Questions concerning network connections.

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0
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1answer
3k 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 ...
0
votes
2answers
723 views

Connection was refused by other side: 111: Connection refused

I am running 25 scrapy jobs, each has 50 concurrent requests on a heavy machine (with Ubuntu 12.04.3 LTS). I am using proxies to send requests. After 15 minutes or so, I get this error from almost all ...
1
vote
3answers
125 views

What is an origin and solution for “port 9000: Connection refused” error?

I am stuggeling with port 9000: Connection refused error. I work on Ubuntu 14.04 and faced the problem when trying to run Hadoop in a non-distributed mode, as a single Java process (compare Hadoop ...
0
votes
0answers
55 views

Internet not working after upgrading to 15.04

I upgraded to 15.04 today and have had a series of problems, during the upgrade there were a number of messages saying that packages could not be installed because of an error. Then When I rebooted ...
0
votes
1answer
3k views

ubuntu 14.04 not detecting SamsungY Android via usb cable

I had this same problem when previously using ubuntu 13.10, among other issues with my Windows dual boot. So I wiped the hard drive, re-installed ubuntu stand alone, and I still get the same dang ...
1
vote
1answer
2k views

Need help with chronic slow wifi connections

I have had chronic slow wifi connections on several networks for a while now, I think since my update to 12.04 when it came out. I have tried many of the tips and tricks already available out there in ...
4
votes
4answers
11k views

Strange connections by gvfsd-http --spawner

For a little while now, a strange connection has been showing up on my netstat made by the command: /usr/lib/gvfs/gvfsd-http --spawner :1.1 /org/gtk/gvfs/exec_spaw/2 By the time I notice it, the ...
1
vote
1answer
214 views

Can't get online after installing Lubuntu 15.04

I upgraded to Lubuntu 15.04 yesterday. I originally installed Lubuntu at school several months back, so it was done using the school's Ethernet connection. At home, I set up my own DSL connection, ...
0
votes
1answer
54 views

Wifi disconnects and doesn't re-connect anymore

i've got a Lenovo z50-70 and when I connect to a wifi it works for some time and then internet stops working; when I manually disconnect it, it takes like a minute to disconnect and then it tries to ...
-1
votes
0answers
10 views

no wifi on imac running 14.04 only [on hold]

how do I get wifi on my mac running Ubuntu 14.04 only? I've tried left clicking the WIFI icon but there are parts missing and my pc running same had no issues. I'm using it right now... anyone else ...
0
votes
1answer
54 views

KVM Bridging - Network connection fails if I change Device model to VirtIO from rtl8139

I'm setting up my first VM and am using bridging to access my network. It's a Windows7 VM on Ubuntu 14.10. I read that changing to 'Device Model = VirtIO' in the definition of the VM will improve ...
0
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0answers
37 views

Activating VPN fails always after temporary loss of internet connection

I have a few correctly set up VPN connections and use them frequently with nmcli. This works most times, but occasionally I can't connect any more with none of my saved VPNs: ...
0
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0answers
32 views

Wired connection of Qualcom card not working, can't compile drivers

I am using ubuntu 14.10 and I can't get my wirdec connection to work: srd@ubuntu:~/Downloads$ ifconfig lo Link encap:Local Loopback inet addr:127.0.0.1 ...
4
votes
0answers
60 views

ssh: connect to host github.com port 22: Connection refused

So I followed the guide on how to add a SSH key to GitHub, and added a new SSH key with a passphrase to GitHub and the SSH agent. Now, if I run ssh -T git@github.com as described in the guide to test ...
-1
votes
1answer
23 views

Issue with gnome-connection-manager

I use Ubuntu 14.04 with gnome-connection-manager. Everything worked well, but then gnome-connection-manager crashed and now I can't start it. The process is not running and a reboot did not help. ...
0
votes
2answers
37 views

Why I can't I telnet to a specific port?

the port 7778 is in listen, netstat -tulpn tcp 0 0 127.0.0.1:7778 0.0.0.0:* LISTEN 22776/java but I can't telnet that port from remote machine while I can telnet other ...
0
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0answers
20 views

connection sharing between ubuntu 14.04 and xbox 360

I have an xbox 360 and a laptop with Ubuntu 14.04. What I want is to share the wireless internet connection of my laptop with my xbox via an ethernet cable. How can I set this up?
0
votes
0answers
21 views

