Managing and using network connectivity on a Ubuntu system

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PPTP VPN connection failed after 1-2 min (14.04)

My pptp vpn connection always failed after 1-2mins I'm try solving it by http://ubuntuforums.org/showthread.php?t=2222063 and also check the "Use point-to-point encryption" box. but its still failed ...
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18 views

Some pages not loading with Ubuntu 14.04 LTS and Firefox

When I use a search engine, or type an address into the address bar about half of the time I get the fail page, "Unable to connect..." If I click a link from a search page, same thing. If I try to ...
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63 views

resolver fails because of no recursion enabled on DNS server and AAAA returned?

Kubuntu (Ubuntu 14.04.2 LTS, kernel 3.13.0-48-generic) installed 2 months ago (not installed yet newest updates). I have noticed that my resolver is failing: root@arrakis:~# telnet onet.pl telnet: ...
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1answer
54 views

Ubuntu 14.04 Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet [1969:1083] (rev c0) can't connect

Why can't I connect to my router via simple LAN cable? I just want to access my router and configure it, but my Ubuntu keeps attempting to make a wired connection and it can't. I tried switching my ...
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9 views

define network topology with MAAS during install

14.04 LTS Afternoon all, My question is this.. Is there a script or process that allows the MAAS controller and both network cards to be configured before logging into the controller? It seems ...
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1answer
68 views

3 different devices with Ubuntu 14.05 & 15.04 can't connect WIFI (Huawei HG552E)

Android (my phone and tablet) and Windows 8 (desktop, netbook, laptop) devices are able to connect my WIFI. When I boot my laptop with Windows 8, it's able to connect my WIFI. When I boot same ...
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1answer
171 views

Lenovo Z70 wifi with 14.04.2 and kernel 3.16 not working

I'm trying to install 14.04.2 on a new Lenovo Z70, replacing Win 8.1, but on this hardware but no wireless capabilities seem to be found. Elsewhere I see that the 3.16 kernel is required, but 14.04.2 ...
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73 views

Ubuntu is 'Waiting up to 60 more seconds for network configuration…' on boot [duplicate]

On boot, after I enter my full disk encryption password, I see Ubuntu display the following message (I believe that's a package called Plymouth): Waiting for network configuration... then ...
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32 views

Add Second Nic to Ubuntu Server 14.04.02 LTS VM not visible

I have an Existing Ubuntu 14.04.02 VM running on ESXi 5.5 Initially I installed it with one nic (VMXNET3) This works OK. Now I want to add a second nic. I added an extra one in ESX to the VM. But I ...
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1answer
27 views

Why is my wired connection not preferred over my wireless?

When connected to a wire, the wire should be the preferred connection. For some reason when I try to do DNS or connect to machines that are on the local wired LAN, the kernel is trying to use my ...
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18 views

Reconnecting interface from nmcli

I'm writing application in which I have to disable all network interfaces. Because nmcli nm enable false is only temporary (and autoconnects after some time), I use nmcli dev disconnect iface ...
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22 views

How is mounting samba share in terminal different to mounting in Nautilus?

I have a server operating a samba share that I can happily navigate by browsing the network, finding the server and share. When I open the share I'm asked to log in. I use my username and password and ...
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102 views

Can't connect to my dsl connection in ubuntu 15.04

After the recent upgrade, when I tried to connect to my dsl, it shows like this.. Connection activation failed. (1) Creating object for path '/org/freedesktop/NetworkManager/ActiveConnection/5' ...
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68 views

apache2 configtest failed with output “No MPM loaded.”

root@tasnim:/home/tara# service apache2 restart * Restarting web server apache2 [fail] * The apache2 configtest failed. Output of config test was: ...
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25 views

Ubuntu Server 14.04 (Bridged VM) Cant connect to network

I installed an ubuntu server 14.04 on a bridged VMWare VM: During the installation it tried to auto-configure the network settings but it failed, so I configured it manually: (Its in my home ...
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18 views

wireless problem: skype works but web browser fails, router dashboard shows off-line

I had met with the same problem with winxp, the way to fix it is to preset DNS in TCP/IP network setting, which works extremely well. After I installed Ubuntu 14.04, this problem has plagued me since ...
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1answer
40 views

LVS-NAT doesn't work with passive FTP. Active FTP is fine

On Ubuntu 14, I'm trying to set up a load balancer that uses haproxy for web connections and LVS-NAT for FTP, controlled by ldirectord, with pacemaker for automatic failover to a redundant host. The ...
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1answer
22 views

Unable to connect to fresh server

I am miffed... To say the least I can't connect to my server via any means: ufw disable root@server~# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination ...
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1answer
20 views

How can i make both iptables/ip6tables run at startup?

