Managing and using network connectivity on a Ubuntu system

learn more… | top users | synonyms (1)

0
votes
0answers
5 views

Pulic wifi dongle unable to authenticate

I have a problem with authentification to public unprotected non encrypted wifi network(its similar to networks you find at hotels - it routes you to a web page where you enter password) that I am ...
0
votes
0answers
14 views

Only use /etc/network/interfaces for configuring network

I'm comfortable using the classic /etc/network/interfaces, and since I've had bad experiences with Network-Manager in the past, one of the first things I do when installing a new Ubuntu system is to ...
0
votes
0answers
7 views

Using Sierra MC7304 LTE modem with QMI

I am using a Sierra MC7304 LTE modem on my ALIX-Board with Ubuntu. As far as I understand there are two ways to use it: creating a ppp connection via /dev/ttyUSB2 using e.g. wvdial (not suitable ...
0
votes
0answers
11 views

How to release an IP address and renew from the commandline?

I am using modern versions of Ubuntu that use network-manager, and I would like release and renew my network settings through the commandline. In the olden days when Ubuntu used the interfaces file, ...
0
votes
0answers
15 views

Cant access Ethernet and wifi on Dell laptop E7470

I have a new DELL Latitude 7470 with Ubuntu 14.04. I am not able to use WIFI or even Ethernet on the laptop but the internet using USB tethering works. I think it might be drivers issue. The lshw -C ...
0
votes
0answers
11 views

Knockd not recognizing knocked ports Ubuntu Server

I've got a server with knockd running. When ports 7000, 8000, and 9000 are hit, knockd is supposed to insert a rule into my iptables firewall and allow the connection to reach a port (22). For some ...
0
votes
0answers
21 views

IP address aquired, but no internet

I've got a laptop running Ubuntu 16.04 server. It's a fairly new install (a couple of days old), and I don't remember installing anything unusual. All installed software except for plex media server ...
0
votes
0answers
26 views

Intel wireless 8260 not working ubuntu 16.04 LTS

I have a laptop Dell Precision 7510 with Ubuntu 16.04 LTS. When rebooting the system most of the time the wifi does not work, and now it apparently does not work permanently. Hope somebody can help, ...
0
votes
0answers
14 views

Ubuntu 14.04 Internet cannot work using Static IP

The internet was working while I installed the Ubuntu 14.04. After updated and upgraded the system and software, the internet can not work, even though the network manager shows that the network is ...
0
votes
0answers
17 views

Ubuntu 16.04: Internet Is Not Functioning Properly (RTL8821AE)

I'm still very new to Linux and I'm still trying to set up the basics to get everything working properly. Right now the only thing I need to do is get my wireless internet working properly. I've been ...
1
vote
0answers
17 views

14.04 to 16.04 upgrade ignores NetworkManager.conf

The machine in question was a straight from dvd install of 14.04 (upgraded to date before upgrade to 16.04 on 27-APR-16), with static ip, bind9 and registered domain. ...
0
votes
0answers
18 views

16.04 constantly reconnecting to WiFi

Using Ubuntu 16.04, my computer is constantly reconnecting to my WiFi network. This wasn't an issue in previous releases. Here's some info about my system: **System:** Host: kerubin-F80L Kernel: ...
3
votes
3answers
31 views

Cannot connect remotely using ssh

I have recently installed an ubuntu 16.04. I have installed ssh server and the sshd service is up and running. I have some other PCs in the same network (windows, mac, ubuntu 14.06) and I can ping ...
1
vote
1answer
30 views

DHCP connection does not set default gateway automatically

I just did a fresh install of Ubuntu 16.04 (Xenial). I've configured /etc/network/interfaces to bring up the wlan interface automatically using DHCP: auto lo iface lo inet loopback auto wlp2s0 ...
0
votes
0answers
13 views

Wi Fi limited to 1M. Cannot be set bit rate

Few days ago, i upgrade the kernel to 4.5.2 (I run Ubuntu Mate 14.04LTS) and my ASUS USB-N13 Wi-Fi dongle isn't working properly. I tried to add in: sudo nano /etc/sysctl.conf These lines: ...
2
votes
1answer
20 views

Why remmina on Ubuntu refused to connect to Windows 7 (Service Pack 1)?

