Managing and using network connectivity on a Ubuntu system

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Hosting a Ubuntu Lamp Server on Virtual BOX

I have setup a ubuntu server on my virtual box. I need to setup a static ip which will have internet access.( for portforwarding ) on my router. As soon as i m setting a static ip i am losing internet ...
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Installed Ubuntu 14.04 LTS, Wired and WIreless connections availiable, but no/ limited internet access

Greetings Veteran Ubuntu Users! I've tried to solve the issue on my own for the better part of the weekend, but some help would be most welcomed. I'm also new to Linux based-OS. Onto the issue... ...
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2answers
10 views

Ubuntu 14.04 Hotspot automatic creation

I'm using the default hotspot interface in Ubuntu 14.04 through the network manager, but I want to automate the creation of the hotspot when the laptop is connected through Ethernet. Is there at ...
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1answer
22 views

Internet Fluctuates after Fresh Install of 14.04

I had terrible problems with my internet speed when I was on windows, and a hope for fixing it was one of the big reasons for switching to Linux. When I switched to Ubuntu 14.04, everything was ...
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1answer
14 views

VPN Not working, PPtP

today I was trying to set up a VPN. I have all the credentials and everything entered, but every time I try to connect, it says this. Here are the pictures for the steps I take to recreate this ...
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24 views

The /etc/network/interfaces ignored in image tgz

Please, i have edited the file /etc/network/interfaces and added: auto lxcbr0 iface lxcbr0 inet dhcp bridge_ports eth0 bridge_stp off bridge_fd 0 bridge_maxwait 0 i have the saved an image ...
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17 views

Host website, share files, ubuntu 12.04

I am just getting into the whole programming/networking "thing", so after making my first <HTML doc!> :) I want to put it online of course! So should I take the AiCloud down and make a static ...
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3answers
38 views

Ubuntu 14.04 dns resolution stopped working after minor update

Yesterday the internet connection was working correctly and I accepted software updates.Today I can reach the default gateway, the dns servers (8.8.8.8) but no internet address such as www.google.com ...
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1answer
22 views

IP Address Linux Containers

Please, i have a problem i try to find a solution since days i'm a beginner with linux (networking) In our cluster (10 nodes), we deploy the same image file on each node. So each node has a different ...
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12 views

Hosting a tomcat site - port forwarding

I have a desktop running a tomcat site (jira). When I go to 192.168.1.108:8080 from a device on my network I can see the site. I now want to be able to access it through internet. For that purpose I ...
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2answers
21 views

Can I change the SSH deny/allow order?

I am trying some ssh tricks and stuck on a server. Is there a way to make ssh hosts.deny read before hosts.allow?
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2answers
79 views

Ubuntu 14.04 : Cannot access internet via terminal

I am able to connect to both wired and wireless networks and able to browse via a browser. So I don't think there's any network issue. However I cannot run any internet based command from my terminal ...
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1answer
29 views

Cannot access internet from WiFi except my home WiFi!

I can't access internet from anywhere except my home! I can verify that the internet is working, I can connect and browse through my Android. Also, I can ping 8.8.8.8 and 8.8.4.4! (This may not help, ...
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15 views

iptables: write UDPv4: Operation not permitted (code=1)

I am trying to set up a stateful firewall using iptables. It is for use on my desktop machine. Below are the contents of my firewall script: #!/bin/bash iptables-save > ...
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16 views

Ubuntu 14.04 can't connect to my specific modem's wifi

My system connects to other WiFi networks without problem, it also connects to my modem with wired connection. But when I try to connect through WiFi, it attempts to connect for a while, the WiFi ...
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4 views

Cloudstation unable to connect to external address/quick connect

I have just done a fresh install of Ubuntu Gnome I installed Synology Cloudstation app however it is only able to connect with the internal IP address of the NAS, in contrast I have the windows ...
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9 views

Overlapping channels in WMN [on hold]

can any one explain to me what is overlapping channel in wireless mesh network? and how they solve this problem in Summary?
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0answers
13 views