I have two differents set of rules in two files, one is dedicated to ipv4 and the other for ipv6. To make them persistant I use the if-pre-up/if-post-down script : #! /bin/sh iptables-restore < ...
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1answer
51 views

issues setting static IP in ubuntu server 14.04

I have my /etc/network/interfaces file setup as: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 172.16.140.98 network 172.16.0.0 broadcast 172.16.255.255 ...
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2answers
20 views

export SOCKS_SERVER not working

I try $ export socks_proxy=127.0.0.1:9150 and $ wget http://icanhazip.com/ but still show previous IP (icanhazip.com show IP). Tor working correctly on Firefox.
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39 views

How can I confirm my network is compromised and stop the abuse?

In the last few months I have seen and recorded strange activities on one laptop running Windows 7 and another running Windows 8.1 Pro. The activities ranged from both laptops connected to Ethernet ...
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33 views

Site not found when accessing by IP

I have been working on an Ubuntu server and trying to get my public web site moved to this new server, from a server currently hosted on Linode. I started by copying the web files from the old server ...
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must wireless network turn on hard switch in ubuntu?

My computer comes with a built-in wireless adapter, but the hard switch is not very reliable and leads to constant drop off line, thus I purchased a belkin usb wireless adapter to help. It works ...
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1answer
141 views

Ubuntu 15.04 has very poor PPTP connectivity

Under my university circumstances, I should connect to a PPTP VPN to access to the Internet. Thus a high perfomace and bug-free PPTP client is a essence for me. When I was using Ubuntu 14.04 and ...
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1answer
35 views

Fixing a Wi-Fi hotspot in Ubuntu 14.04

I've run into a number of issues related to wireless networking(under Ubuntu 14.04). Is it possible to fix a set of hotspots so that the connection won't be dropped regardless of the number of ...
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36 views

Best setup for virtual machines

Today I have a Ubuntu Server with one lan connection (eht0) and two internet connections with one provider dedicated ip each (eth1 and eth2). I would like to change this setup to a new Ubuntu Server ...
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46 views

Redirect traffic flowing into SSH server to privoxy, then to TOR

I own a Ubuntu VPS that I am using for SSH tunneling. I want the traffic to be redirected to TOR network. Some research showed that I can do it by using Privoxy, that will accept traffic from SSH ...
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1answer
42 views

python simpleHTTPServer woking only with local machine

I ran following command to run http server python -m SimpleHTTPServer and get following message Serving HTTP on 0.0.0.0 port 8000 ... but i am not able to access it on another machine/mobile in ...
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53 views

Ubuntu 14.04 LTS server: configure virtual network devices [fail]

Since a few hours I have a problem with the networkdevice at my server. When I (re)boot the server I get the following fail-message: configure virtual network devices [fail] A few moments later it ...
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1answer
71 views

How to connect from home PC to Virtualbox/KVM that hosted on Ubuntu server?

I have an Ubuntu server, it's 3TB HDD space total and 24GB RAM, I want to take 1 little bit of space and RAM to make VPS Windows using VirtualBox or KVM. I want to install Windows Server 2008 on ...
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24 views

Need to host 30 domains, but Bind9 config info is confusing

Bringing up a new server using ubuntu 15.04, Bind9 and Apache 2.4 that needs to host 30 web sites - each with own domain name. Have configured Apache virtual hosts and all seem correct, but Bind must ...
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1answer
48 views

Xubuntu's Network Manager cannot detect wifi on Lenovo G450 laptop

I just recently installed Xubuntu 14.04 on dual boot in my Lenovo G450 laptop. For some reason, I can only connect to the internet on an ethernet cable since the Network Manager fails to detect any ...
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1answer
52 views

