Managing and using network connectivity on a Ubuntu system

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Windows to ubuntu-server samba share almost double as fast as ubuntu or mac os x to samba share

I have recently build my second home server. And it is working great the only weird thing that i would like to solve is that my Samba transfer speed from Windows 10 to my server is mostly around ...
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5 views

Openldap server slow connection issue

I have one Ubuntu LDAP server with more then 1000 LDAP users. 100 client Ubuntu system having the connection. Yhe connection made by OpenLDAP with domain. Nfs mapped their home directory. My issue is ...
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1answer
34 views

using unbound with dnscrypt-proxy

My operating system is Ubuntu14.04 , I'm trying to use dnscrypt-proxy along with unbound,using unbound listening to port 53, forwarding name-resolve request to port 40, which is being listened by ...
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1answer
92 views

Wifi is frequently disconnecting

strong textAfter I changed the Wifi security from WEP to WPA2, Wifi is frequently disconnecting in Ubuntu 15.04. Most times a restart is required to get reconnected. My Wireless interface of Ubuntu is ...
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cant set wlan0 to mon0 mode only goes to monitor mode

so i dont know if this is supposed to happen but I have my wireless adapter all configured I have a tn wn822n usb thing i got off newegg. airmon-ng only finds something under interface if I connect to ...
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7answers
17k views

How do I fix broken networking in cloned virtual machines?

I've set up a virtual machine configured with bridge networking. After making eight clones of it, the new machines can't connect to the network. I've instructed VirtualBox to re-generate the ...
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0answers
15 views

How to properly update the kernel

According to this page, the BCM43340 Broadcom chipset is supported in kernel 4.0+. After booting this kernel on a machine, the network card was still not detected. On the other hand, it seems that ...
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1answer
5k views

How do I get the ath9k driver of backports-3.12-8 installed on Xubuntu 13.10?

I downloaded the 3.12-8 kernel files linux-headers-all.deb, linux-headers-generic_i368.deb; linux-image-generic_i386.deb from kernel.org and installed them via: dpkg -i *.deb Now I'm trying to ...
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4answers
882 views

How to show (just) the IP address of my router?

What command can I run to get just the IP address of my router? With this command I should have only IP of my router and not, for example, the whole routing table (as when I run route -n).
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2answers
145 views

How to overide internet website using local Apache2 hosted website?

I have set up a website (www.test.com) using Apache2 on Ubuntu 14.04. However I can only access the website after disabling the network connection (using nmcli nm enable false). If I keep the network ...
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1answer
37 views

Wifi connects but can't ping ubuntu 14.04.2

After moving to a new location I haven't been been able to get the wifi working properly. My laptop finds the network ok and can connect to it, but no data is able to pass through. Momentarily it does ...
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1answer
26 views

Ubuntu Ethernet cable not detected

My ethernet connection works fine in windows 8.1. But in ubuntu 15.04 it does not detect the link Here's the output of ethtool eth0: Settings for eth0: Supported ports: [ TP MII ] Supported link ...
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1answer
12 views

Low internet speed when adding bridge interface

I added a bridge interface using virt-manager. /etc/network/interfaces: auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp auto br0 iface br0 inet dhcp bridge_ports eth0 bridge_fd 0 ...
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1answer
746 views

Broadcom Wireless for Compaq 615 on Ubuntu 12.04.4 LTS

I have a problem where after recent updates my Wifi stopped working. I can detect my wireless network but when attempting to join it the wifi icon in the task bar just 'rolls' the wifi signal ...
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1answer
31 views

VMs can't ping each other

I have created two virtual machines in virt-manager. All machines (host & guests) run Ubuntu 14.04. Host machine has two NICs. eth1 is used by host. Virtual Network Interface for each VM/guest ...
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1answer
4k views

Generating .ovpn Config for android phone

I'm using an Ubuntu Server and I wanted to use OpenVpn for my server and my android phone. I installed OpenVpn connect for my phone and the software needs *.ovpn file from my server. How can I ...
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1answer
21 views

ASUS PCE-N15 won't work

I've been tearing my hair out trying to get a wireless adapter to work, and I've searched various forums for answered and tried lots of commands that I don't really get but didn[t seem to make any ...
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1answer
350 views

flood attack from my Ubuntu server

Our Network administrator called me today and said there is a flood attack coming from my IP Address.Why is my server do that? Is there any fix for that? Thank you! im new in using ubuntu.
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1answer
19 views

