Managing and using network connectivity on a Ubuntu system

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Ubuntu server connecting to VPN

I'm trying to connect a computer running ubuntu-server to an L2TP/IPSec VPN server. However, the only information I can find is for the Desktop edition. I want to connect all my servers to one ...
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Connect Internet in ubuntu Laptop to linux mint Desktop - Has Crossover Cable

I need to share the wifi internet of my ubuntu laptop to my linux mint desktop , I have a cross over cable. ( Connecting desktop to router is not an option) I am able to ping my laptop from my ...
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Can't read permanent MAC and adapter has no association?

I'm using a Rosewill RNX-n180ube USB wireless adapter on Ubuntu 12.04 64x. I've found two things to be strange that I want to fix. To start, when I put the connection down to use mac changer I get ...
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create range dhcp and give guest static IP adress

Hi i need some help with setting up my ip-addresses for my vm guest and im kinda lost here. To make it more clear for me lets say i have 10 ip-addresses (192.168.1.0 till 192.168.1.10) and i want to ...
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Problem with NIS configuration

I tried to configure NIS in a server and a client both running Ubuntu 14.04 following this guide and this official guide. After a reboot the client machine got locked with this message several times ...
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1answer
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openssh: Permission denied

I am new to ubuntu and just started to configure my first ubuntu server. The problem is with openssh. I made openssh server using tasksel. Forwarded port 22 on router to Server IP. In the local ...
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TL-WN881ND disconnects within a minute of use

New to ubuntu, need some help with wifi. I've gone through two TP-Link usb wifi adapters (AC600, 'archer', was never supported) and TL-WN727N (appears to have the newer chipset which is as of late ...
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wifi hacking commands not working, airmon-ng not working ? [on hold]

im using a dell inspiron 15r 5537 laptop with win 8.1 x64 .I have installed vmware workstation 10 and created a virtual machine for Backtrack r5 3 ubuntu..i am having trouble with the wireless card. ...
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Is there an app which I can check the temperature of my PCI network card?

I have tried Hardinfo and sensors, but they don't look to meet what I'm looking for.
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Domain Name Server & hacking

I purchased an Apple desktop computer for my personal use. I am the only person who would be using it, & my primary use was for my own artwork & photo editing. This is my first computer & ...
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how to Set up a network in 14.04 in a VM

I have installed 14.04 Ubuntu in my VM, after log in, I cannot connect to internet. Neither WiFi nor Ethernet, tried all possibilities. PC configuration Dell inspiron, chipset Intel i5...
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Can't reach server on eth0 when connected to OpenVPN on tun0

I have a desktop (Utopic) and a home server (Trusty) connected to a home router. The router is set to forward some ports to the server. When I connect the server to an OpenVPN provider (on tun0 ...
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how to connect to gateway using Knoppix [on hold]

I have been trying to connect my pc to my router. When I ping it, I get "destination host unreachable". I've statically assigned ip. Included below are the results of my diagnosis. If anyone can ...
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Cant connect to other networks

I have a HP laptop running Ubuntu. I was able to connect to my home wireless network without any problems. When I tried using it at work, I couldn't connect. I can click on the network desired, but ...
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What is wrong with my network card? [on hold]

I installed Ubuntu 14.04 LTS in my laptop. It can connect the Internet in my working space in Ubuntu OS, but it cannot in my residence. I don't know why. In windows system, the laptop can connect the ...
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snmpwalk -Of does not display textual OID

We are having problem running this snmpwalk on Ubuntu server 14.04. snmpwalk -v 2c -Of -c public localhost Or snmpwalk -v 2c -Of -m SNMPv2-MIB -c public localhost Both of them do not display the ...
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Can't reach my cloud from internet

I installed Openstack on a VM with Ubuntu, now i want to reach my cloud from internet, someone can give me some tips? I'm not so pro on network managing.
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1answer
25 views

