Managing and using network connectivity on a Ubuntu system

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How do I substitute network addresses? [duplicate]

Right now I have a network server that I frequently have to SSH into. Instead of typing: ssh fox@192.168.2.24 I want to be able to say: ssh fox@srv And that it would SSH into the server at ...
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6 views

Is possible to load remote desktop raspberry via server?

my server has public ip and on router is configured redirecting all packets to my server. Is there any way to connect to raspberry pi (which is in same network, also connected via ethernet) remote ...
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22 views

Network is not connected

After updating some data my system is not shown the Wifi option any more and it does not detect the network if I insert the wired cable. I already tried these attempts: ...
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6 views

Ubuntu can connect to USD Tethering but not to Portable Wi-Fi?

I just bought a ASUS PC. I can use the USB Tethering but not to the Portable Wi-Fi of my SAMSUNG phone. This is what I see after doing lsmod | grep asus in the terminal: asus_wmi 28672 ...
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1answer
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Ubuntu as a router for Video conference purpose

my setup: Ubuntu 12.04 eth0 192.168.10.17 eth1 10.10.1.27 video conference mcu 192.168.10.52 configuration done: net.ipv4.ip_forward=1 oot@its-PRODiiGY-G31:~# ...
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1answer
16 views

wifi connection keeps dropping in Ubuntu 15.10 - RTL8821AE

I recently purchased a lenovo ideapad300 and installed a dual boot system. the wifi for windows 10 works seamlessly while its problematic in ubuntu this is the output for lspci -knn | grep Net -A2 ...
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14 views

High latency spikes BCM4352

Here's the facts: Using Ubuntu 15.10 Using network-manager (also tested with wpa_supplicant) Using bcmwl_kernel_source (unable to compile broadcom_sta, other kernel_source versions are not working) ...
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2answers
30 views

Unable to create wifi hotspot .. even kde is not working .. all this happened after updating in 15.10

When I click the connect to hidden wifi network , It has stopped to show the list of all hotspots I previously connected to, So i tried to check in settings->network->use as hotspot, Even this failed ...
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3answers
4k views

How to connect MTS MBlaze

i have installed ubuntu 11.04 inside the windows xp. i have MTS Mblaze USB Modem. (my service provider is MTS MBlaze,india) i want to use Mblaze into ubuntu so that i did the following steps for make ...
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12 views

Ubuntu server 14.04.03 LTS -32bit problem with apt-get update

Hi my ubuntu server has problem to install packages and use the command sudo apt-get update Every site it tries to connect to I got a fail. But the server is connected to the network and I have a ...
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119 views

Erratic connectivity problems with Eduroam on 14.04 - possible workarounds?

I have to connect to eduroam through TU Delft settings from the following link ...
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2answers
716 views

Problems connecting to eduroam wifi - ubuntu touch

I am trying to connect to our university's eduroam wi-fi network with my Nexus 4 running Ubuntu touch (utopic latest build), but can't get past the first stage. I wonder if anyone can help please? I ...
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edX.org login issue with Chrome on Ubuntu 15.10

I am using Ubuntu 15.10 with latest version of Google Chrome. But Signin on edX.org does not work, after clicking "Sign in", it shows We couldn't sign you in. An error has occurred. Check your ...
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3k views

Installing new network driver ubuntu server 14.10

Ok first of all I was trying to connect my server to my router and set up my apache2 server so my server could be viewable online. But in my attempts to connect, I found that I have no eth0 ...
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2answers
506 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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6 views

Recover Server from recovery mode(firewall closes ports)

My server( Ubuntu 14.04 - Plesk - RAID1 ) is now in normal mode. Almost all ports disabled by firewall as plesk port 8443, so plesk login panel is not opening. Also Website is not opening. ...
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2answers
500 views

Network sharing for android

I am on ubuntu 12.04 and I want to create a wifi hotspot to be used with my android device. Now I know there are so many tutorials available every where and that I have all options in network tab to ...
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1answer
15 views

bridge and LXC container on two cloud server

I have problem with the configuration of bridge and lxc container on cloud server. I Have two cloud servers. On each cloud I've created bridge by brctl like: brctl addbr $bridge ip addr add ...
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2answers
3k views

Is there any way to install Atheros e2400 drivers?

