Questions concerning network connections.

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3 views

how to change default lan connection in ubuntu 12.04 server

I want to change eth1 as default connection but in my server the default connection is eth0. To change default lan connection in ubuntu 12.04 server please help me.
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0answers
25 views

Connection to the Wi-Fi Internet for the new 16.04 version of Ubuntu

Can anyone give me an easy way to connect to wireless Internet for the latest version of Ubuntu 16.04? Why has it been changed from the no problems version 15?
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0answers
49 views

How can I fix Bluetooth in ubuntu 16.04?

bluetooth.service - Bluetooth service Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled) **Active: active (running)** since Thu 2016-06-16 21:16:09 EDT; 1h ...
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1answer
12k views

How to scan an entire network using Nmap?

Is there a way to scan an entire network using nmap? What I want to do is scan my network for all the devices that are currently connected to it.
1
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1answer
4k views

Firebird - Connection Refused

Whenever I try to connect firebird on my Ubuntu 13.10 from my Window 7 computer I get an error message saying that the connection was refused. I'm trying to connect using IBExpert and Java. Java ...
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0answers
16 views

How to fixed a connection failure? [closed]

When I restart the WiFi connection, I had Internet for a while, until the connection is interrupted. What I can do? My PC is a HP probook
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0answers
22 views

Repeated prompt for wifi password without connection

My (old) laptop keeps prompting me for a password to my wifi. It does this repeatedly and does not connect even if I am sure the password is correct. I would like to state that I have no idea what I ...
0
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0answers
82 views

Broadcom driver bcm43412 not showing

I deleted windows and installed Ubuntu. It worked perfectly well. For foolish reasons,I deleted Ubuntu and installed it again. But after that WiFi didn't connect and Ethernet cable did't connect. When ...
0
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1answer
79 views

ubuntu 16.04, wired connection suddenly lost

I'm an absolute novice to Linux/Ubuntu and network, don't even know how to use vi editor yet. Just installed ubuntu 16.04 for about a week and happy learning online. However the wired connection, ...
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0answers
24 views

l2tp gives error 410 on attempt to connect on VPN

I'm getting error 410 while trying to connect via L2TP. This error occurs very often, but sometimes I'm able to connect, which leads to a fact that I customized everything properly. I have Ubuntu 14....
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0answers
15 views

How to install and use postfix?

How do I install postfix with encrypted connection, smtp and so you don't need to create a user account for each user? If you have any questions, please don't hesitate to ask in the comments.
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0answers
11 views

How do I install a driver for my wired Ethernet port

I downloaded the Ubuntu 15.04 iso and created a CD. Running Ubuntu from the CD I had a wired Ethernet connection. I installed Ubuntu on a Dell Latitude 131L. Neither my wired Ethernet port nor my ...
0
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1answer
774 views

WiFi connection run very slow in Ubuntu 16.04 (USB Stick)

I have recently installed Ubuntu 16.04 beside Windows 7. I use TP-Link TL-WN821n. Ubuntu normally installed, seems that USB stick driver was installed automatically. but the internet connection is ...
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0answers
28 views

16.04 Unable to use wifi

So I installed Ubuntu 16.04 alongside with my win 10. I have BDM4352 802.11ac. I can't enable it in other drivers, I mean when I am autorising it, it's just returning to don't use. I tried to add wifi ...
0
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1answer
66 views

Wifi Not detecting in Ubuntu 16.04 [duplicate]

I have a HP 15 AC122TU laptop having dual OS as Ubuntu 16.04 and Windows 8.1.My problem is that it doesn't detect wifi sometimes. If connection established it may result in a low speed and poor range. ...
0
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1answer
68 views

The wi-fi card doesn't connect

Since I have installed Ubuntu 16.04, my wireless network adapter doesn't want to connect to the internet. Can anybody help me fix this? Model: Qualcomm Atheros AR928X Wireless Network Adapter
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0answers
43 views

Lost wifi connection ubntu 16.04

My wifi connection is lost. Wifi icon does not change. It's looks normal and the connection seems ok. But actually, the connection is lost and I don't have any access to the internet. Do you have any ...
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0answers
28 views

Cannot create a persistent Bluetooth connection between phone and laptop using rfcomm

I already successfully paired my Android (6.0.1) phone (Sony Xperia Z3) with my laptop (running Ubuntu 14.04). I can send files back and forth. The Bluetooth connection menu shows that the connection ...
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0answers
17 views

