Questions concerning network connections.

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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 ...
4
votes
3answers
12k 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 ...
1
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0answers
61 views
+50

Slow wifi ubuntu 16.04 in ultrabook

Yesterday, I installed Ubuntu 16.04 onto an LG laptop. Everything is working fine except the wireless connection. When I'm closer to the router, the connection is fast, but in my room the wireless is ...
-1
votes
0answers
18 views

internet connection not working on Ubuntu 9.04 [closed]

My laptop is Toshiba Satellite with Ubuntu 9.04, I've set the IP address, subnet mask, default gateway, DNS server and alternate server. But it's not working. Any suggestion for a browser?
0
votes
0answers
21 views

16.04 Wireless Networks available, not connecting though

So I recently installed Ubuntu 16.04 onto my HP ProBook 450. I am able to view available wireless networks and I see my respective network. However I am unable to connect to it. I select my network, I ...
0
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0answers
8 views

configuration of rlogin application

I am using security-onion a ubuntu based linux distribution. I can use rlogin -l username localhost command successfully but when I use other machines to remote login I get connection refused error. I ...
0
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0answers
28 views

network problems [on hold]

I have an Acer Aspire Laptop type 5100 with a BCM 4318 network controller and although I have searched on the web for a solution with the B43 Cutters - firmware and broadcom software drivers am ...
1
vote
1answer
152 views

Can't ssh via hostname

My issue is that I can't ssh agains the hostname, during troubleshooting I did a host look up and tried to ssh via IP which worked. The error message I get is... Permission denied (publickey). ...
0
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0answers
42 views

No WiFi ubuntu 16.04 LTS won't connect to any network! [duplicate]

I had always this problem when the notebook was suspended. But normally with a reboot everything goes right, but not now! Can someone help me? After done lspci -nnk | grep Net -A2 02:00.0 Network ...
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0answers
19 views

Ping but no other connection within LAN

So i scratched the idea of ubuntu 16.04 and just wanted to try and get cacti working with 14.04 again. However i have everything installed and configured correctly, and i don't get any connections. ...
0
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0answers
23 views

VPN Connection failed

i install and configure pptp vpn and but it dont connect and show me this error: "VPN Connection Failed The VPN connection 'xxxxxx' disconnected becuase the VPN service stopped."O
4
votes
4answers
8k views

In Wired Connection settings save option is getting grayed out

Each time I switch to manual configuration, of wired connection in Ubuntu 12.10, the save button gets grayed out. As soon as I start setting it in Manually, it gets grayed out.Please help ! One ...
1
vote
1answer
2k views

Cannot connect to any networks after spoofing MAC address

So I want to spoof my MAC address. However when I do so I am unable to connect to any networks. After changing it back to the physical MAC address of the network card, it works just fine. It worked ...
-1
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0answers
8 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.
0
votes
0answers
76 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 ...
4
votes
1answer
13k 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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0answers
17 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
0
votes
0answers
29 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
votes
1answer
123 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, ...
0
votes
0answers
50 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....
0
votes
0answers
19 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.
0
votes
0answers
12 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
votes
1answer
971 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 ...
0
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0answers
36 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
98 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
votes
1answer
78 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
0
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0answers
52 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 ...
0
votes
0answers
35 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 ...
0
votes
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
votes
1answer
40 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 ...
0
votes
1answer
145 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, ...
0
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0answers
24 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 ...
1
vote
2answers
4k 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 ...
21
votes
6answers
13k 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 ...
1
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0answers
47 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 ...
0
votes
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 ...
0
votes
0answers
24 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 ...
1
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0answers
143 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
votes
1answer
45 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
vote
1answer
28 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
votes
1answer
43 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
votes
0answers
70 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
votes
0answers
57 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 ...
1
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0answers
18 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~
0
votes
0answers
48 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
votes
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. ...
1
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0answers
98 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
157 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 ...
0
votes
0answers
37 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 ...
0
votes
0answers
14 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, ...