I have a new motherboard: MSI Z170A GAMING M5. This motherboard has an Atheros killer e2400 Ethernet controller. When I do lspci -nn, I get: 03.00.0 Ethernet controller [0200]: Qualcomm Atheros ...
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63 views

Qualcomm Atheros AR9565 Wifi Adapter. Can't find drivers

I am simply looking for where I can download the drivers(source code is fine, doesn't have to be precompiled) for my wifi adapter. My laptop manufacture is Lenovo and the model is Z50-75. The wifi ...
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1answer
59 views

Wireless Internet not working Acer Aspire R5

I'm so new to Linux that it should be illegal for me to post on this forum. I bought this Acer Aspire a few months. It came with Windows 10. I obtained a virus after I removed my anti-virus soft ...
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7 views

managing an LTSP Edubuntu server with thin clients

Hello there I am hoping some one can help me. I have set-up and Edubuntu LTSP server in my schools IT room which is working fine as it should, but I wish to be able to turn the server login screen to ...
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1answer
12 views

Cannot Ping Outside from Guest throught host

I set up 2 virtual machine with the following IP: 1) IP: 192.168.20.50 SM: 255.255.255.0 Gateway: 192.168.20.100---Connection type=Bridged; 2) IP: 192.168.20.100 SM: 255.255.255.0 ---Connection ...
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18 views

Wireless Authentication through Website

Our WiFi network at our university requires you to go to a website and enter a username and password to authenticate. When I try to connect to the WiFi network I get the "Wi-Fi Network Authentication ...
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1answer
886 views

Installing Intel iwlwifi firmware for UNCLAIMED Wireless 8260?

I just installed Ubuntu 14.04 LTS on my newly built PC. My motherboard is a Gigabyte H170N-WIFI and I am currently trying to get the wifi up and running on it. In terminal, when I run lshw -C network ...
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1answer
31 views

How can I get eth0 interface

I try to get MATLAB running in Kubutu but there seems to be a problem with the network interfaces. MATLAB support told me that there must be an interface called "eth0" but I have only an interface ...
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1answer
38 views

How do I secure my Ubuntu? [on hold]

I am not pleased with the Ubuntu operating system. I was told by many "gurus" that Linux across the board was completely secure. Since I installed Ubuntu, which as an OS is great, I have set up ...
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9 views

Using two different internet connections (no load balancing)

is there an easy way to set up two different internet connections on a server? I have a Cubieboard 4 running Linaro's Ubuntu Server Port. It was installed and configured using only it's ethernet port. ...
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33 views

Need help figuring out why I can't putty to my 14.04 server

I have just installed 14.04 LTS server for i386. I am new to Ubuntu. The installation went good. I am able to login. I ran ifconfig and it returned an IP of 192.168.254.19. I started Putty on a Win7 ...
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1answer
11 views

Is it possible to define a fallback gateway server?

I'm using iptables to implement forwarding on one server, that is support to forward traffic from an internal network to the internet (tutorial: http://www.revsys.com/writings/quicktips/nat.html) On ...
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1answer
233 views

Wifi connects but can't ping ubuntu 14.04.2 with Intel 7260

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
42 views

Mount a samba network drive from terminal without hardcoding a password

I know that the default command would look like this: sudo mount -t cifs -o username=YOUR_USERNAME,password=YOUR_PASSWORD,uid=YOUR_UBUNTU_USERNAME //networkNameOfRemoteComputer/path/to/my/folder ...
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3answers
3k views

Enable mobile broadband not working

I'm using an EVDO usb Modem on 12.04. It works perfectly fine for few times. But now on wards when ever I try to connect it shows not enabled in status . I tried to enable it by ticking "Enable Mobile ...
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0answers
17 views

copy network setings from live usb

Live usb works fine on my pc. My regular ubuntu 14.04 installation suddenly lost network connections. I do not see the two arrows at the top right. eth2 does not appear in ifconfig. Instead of ...
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2answers
4k views

Ubuntu 14.04 Slow and unstable wifi connection

After installing Ubuntu 14.04, the connection frequently drops. I tried to fix the problem by myself but I made things worse, I run this code I read in another article which made my connection really ...
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23 views

How does software autodiscover devices connected to a NIC?