Network-manager is deleted and i have no internet access

i accidentally deleted the network manager from my ubuntu, and i have no access to the internet and thats why i cant use sudo apt-get install network-manager because its said me that could not load ...
0
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1answer
38 views

what happened to my network connection

I have a dsesktop pc, I am dual booting ubuntu 14.04 and windows 7. after recently doing a software update I can't access my network for Internet, using ubuntu. Windows Internet explorer still can ...
3
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3answers
10k views

MSSQL connection from Ubuntu

I need an easy and complete tutorial for making a MSSQL connection from Ubuntu. I think I installed FreeTDS and UnixODBC but configurations are very complicated I didn't understand the issue. I ...
0
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1answer
94 views

WiFi dropping at random times (BCM43142)

I am experiencing unstable WiFi connections, it is driving me crazy. It happens randomly, it is driving me crazy. I have tried different drivers, but it did not help. I am running Ubuntu 16.04 LTS, ...
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0answers
20 views

Broadband connection needs to be setup every time i start Ubuntu

I use Ubuntu 15.04. I have just bought a 4G WWAN modem. Ubuntu reognizes it directly as well as my Internet provider. I have created a connection with the "Create New Connection" wizard and connected ...
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2answers
3k views

ssh connection closes after successful login

I am trying to run ssh on my computer so I can control it with my android phone. When I scan my local network with overlook fing at my phone I get that my computer is running ssh at port 22. So I try ...
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6answers
7k views

16.04 LTS wifi connection issues

I discovered several issues with wifi connection after installing 16.04 LTS. First, wifi doesn't reconnect normally after sleep or hibernation. Sometimes the network icon turns into a "up and down ...
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0answers
37 views

Route traffic from eth1(local network) to eth0(external network) where ubuntu is dhcp server

I have an ubuntu server which is configured to be DHCP server to give IP address to a cisco switch through eth1. eth0(connected to the external network) ip:10.106.24.182 netmask: 255.255.255.0 ...
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3answers
4k views

Ethernet connection for Realtek RTL8139/810x not working

I installed ubuntu recently and i cant connect to internet.... I never deal with linux before much but i cant connect to internet and it keeps giving notification wired connection disconnected Its ...
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0answers
22 views

ubuntu 14.04_LTS-server (64BITS) How to access from a Windows 7 computer

have recently purchased a dedicated server service to scale up my online gaming community. As I am new to Linux wondering what the next steps are to be able to access remotely the server? I have ...
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0answers
127 views

Ubuntu LTS 16, WiFi doesn't work

I currently switched to Ubuntu OS after having Windows for such a long time. The WiFi was not working on the windows OS either, I thought that perhaps switching could help. Unfortunately, I can only ...
0
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1answer
44 views

Wifi wont work with Ubuntu [duplicate]

I am currently unable to find any wifi connections in Ubuntu. It works fine on Windows 10, however. Ive scoured the internet, but all of the posts are extremely old and i appear to be the only user ...
1
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1answer
26 views

Can't connect to my ubuntu box outside my local network (VPN)

I have an Ubuntu 14.04 server running some services on different ports. I used to be able to connect to it (via SSH, samba, and a couple web servers on different ports) using a VPN. I'll use ssh as ...
0
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1answer
40 views

Not showing any wifi connections after Ubuntu dual-boot

I am currently unable to find any wifi connections in Ubuntu. It works fine on Windows 10, however. Ive scoured the internet, but all of the posts are extremely old and i appear to be the only user ...
0
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0answers
69 views

internet connection problem ubuntu 16.04 [duplicate]

I upgrated ubuntu 14.04 to 16.04. After that I do not have internet connection. Is there anyone has faced the same problem and has fixed it? It is seems that is connected to the internet and is ...
0
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0answers
36 views

i have a problem in client windows openvpn conection

Wed Apr 27 23:10:40 2016 OpenVPN 2.3.10 i686-w64-mingw32 [SSL (OpenSSL)] [LZO] [PKCS11] [IPv6] built on Feb 1 2016 Wed Apr 27 23:10:40 2016 Windows version 6.1 (Windows 7) Wed Apr 27 23:10:40 2016 ...
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0answers
17 views

How can we keep Ubuntu bluetooth connection “ON” all the time when paired with a Phone?