I am confused and lost as to what to do next after having gone through the Internet for answer. I have Ubuntu 14.04 LTS installed on my laptop (WIFI) and Windows 7 (Service Pack 1) (Ethernet) on a ...
0
votes
0answers
8 views

PEAP WPA disconnects

I'm using ubuntu 14.04 and everytime i connect to my university's PEAP/WPA2 wifi, it disconnects immediately. system-ca-cert=true was not present inside the conf file in ...
0
votes
0answers
11 views

Error while creating KVM network interface

I am trying to configure a new network interface in the Virtual Machine Manager for the KVM platform. Creating the network interface fails with following error: I am copying the error also ...
0
votes
1answer
25 views

Ralink RT3290 Wifi doesn't work on Ubuntu 16.04

I am having huge trouble with ralink rt3290 wifi card. I have installed fresh ubuntu 16.04 everything works except the wifi. My wifi disabled by default and whenever i try to enable it, nothing ...
0
votes
0answers
30 views

Network manager does not connect wifi network after upgrade to ubuntu mate 16.04

I tried to upgrade to Ubuntu Mate 16.04 but th network manager does not connect to my wireless network, although the WIFI card is up and scans all wireless networks around. The Intel WIFI card of my ...
0
votes
1answer
27 views

Script to Restart Network Manager after Resume from Sleep

When my laptop resumes from sleep, the wifi connection doesn't resume and I have to manually restart network manager every time with sudo service network-manager restart from terminal. I had a script ...
3
votes
0answers
49 views

ubuntu 16.04 - Wireless keeps getting dropped after about 2 hours

I have recently installed ubuntu 16 over my 14 install. Now every 2 - 3 hours the connection to the Router gets dropped. And it won't reconnect automatically, it tries too but doesn't. Also, at the ...
0
votes
1answer
75 views

Ubuntu 16.04 Ethernet Help

So, I have recently installed Ubuntu 16.04 (Server). And I am having issues getting it connected to the internet on my router. ifconfig -a: enp8s0 Link encap:Ethernet HWaddr bc:5f:f4:ac:9d:cc ...
0
votes
0answers
50 views

Kubuntu 16.04 network-manager failed to edit connection with crued log

Always I want to edit a network-connection(WiFi, VPN, eth etc.) I get a log-message something like May 2 21:39:19 mylaptop NetworkManager[925]: <info> [1462217959.6967] audit: ...
0
votes
0answers
27 views

Ubuntu isn't using full network bandwidth

Everything on my network is full duplex gigabit but every time I move files from my PC to my server (running Ubuntu 14) it caps out at 100Mbps
0
votes
2answers
13 views

When using ifconfig to see my Mac address, which one is for connecting to a wireless network?

I am using an older laptop that I converted from windows xp to ubuntu 14.04, so my question is about what Hardware address should I use to connect to my college network? The reason I ask is because ...
0
votes
0answers
60 views

Unable to install wifi drivers in ubuntu 16.04 LTS

I have recently updated to ubuntu 16.04 LTS. I have a resource cd for wifi drivers but it says unable to mount in archive manager. I cannot also install the broadcom in software updates as i am unable ...
0
votes
0answers
15 views

Network interface down after every reboot in Ubuntu 15.10

I have recently upgraded my ubuntu to 15.10 and eventually Ethernet names were changed. I don't have any problem with the names but whenever I reboot the system the Ethernet connectivity is lost. The ...
0
votes
0answers
14 views

Cohiba 3887 p54usb driver problem in ubuntu 16.04

I am trying to install driver of Cohiba 3887 p54usb Inventel UR054G in ubuntu 16.04 that works with the kernel 4.4.0-21-generic. The driver installed correctly and I found it in the list of wifi ...
0
votes
0answers
15 views

Cannot conntect to wifi on Ubuntu 14.04

I don't know why but I cannot connect with wifi in Public places. At home it works but in my work not. The password is correct because in Windows the internet works with the same password. Does ...
1
vote
1answer
26 views

Configure two network interfaces on Ubuntu 14.04

My computer is running Ubuntu Server 14.04, and is connected to two networks at the same time (i.e., local network A with IP 192.168.1.30, which has access to Internet; and another local network B ...
1
vote
1answer
28 views

SSH connection timed out externally, but works internally

Recently I tried to set my Ubuntu 14.04 desktop computer (I will call it "computer A") as a ssh server so I could access it remotely from my laptop (I will call it "computer B"). I installed ...
1
vote
2answers
27 views

How to tell whether your computer is using wifi or ethernet to access the internet

While running Ubuntu 14.04, my laptop has both its Wifi turned on with a saved wireless network in range, and an ethernet cable plugged in (which leads to a Devolo homeplug from the same network). If ...
-1
votes
0answers
15 views

How to manipulate mapping and filtering in IPTables?