15.04 WiFi on Dell D630

No WiFi on Dell Latitude D630. Just Installed 15.04. Window user so no idea how to proceed. I assume I need a driver but do not know how figure what adapter I have or how to get a driver (new to ...
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1answer
97 views

Problems with Qualcomm Atheros AR9285 Wireless Network Adapter

I'am sorry to ask about this hardware again, but the problem is: ==lspci: 01:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01) ==lshw -C network ...
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1answer
97 views

apt-get update stuck: Connecting to security.ubuntu.com

When I run apt-get update on my machine it gets stuck at: 100% [Connecting to security.ubuntu.com (2001:67c:1562::15)] [Connecting to archive.canonical.com (2001:67c:1360:8c01::16)] I have made no ...
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25 views

tenant and external network vlan mapping in openstack

have deployed openstack Juno on VMware with 3 nodes one for each network, controller & compute following the below link using VLAN network. http://docs.openstack.org/juno/instal... In the neutron ...
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2answers
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Configure client-side DNS?

I have a network with 2 machines. machine A has IP 192.168.1.100 , machine B has IP 192.168.1.101. Now i want to resolve machine B IP address to test. I don't want to pass through a dns server. ...
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40 views

changing ethernet drivers acer aspire one D250 ubuntu mate 14.04

I was wondering if someone can help me out, I'm trying to help my mom fix her laptop, she has an acer aspire one D250, her wired internet connection stopped working suddenly, I think i have it ...
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What is the next step when an 'ask ubuntu' question isn't answered? [migrated]

I asked a question months ago (back on 16 January 2015) about an 'invalid argument' when trying to access a shared folder on an external drive usb connected to a Win 8.1 box on my network. The ...
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1answer
29 views

how to revert back to 12.0 network manager

I recently did an automatic update from 12.04 to 14.0. everything seemed to work very well until I rebooted. Now the network doesn't work. The new plasma network manager either doesn't save the ...
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48 views

Wired network working but apps cannot see the DNS

I have a working network connection but none of the applications can see the Internet. Thunderbird, Ubuntu software center, chrome etc cannot connect. So I have to use microsoft windows to connect ...
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3answers
86 views

Wi-fi issues on Dell Vostro 3446 Ubuntu 14.04

I installed Ubuntu 14.04(Trusty Tahr) on my Dell Vostro 3446 and it seems to work fine barring a glitch. The wi-fi does not work. When I click the wi-fi button on the top right, it does not show ...
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16 views

Ubuntu x64 14.04 WPA2 only wifi not connecting

My wifi connection, a WPA2 only one (checked router) with a vodafone router is not recognized properly, Ubuntu keeps asking me for the password which I know is correct, obviously checked caps on, etc. ...
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22 views

Fixed bit rate for usb-wifi dongle

I would like to do some measurements using wireless transmission at fixed bit rate. I know that this is possible using the command (for 1 Mbps) iwconfig wlan0 rate 1M This command takes effect when ...
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2answers
189 views

Ubuntu 15.04, Asus Flipbook TP500LN No Internet and touchpad did use NDISwrapper [SOLVED]

So I installed Ubunutu 15.04 on my Asus Flipbook TP500LN, but I don't have acces to wi-fi (ethernet does work). Now I read about Ndiswrapper, I installed the program and used it to install my wi-fi ...
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42 views

14.04: Clicking a VPN connection in the network icon menu does nothing

This is identical to (Open VPN connection doesnt work after reboot Ubuntu 14.04) with the one exception that it is a PPTP connection and not OpenVPN. Usually when I click a connection in the menu the ...
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1answer
74 views

wifi won't stay connected

I have a HP Pavillion dv6000 with Ubuntu 14.04 LTS and a Broadcom wireless card (BCM4312). My Ethernet connection is fine. But when the wifi is turned on, it will stay connected for a short time and ...
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1answer
26 views

Proxychain with static IP untill tor reload

I recently installed tor privoxy and proxychains on my 14.04lts works ok as intended. There is no acctualy problem with functioning, I have problem with setup. As I always used it with config ...
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27 views

No connection, network card drivers?

I'm new to Ubuntu and I've just installed Ubuntu 15.04 as a dual boot with my Windows 8.1 64-bit. After the installation I can't connect to my wifi and the system doesn't recognize any network. What ...