Could not set shared folder

I'm running on Xubuntu 14.04.2 LTS. Trying to share a folder on a network via shares-admin and system-config-samba applications but they give me error. command sudo shares-admin output: error: ...
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1answer
11 views

Connecting Ubuntu 14.04 and OS X 10.10.3 Via Ethernet Cable

I have got a PC running Ubuntu 14.04.02 and an iMac running OS X 10.10.3 Now , I have got some big files ( >500 gigs) on both the machines . I would like to establish an ethernet connection between ...
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4answers
10k views

Can't ssh into server, connection refused

I can't ssh into my server. The server is on a private network administrated by me. Ubuntu is version 14.04. This started when I changed to a wired ethernet card. The client is MobaXTerm (latest) ...
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1answer
16 views

High quality software video telephony

I am trying to find a way to establish a high quality video phone connection between two kubuntu computers. One of the computers will be behind a firewall at a fixed IP but an ssh-port can be opened ...
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0answers
21 views

Ubuntu 14.04 LTS server wired connection problem

I have install ubuntu 14.04 LTS server on Dell Poweredge SC1435 which have 3 NIC. I am using dhcp for eth2. I do follow steps to configure the interface, but it failed to get the ip address. Then, I ...
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1answer
35 views

How to connect and copy file to Windows 8 system from Ubuntu 12.04 via network using command line?

We have separate Ubuntu client systems and Windows system connected via LAN. My requirement is to copy a file to Windows 8 system via command line using utility like scp. For that we have to run ...
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2answers
42 views

Wireless Internet not working on Ubuntu 14.04 LTS

I have installed Ubuntu 14.04 LTS and connected to the Internet through an Ethernet cable but am unable to even see WiFi options in the connection menu. Please help as I am a novice to Ubuntu and ...
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1answer
19 views

PCIe Network card not detected by Ubuntu

My TP-Link TL-WDN4800 wireless network adapter is not recognized by my Ubuntu system. I've run lspci in the terminal, but my results are as such: 00:00.0 Host bridge: Advanced Micro Devices, Inc. ...
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14 views

Not able to change monitor mode Ubuntu 14.04 - TPlink wifi dongle

I am trying to turn my monitor mode on. But I am not able to. I tried the following command, *sudo ifconfig wlan1 down sudo iwconfig wlan1 mode monitor* I also tried installing aircrack and used ...
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1answer
17 views

ifquery working but not ifdown or ifup

I am trying to configure my network card in Ubuntu 14.04.2 using the /etc/network/interfaces file. The ifquery command works like a charm, always returns the right thing, but ifdown and ifup do not ...
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1answer
920 views

Unable to connect to internet on hyper v Ubuntu 14.04

I have set up Ubuntu 14.04 on hyper-v in Windows 8.1. I also have an external network switch linked to Ethernet. The internet and LAN works fine on my host windows 8.1 PC. But I am not able to use ...
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1answer
22 views

Create a media server for ps3 and pc

I have a second extra computer that I want to turn into a media server to house all my music and videos. I want to somehow have it on my network (wireless or wired) and have my ps3, pc, 360, and any ...
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31 views

Can't ethernet connect to ubuntu server 14.04 using my ubuntu 14.04

I achieved ethernet connection once today, under eth0, and access my PHP instance with 10.42.0.33. However, I am now using a hotspot thingie that while charging needs to be usb connected to my ...
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1answer
14 views

Piggyback Ubuntu Desktop on Peppermint laptop wifi

As of late,i have had some real wireless USB problems and i've decided to just try and use the piggyback-a-laptop method, i have an Ethernet cord, a ubuntu 15.04 Desktop and a Peppermint 5 laptop. ...
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2answers
17 views

Use laptop wifi on desktop

I have had some wireless USB problems and I have decided to just try and use the piggyback-a-laptop method.I have an Ethernet cord, a Ubuntu 15.04 Desktop and a Peppermint 5 laptop.I have tried the ...
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32 views

