Managing and using network connectivity on a Ubuntu system

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sshuttle and create_ap don't work together

I am using sshuttle to forward all my traffic. ./sshuttle --dns -r root@remotemachine 0/0 All applications work fine and their traffic is forwarded through this remotemachine. But, when I try to ...
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How do I get network connection and WiFi working on Dell Inspiron 1520 and Ubuntu 12.04?

When I booted from the USB key, it popped up a notification for additional drivers, and then it installed an ethernet driver so at least the ethernet cable worked. After I installed and booted from ...
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1answer
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the packet flow from a network interface to a local process? help!

I'm read Linux Iptables Pocket Reference. So I do not understand the figures presented. It says that packets travel through chains, and are presented to the rules one at a time and in order. Then ...
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15 views

Problems with wireless

I'm a ubuntu beginner user. I thought to have some problems with the driver of my network interface problems but apparently there weren't any ( wireless driver ). Unfortunately I went here: Wireless ...
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Can I kick users off my dongle?

I have an Osprey dongle from ee and use nethogs to regularly see who is using it and how much data is being used. Is there any way that I can disconnect users or block certain ip addresses?
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Ubuntu server content security

I am learning server side administration ... I can across one requirement where I want to setup a local server(preferably Ubuntu server) such that it connects to computer on same network. My ...
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'iptables -a' just hangs and never returns?

I'd like to redirect requests in on port 80 to a service I already have running on port 8443. I swear I've used this command before on other systems and it's worked: sudo iptables -A PREROUTING -t ...
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15 views

ubuntu 14.04: cannot connect to WiFi using TLS and WPA2 Enterprise with certificate

After the latest updates to my Ubuntu 14.04 I can no longer connect to corporate WiFi using TLS and WPA2 Enterprise with certificate. I did some research, and this bug (for Ubuntu 15.04) is the ...
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19 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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TRIED EVERYTHING ON THE INTERNET: Upgraded to ubuntu 15.04. No wifi interfaces [on hold]

$ lspci -nnk | grep 0280 -A2 07:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01) Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016] ...
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Wireless Internet about Ubuntu 14.04.3 LTS in MacBook Pro (mid 2012 13')

I am a newer in Ubuntu. Here is the information about my firmware. 02:00.0 Network controller [0280]: Broadcom Corporation BCM4331 802.11a/b/g/n [14e4:4331] (rev 02) Subsystem: Broadcom ...
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2answers
17 views

Wifi connections not showing in menu (ubuntu 12.04)

Not getting the option to select or even able the wireless connections in networking tab. Have also tried to restart the system couple of times and still not working. Following are the output on ...
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1answer
12 views

Remove entries from network drop down menu 14.04

When I click the little wifi icon in the top right of my screen, I can see: 4 identical entries for "New Mobile Broadband (GSM) connection..." 2 identical entries for "iPhone Network" ashlee's ...
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10 views

Force VPN Connection

I have a Ubuntu virtual machine (using Oracle Virtual Box if that means anything), and I am trying to figure out how to setup my VPN so that I can never (never never never..) connect to the internet ...
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1answer
25 views

Do I need to reinstall Ubuntu 14.04 LTS if it becomes unstable? [on hold]

I have a Compaq R4000 thats configured with a dual boot winXP/ Ubuntu 14.04. It worked fine until I decided to give a try, to make the wireless adaptor work under Ubuntu instead of connecting the UTP ...
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2answers
14 views

How do I establish 'wireless internet connection sharing' via ethernet to Raspberry pi [duplicate]

I have searched this subject in great detail and still not able to connect my raspberry pi to the web via Ethernet. I have no problems making ssh contacts with the pi. I used this video as a start ...
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1answer
18 views

Why can't I log in to my Samba share on my home network?

Recently I've had to reinstall Ubuntu Server 15.10 64-bit after wiping my home server due to an insecure password-only SSH server sitting on it for too long. Now, I'm plagued with setting my machine ...
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13 views

How to restart all network services?