I paired Phone and VirtualBox(OS Ubuntu14.4) via Bluetooth successfully, but the Bluetooth connection is "OFF" all the time. How to change it to "ON"? Who have any idea on it? Thanks a lot~
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0answers
43 views

How to configure Bluetooth Tethering (Smartphone/Laptot) to autostart automatically when I turn on the computer?

I would like to know the way I turn on my computer and it active automatically my Bluetooth Tethering connection (my Internet connection). Now every time I turn on I have to do it manually. Do I have ...
9
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5answers
14k views

Why is Steam not able to connect Steam-Network?

This is the output when I try to start steam. It closes with the Message "Keine Verbindung zum Steam-Netzwerk möglich..." (No connection to Steam-Network...) Removing appcache didn't help so far. ...
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0answers
79 views

unstable wi-fi connection ubuntu 14.04

I've read other questions in askUbuntu, but couldn't solve the problem as I'm new to Linux. The problem is that the Wifi connection on Ubuntu 14.04 is very unstable. And i don't know what to do. ...
0
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0answers
150 views

SPI connection in Ubuntu 16.04

i have just installed ubuntu 16.04 in my raspberry pi 2 and i am trying to connect my rpi2 with my arduino through SPI. Usually it was applicable with jessie but due to eduroam wifi i installed 16.04 ...
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0answers
30 views

Can not connect to any WiFi network other than my office WiFi. I am able to connect to hotspot connection.

I am able to connect to mobile phone hotspot networks. Network manager asks for WiFi password repeatedly. None of the following solutions work. Solution1, Solution2 Outputs of few commands $ sudo ...
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0answers
13 views

Usb Wifi Device Stops Working

I am using Ubuntu 15.10 (AMD 64bit) on my desktop PC (HP-8200). I bought a generic '150Mbps Mini Wireless N Usb Adapter' off ebay for connecting to our wifi. The internet runs for a few minutes, ...
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1answer
5k views

How to unblock port 1521 for Oracle on Ubuntu 13.10

I installed Ubuntu 13.10 and Oracle 10XE. I logged in to the Oracle and did startup. Everything is connected, Oracle has been started. Then I saw the following error: telnet localhost 1521 Trying ...
1
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1answer
220 views

Ethernet not working on ubuntu 14.04 LTS

I have been struggling a lot trying to activate my ethernet connection without success. I am on ubuntu 14.04 LTS on a dell xps8900. I have a dual boot with windows 7 and ethernet is working fine on ...
0
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0answers
41 views

Slow WiFi connection after installing ubuntu

I had problems with my connection speed after installing Ubuntu 10.15 alongside with Windows 10. After the Ubuntu installation, both were with slow connection, something between 3Mbps and 6Mbps. ...
4
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2answers
2k views

Cannot connect to eduroam from ubuntu

I am trying to connect to eduroam from ubuntu, asks me for certificated. I asked my college tech support and the answer I got was "I don't know nothing about linux ubuntu, all machine are windows or ...
3
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2answers
14k views

Juniper network connect on Ubuntu 14.04 cannot find 32 bit Java

I have Ubuntu x64 and trying to install Juniper network connect. Installed 64bit jre/jdk, icedtea and 32bit jre sudo apt-get install openjdk-7-jre icedtea-7-plugin sudo apt-get install openjdk-...
0
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1answer
75 views

Linux Won't Run

Wow. I recently installed Ubuntu on my Chromebook C720. I installed it using Crouton, so it runs Chrome and Ubuntu side by side. I can switch between them with a hot key. For more information on my ...
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0answers
129 views

Unable to autoconnect to hidden network in Ubuntu 15.04

My computer with Ubuntu 15.04 is unable to automatically connect to hidden wireless network. I have checked the "Automatically connect to this network when it is available" option, but it doesn't work ...
0
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0answers
26 views

Chrome on Ubuntu 14.04 LTE Intel not working for any https web page

I've tried updating Chrome and all Ubuntu updates. But, any web page I go to that has https:// results in a "SSL connection error". Not sure when this stopped working but I'm positive it used to work....
0
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1answer
105 views

Wireless not working properly or directly not working

Recently I have bought 2 almost-twins laptops ("HP Stream Notebook PC 13-c102ns" and "HP Stream Notebook PC 13-c100ns") with Win10-64bits as default OS. I tried to install Lubuntu 14.04, Ubuntu 14.04 ...