I am trying to build a Ubuntu Server to act as a restrictive router for some laboratories I am performing. I am using Ubuntu Server 10.04.4 and so far I have managed to make the router return a NAT ...
0
votes
0answers
21 views

Creating a captive Wi-Fi portal

What is the basic, barebones canonical method for creating a captive Wi-Fi portal/wireless access point? I want to set up a single board computer with a Wi-Fi transceiver to provide access to a ...
0
votes
0answers
157 views

Set static IP Ubuntu 16.04

I am a new with Linux, having years experience with Windows servers/desktops and am having issues setting a static IP. I am using a method used for previous versions of Ubuntu, which doesn't seem to ...
0
votes
0answers
13 views

configuring Samsung Xpress C460w and connect it wirelessly to the router

I just bought Samsung Xpress printer C460w and I installed the Linux package driver from its website, but I can't connect my printer wirelessly to my router. In other word, I didn't find how to ...
0
votes
1answer
51 views

16.04 LTS wifi connection lost randomly every 5 minutes

First I had this issue described here 16.04 LTS wifi connection issues but nobody was able to provide a valid answer. Recently this wifi connection issue gets even worse. I would lose wifi connection ...
0
votes
0answers
17 views

cannot access to internet after running openconnect on a hotspot

I have a linux machine which runs ubuntu 14.04 and I use it as a hotspot. Normally, when I connect to hotspot, I can browse web pages and etc. but after I start openconnect, I cannot open any web ...
0
votes
2answers
26 views

No networking after reinstalling Ubuntu

After installing a new graphics card (Radeon R9 380X) on my 970A-D3P board I had difficulty starting Ubuntu. The system was duel boot and I could log into windows. After resetting BIOS I could log ...
0
votes
0answers
11 views

Network Stops Working After Several Minutes - Ubuntu Guest on Workstation

I have an Ubuntu 14.04.4 guest OS running in Workstation 10. The network connection is defined as bridged. The issue that I have is that the network stops responding after a while (it can work ...
0
votes
0answers
29 views

All kind of wireless problems in linux mint 17.3 rosa [on hold]

Hı everyone, i have something problems with my wireless connection. I've read the whole internet for this and aplied all the possible solutions but never work. İ have intel centrino wireless-n 1030. ...
0
votes
0answers
8 views

Connecting to remote printer server results in “unable to connect page” or “Forbidden”

I set up a server and want to use it as printer server as well. I added a printer connected directly to the parallel port of my server using this answer. Now the problem is that I could not connect to ...
1
vote
0answers
10 views

Stuck on “Loading” trying to connect to Network Share on Ubuntu 14.04

I have a hard drive that is shared over my wifi network by an Apple Airport. It can be seen / read / written to by the other computers on the network (all Macs), but I cannot get my Ubuntu 14.04 ...
-1
votes
2answers
23 views

Need a good handbook of ubuntu as because i am a beginer in this subject [duplicate]

Can anyone give me good hand book links of ubuntu?
0
votes
1answer
19 views

Can't install wpa_supplicant on Ubuntu Server

I'm trying to get Ubuntu Server set up and have got it installed, however it does not recognize my wired network adapter. It is at this point I should say that I am completely new to Linux. It does ...
0
votes
0answers
29 views

Can a Network Share tab be added to Nemo in Ubuntu 16.04

Recently, I had had an issue which required making a folder shareable on my local LAN. I noticed that under Ubuntu 16.04 there was no "share" tab in Nemo for making a folder shareable on the local ...
0
votes
1answer
16 views

Problems connecting to hosts in local network on 15.10

I've recently done a fresh install of Ubuntu 15.10 and I'm experiencing problems accessing hosts on my local network. Just an example: host printer.mydomain.local works perfectly, returns the ...
0
votes
2answers
35 views

Is there anything that should be done to increase security on a new system?

Let's assume I just installed Ubuntu on a laptop. This laptop may be used in different networks with different security measurements (at home, university, work place). Is there anything that should ...
1
vote
3answers
99 views

WiFi does not work: Ubuntu 16.04 on Lenovo Z51 Laptop

I followed the instructions in the top answer here: My wifi Qualcomm Atheros Device [168c:0041] (rev 20) doesn't show up and work in Ubuntu 14.04.3 on Lenovo flex 3 14 But got: (Reading ...