Occasionally when waking up my laptop, I need to run: sudo service network-manager restart In order for wifi to work. However sometimes I have to restart completely, so there has to be some other ...
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Ubuntu MATE 15.10 no network connection when coupled with OpenVPN

Good morning everyone, Apologies if this has been asked before - to my best understanding knowledge and research, there is nothing that answers this issue... that I can understand with my limited ...
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1answer
26 views

VPN between two ubuntu 14.04.3 servers

I have a Server at home which has an Ipv6 but no ipv4 (because my provider uses DS-Lite). I also got a vServer wich has an static ipv4. Now I would like to setup a vpn service on both servers and ...
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9 views

Venue 11 pro not Reading Wireless Card

I just installed Ubuntu onto my Venue 11 Pro (which is a hybrid computer). After installing, I tried to connect to my WiFi and the option was not there in the drop down menu or network settings. There ...
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Ubuntu 14.04 unable to connect to internet after uninstalling transmission

Internet stopped working after I uninstalled transmission torrent client. First wifi stopped and then wired internet. I tried following a couple of suggestions from different questions here but that ...
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8 views

point the domain to the real folder when there is another config use ssl certification

i have an ubuntu server on digitalocean i'm using apahce2 the problem is i have three domain one of theses config file has ssl certification and when i'm on the browser and i use https with any ...
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1answer
22 views

Are There Any Wireless Adapters for Ubuntu That Work “O.O.B.” and Meet These Requirements? [on hold]

I have bought a wireless adapter, but I just can't get it to work in Ubuntu, even with ndiswrapper! Does anyone know of any wireless adapters that: Are not buggy Work "Out of the Box" Support 2.4ghz ...
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wifi ath9k does not work with ubuntu 15.10

I bought a new laptop lenovo ideapad 300-14isk, and I can't use the wifi. i installed ubuntu 15.10 and updated the OS via Ethernet. see uname -a : Linux laptop-Lenovo-ideapad-300-14ISK ...
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27 views

How to detect irregular activity in LAN/PC?

As I've just set up nice SSH server and everything so I was wondering if there are any ways to monitor my computer and my LAN from any suspicious/unusual activity? Additional information: The lower ...
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1answer
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Ubuntu 14.04 Juniper network-connect crashes right after starting

My juniper network-connect tool crashes just after launching. It used to work until last week and has suddenly stopped working (probably due to recent update). $ ...
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1answer
19 views

open vpn gone after command in Private Tunnel faq

i was making new connection with openvpn by documents on privatetunnel.com and at the end of docs i enter this command in terminal and after that openvpn in broken. i remove open vpn with apt-get ...
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16 views

Add Static route to Ubuntu on a Digital Ocean VPS

I am trying to add a static route to a remote subnet from a digital ocean vps (ubuntu 14.08) but everytime i run the following command I get the error: "RTNETLINK answers: Network is unreachable" ...
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15 views

System Wide VPN?

I am using Earth VPN and I am already connected to VPN. I am unable to use Steam. It says no network. Network uses proxy and UDP port is blocked. In Windows, when I get connected to a VPN as an ...
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13 views

Networking problem with USB wi-fi RTL8188EU

I have a power-line carrier connection that drops from time to time and taking a minute to reconnect. Thus I want to use a USB wi-fi as a backup. The driver it uses is RTL8188EU and since that ...
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WiFi stopped working after updates 14.04 LTS

First, my bluetooth was not working so I tried the solution suggested here but still devices are not able to pair. Then after this, my WiFi has stopped working. ########## wireless info START ...
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23 views

How to provide a network address to a DSL connection in Ubuntu?

