Managing and using network connectivity on a Ubuntu system

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3k views

Integration multiple internet connections ISPUnity vs Ubuntu Bonding

I have Ubuntu 13.04 with 2 ethernet cards and a WiFi card. I also have 3 ISP connections. I have to configure linux to use all 3 connections. My main concern is to increase outgoing bandwidth (FTP ...
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48 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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32 views

How can I block one or more websites from the command line, especially for Google Chrome?

I teach in a school and have a cart of laptops that I set up with Edubuntu 12.04. I am using LanSchool to monitor their screens, remotely control them, blank their screens, etc. The functionality is ...
3
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121 views

Ethernet doesn't work after upgrading from 14.10 to 15.04

I just upgraded from Ubuntu 14.10 to 15.04. The ethernet is now longer recognized. If I open Network from System Settings and click on Wired, it shows Wired Disconnected - 1000 Mb/s Hardware Address ...
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309 views

Ubuntu 14.04 - Wifi keep disconnecting - thinkpad t450s - Realtek wireless

The wifi connection disconnect many times per hour. The problem only occurs at my work, not at home. Maybe there's something to configure about the wireless driver or something... Here's the driver : ...
3
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111 views

How to wake my PC with any packet, not just a magic packet?

Currently, I can wake my PC by sending a magic packet from another device on the LAN. However, the PC will not power on when I send the packet from outside the network (WAN), even though I have my ...
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1k views

Configuring Huawei E3276 modem

I'm having trouble with my mobile broadband modem (Huawei E3276) on Ubuntu 14.04. lsusb output: Bus 002 Device 024: ID 12d1:1506 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard ...
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309 views

(32) Ad-Hoc mode is not supported by this device. - 13.10 on i5 NUC

Not sure if this is an Ubuntu issue or intel issue. Any insights will be appreciated. I have an intel NUC (D54250WYK) w/ intel 7260 wireless adapter and Ubuntu 13.10. I can connect to my local ...
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458 views

Juju bootstrap node can't access Ubuntu archives via MAAS

I am trying to install MAAS and Juju on VirtualBox. The network configuration of VirtualBox is set to NAT Network. Everything is just fine. I am able to PXE boot. But when I start juju bootstrap, ...
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221 views

Setting priority of wireless networks in KDE Network Manager

Is there a way to determine the priority of wireless networks? The KDE networkmanager applet works fine, but it often connects to the WRONG wireless network by default when multiple networks are ...
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578 views

Modifying sysctl values inside lxc container

I have made several linux containers using the normal userspace tools (not docker), and I have been setting up a test environment. I want to set up two containers to try out heartbeat, which requires ...
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324 views

Ap-hotspot fail

I've been trying to create an AP wireless network from a usb wifi transmitter. I have been using ap-hotspot to do so. It has got no further than this message on debug mode: Adding system startup for ...
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0answers
272 views

Installing Fritz Wireless USB Adapter

How do I install a Fritz USB wireless adapter on Ubuntu so I can access the internet? I have the software required, but I am not sure what to do next. Ubuntu version 13.04. Output of lsusb: ...
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2k views

Error During Apt-Mirror Unattended Install Of Ubuntu Server 12.04 Over Network Using PXE

I'm attempting to PXE boot and completely rebuild a new server with an "Ubuntu 12.04 Server" image over the network using apt-mirror but I get multiple errors mid-way through the installation. I am ...
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623 views

Network Connection Failure: “network disconnected”

I'm using Ubuntu 12.10, and have a Zantel modem (model: Huawei ec122) which is a cdma modem. I have been trying to connect to the internet but every time it loads it says "network disconnected" Does ...
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811 views

Set master mode on a realtek rtl8192ce

The supported interfaces of the network adapter include also AP. But when I try to set the card on Master Mode with iwconfig wlan0 mode Master, I get the following error: Error for wireless ...
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3k views

Playing Age of Empires II multiplayer in VirtualBox Over wi fi network

I installed Age of Empires II (Expansion) in VirtualBox (hosting Windows XP). It works great in single player mode. Unfortunately, I tried playing multiplayer via WI-FI which I created on my Ubuntu ...
3
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2k views

How can I configure a Canon Pixma MG5300 to print wirelessly?

How can I configure a printer to print wirelessly in ubuntu 12.04 ? I have a canon pixma mg 5300 series, and I am able to print correctly by usb (the drivers were installed). Now I'm trying to do it ...
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829 views

How can I tell Ubuntu to keep the correct routing table?

Ubuntu sets a wrong routing table if the router is switched off and on again: Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.1 0.0.0.0 ...
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28 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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26 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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72 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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147 views

Can't connect one type of modem that is Huawei HG552e (Ubuntu 15.04) - I tried all solutions on the forum, but didn't work -

I'm using Ubuntu 15.04, My computer cannot connect to a specific WIFI network, but it's connecting to this network using an ethernet port. Also when I open my computer with Windows 7, it can connect ...
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37 views

cat: /var/lib/misc/dnsmasq.leases: No such file or directory

I've searched all over the internet, but couldn't find any answers of my problem.. I want to connect my Raspberry Pi to my laptop. But whenever i try to check the ip address of my raspberry, i get ...
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0answers
65 views

RTL8812AE cannot connect to 5ghz networks

I recently purchased a PEX867WAC22 PCI-E wifi card from StarTech (RTL8812AE), and have not been able to connect to any 5 ghz network due to authentication timing out. The driver it comes with is only ...
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0answers
27 views

how to set set up TFTPD and DHCP for PXE like booot

I am trying to setup tftpd and dhcp to assign IP address to router and then to pass the server and path to kernel image, which will be booted. All the guides I have located tell me to install and ...
2
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0answers
20 views

Why My ZTC Grameenphone internet 3g is mount failed?

