Questions tagged as ['connection']

Questions concerning network connections.
Score: 0
Gigiux avatar
Failure in pairing bluetooth device in Ubuntu 21.04
eg flag

I see that failure in pairing Bluetooth devices is commonplace. I have Ubuntu 21.04, I plugged a Bluetooth 4.0 Adapter Dongle, the device (headphones) is visible but no pairing is obtained. I checked the status of the Bluetooth and it seems to me it is running:

sudo service bluetooth status
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendo ...
Score: 0
JONH avatar
How can I connect 2 or more vpn servers at same time between users on same PC?
ck flag

I need to connect to different countries on nordvpn at same time between users, what do I have to do? I bought a Nic (internet card adapter via usb). I'm not sure what to do next.

Score: 0
HiteshDSharma avatar
UBUNTU 20.04 DELL LATITUDE 3420 system is not getting connected to the internet all of a sudden
cn flag

UBUNTU 20.04 DELL LATITUDE 3420 system is not getting connected to the internet all of a sudden. Earlier I was able to connect to the internet.Requessing any successful resolutions please.

Score: 0
Gigiux avatar
I installed firewall-configuration and lost the wifi
eg flag

to keep the PC safe, I installed firewall-configuration from Ubuntu software:

enter image description here

As soon as the installation was over, I lost the WiFi connection (and even Rstudio cannot connect with R, by the way). I removed it with sudo apt-get remove firewall-config but the WiFi is still dead.

How can I reestablish the wifi? and do I need a firewall in ubuntu? and an antivirus? (if yes, is clamAV OK?)


Score: 0
Vin Raghav avatar
How to see and manage the connected devices on your Ubuntu hotspot?
cn flag

I would like to check how many devices including mine are connected to the active hotspot, and perhaps manage the devices by kicking out unwanted devices that might be connected to my hotspot. I was surprised to find no such options avaliable in Ubuntu as almost all mobile phones have it.

Score: 0
Legit4K avatar
Ubuntu 20.04.2 Temporary Failure in name resolution
es flag

About 2 weeks ago my VM became unreachable from the Internet - I can't access it via ssh, I can't access the files stored on it but I can ping it. I have KVM VNC Setup for it so I logged on and I tried to ping but it resulted in the Temporary failure in name resolution error. However, it is successfully able to ping IPs directly such as the DNS Server and any public IP.

I've bee ...

Score: 0
Wejdene avatar
Mouse detection
br flag

My mouse suddenly stop working like it is freezing , it happens sometimes but when i unplug it and plug it again it works but this time it does not work at all

information about mouse : wired through a USB , optical

I recently deleted some packages through sudo apt autoremove command and here is the list :

gir1.2-xkl-1.0:amd64 (5.4-4), python3-icu:amd64 (2.4.2-0ubuntu3), libllvm9:amd64 (1:9.0.1-12) ...
Score: 1
rozTsoni avatar
Wired network connection keeps disconnecting
za flag

Recently, I've been trying to install and setup a Synology NAS server (DS920+) on our Ubuntu server (18.04) at work, and I am facing some connection issues with the wired connection (ethernet connection connecting NAS to the server). The connection status shows that it's trying to connect as seen in the figure here [connection status][1]

But after a while it changes to connection "Disconnected" a ...

Score: -1
カラス avatar
How to use two Ethernet connections at the same time (on single pc) on Ubuntu 21.04?
dk flag

I don't know how to use two Ethernet connection simultaneously on single PC. I was searching about this problem at least 4 hours, but I have no clue how to do it.

I am using Ubuntu 21.04 on this PC, this PC is connected to 2 other PCs. The first PC is used to receive files from this PC and the second one I use for remote desktop (second PC is in another room). Both PCs are connected via Ethernet  ...

