Questions tagged [connection]
Questions concerning network connections.
832
questions
43
votes
4
answers
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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 ...
- 431
28
votes
2
answers
158k
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.
- 383
26
votes
2
answers
164k
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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 [email protected] as described in the guide to test ...
- 363
25
votes
2
answers
119k
views
Get a list of network connections my machine is making
On Ubuntu, how do I get a list of network connections my computer has made in the last few days? Is there a easy way to do this?
- 845
23
votes
2
answers
60k
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How to get connection to both wifi as well as LAN in ubuntu 14.04 LTS?
On my Ubuntu 14.04 LTS laptop, I have a LAN connection with a static IP address as well as a WiFi connection to the internet using DHCP. LAN connection goes to a switch and WiFi connection from a WiFi ...
- 231
20
votes
2
answers
158k
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How to copy files between two computers using SSH [duplicate]
Situation: I have 2 computers: Pc_A and Pc_B. I am also using a SSH connection that goes from A to B.
My problem: I have a folder saved on the desktop of Pc_A and I need to copy it to the desktop of ...
- 577
18
votes
2
answers
10k
views
Is an Internet connectivity indicator applet available for the Unity panel?
Because my internet connection is very unstable at the moment, I'd like to use a small indicator applet for the Unity panel.
Since I'm connected through a WLAN/Wifi Router, I can see in the network-...
- 509
15
votes
5
answers
27k
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.
...
- 301
15
votes
4
answers
25k
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 ...
- 1,007
14
votes
6
answers
7k
views
SSH resets to default port on reboot
I changed my default SSH port on my home server (in the /etc/ssh/sshd_config file) to port 54747, then restarted the ssh and sshd services (never sure which one so I did both just to be safe). To test ...
- 313
12
votes
4
answers
15k
views
Problems Connecting MSN with empathy
I don't know if I am the only one with this bug, but I can't use my MSN account with a freshly installed Ubuntu 11.10 with Empathy. It used to work with my Arch Linux, but now with Ubuntu, it ...
- 1,001
11
votes
7
answers
22k
views
How to get the connected wifi network ssid?
I want to obtain the currently connected wifi networks ssid in a bash script. I am trying to write a backup script where the script will perform a backup to a NAS server if it's connected to my home ...
- 343
11
votes
3
answers
18k
views
How to clear server or network share connection history in Ubuntu 13.04
How can I delete connection URLs present in File > Connect To Server
For security reasons I want to remove all these connection URLs to which I have connected.
- 111
10
votes
7
answers
91k
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 ...
- 1,956
10
votes
3
answers
22k
views
Deluge daemon connection?
My deluge-console is suddenly giving me this error
Failed to connect to 127.0.0.1:58846 with reason: Connection refused
why is this error.I have done nothing and the GUI deluge runs fine.Its the ...
- 979
10
votes
4
answers
23k
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 ...
- 101
9
votes
4
answers
7k
views
How to determine which WiFi technology is currently used in connection?
I would like to check which 'technology' (a/b/g/n) is currently used by my WiFi card for the connection and to check which standards it can use.
How can I check that ?
EDIT
Alright, I have tried ...
- 9,206
9
votes
5
answers
18k
views
Why can't Ubuntu access my Raspberry Pi across LAN?
Okay, I recently got a Raspberry Pi, and I got it connected to my Wi-Fi - I enabled the SSH and installed Hiawatha, and I could access it just fine from my Desktop, which was running Puppy Linux at ...
- 1,975
8
votes
2
answers
24k
views
What should my MAC address be? (now shows 00:00:00:00:00:00)
I have three computers all wired into my router. The box I'm posting this from is running Ubuntu 11.10, and another machine is running Xubuntu 11.10 Both connected automatically when the ethernet ...
- 1,468
8
votes
3
answers
6k
views
Topic: Ripper X & Asunder CD Ripper
I happen to be an old fuddy duddy who still rips CD's (Thanks for not laughing out loud), when I went from Ubuntu 19. something to Ubuntu 20.04 both Ripper X and Asunder are unable to connect to the ...