My ubuntu version is ubuntu 14.04 lts. When I'm plug in the device then following massage are show: Error mounting /dev/sr1 at /media/mohammad/GP Internet: Command-line `mount -t "iso9660" -o ...
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23 views

USB stick breaks the network access

Recently I've got a brand new Sandisk Extreme usb stick. It contains a NTFS file system and a encrypted NTFS folder that I can read/write on a Windows machine without issues. But when I plug it into ...
2
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0answers
77 views

Host to Guest one way connection issue

I have guest run on my machine on qemu with configuration: /usr/local/kvm/bin/qemu-system-x86_64 -enable-kvm -cpu host -smp 8 -hda ${TEST_VIRT_ENV_IMAGE} -m 4096 -netdev user,id=user.0 -device ...
2
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0answers
17 views

Force users to authenticate

I have set up an Ubuntu server as a firewall/gateway router following the article here: https://rbgeek.wordpress.com/2012/05/14/ubuntu-as-a-firewallgateway-router/ Everything seems to work fine, but ...
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411 views

Error: “The system network services are not compatible with this version.”

I've been using Ubuntu 14.04 since 3-4 weeks now, and I suddenly encountered this error upon starting my computer today. It should be noted that the internet works, but I am unable to see the Wifi ...
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43 views

Aventail VPN tun0 dropping all packets

I'm using Aventail 10.7.1.449 on Ubuntu 14.10 and cannot connect via VPN anywhere, because all packets after the fix one are dropped: tun0 Link encap:UNSPEC HWaddr ...
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0answers
68 views

How to get bluetooth serial port tx/rx buffers status?

The problem comes from that I have to send data via bluetooth serial port from a tiny robot to my laptop at baudrate 115200, robot sends 32-bytes packet every 10ms (100 times per second). Transmission ...
2
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0answers
61 views

WiFi keeps dissappearing

I have an HP Pavilion dv4-4065la. I've been using ubuntu 14.04 since last year (before I was using Windows...so yeah, I know nothing about linux) and nothing bad happened before, but some days ago the ...
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0answers
64 views

Network problems setting up an Ubuntu server in VirtualBox

Before I get into my problem I would like to start with what I am trying to accomplish in case my approach is non-optimal. I want to setup a virtual environment that mirrors our production ...
2
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0answers
152 views

DNS problems, IPv6 not working on ubuntu 14.04; windows or an ubuntu live cd works fine

Ubuntu 14.04 was working fine yesterday. I think I installed some routine updates. Today when I booted up my computer (a thinkpad x220 laptop) I could not get a wired internet connection (there were ...
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0answers
37 views

Where do I put a dyndns script for IPv6?

I am using: /sbin/ip -6 addr|grep -v temporary|grep 'scope global'|grep -oE '([0-9a-f]{0,4}:){1,7}[0-9a-f]{1,4}' to grep my global, non-temporary IPv6 address, that is advertised by my router using ...
2
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0answers
150 views

Ethernet Lights Not On When Cable Connected And Not Working

I have two OS and second OS connects to internet easily, so it's not a hardware problem. The output of lspci is: 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM ...
2
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0answers
93 views

Cannot connect to college Wi-Fi 802.1g

I am new to Ubuntu.On just installed ubuntu 14.04 I am unable to connect to my college wifi 802.1g.It (khn-wifi)is displayed there in Network Manager menu but when clicked it again and again asks for ...
2
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0answers
62 views

Trouble with wired connection

I'm running Ubuntu 14.04 and having problems connecting to a wired connection. My computer is having problems connecting to the network. Up until now, I have been able to solve this problem by doing ...
2
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0answers
103 views

Neutron Quantum Gateway vs Neutron API, which charm to use?

We are running 14.04 Trusty/Juno and when deploying "Neutron" we have a question of which charm we should use or if both are to be used. Quantum Gateway or Neutron API or both. The charm ...
2
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0answers
160 views

How to be more specific when configuring vlans at Openstack Neutron with Juju?

I have a Openstack Juno deployment, based on MAAS and Juju charms. Im using neutron networking, with neutron-api, neutron-openvswitch and quantum-gateway charms. I would like to be using vlan in my ...
2
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0answers
196 views

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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0answers
68 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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0answers
130 views

How do I force nmcli to reconnect to different uuid?

I have a bash script that checks my network environment and mounts shares accordingly. If I'm at work and have a hard-wire connection to the LAN, then I'd like to activate a hotspot connection for ...
2
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0answers
660 views

no wireless connection on ubuntu 14.04 of my ASUS laptop TP500LA-CJ059H with Wireless: 802.11b/g/n

Here are the information about wireless on my laptop. Thanks in advance. ########## wireless info START ########## Report from: 21 Oct 2014 15:20 WST +0800 Booted last: 21 Oct 2014 15:01 WST +0800 ...
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60 views

Wireless hotspot problem

My Ubuntu laptop connects the Internet though data card. When i try to use it in my mobile by turning on wireless hotspot in laptop i couldn't find any networks in my search result in the phone. I had ...
2
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0answers
48 views

How to change pptp vpn remote password 12.04

I'm looking for a way to change my pptp VPN connection password on the remote server, is there any way to do this? I know that from windows if the password expires the connection automatically prompt ...
2
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0answers
195 views

How to trick android and ios devices into thinking they are connected to the internet

I have an ubuntu machine setup as an access point, but it is not connected to the internet. I simply want to transfer data between it and smart phones. The problem is, all devices seem to want to ...
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142 views

Wake-on-lan from suspend

I am trying to wake up my laptop from suspend using WOL but it didn't work at all. I found this old post for the same problem but I don't see how I can do this for Xubuntu 14.04 that I am using. I ...