12 ubuntu PCs in LAN : None getting connected via Samba

Well i know this is not a new question to this community but the problem is surely very new I have got 12 pcs in our office which is ubuntu based. All of them are connected via lan wire or wifi. ...
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Cannot access some smb share

I was working in windows domain from local Ubuntu account and accessed all windows shares by typing every time my windows login\pass Then I joined my machine to our domain and started to use my domain ...
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Ubuntu doesn't connect to ethernet, it works only on second connection

I have ubuntu 14.04 running on a lenovo w540 About a month ago suddenly I had no ethernet connection, At the begining it worked only if I type sudo dhclient -v eth0 I played a little bit, and re ...
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Reliance Auto Login Help

i want to run this script https://github.com/pteek/reliance-auto-login-script but i get this error in lubuntu " Traceback (most recent call last): File "./reliance-login.py", line 27, in ...
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ubuntu guest network issue

On my Mac host, in Virtualbox->Settings->Network, I chose Bridged Adapter and en1 Wi-Fi (Airport) interface, check marked Cable Connected. On the ubuntu guest, eth0 is assigned ip address in the same ...
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Unstable wifi problems with PAU06 usb internet and ubuntu 14.04

I'm using the Panda Wireless PAUD6 usb internet adapter and I'm having problems keeping a consistent connection. It seems to go out frequently and sometimes I have to remove the adapter and plug it ...
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Cannot Connect via Wireless Router, but can connect via Ethernet

Hope someone can help. I just installed Ubuntu 14.10. Everything is okay, except it does not recognize any wireless networks. I can connect with no problems via wired Ethernet. I did install " ...
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IBM T500 pro/wireless 5100 AGN wireless card blocked ath5k

First, I am going to reinstall and use the try than install etc. I still would like to understand why this happened and how to maybe fix it for the future. When I was testing out what versions of ...
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Ubuntu 14.10 - Lenovo E420 - Wireless is not working

Earlier till ubuntu 14.04 the wireless was working for lenovo thinkpad E420, in ubuntu 14.10 it stopped working. Earlier for ubuntu 12.10 Modified /etc/modprobe.d/blacklist.conf and put an entry near ...
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Ubuntu 14.04 Internet connection sharing questions

first up im pretty new to ubuntu/linux in general. I have a ubuntu 14.04 server with 2 nics in it. eth0 (with subnet 192.168.0.0) is connected directly to my router for internet and eth1 (192.168.1.0) ...
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Wifi gone after installing backport of ath10k

......Hello I got a situation when I tried to install the ath10k driver for a 802.11ac supported wireless card by installing the backport releases. My system is ubuntu 14.04, and my current kernel ...
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Mount Windows File Share and acces them on ubuntu 14.04 server

I have created a windows file share windows server 2012 on one of the data centre and i want to access the file share in another data centre on ubuntu server 14.04 I am able to ping both the machines ...
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1answer
25 views

asus x550c wifi not working in ubuntu

I have ASUS X550C laptop i have installed ubuntu 14 but wifi is not working it is not showing wireless option in the network settings product: MT7630e 802.11bgn Wireless Network Adapter .plz help i ...
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28 views

Cant have both wireless and wired connections enabled at the same time

I have installed Ubuntu 14.10 recently and I have a problem with accessing my storage server via eth0 and connecting to Internet via wlan at the same time. I have to disconnect one of them to use the ...
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How do I configure firewall or proxy setup on Ubuntu 14.04?

I can't access Firefox browser and with Terminal command line problem detected proxy. How I can solve this ? . see screenshot
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How do I configure global internet connection on Ubuntu 14.04?

My broadband connection is OK !, but Firefox showing me message after browsing "If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web" ...
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Creating and Sharing an encrypted drive and be able to access it from a network

I hope that question made sense! Here is what i am trying to do. i have an Ubuntu 14.04.1 server/htpc/desktop. I use it as cloud storage and to stream to my tablets. It has two physical drives and i ...
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Facebook not working in all browsers in Ubuntu 14.04

I can't load facebook in all of my browsers in Ubuntu 14.04 I don't know where the problem occurs. I already changed IPv4 to 8.8.8.8 but still doesn't work. And also I could access on facebook only ...
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1answer
9 views

How do I use Juju local with a firewall?

