Questions tagged [nmcli]
Questions about the command-line interface for NetworkManager. The command-line interface is available at least from Ubuntu 12.04.
94
questions
1
vote
1
answer
64
views
How to read wifi connection info on Ubuntu Server 24.04 with netplan, do i need nmcli?
I'm setting a simple server using an old laptop with ubuntu server 24.04 fresh install (yesterday).
Wifi works nice, but I want to see connection details, if it's using 2.4 or 5GHz and also link speed....
- 11
0
votes
0
answers
54
views
Change the subnet mask using nmcli
Directly doing this is pretty simple;
sudo ip addr del 10.0.5.8/16 dev eth4 && sudo ip addr add 10.0.5.8/24 dev eth4
What's the equivalent notation when using nmcli? Just doing this is not ...
- 51
0
votes
0
answers
56
views
Why do I need to manually restart NetworkManager service after each boot to "detect" the bind9 server?
Both instances are Ubuntu Desktop 22.04.4.
1. I installed bind9 on a first Ubuntu instance (IP 192.168.1.94):
/etc/default/bind9
OPTIONS="-u bind -4"
/etc/bind/named.conf.options
acl "...
- 1
0
votes
0
answers
29
views
Problem at detecting network connections
I made a fully exchange of disks, like taken from another computer, to my computer. It boots up, everything works fine, except that i run nmcli d wifi list and nothing shows up.
I connected an ...
0
votes
0
answers
155
views
Error: Connection activation failed: The Wi-Fi network could not be found
I am having a lot of trouble connecting to the network. I am running on a raspberry pi 4 with Ubuntu 20.04 Server (no gui) and I've chosen to do my configuration with nmcli. I "know" that my ...
- 173
0
votes
0
answers
66
views
turning wireless interface off
I am creating a hardening tool where i need to turn off all the wireless interfaces,
is the command nmcli radio all off enough for that purpose, or should i be doing something extra, making some ...
- 1
0
votes
0
answers
113
views
Ubuntu 22.04 unable to use JetBlue inflight wifi
I have Ubuntu 22.04.3 running on an Asus Zenbook, exact model UX390UAK. My wifi at home and in coffee shops works fine but on every JetBlue flight I take I'm unable to use their inflight wifi (called ...
- 101
0
votes
1
answer
779
views
Trying to force hotspot to use 5GHz band, but uses 2.4GHZ no matter what
I am creating an experiment where I am using a bluetooth analyzer. I am creating a wi-fi hotspot that must use the 5GHz band so that it doesn't interfere with bluetooth.
I have edited the Hotspot....
0
votes
0
answers
114
views
Some meta state when create bridge on 22.04
It is said that if the system use NetworkManager, you'd better use nmcli, or there may be conflictions between different management systems.
Suppose there is an ethernet connection named eno1 whose ip ...
- 323
-1
votes
1
answer
876
views
Can't Use DNS On Network Manager
I followed a guide by MakeUseOn setting a static IP on Ubuntu Server with Network Manager. After some time, my DNS has stopped working. I have tried using sudo nmcli con mod static ipv4.dns "8.8....
- 11
2
votes
1
answer
2k
views
How to effectively to set a global static ipv6 by `addr-gen-mode=eui64`?
I see there are a lot of questions about static ipv6, and privacy (like here, here, here, here and here), and I believe I have tried most of the available solutions (or at least those I was able to ...
- 207
2
votes
2
answers
2k
views
WiFi adapter not found on NVIDIA Jetson Orin NX running Ubuntu 20.04
My Jetson embedded device has a WLAN SMA-RP Antenna supported by a network controller (Intel AX210) as specified by the manufacturer.
The network controller shown using the command lspci is Network ...
- 41
0
votes
1
answer
2k
views
Is it possible to add a connection by nmcli command without sudo?
I'm working with a lubuntu 22.04 distribution. I need to execute the following command by a user without root privileges:
> nmcli c add ifname enp3s0 type ethernet con-name 'connection-test'
The ...
- 455
1
vote
1
answer
342
views
Script to switch between networks in ubuntu using nmcli
I'm trying to switch between already populated networks using a bash file using nmcli but I'm get non sense data back.
But get nonsense
1) 0
#? 0
Code below.
#!/bin/bash
# Pre-populated UUID data ...
- 2,223
0
votes
1
answer
2k
views
Increase VPN Connection Attempt Timeout to Greater Than 60 Seconds
I have OpenVPN connection that - for some reason - takes too long to connect.
However, when I use the nmcli connection up MyOpenVPN_TCP command it keeps trying to connect for only 60 seconds, and I ...