Ethernet on laptop only works occasionally

The Ethernet connection on my laptop works only occasionally. Wi-Fi on my laptop works, so the problem does not seem to be with the Internet connection. Plugging in the Ethernet cable and turning off ...
2
votes
2answers
520 views

Wifi problems with rtl8723be in Ubuntu 14.04

I have dual booted my Windows 8 laptop with Ubuntu 14.04. The wifi driver is Realtek rtl8723be. It didn't use to work but I updated the kernel to 3.18 and reinstalled the driver and that seemed to ...
0
votes
1answer
97 views

Problem with Wireless Network (broadcom 802.11 b/g bcm4312) on Ubuntu 14.04

I installed Ubuntu 14.04 alongside Windows 7 recently. On booting to Ubuntu, I have a problem with connecting to wireless internet. The wired LAN is working properly. The Broadcom Wireless Adapter has ...
0
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0answers
17 views

Ubuntu 14.04 Wireless Connection Drops

My Wi-fi connection works for about 5 minutes, until I can't load any page. After some time of not being able to load anything, the toolbar at the top indicates that I have been disconnected from ...
2
votes
2answers
10k views

Ubuntu 14.04 Network Problem

I have an issue with my Ubuntu 14.04. I am able to connect to wireless networks without any problems, but when I am in my Dorm Room, I cannot connect to my wired Internet connection. It works fine ...
0
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0answers
26 views

Issue with network connectivity on Ubuntu 14.04 LTS

I have a dual-boot Dell desktop with Windows 7 and Ubuntu 14.04 LTS and one physical network drop. The Windows side connects without issue. The Ubuntu kernel does not want to connect to the network. ...
0
votes
1answer
59 views

Wifi keeps dropping connection

I am running Ubuntu 14.04 on a Thinkpad X230 with Intel Centrino Advended-N 6205 wifi. On my home network everything is fine, but at work the connection keeps dropping after a minute of being ...
0
votes
1answer
45 views

connection lost Netgear A6200 Usb adapter on 14.04

I am having the issue with Ubuntu 14.04 with Netgear A6200 wireless Usb adapter. I set up my A6200 Wireless Adapter as described in another thread ...
0
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0answers
42 views

sftp not uploading in Ubuntu

I have installed filezilla and I am trying to upload on a server one small html file via sftp. filezilla connects fine to the server, lists the remote dirs and lets me browse through them but if I try ...
0
votes
0answers
39 views

Installed Ubuntu 14.04 LTS, Wired and WIreless connections availiable, but no/ limited internet access

Greetings Veteran Ubuntu Users! I've tried to solve the issue on my own for the better part of the weekend, but some help would be most welcomed. I'm also new to Linux based-OS. Onto the issue... ...
0
votes
1answer
121 views

ubuntuphone does not connect to ubuntu desktop

My BQ Ubuntuphone is not recognized by my Ubuntu-PC. Is there any special setting on either side to enable the connection?
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votes
1answer
33 views

wifi connection is established but internet is not working

I use a wifi and its works fine. But when i use other wifi connection is established but internet is not working. It seems no data is recived in my ubuntu 12.04(LTS). And the same wifi connection is ...
0
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0answers
48 views

Ubuntu 14.04 can't connect to my specific modem's wifi

My system connects to other WiFi networks without problem, it also connects to my modem with wired connection. But when I try to connect through WiFi, it attempts to connect for a while, the WiFi ...
0
votes
0answers
132 views

Google Chrome browser does not display on Samsung Smart TV with HDMI cable from Ubuntu PC

Google Chrome browser does not display on Samsung Smart TV with HDMI cable from Ubuntu PC. The Firefox browser does fine. I need Chrome as it works with Netflix on Linux and Firefox does not. Any ...
0
votes
0answers
88 views

No internet connection after dual installing Ubuntu 14.04 beside Windows 8.1

I just installed Ubuntu 14.04 along side Windows 7 and I had access to my wifi networks. But since I upgraded to Windows 8.1 and installed Ubuntu 14.04 along side, I can't even connect to my wired ...
2
votes
1answer
32 views

Unable to go online but still able to ping, either with wlan0 or eth0

I have a Dell Inspiron 17 r 5737 with Ubuntu 14.10. Ar the moment, my laptop is able to connect both to eth0 and wlan0 connections, but I cannot go online with any browser, with apt-get or any other ...
0
votes
1answer
709 views

How to connect a SONY PSP system to ubuntu?