Network connection problem - disconnects often

im able to browse for sometime when i connect my internet, after some time probably 20 min im not able to browse or download stops and everything in connecting state. but the network seems to be in ...
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10 views

Check if DNS-server is correct configured

how do I check if my DNS server is correctly configured? when I do this command without editing /etc/resolv.conf to DNS server's IP host 192.168.0.X I get host X.0.168.192.in-addr.arpa not found: ...
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1answer
21 views

Ubuntu 14.10 Network auto connect-disconnect problem after hotspot setup

ubuntu 14.10 showing auto connect- disconnect network after creating wifi hotspot. Please help me.
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16 views

creating a Wi-Fi hotspot without losing my internet connection

I am create a Wi-Fi hotspot using my computer(Ubuntu 12.04) from a mobile broadband connection. When I do this, I want to be able to access the internet myself and also other computers that join my ...
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25 views

adding linux client to windows active directory domain

We have Ubuntu 14.04 LTS as client in virtual manager. I have to join it in a network with a system running Windows server 2008. How can I join a Windows Active Directory?
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15 views

Nautilus “Files” window shows nothing when browsing NAS

I've just bought a NAS and I'm experiencing the following weird behaviour on Ubuntu - on two different machines, one running 14.04LTS 32bit over wifi, the other running 14.04LTS 64bit on a wired ...
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8 views

Wireless does not work on some applications on 14.04

I am running 14.04 on a Dell Inspiron 1200, so I have to use a wireless card (pre built-in WiFi). Using the card works on MOST all applications - but when I try to use it to connect Seti@Home (BOINC) ...
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1answer
18 views

Configure UFW to allow only established and related conections (on IPv4)

I want to configure ufw to deny everything except the related and established connections. On iptables I usually did : -P INPUT DROP -P FORWARD DROP -P OUTPUT ACCEPT -A INPUT -m state ...
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1answer
27 views

Ubuntu can't detect wifi, even after reinstalling the driver (BCM43142)

Recently after fiddling a bit with routers in my apartment I discovered that ubuntu can't detect my own home network anymore. It had no problems doing it for last 6 months. What I already did: sudo ...
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1answer
41 views

Installed Lubuntu alternate 32 bit ver 14.04.1 on old Lenovo S10 - no wireless

I am completely new to lubuntu / ubuntu. I've installed "lubuntu 14.04.1 alternate" (CD version, as I could not get laptop to boot from usb) successfully on old Lenovo S10. It will network via ...
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1answer
16 views

arp-scan command displays (Unknown)

this command sudo arp-scan --interface=wlan0 --localnet display the following results: 192.168.1.1 *:*:*:*:*:* D-Link Corporation 192.168.1.101 *:*:*:*:*:* (Unknown) why i can't see the name ...
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2answers
27 views

How to setup Multi Dhcp Server

I'd configure isc-dhcp-server and its works fine but now we are running out of range as we are exceed 255+ active devices. Current configuration: eth0: 192.168.0.1 I want to setup following things. ...
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11 views

Connectivity Problem after upgrading to Ubuntu 14.04 LTS

I use my mobile phone (Vodafone 2G) to access internet on my laptop (Dell Vostro 1015) as i was using Ubuntu 12.4 for long and only now i have upgraded to 14.4.LTS. the problem is i am not able to ...
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12 views

How to install netgear wnda3100v2?

I have a network adaptor (Netgear wnda3100v2) and I want to install it on my Ubuntu 14.10 machine. I have tryed tutorial I found online but none worked.
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Ubuntu Networking - <200mbps Need Help

after searching for hours on this site and google I have yet to find an answer to my question. Hoping to get it answered here. I've recently started using Ubuntu and Linux in general. After finally ...
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25 views

WiFi Stops Working On Gateway Z Series (Ubuntu 14.04)

After several minutes there is no internet connection on my desktop computer via Wi-Fi. Ubuntu doesn't show any kind of message that my WiFi was disconnected nor is there a signal drop, but suddenly ...
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how to make an ftp server of user files for lan network and how to access it via ftp client?