0
votes
0
answers
451
views
Creating a bridge device using nmcli
I am trying to create a bridge device in Ubuntu 22.04, so I can set it a a default network for KVM guests. I need bi-directional external (non-NAT communication from and to the guests.
I followed this ...
- 1,476
0
votes
0
answers
1k
views
state is disconnected and Connectivity is unknown in ubuntu 22.04
The State of device eth0 is unmanaged, I had make a connection to this interface and locking a profile to eth0, but not had been happened.
How can I change it's status to managed?
please Help me.
$ ...
- 1
0
votes
0
answers
290
views
How to connect Meraki L2TP IPSEC VPN from Digital Ocean droplet?
I try to connect from my Digital Ocean droplet to my company's L2TP-IPSEC Meraki VPN. I have donwloaded the network-manager-l2tp and already configured it. I try to connect it with this command: nmcli ...
0
votes
0
answers
963
views
When setting up a bridge for KVM, how can autoconnect for ethernet be disabled so the bridge still works after a reboot?
Ubuntu 22.04.1 LTS
Baremetal server, ssh access only
Using nmcli to configure network
Guides followed:
https://www.cyberciti.biz/faq/how-to-install-kvm-on-ubuntu-20-04-lts-headless-server/
https://www....
0
votes
2
answers
945
views
Ubuntu Server 22.04 LTS not finding iPhone Hotspot?
I'm trying to connect to an iPhone 12 Pro Wifi hotspot but nmcli won't even list the SSID. Force connecting to the known SSID obviously also doesn't work. I am able to connect to it using other ...
- 101
0
votes
2
answers
5k
views
nmcli and nmtui both don't allow me to modify a connection. Settings plugin does not support modifying connections
nmcli con mod "Ifupdown (eth0)" ipv4.addresses 192.168.50.188/24
Error: Failed to modify connection 'Ifupdown (eth0)': failed to update connection: settings plugin does not support ...
2
votes
2
answers
676
views
is there a difference between using NetworkManager.conf and using nmcli
In NetworkManager.conf, I can specify
[keyfile]
unmanaged-devices=interface-name:vboxnet0
I can also use nmcli as follows
nmcli device set vboxnet0 managed no
is there a difference between these two ...
- 19
1
vote
1
answer
5k
views
nmcli not showing connection
I imported L2TP/IPsec VPN connection configuration file from Ubuntu mate 20.04 /etc/NetworkManager/system-connections/ to Ubuntu server 20.04
Next, on the Ubuntu server 20.04 PC, I check the nmcli ...
- 31
0
votes
0
answers
219
views
Force network interface with nmcli?
I want to connect to a specific BSSID via nmcli.
I am using the command:
nmcli d wifi connect xx:xx:xx:xx:xx:01
While it kinda works, it wants to force connection via wlan0 network interface.
Is ...
1
vote
0
answers
4k
views
WiFi Direct / Networkmanager / Ubuntu 20.04
I got a case when I need to establish WiFi Direct (WiFi-P2P) by using NetworkManager (nmcli). As for now, I use Ubuntu 20.04. It seems that my network adapter should support WiFi-P2P connections.
iw ...
- 111
1
vote
1
answer
2k
views
Can't select network in GNOME Settings
I connected my Wi-Fi when installing Ubuntu and it is still working; I'm using it right now to write this question. After that, I never opened network settings until now.
That said I'm unable to ...
- 133
2
votes
0
answers
432
views
WiFi networks not showing in Ubuntu 20.04 LTS
I tried to fix my broken grub from a Manjaro live USB using grub-install following which I couldn't connect to wifi networks. I can however use Bluetooth tethering to access internet. Wifi works ...
- 21
1
vote
1
answer
190
views
Is this a security backdoor? [duplicate]
I just realised nmcli commands don't ask me password for sudo access, but ends up modifying a file under /etc/NetworkManager/system-connections/ which is root-only access.
How is this allowed? What's ...
- 144
2
votes
1
answer
21k
views
nmcli: Proper way of scanning WiFi networks
I am writing a script where I need to switch WiFi networks.
How should I scan if the WiFi I want to connect is available or not?
I tried the following:
nmcli dev wifi list
Issue: It lists previously ...
- 31
1
vote
1
answer
3k
views
Issue while checking network connectivity using nmcli in ubuntu 18.04
I am using "nmcli networking connectivity" command to know the connectivity of my wifi connection. After establishing the connection with a wifi & if I see that it has no internet ...
0
votes
0
answers
372
views
2 WiFi-Nets behind a single SSID, how to connect to a specific one?
My wifi router is sending at both 2,4 GHz and 5 GHz ranges.
I want to connect to a 2,4 GHz WiFi.
However my Ubu 20.04 box always connects to a 5 GHz channel under the common SSID.