While using ufw (Uncomplicated FireWall) and I noticed that the local juju machines were stuck in a pending state. $ juju status environment: local machines: "0": agent-state: started ...
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Wireless incoming data stalls for 6-8 sec every 2 minutes

I use Ubuntu 14.10 on a desktop and my wireless adapter is TP-Link TL-WN722N. My internet connection seems to work fine (it uses all available bandwith which is ~6-10Mbps). Although every 2 minutes, ...
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48 views

No Internet, but Wifi connection after Update to Ubuntu 14.04 (64-bit) from 13.10

I updated recently to 14.04 from 13.10, everything seemed to work fine, but after the second reboot the system connects to the network, but no internet is working. I tried already plenty of solutions ...
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1answer
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How to fix gsm modem LTE connection lacking download?

I've recently bought ZTE MF820D USB GSM modem especially for the LTE feature, although that's the only mode I'm having problem with. EDGE and UMTS are working fine, but after a while the mode is ...
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Openstack: access project from internet

I'm trying to connect my private Openstack Cloud to a CLoud Management Platform (Ecmanagement). I need the Api User, the Api Key, the Tenant Name and the URL of my cloud. Now, im a novice on both ...
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Ubuntu UI Toolkit's interaction with my device fails due to SSH protocol capabilities mismatch

Testing my device's (nexus 4 running latest from devel-prosed) connection from SDK->Options->Devices->Test I get: Connecting to host... SSH connection failure: SSH Protocol error: Server and client ...
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Ubuntu 14.04 How to forward LAN network through wifi hot-spot?

I am trying to share my LAN connection via eth0 through a wifi hot-spot (wlan0). I used hostapd to start the configuration but all the tutorials that i have found need a dhcp server installed. Can ...
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1answer
164 views

/var/log suspicious entries

For fun I tailed /var/log/auth.log (tail auth.log) and there were many of the following: sshd[16225]: Received disconnect from 203.100.83.32: 11: Bye Bye [preauth] The ip appears to be from ...
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Couldn't Configure SNMP in Ubuntu

I'm trying to monitor Ubuntu server 12.04 via Solarwinds sever which requires to enable SNMP on the Ubuntu. I update the following line in the /etc/snmp/snmpd.conf : rocommunity secret 10.0.0.0/16 ...
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19 views

Turn off Networking

I have 14.10 running on a Lenovo Yoga laptop. The Yoga has no ethernet port -- only USB. However since my modem has both ethernet and USB, I can get a wired connection from USB-laptop to USB-modem. ...
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Ubuntu 14.04 can't detect wireless card

I'm running Ubuntu 14.04 on lenovo yoga 13. Previously my wireless was working correctly, but only after running a script to fix the wireless: cd /opt/rtl8723au-master make clean make sudo make ...
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Ubuntu Network problem after update?

Sorry for the long post but I've been doing a lot of research. I run a APRS Amateur Radio Internet gateway that relays positonal information from a HF radio to internet servers. The software I'm using ...
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no wifi in ubuntu 14.04 with MT7630e 802.11bgn Wireless Network Adapter, I have already tried the 'supposed fix'

Can't get Wifi to work on my Asus laptop with my MT7630e wifi card. I have already tried this fix: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1220146/comments/125 but without a solution. I ...
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52 views

How can I get my broadcom wifi card to work?

I have a BCM43142: 01:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01) Subsystem: Lenovo Device [17aa:0611] Flags: bus master, fast devsel, ...
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Nautilus unresponsive after switching wifi networks (which prevents access to mounted network drive)

I'm having trouble with nautilus hanging. The problem is that a very particular order of events causes nautilus to become unresponsive: Connect to my own wifi Mount my nas (samba) share over the ...