I have an Allied Vision camera and I'm able to connect it to my ethernet port on my computer and their software is able to find it. How do they do that? The reason I ask is because I have a computer ...
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3answers
327 views

Firefox 43.0.4 on Ubuntu 15.10 incredibly slow to load pages

Since a few days now, I think since the last Firefox update, but I can't be sure, because I've been away for a few weeks until Jan, 10th, Firefox is practically not usable any more. It takes forever ...
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11 views

WiFi works only after reinsatll

I am facing a strange connectivity problem. WiFi gets connected on my Ubuntu 14.04 but there is no internet. All other devices can connect to the same network. I reinstalled the Ubuntu desktop and ...
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1answer
29 views

Multiple connections per ip

I am running Ubuntu with a webserver (Nginx). I noticed that one IP has multiple connections opened. My server works all fine and there is no issue. I am just curious to know why there are many ...
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2answers
24 views

What could be causing throughput issues?

I'm experiencing some crazy issues regarding my internet speed using Ubuntu 15.04. I can't get anything greater than 10Mbps down,but I'm achieve 30 Mbps up. My laptop doesn't have an Ethernet port, ...
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2answers
2k views

Unable to connect wifi ubuntu 14.04 LTS HP Pavilion Network driver rtl8723be

I have purchased a new HP Pavilion 15-ab030TX, just installed dual boot Ubuntu 14.04 next to Win8. But my wifi has been showing either very weak signal at times or none at all. I tried multiple ...
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14 views

Server gets overloaded with rsync and stops taking connections

I have a backup server in AWS where I rsync data from 20 servers hourly, so it has a hefty task. For the most part it works fine but then every few hours it locks down and stops accepting ...
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21 views

apt-get update failure, unable to connect proxy addess

I have a dual boot (Windows 7 professional+ Ubuntu server 14.04) Dell Precision Tower 7810. The machine is connected to proxy server (http://192.168.128.1:8080) via LAN (static IP). My machine is ...
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0answers
24 views

Xubuntu 15.10 - WiFi working but not Ethernet [duplicate]

I upgraded from Xub 14.04 LTS to 15.10. The ethernet in 14.04 used to work, albeit slower than the Windows 10 installation on the other partition, but now it just doesn't work on the Xubuntu side. The ...
2
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1answer
128 views

Nethogs → creating socket failed while establishing local IP - are you root?

Following update of my Kubuntu, I'm not able to monitor my network consumption using nethogs: sudo nethogs enp1s0 creating socket failed while establishing local IP - are you root? Kernel $ uname ...
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1answer
6k views

How to resolve the DNS locally when there is a proxy configured?

If I configure the proxy, under Settings -> Network -> Proxy, and then try to access "http://google.com", the name resolution (IP of google.com) will happen there, at the proxy server but... How can ...
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0answers
21 views

Skype does not see online internet ( Skype can't connect ) [duplicate]

At the moment, there are two established programs at OC 1 - Chorme, 2 - Skype.Tried to install Skype in different ways, through the terminal, Software Center, deb package, but all to no avail ...
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1answer
15 views

Use USB port of raspi from ubuntu 15.10

I am trying to export a USB port over IP from raspi and use it on ubuntu. On the raspberry pi I can start the daemon using > sudo usbipd usbipd: info: starting usbipd (usbip-utils 2.0) usbipd: ...
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1answer
54 views

Check stability of the internet connection [on hold]

I am using Ubuntu 12.04 and want to find out if my system or the router or the provider is causing the problem, why I loose internet connection once or twice an hour. The computer is connected via ...
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2answers
6k views

Unable to execute command start-all.sh in Hadoop

GUYS I'm using this tutorial How to install Hadoop? I mean the one made by Luis Alvarado in one of the comments .. So I'm on Ubuntu 13.10 64bit Hadoop version is 2.2.0 Actually I'm a total newbie ...