- 81
8
votes
2
answers
5k
views
Shell script to ban an IP
Some of the IPs are opening thousands of connections of my server. I have a Ubuntu 14 server. I check total connections using following command:
netstat -an | grep tcp | awk '{print $5}' | cut -f 1 ...
- 81
8
votes
4
answers
21k
views
'Activation of wireless network connection failed' error with a BSNL BroadBand modem# DNA-A211-I
I'm getting the message 'Network Connection Failed' frequently when I connect to wifi using 12.04. I was using the same connection without any problems, in Ubuntu 10.04 and Windows Vista. What might ...
- 83
8
votes
2
answers
34k
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 ...
- 411
8
votes
4
answers
13k
views
Is it possible to use nmcli completely without nm-applet?
Since I don't use GNOME now and try wmii, the nm-applet is no longer available for me.I know there is nmcli for the control. What I'm really interested in is that can it really be a substitute for nm-...
- 292
7
votes
1
answer
8k
views
Why do Ubuntu Servers connect to likho.canonical.com:80?
We have some Ubuntu 12.0.3 servers in our network and I can see several denies per day on our physical firewall.
The Ubuntu servers are attempting to connect to 91.189.91.15 (likho.canonical.com) ...
- 73
7
votes
6
answers
42k
views
My browsers can not connect to the internet while my Ubuntu is connected
I am using Ubuntu 1604, and I am connected to a WiFi network.
My computer is connected, I can download and install updates, I can use skype, telegram desktop and everything but my google chrome ...
- 75
7
votes
6
answers
12k
views
Ubuntu 22.04.1 LTS - Hotspot - Connected but without internet on Android 11
After upgrading to Ubuntu 22.04, the hotspot didn't work correctly anymore. It worked well on version 20.04.
I have tried some solutions like removing the old Hotspot and creating a new one without ...
- 161
7
votes
3
answers
10k
views
Which process is accessing which IPs?
After installing Conky and listing all my inbound and outbound connections I start to wonder what's actually happening and what and why things are happening.
I'm getting a bit suspicious. How can I ...
- 699
7
votes
3
answers
5k
views
Cannot connect Ubuntu to starbucks wifi network
Sometimes the network at Starbucks accepts me automatically with out asking me to accept the terms and conditions, etc. And sometimes when it doesn't accept me, this is what I see.
Of course, this ...
user618442
7
votes
1
answer
10k
views
How do I connect to a VPN in GNOME-Shell?
I used to be able to choose "connect to vpn" from the network-indicator in Ubuntu but since I've upgraded to Ubuntu 11.10 I'm only using GNOME-Shell and I can't find any way to connect to a VPN from ...
- 1,143
7
votes
1
answer
4k
views
Unable to login to steam ; Steam is having trouble connecting to the servers
Since Steam came out on Ubuntu (official) I've installed it and tried to log in but it didnt work at that time. I thought the servers were offline and I would try it later again.
Steam is giving me ...
- 71
6
votes
2
answers
7k
views
Can not connect Arduino IDE with Arduino Board on Ubuntu 22.04
I have freshly updated my Ubuntu 20.04 to the new 22.04 LTS release.
I have installed the Arduino IDE and add my user to the groups tty dialout uucp plugdevs.
When I connect my Arduino Nano per USB to ...
- 202
6
votes
7
answers
6k
views
What are common causes for greatly decreased internet speeds?
Two days ago I set my computer up to dual-boot with Windows 7 and Ubuntu 11.04.
On windows 7, my download speed averages around 500kb/s, regardless of time of day.
On Ubuntu, downloading simple ...
- 63
6
votes
1
answer
10k
views
Nautilus - Connect to Server option not visible [duplicate]
I recently installed Ubuntu 18.04. I read that the file manager Nautilus can be used to transfer files to and from remote servers. I also read that one can do this by selecting "Connect to Server" ...
- 163
6
votes
2
answers
16k
views
Cannot connect to eduroam from ubuntu
I am trying to connect to eduroam from Ubuntu, and it asks me for certificates. I asked my college tech support and the answer I got was "I don't know anything about Linux or Ubuntu, all our machines ...
- 481
6
votes
2
answers
19k
views
Ubuntu Server 18.04 setting WiFi connections when install
I want to install Ubuntu Server 18.04 with WiFi connection, but there are no WiFi interface options, how can I do now ?
