Managing and using network connectivity on a Ubuntu system

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How is `/etc/udev/rules.d/70-persistent-net.rules` supposed to be created?

On my utopic live USB the file seem to be created automatically and have content specific to my computer (ie matches on my MAC address), but when installed under QEMU or on my server this file is ...
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30 views

Micromax MMX 355g USB 3G Dongle

I am new to ubuntu . I'm using ubuntu 14.04. Please help me I am unable to connect to the internet using my Micromax mmx 355g 3g modem. In windows it was very easy as modem was auto detected by it. ...
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1answer
35 views

OpenSSH client not connecting after deleting id_rsa

So I stupidly overwrote my id_rsa and id_rsa.pub files earlier, and I just decied to rm -rf the whole .ssh folder because it was all corrupted/broken after tinkering with it. Ever since that when I ...
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Wifi disconnected, but still shows up output that it's connected - 12.04

I really don't understand this now. I knowingly got disconnected from the wifi network and then later checked the available wireless extension using iwconfig command. Although I was disconnected it ...
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0answers
29 views

Bringing up interfaces on ceph nodes

I have machines under MAAS with 4 interfaces. I want to configure my ceph nodes to use two networks that are not the pxe boot network. MAAS doesn't "up" all of the interfaces when a machine is ...
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14 views

Anyone have experience booting the OS from a NAS drive?

I'm currently trying to fix a old laptop of mine but unfortunately I have broke my last memory stick which limits my options on how I am going to fix it (gparted for instance). Right now the laptop ...
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1answer
43 views

LDAP errors before network is up

I'm getting the following kind of errors during the boot process: May 11 12:19:25 vagrant-ubuntu-vivid-64 sh[482]: nss_ldap: could not connect to any LDAP server as (null) - Can't contact LDAP server ...
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13 views

Samba: read only from subnet

We have a network with mixed computers (Linux, OSX, Windows) and all have read and write access to a samba file server. Because of the fact that the login to samba goes over guest login I have limited ...
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41 views

kvm bridge dropping packets

Periodically one or more of the guests lose network connectivity. We are getting packet loss only in vms. Setup: We're running 3 KVM guests, all Ubuntu 12.04 LTS using bridged networking. OS on ...
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1answer
59 views

Cannot SSH into home desktop

I've installed openssh-server, I've edited /etc/ssh/sshd_config to look as follows # Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols ...
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30 views

Cisco AE2500 wireless adapter not recognized after reboot

I have used a lot of threads in here to make it work, but since the internal wifi is working, my AE2500 gets the name wlan1 instead of wlan0, which means (as i understand it) that it will only work ...
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1answer
32 views

Different proxy servers to diferent networks

I'm looking to a alternative to configure a different proxy each time that I connect to a different network. By example: Network 1 (cable) - Servers - proxy 192.168.0.1:3128 Network 2 (wireless) - ...
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31 views

How to mount smb shares as a regular user?

I searched high and low but haven't found the answer yet ... I'd like to as a regular non-root user to access a network share and work with it from command line. The file manager can already ...
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25 views

MaaS DHCP issue on 14.04

I'm having an issue with 14.04LTS server via MAAS installation (on a VM). iscsi does not connect after the PXE netboot: iscsistart: Logging into ...
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18 views

Control Ubuntu 14.04 machine from Win8 machine

I want to control my Ubuntu 14.04 PC from my Windows 8 PC. Both computers are on Cisco EPC3928S and I do not have any problems connecting other windows computers. I can not get Windows 8 to see ...
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2answers
77 views

Network manager applet doesn't show wired network connection

I have the latest installs of network-manager and network-manager-gnome. I installed Ubuntu Server LTS 14.04, then installed Cinnamon on top of that. I have LAN network connection (can browse, etc.). ...
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1answer
116 views

Network Share Ubuntu 15.04 Not working

I have a 1TB drive inside my desktop (running Ubuntu 15.04) that serves as a network share in my home. I have done the following to it chmod -R +775 /media/<me>/<share> chown -R ...
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1answer
23 views

Juniper Network Connect crashing on Ubuntu 14.04 32-bit

Previously, I had Ubuntu 64-bit installed, but having tried all solutions for running JNC on 64-bit, I decided to downgrade to 32--bit. But apparently, the problem remains the same. JNC crashes ...
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1answer
22 views

Ubuntu in VMware Player Cannot Access Internet for Updates

I am using VMware Player version 6 to host Ubuntu Desktop 14.04 LTS on my MS Windows 7 Ultimate 32bit. My internet connection is through squid proxy with password authentication. Since Ubuntu ...
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24 views

Virtual Machine can not ping to internet but still use apt-get update?

I'm installing VMware version 11 on Windows 7 Pro to create Virtual machines. VMs is running Ubuntu 14.04. My problem is I can not ping from the virtual machines to the Internet (8.8.8.8). but still ...
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26 views

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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21 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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75 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
63 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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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
87 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
242 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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36 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
28 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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22 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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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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128 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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92 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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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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20 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
46 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
21 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
56 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
24 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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How can I confirm my network is compromised and stop the abuse? [on hold]

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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35 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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20 views

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
160 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
39 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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39 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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0answers
52 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
57 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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72 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 ...