I tried to connect my SONY PSP e1004 on to my UBUNTU 12.10 desktop,But no result.Nothing happens.What will I do? I must connect my PSP to computer for file and games sharing.Tell me what to do!
0
votes
1answer
44 views

Wired Connection Stoped working after update

My desktop is an old DELL that originally ran on Windows XP. Ubuntu 12.04 makes it run like brand new. After a bunch of updates the wired connections stopped working. Network Connections reads; ...
3
votes
1answer
196 views

Ubuntu 14.10 can list Wi-Fi but won't connect

I have Ubuntu installed on my SSD and moved it around to boot different PCs. I was using it on my laptop which has a builtin Broadcom card and it was working as expected. One day, it stopped working. ...
-1
votes
1answer
30 views

Problem with deleting photos in Dropbox

I can't delete the photos from my full dropbox. It says to retry because I'm not connected. What is the problem and how can I get more free dropbox space
0
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0answers
164 views

Error updating Ubuntu14.04

I am getting this error while trying to upgrade: Please help!! Reading package lists... Building dependency tree... Reading state information... The following packages have been kept back: ...
0
votes
0answers
30 views

SSH connection freezes

I often use SSH to connect to my Ubuntu servers. Lately I got a new provider (Virgin UK) plus a box which I am connected to with a RJ45. Internet in general works fine, but when I build up an SSH ...
0
votes
1answer
127 views

Ubuntu 14.10 (Utopic Unicorn) doesn't connect to wireless networks

I'm using 6-7 years old LG MB500, just installed Ubuntu 14.10 (Utopic Unicorn), and I can't connect to my school network (WPA-WPA2 ENTERPRISE,TLS, MSCHAPv2, no CA certificate). The computer displays ...
0
votes
0answers
62 views

Ubuntu Wifi connection works but no internet

I'm using Ubuntu 12.04.1 LTS. Whenever I start up Firefox it says "server not found" despite the fact that wifi connection seems to be established. I would appreciate if anyone can help — Gabriel ...
1
vote
1answer
433 views

How to setup and connect Teletalk 3g modem in ubuntu 14.04?

I am very fond of Linux and recently installed Ubuntu 14.04. I am having issues trying to connect my Teletalk 3g modem in Ubuntu 14.04 for mobile broadband. If anyone could provide step by step ...
0
votes
2answers
27k views

SSH connection refused when connecting remotly

I set up my Ubuntu server and it can connect to itself when running ssh localhost. However, when I run Putty on windows 8 I get a "connection refused" error. I have, to the best of my ability: ...
0
votes
1answer
99 views

UBUNTU/PHP: Can not connect to sql server 2008

We took a copy of our Ubuntu virtual server and changed its name and IP. In every other way it is a duplicate of our production server. Now for some reason we can't get php connection to SQL-SERVER. ...
3
votes
1answer
77 views

How to connect to a laptop running Ubuntu on the same home wireless network?

I am running Ubuntu 14.04.1 LTS 64-bit on both of my laptops and they are both connected to the same home Wi-Fi at the moment. I want to connect to the other computer via one of the computers, say ...
0
votes
1answer
40 views

Connecting to internet through bridge

I'm trying to connect my ubuntu desktop to the internet but my wireless card doesn't work on it. I have a Windows 7 desktop sitting next to it which connects to the internet through wifi so I'm ...
0
votes
1answer
253 views

Open VPN connection doesnt work after reboot Ubuntu 14.04

First I like to thank anyone who is giving these great answer here ! Im a new Ubuntu user and still on learning curve. After 8 years of OSX it is been harder than I expected. Two weeks ago I installed ...
2
votes
1answer
121 views

(Solved) 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 ...
11
votes
3answers
20k views

What does “ping: sendmsg: No buffer space available” mean?

I had an intermittent issue (which resolves itself spontaneously, after using a different connection for a while) that caused Internet requests to fail, with one particular wireless network. After ...
1
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0answers
30 views

3g modem after playing with ap-hotspot

I got some problems with ap-hotspot and earlier installation of hosapd. Software were removed and now I got some missed option in the network panel - see picture. How to make Disconnect (Rozłącz) to ...