- 61
6
votes
1
answer
3k
views
Wifi Connection Issues on Ubuntu 16.04
Everything was working fine until I upgraded my Ubuntu version to 16.04 recently.My wifi gets disconnected after every 10-20 mins. Sometimes it gets even worse and it gets disconnected in just 5 mins.
...
- 303
6
votes
2
answers
1k
views
Does the Ubuntu One sync work?
I have been on this for several hours now, trying to get a simple second folder to sync with my (paid) account.
I cannot tell you how many times I removed all devices, removed stored passwords, ...
- 353
6
votes
2
answers
12k
views
"RTNETLINK answers: Input/Output error" given when trying to bring interface up
This issue seems to have happened to many people in the last years, and I could find it discussed in several forums and questions around.
However, most of such discussions ended up dying without clear ...
- 275
6
votes
1
answer
12k
views
Ubuntu 12.04 LTS - Apple iPad 3 (iOS 7 non-jailbroken) USB connection problem
I've bought an Apple iPad 3 (iOS 7 non-jailbroken), and I'm trying to connect it to my PC running Ubuntu 12.04 through the original USB cable.
After I plugged in the cable, I got this message on the ...
- 63
6
votes
2
answers
4k
views
Unable to connect to wired DHCP connection via my PC?
Hi As I upgrade my pc to ubuntu 11.10 I can't connect to the wired connection ! It doesn't even find my Device MAC address !!What can I do ?
ifconfig -a
eth0 Link encap:Ethernet HWaddr ff:ff:...
- 846
6
votes
1
answer
976
views
Why does Network-Manager close when it cannot bind to any connection?
When Network-Manager is not able to bind my Ubuntu to any connection, after a while it closes. The icon in the notification area (or indicator area) disappears, and it does not run any more. For ...
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5
votes
1
answer
8k
views
Can't use internet because networkmanager has disappeared !! (Ubuntu 20.04 LTS)
I need help, and it is quite urgent.
I had connections issues (my Wi-Fi connection kept disconnecting)
So I followed what a member of this community recommended, in a similar post written by a fellow ...
5
votes
1
answer
13k
views
Can establish connection, but still get "connect: Network is unreachable"
I have an Asus E402NA laptop. I installed Ubuntu 16.04 on it. At the end of the installation the installer crashed, but I am still able to boot and start up Ubuntu (not sure if this is helpful ...
- 53
5
votes
2
answers
4k
views
Bluetooth earbuds constantly reconnecting (Sennheiser Momentum TW 2)
i'm running currently Kubuntu 20.04 and trying to connect new earbuds (Sennheiser Momentum true wireless 2) but i get the earbuds connected and after a second disconnected, then it tries to connect ...
user1102715
5
votes
1
answer
16k
views
Network Unreachable - Ethernet
I'm trying to get my new Ubuntu Server install connected to the internet, but Im running into an issue. I cant even ping the router that the server is directly plugged into via Ethernet. I've tried ...
- 172
5
votes
1
answer
3k
views
Citrix not connecting in ubuntu 20.04
Cannot connect to. Address family not supported by protocol. Verify your connection settings and try again.
EVerything was working fine. Suddenly, I am getting this error. I deleted the softlink for ...
- 111
5
votes
2
answers
1k
views
How do I tether to a Nokia E61 mobile phone?
I have a Nokia E61 mobile phone with 3G internet connection. When I connect it to the computer via USB cable and choose IP pasthrough, this line appears in the list of network connections:
Wired ...
- 867
5
votes
2
answers
5k
views
Internet connection not working although it says it is connected
I have a Toshiba z830 with ubuntu 12.04. I could use without problems the DSL connection (I have no router, only a modem) at home until a couple of days ago:
It stopped to work when while connected ...
- 65
5
votes
2
answers
1k
views
Why does the Ubuntu Software application think I am offline when I am online for all other applications and services?
I can update my system using apt and the Software Updater application on my Ubuntu 21.04 laptop. But I can not longer use the Ubuntu Software application. It keeps telling me "Go online to check ...
- 1,749