I'm a new Ubuntu user(Desktop OS). As I've switched from Windows 10 to Ubuntu 12.4 just before few days. I'm unable to set up a DSL connection in Ubuntu as I can't find any option to provide a ...
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21 views

Ubuntu 14.04, /etc/hosts file entries not working and referring to wrong ip

I am on Ubuntu 14.04 LTS, I have added few host machines to the file /etc/hosts as below: 192.168.2.12 machine1 192.168.2.13 machine2 192.168.2.14 machine3 These machines are in the same network ...
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Ubuntu 14.04 LTS Keeps disconnecting (Wifi)

I have a problem of where every once in a while Ubuntu seems to disconnect from my wifi Network. Then when I click to reconnect it just stalls and never does. I've tried the solution posted here, but ...
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2answers
46 views

No ethernet on Ubuntu 14.04 LTS

My ethernet has stopped working, leaving me with wireless only: This seems to be a common problem but I have yet to find a fix. Standard diagnostics $ ifconfig -a eth0 Link encap:Ethernet ...
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2answers
33 views

Ubuntu 15.10 with Windows XP on VirtualBox

I'm using Ubuntu 15.10 64 bit and Windows XP in VirtualBox. The virtualization start but in Windows XP there is no connection. In Wbuntu I'm using the Ethernet connection from Vodafone Station. The ...
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26 views

Qualcomm Atheros AR8161 - Ethernet connection doesn't work

Today I launched Ubuntu 15.10 from bootable pendrive and tried to connect to the Internet using wired connection - it doesn't work (same on Ubuntu 14.04). Wireless connection is fine. I've tried a lot ...
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1answer
21 views

How do I substitute network addresses? [duplicate]

Right now I have a network server that I frequently have to SSH into. Instead of typing: ssh fox@192.168.2.24 I want to be able to say: ssh fox@srv And that it would SSH into the server at ...
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18 views

Is possible to load remote desktop raspberry via server?

my server has public ip and on router is configured redirecting all packets to my server. Is there any way to connect to raspberry pi (which is in same network, also connected via ethernet) remote ...
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28 views

Network is not connected

After updating some data my system is not shown the Wifi option any more and it does not detect the network if I insert the wired cable. I already tried these attempts: ...
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2answers
49 views

wifi connection keeps dropping in Ubuntu 15.10 - RTL8821AE

I recently purchased a lenovo ideapad300 and installed a dual boot system. the wifi for windows 10 works seamlessly while its problematic in ubuntu this is the output for lspci -knn | grep Net -A2 ...
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1answer
33 views

Ubuntu as a router for Video conference purpose

my setup: Ubuntu 12.04 eth0 192.168.10.17 eth1 10.10.1.27 video conference mcu 192.168.10.52 configuration done: net.ipv4.ip_forward=1 oot@its-PRODiiGY-G31:~# ...
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Ubuntu server 14.04.03 LTS -32bit problem with apt-get update

Hi my ubuntu server has problem to install packages and use the command sudo apt-get update Every site it tries to connect to I got a fail. But the server is connected to the network and I have a ...
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19 views

edX.org login issue with Chrome on Ubuntu 15.10

I am using Ubuntu 15.10 with latest version of Google Chrome. But Signin on edX.org does not work, after clicking "Sign in", it shows We couldn't sign you in. An error has occurred. Check your ...
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Recover Server from recovery mode(firewall closes ports)

My server( Ubuntu 14.04 - Plesk - RAID1 ) is now in normal mode. Almost all ports disabled by firewall as plesk port 8443, so plesk login panel is not opening. Also Website is not opening. ...
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managing an LTSP Edubuntu server with thin clients

Hello there I am hoping some one can help me. I have set-up and Edubuntu LTSP server in my schools IT room which is working fine as it should, but I wish to be able to turn the server login screen to ...
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28 views

Wireless Authentication through Website

Our WiFi network at our university requires you to go to a website and enter a username and password to authenticate. When I try to connect to the WiFi network I get the "Wi-Fi Network Authentication ...
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Cannot Ping Outside from Guest throught host

I set up 2 virtual machine with the following IP: 1) IP: 192.168.20.50 SM: 255.255.255.0 Gateway: 192.168.20.100---Connection type=Bridged; 2) IP: 192.168.20.100 SM: 255.255.255.0 ---Connection ...
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1answer
41 views

How do I secure my Ubuntu? [on hold]

I am not pleased with the Ubuntu operating system. I was told by many "gurus" that Linux across the board was completely secure. Since I installed Ubuntu, which as an OS is great, I have set up ...