I want to setup a ftp server on laptop to access the files on other machines which are on same lan network. Can anyone help me with a guided method with IP creation for lan and internet(if possible), ...
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1answer
61 views

Ubuntu Phone network selection

hope everyone is well. I recently bought the BQ Aquaris E4.5 Ubuntu phone recently, only had it 2 days and so far so good, well until now.... In the past all my phones you had the option to have ...
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I am using Lubuntu I want to connect my machine to local area network

I am using Lubuntu (on cubietruck) and I want to connect it with my laptop (windows 8). They are on same network through WIFI. How can I do that can anyone help? I want to share my files (put them ...
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45 views

How can I connect via ssh to my ubuntu phone?

I 've tried to connect via ssh to my phone, but the phone offers only authmethod_is_enabled publickey and no user-password method. I've also changed the sshd_config in: PasswordAuthentication yes ...
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5 views

AX88179 Ethernet adapter not working properly

I recently bought an adapter with the ASIX AX88179 chip in it. The adapter seems to work, but after about one minute it gets terribly slow. I have already tried this and this solution to no avail. ...
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1answer
40 views

Why is wget much faster than downloading via Chrome?

I tried to download a gigabyted file where I got 200~300 kb/s in my browser but the same link worked in wget over 6MB/s...Is there some magic behind the command?
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1answer
45 views

Ubuntu 14.04 Lts wifi not working

My Wifi is connected perfectly with a good signal strength, but sometimes it just won't get connected or the connection is very slow and not working properly. The connection on Windows 8 on the same ...
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0answers
12 views

How to automatically connect to wifi connection after entering keyring?

After starting up ubuntu, I need to enter my keyring password, which I don't mind. What I do mind is that it is not connecting automatically to a wifi connection stored in the keyring after entering ...
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1answer
31 views

Is there a way to automatically pseudo-randomize a MAC address?

It is possible to track a person by the unique MAC address of their wireless card. For Android devices, there's an app called Pry-Fi that, among other things, constantly pseudo-randomizes one's MAC ...
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1answer
17 views

Unable to initialize mon0 interface

When I started to recover the wifi key using reaver 1.4, after writing the command root@kunjesh-Ideapad-Z570:~/reaver-1.4/src# reaver -i mon0 -b <USSID> it is giving the error Reaver v1.4 ...
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4answers
37 views

Disable every network permanently

I have Ubuntu installed on an USB device, I need the system isolated from any network (LAN, wifi, bluetooth, etc.) permanently. I read a lot of suggestions but some are user-related, other disable ...
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20 views

How do I turn off background probing for wireless networks?

It has come to my attention that it is the common behaviour for Wi-Fi devices to announce all the networks they know, thus revealing a lot of information about the owners' history (work, home, travel ...
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1answer
20 views

A new connection is generated instead of using the new settings

I am trying to set up a static IP address using the nm-connection-editor tool. I select the currently-used wireless network, click edit, go to "IPV4 Settings", click add, enter a valid IP address, ...
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Ubuntu can see my networked Macs but my Macs can't see Ubuntu

Q1. How do I share my Trusty computer with my Macintoshes? Samba? Ftp? Sftp? maybe my Ubuntu Trusty install has file sharing permissions that are incompatible which I'm not setting up correctly. And ...
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Ubuntu 14.04 wireless network very slow and unstable (HP laptop)

The wireless connection on my laptop has been very slow, both at work and home! I have to constantly power off and on the wireless adaptor, to make it work! Here is the information regarding my ...
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I am having issues properly configuring a secure network

I ran a script in order to provide as much information as possible because I really need help. I would greatly appreciate it. The information the script yielded is in this link: ...
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How can I rise up mobile network performance under Ubuntu to Windows level?

... or What can be causing less effective broadband networking on Ubuntu? Ubuntu 14.04 x64 ping: 25-70ms, download: 2Mb, upload: 3Mb compared to Windows 7 x64 ping: 25ms, download: 4Mb - 5Mb, ...