Score: 0
libel avatar
no internet time out
br flag

I'm trying to download files to the server with some commands like

git clone

And everyone gets a connection timed out response Only ping gets a response connection is correct I'm trying to figure out where the problem is I checked and there should be no firewall for outbound connections but for inbound

Score: 0
Unsyvylyzzd avatar
Internet connection disables permanently when logging in and out of different profiles
in flag
Linux 4.15.0-154-generic #161-Ubuntu SMP Fri Jul 30 13:04:17 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.5 LTS
Release:    18.04
Codename:   bionic

It's on a Lenovo G50 laptop.

I have three user profiles set up on the machine. Only two are ever used. One (the administrator, myself) stays logged in usually, and uses the  ...

Score: 0
Fabian avatar
Bridge network suddenly stopped working (18.04)
cn flag

My Desktop is getting weird. I have Ubuntu 18.04 with a bridge set up (for my gaming VM) and until yesterday all worked fine. Booted up today, no network connectivity. I have no idea where the issue lays, the logs are not very helpful to me. The only thing i changed so far is disable STP for the bridge as that was mentioned in a couple google results I looked at...

root@pc-f-linux:~# ip a
1: lo: &l ...
Score: 0
TransmissionZ avatar
No Bluetooth Hardware on Ubuntu 20.04
in flag

I've HP Laptop, setup on Dual Boot with Windows 10.

Bluetooth works normally on Windows 10 but it doesn't seem to work on ubuntu. I read 100's of threads with no luck, finally posting a question here.

Terminal Output of some commands I tried:

> ● bluetooth.service - Bluetooth service
>      Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
>      Active: a ...
Score: 0
user5958076 avatar
Wifi connection worked initially
de flag

I installed lubuntu 20.04, and was able to connect to the Internet allowing me to download a full upgrade according to the system and was able to download an installer for google chrome. It asked to be rebooted before installing chrome. Upon restarting, the device could see all available wifi connections in the house, but when choosing to connect, it said the connection was lost. I use a generic WiFi d ...

Score: 1
Prajwal Sagar avatar
How to make KDE connect launch at startup?
cx flag

I was wondering if there is a way to make KDE connect Launch as soon as the system boots/reboots. I always have to open the KDE connect app to make sure an instance of it is running in the background, is there a way to make sure that it launches as soon as the system is started?

What I have tried: I tried to emulate something I saw for other apps which is executing these commands in the terminal  ...

Score: 0
VPN connection time-out
cn flag

here are the network manager logs

-- Logs begin at Thu 2021-06-10 23:01:25 IST. -- Jul 15 13:31:49 nbtlpi519b1824 nm-openvpn[22490]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts Jul 15 13:31:49 nbtlpi519b1824 nm-openvpn[22490]: TCP/UDP: Preserving recently used remote address: [AF_INET] Jul 15 13:31:49 nbtlpi519b1824 nm-ope ...

Score: 0
Amel ha avatar
sqoop import job failed
pw flag

I have tried to import a table into HDFS using this command. At the end it said import job failed. I saw people mentioned to configure the mappred-site.xml. The configuration was done correctly and yet I still have this error. I found the file named "myTable" in HDFS but there was no data.

   sqoop import --connect jdbc:mysql://localhost:3306/testDb --username Amel --password Amel@-1998  --table myTab ...
Score: 1
Kayaking_t avatar
LAMP server time out
cn flag

I have a LAMP server (no M since I don't have a need for a database) where I am posting pictures to the server using PHP. Everything is working fine and then all of a sudden my devices can no longer connect to the server. When I issue a reboot command (through SSH as I'm still able to connect that way) the units can successfully post again, for a given amount of time (not yet determined - hopefully late ...

Score: 0
Amel ha avatar
sqoop won't connect to mysql
pw flag

I am trying to connect Sqoop with Mysql. Before I asked this question I have tried all of the solutions I searched for, but nothing worked for me.

