Managing and using network connectivity on a Ubuntu system

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How do I connect to my VirtualBox Ubuntu 14.04LTS from the host's public IP(or domain name)?

I've been having a hard time with this. It's probably been 3 days now... Anyway, I've set up my virtualbox on Windows7 with a bridged adapter (eth0). Installed LAMP server and it works. I can ...
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8 views

How do I view the nodes which are in my Computer's range in an ad-hoc network?

I am trying to setup a wireless mesh network by using a ad-hoc network. I need to know the IP addresses of devices which can be directly reached from my Computer. Using this information, I will be ...
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1answer
13 views

Questions about building a native IPv6 router/firewall

My ISP has kindly handed me a /64 prefix, and I'm building an Ubuntu router, as most of my existing equipment is too old to support IPv6. Using various articles, I've managed to get it mostly ...
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8 views

Can't change default port of a service (apache2 & postfix)

When trying to set up a server I stumbled upon a terrible problem: I can't seem to change a service's default port. I have tried to change Apache2's & postfix's default port and all I get (with ...
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9 views

how to open a port under Ipv4 instead of Ipv6

How I can open a port under Ipv4 instead of Ipv6 on ubuntu tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN - tcp 0 0 127.0.1.1:53 ...
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5 views

Force ubuntu to connect to automatically connect to open network with GUI license sign?

Probably a very unique issue, but my school uses an open wifi that requires connecting, typing into chrome "192.168.1.1" to get to the sign in page (because it never redirects properly on any device ...
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21 views

Laptop connected to wifi but no internet [migrated]

For some reason my wifi has decided to stop working. I can connect to APs, I can have excellent signal strength, but I can't actually load any web pages or ping anything. I know it's my laptop because ...
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11 views

14.04 - Unable to connect Windows PPTP VPN

I am trying to connect a Windows PPTP VPN. I created VPN connection through the Network configuration in the Settings. I configured VPN credentials such as gateway, username and password. Nothing ...
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1answer
15 views

Ubuntu 14.04 Server Startup just on WLAN

For some technical reasons, I need to have Ubuntu 14.04 Server started just with WLAN. That means, no Ethernet start up. If I do so, it always takes some more time on the start up. I mean this ...
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10 views

Ubuntu does not store Network Settings beyond Setup

Is it expected behaviour, that Ubuntu (14.04.2) does not keep ipv4 network settings i enter during setup, but instead tries to configure an ipv6 connection (which is not supported by my network, btw)? ...
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1answer
17 views

How to use a laptop as an external Wi-Fi adapter for another laptop?

I'm trying to use a program which needs two Wifi adapter. But I have two laptop which have only single wifi adapter. I'm planning to use B laptop as second wifi adapter for A laptop so I can use the ...
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1answer
26 views

Unable to connect to my Ubuntu machine using Putty remotely?

I am new to Ubuntu, I have it installed on my computer (not on a virtual machine) and I am trying to connect to my Ubuntu machine remotely through PuTTY. I am getting the IP address of the Ubuntu ...
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11 views

Wireless card disables after I suspend laptop.Says Wi Fi is disabled by hardware switch, no switch on laptop

When I suspend my laptop and turn it back on my wireless card shows hardware blocked but there's no hardware switch on my laptop, all I have is an airplane mode button. Laptop is an HP ENVY 17-k200. ...
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1answer
53 views

No UFW logs at syslog

I'm using here the UFW as a basic protection. When I'm using the wi-fi from the college I get some UFW block (which is normal, because the firewall is ON). But strangely, I'm not getting any UFW logs ...
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Ubuntu 14.04 Problems with downloading some .js and .css

I've got a problem with my Ubuntu 14.04. Some sites can't be downloaded completely. Chrome Developer Tools show that the problem is in extremely slow downloading of some (not every) .css and .js ...
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1answer
38 views

How to remove entries from /etc/resolv.conf?

I have a server configured with a static IP address. /etc/network/interfaces has its respective dns-nameservers and dns-search. But when I run resolvconf -u it gets another nameservers from an unknown ...
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13 views

How do I configure multiple networks?

How would I configure an Ubuntu server to use multiple networks? There will be two interfaces, eth0 and eth1. Essentially, there will be a private network (eth0) which has no internet access, but ...
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20 views

port forwarding in Kali-Linux [on hold]

I have a question involving Kali-Linux and port forwarding. I have no problem setting everything up in Kali-Linux (opening ports via gufw and preparing a metasploit attack just to check if its open ). ...
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2answers
28 views

WI-Fi issue, Adapter worked in installation but not anymore

I'm brand new to Linux (without a GUI at least) and I'm trying to run a home server. Couldnt get a hold of a copy of 64 bit Windows for my server so I went with Ubuntu, thinking I could figure out ...
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1answer
13 views

Configuring two internet connections with Dynamic WAN IP

I had similar problems with this question, the difference is my WAN IP assigned dynamically from the ISPs. So how do I try the accepted answer with dynamic WAN IP ? ps: Because I do not have enough ...
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20 views

folder with IP address for name in Documents folder

I'm using Kubuntu 14.04, with the latest updates. I have two user accounts set up on this machine: richard & me. I was in richard and using Dolphin to look for a file in me. I noticed a folder in ...
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1answer
45 views

What is messing up my system clock?

Ubuntu 14.04 desktop, 64-bit I came in to work this morning and noticed that the clock on my system was off by approximately 3 minutes, as compared to the clock on my phone. That seems odd, since my ...
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25 views

can't connect to epson network printer

I have an Epson nx625 printer/scanner connected to my netgear router with wifi. Ubuntu 14.04 sees the printer but when I install epson drivers it locks up, when I install generic drivers it works but ...
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What does 'deauth_pkt1 = Dot11(addr1=client, addr2=ap, addr3=ap)/Dot11Deauth()' mean? [on hold]

Can anyone explain to me what this means? deauth_pkt1 = Dot11(addr1=client, addr2=ap, addr3=ap)/Dot11Deauth()
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1answer
18 views

PPP Connection: Software Center 'Install' button is not active

I'm using PPP connection with Huawei Mobile Partner dial up software on Ubuntu 14.04. Problem is when I want to download software via Ubuntu Software Center. 'Install' button is not active just like ...
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23 views

Network manager failing to load etc/network/interface all messed up

I am having major hassles with my system, can't connect to Internet or share files, on boot I am getting the following fails: Configure network interface = fail Configure network device ...
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1answer
16 views

Port 2003 not open/listen and can't access data on Graphite

I'm on Ubuntu Server, and I've installed Graphite and shinken. First I'm trying to get working Graphite (desperatly) but without success. I've make a netstat to see if my port is open : netstat ...
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19 views

Hosting a Ubuntu Lamp Server on Virtual BOX

I have set up an Ubuntu server on my virtual box. I need to set up a static IP for Internet access for port forwarding on my router. As soon as I set a static IP I lose internet connectivity. (I'm ...
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23 views

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
16 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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35 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
24 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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27 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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22 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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4answers
53 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
25 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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1answer
23 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
24 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
92 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
42 views

Cannot access internet from WiFi except my home WiFi! [on hold]

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! UPDATE : I can ...
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19 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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20 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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12 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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14 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
27 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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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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36 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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20 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 ...