to get it to work. Specifically, I added "ro nomodeset acpi=off nolapic" So it ...
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22 views

intermittent lan connection

I have avoided asking this question for a long time because I think it's something simple, but I cannot seem to figure it out (I give up, and am asking the questions). I am new to linux/ubuntu. ...
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20 views

lubuntu networking

I have installed lubuntu latest version in my network systems which have 15 systems, problem is when I open my crm page in any of the system only one system get connected to it, remaining systems ...
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23 views

Making LAN setting static only works for a few secound

Well I have installed Ubuntu 14.04 in My computer and the network configuration for other computer in the network is Static so I configured it to assign its IP manually and it works only when I ...
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127 views

Test connection speed to the router using iperf without server-client

I want to test the (wired) connection speed to the router. iperf seems to be a very nice tool but it needs to be run as a server from one device and as a client from another device. Is there a way to ...
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67 views

Ubuntu 14.04 LAN keeps disconnecting

I'm running Ubuntu 14.04 on my PC. After I used a WiFi-Stick my LAN keeps disrupting its connection and after a couple of seconds it reconnects automatically. It really freaks me out. Output of lspci ...
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138 views

Samba on Ubuntu Server 14.04 LTS is not visible in the local net anymore

I set up Samba on my Ubuntu Server, I could see the server from the two Windows PCs in my home and I could share files between the PCs. When I restarted the system, I could not see the server anymore. ...
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291 views

Home network Speeds (LAN and Wifi) very slow, Internet download is fast

Good evening, I have a home network hooked up and an ASUS (RT-AC68U) Wireless-AC1900 Dual-Band Gigabit Router with CAT 7 running throughout my whole house. My server is wired, Windows 10 machine is ...