This is what I'm typing

/usr/local/hadoop/sqoop/lib$ sqoop list-databases --connect jdbc:mysql://localhost:3306/testDb --username Amel --password > Amel@-1998;

I do have a SQLConnector installed in /usr/local/hadoop/Sqoop/lib/ directory.

It's called: ...

Score: 2
Masterninja07 avatar
How to make unlimited mobile hotspot trick work on linux?
br flag

I recently dual booted into ubuntu because my Windows os is very slow to multitask. Surprisingly, when I tested most of my workspace in ubuntu, it can handle them very well than windows did (basically alt tabbing in windows took ages alongside the not responding message).

Now I planned to change my main os to linux but I ran into trouble when I wanted to do the unlimited hotspot trick on linux. I ...

Score: 0
Nico1300 avatar
Extreme slow internet connection on Ubuntu Server
us flag

My ubuntu server is connected with ethernet cable to the same router as my pc but doesn't nearly get the same speed. I have around 40mbit/s on my pc but my ubuntu server only gets 0.3mbit/s. They have same priority on the router settings, and other devices in my network work fine.

sudo lshw -C network shows

       description: Ethernet interface
       product: 82579LM Gigabit Network Co ...
Score: 0
New Ubuntu User avatar
Putty Connect Issues
za flag

I am trying to ssh into a virtual machine using putty. The VM has my public key and I am able to connect to the VM when I am using one internet connection but when I go to another location the connection times out and I cannot connect.

I believe this is an AWS EC2 server but do not have that information on my side.

Has anyone encountered a similar situation? Any help would be greatly appreciated.

Score: 0
ayorgo avatar
ipv4 websites hardly reachable with a particular wi-fi network on a particular device wereas ipv6 ones work fine
ph flag

Can hardly reach most high profile websites (e.g., under a particular Wi-Fi network with the particular laptop regardless of the browser used. However, Google-affiliated sites (e.g., work without issue.

Had not experienced any issues before with the laptop using any other Wi-Fi networks around Europe (airports, c ...

Score: 1
Log process for outgoing connections
cn flag

Is there an easy way to set up logging of all outgoing connections to certain ports, for example? Trying to figure out which programs/processes causes certain outbound connections.

Server is already using UFW, and logging these connections, but there is no indication of "who" is causing them.

lsof and ss does not seem to be able to listen continuously like this?

Score: 0
Rahat Shah avatar
trying to connect android to Ubuntu through USB thetering but not working. The connection establishes successfully for 5sec then interrupts
us flag

I have recently installed Ubuntu on my Desktop pc. I am trying to connect to the Internet Using my android Mobile usb thetering option. When i connect my android to CPU and turn on USB thetering, the connection establishes for upto 5 seconds then interrupts. The annonying things is, in the 5 seconds time of connectivity, i can use internet (I tried opening youtube which worked successfully). But  ...

Score: 0
figs avatar
Wired connection works for a while after fresh install then stops
mh flag

Have an unused laptop that I want to run Ubuntu on (and leave in a corner to run various scripts). I installed Ubuntu Desktop and a wired connection worked for a while then just stopped working (wifi works). I re-did a fresh install and it works for a while then stops working. There is nothing wrong with the cable or connection; I tried two different ethernet cables on two different laptops as well, the ...

Score: 2
nhey4kit avatar
Cannot connect bluetooth W-Touch touchpad to ubuntu
in flag

I just bought a nice touchpad, working on Windows 10 but I'm not able to run it on Ubuntu 20.04 and I'm pretty sure there is a way to do it. Product link :

My bluetooth settings don't see it but in command line, with bluez, GATT or with this scan command I see it :

hcitool lescan

When I found the MAC adress I tried this command line with GATT tool :

gatttool -b < ...
Score: 4
Why does the Ubuntu Software application think I am offline when I am online for all other applications and services?
cn flag

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 for updates" and the update button top left is grayed out. I can install applications with Ubuntu Software. It's only checking for updates that doesn't work. I have checked repositories, even switched to another ...