Networking problems Ubuntu 15/ Windows 10 dual boot

since I dual booted my Windows 10 laptop (Inspiron 5000 with Intel Core I7 processor, and Intel Dual Band Wireless AC 3160 networking card. The install of Ubuntu 15 went perfectly, my files are ...
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1answer
20 views

Wireless adapter not working Realtek

I bought a Realtek semiconducter Corp. RTL8192CU 802.11n wireless LAN Adapter for my Vostro 200 Desktop, as it doesn't come equipped with a PCI card, i went to my grandfathers house as he has the ...
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2answers
26 views

Permission error when auto mounting network drive Ubuntu 14.04

Error when trying to open mapped drive: mount: only root can mount //192.168.0.2/Music on /home/pst007x/Music/ServerMusic This is my latest (attempt) entry in fstab: //192.168.0.2/Music ...
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2answers
6k views

Can't Connect to Mobile Broadband 14.04 LTS

When I plug the modem I have a mobile broadband option in network menu bar, and I add new mobile broadband connection, and everything is fine. but, when I try to connect it, suddenly the Mobile ...
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0answers
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How do I open a webpage on another computer?

How do I open a webpage on a different computer other than the one I am using? Like this: COMPUTER SENDING WEBPAGE --> --> (SENDING) --> --> DIFFERENT COMPUTER WITH ...
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12 views

Reliance Netconnect+ not working

I have always used Reliance Netconnect by using the sudo gnome-ppp but recently I have this error message coming. GNOME PPP: Connecting... GNOME PPP: STDERR: --> WvDial: Internet dialer version ...
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2answers
35 views

openvpn connecting but no internet access ubuntu 14.04

im trying for several days to fix this , im relatively new to ubuntu . im trying to connect to openvpn . i tried network-manager plugin and in terminal with ovpn.conf file everything connects it says ...
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1answer
3k views

Ubuntu won't detect my Dell 1395 WLAN mini wireless card

I had just downloaded Ubuntu alongside windows using WUBI. I love Ubuntu but Ubuntu doesn't seem to recognize my wireless card. I have read elsewhere about installing the Ndiswrapper but that requires ...
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0answers
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USB Huawei LTE modem - after restart USB isn't connecting

the thing I'm trying to do is to restart LTE modem: Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard which I do with simple script: #!/bin/bash echo -n "0000:00:1a.0" | tee ...
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1answer
3k views

How to start dhclient at boot?

Here's the problem: root@home:~# ping 8.8.8.8 connect: Network is unreachable root@home:~# dhclient eth0 RTNETLINK answers: File exists root@home:~# ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) ...
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1answer
622 views

Ubuntu 14.04.1 - Help please to setup VPN

I use VPN from www.privateinternetaccess.com My OS is Ubuntu 14.04.1. The VPN provider provided me with Beta version of special software which kills all traffic of PC except VPN so if VPN is turned ...
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4answers
48k views

How to find all the used IP addresses on a network

In my work there is a lot of computer and I want make a joke. I can close computer over the network but finding IP addresses is hard to me. How can I easily find all online IP adresses from ...
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How to stop network manager changing my gateway?

Environment: Ubuntu 14.04 Problem: I want to connect to my VPN at work from home. Whenever I connect to my wireless, my route is set up to the work route. The home gateway is supposed to be ...
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12 views

hp deskjet ink advantage 1515 network printer

i want to add network printer at ubuntu from Windows 7. already install newest hplib but when try to printing always failed. is it because HP 1515 doesn't support for network printer or i done ...
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0answers
18 views

WiFi not connecting in Ubuntu 15.04 new installation

i have installed Ubuntu 15.04 alongside windows 8 from the time of installation it is not connecting to WiFi i have restarted my system but it is not working i have followed so many ways of ask Ubuntu ...
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0answers
13 views

Unable to connect to server from client machines after upgrade of Ubuntu 14.10 to 15.04

After accepting the upgrade notice from 14.10 to 15.04 several "program errors" have resulted in 1.File system being loaded as "read only" and dropping me on the command line. Solved that issue. Now ...
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5answers
63k views

In VirtualBox, how do I set up host-only virtual machines that can access the Internet?

In setting up virtual machines with VirtualBox, I often want the following characteristics vm has a static ip host can access vm without port forwarding vm can access the internet I can move ...