I can sudo iwlist ...
- 359
0
votes
0
answers
241
views
Use login credentials for NetworkManager connection, preferably encrypted
I am wondering if it is possible to use the login credentials to connect to a wireless WPA2 connection in NetworkManager, e.g. using PEAP.
I need this for any new users. So they should be able to ...
2
votes
1
answer
53
views
List network SSID only
I need to get all nearby network SSIDs. I'm using:
nmcli dev wifi list
Which works great!
But I need just the SSIDs for printing in an app.
Any ideas?
- 23
2
votes
0
answers
645
views
Setting up Hotspot, I get Error: Connection activation failed: No suitable device found for this connection
Using Ubuntu 18.04 and a TP Link WN722Nv2 USB to Wireless adaptor I have been unable to setup a WiFi hotspot.
I have tested the H/W on 18.04, connecting to a WiFi router, which works fine. I have ...
- 21
0
votes
0
answers
4k
views
NetworkManager CLI hotspot: 802.1X supplicant took too long to authenticate
I am trying to create a wifi hotspot/AP using NetworkManager CLI (nmcli).
All works well if I create it for 2.4GHz band=bg. But, if I set band=a for 5GHz, I get a timeout failure from wpa_supplicant
...
- 31
1
vote
1
answer
770
views
Need Fix for NetworkManager Openvpn, prepending extra-path to crt-path
When adding a openvpn ovpn-file through the network GUI (and nmcli too), and trying to connect, it fails.
But it works if I manual are connection with openvpn through the terminal.
After a look in the ...
1
vote
1
answer
2k
views
How to enter SIM PIN with new network manager (Ubuntu 20.04.1)
On my Ubuntu 20.04.1 tablet I try to get WWAN working.
But after insert of the SIM card, there is no prompt for the SIM PIN. Therefore, the ttyHS2 device is "not available", I assume (if ...
- 855
1
vote
0
answers
187
views
Set up laptop as access point
I want to use my laptop as an access point to extend coverage in my house. The laptop is connected via ethernet to the router that also provides the rest of the house with wifi. I can start a hotspot ...
- 263
1
vote
3
answers
2k
views
How do I get my Network (and settings) back in 20.04?
I have lost my network connections (Ethernet, WiFi and Bluetooth) on Ubuntu 20.04.
I don't know what I did to lose them, but after a reboot, they had gone. There is no network icon in the system tray ...
- 696
2
votes
2
answers
5k
views
How to set a static ip address on a local network using NetworkManager?
What I did
I am trying to create a wifi connection with a static ip using NetworkManager. Following are the steps of that process using the nmcli command.
Connection settings,
I created a new ...
- 159
8
votes
2
answers
3k
views
How to add a wifi connection if I'm not within range
I'm refurbishing laptops (Ubuntu 20.04) to hand out to kids as part of combating digital exclusion during COVID-19. Obviously I don't want to give them sudo access, however, I can't enter their houses ...
0
votes
0
answers
699
views
Trouble assigning static IP using nmtui
I am trying to assign static IP to Ubuntu Server (installed in VirtualBox).
To do that I have done the following changes to Server Machine:
Installed Network Manager tools to use nmcli/nmtui.
Set ...
1
vote
0
answers
2k
views
Unable to use USB Tethering in Jetson Nano
I have a Jetson nano that is running Ubuntu 18.04 LTS. I need internet access on the jetson. Currently, the only internet connection that I have is on my phone. I tried to tether my phone to the ...
- 19
2
votes
1
answer
2k
views
NetworkManager via D-Bus: Add a network bridge
I'm trying to use the D-Bus interface of NetworkManager to add and enable a network bridge connection. Basically I'm trying to mimic this command:
nmcli connection add type bridge ifname br0 stp no
...
- 185
6
votes
2
answers
35k
views
What is the correct way to restart nmcli interface remotely?
On Ubuntu 18.04, NetworkManager is used. After modifying the configuration of an interface remotely, using the NetworkManager CLI.
Example:
nmcli connection modify (interface_profile_name) ipv4....
- 61
1
vote
1
answer
813
views
nmcli problem after the installation of network-manager
I installed network-manager.
But the nmcli does not work with the error below.
ens33: unmanaged
...
lo: unmanaged
...
I started bind9 before this by systemctl restart bind9.
I want a ...
1
vote
0
answers
781
views
Wifi adapter will not accept any password (Error 7)
I had to roll back my Kubuntu 19.10 from kernel 5.3.0-24-generic to 5.3.0-23-generic via
sudo apt-get purge linux-image-5.3.0-24-generic
sudo apt-get purge linux-headers-5.3.0-24-generic
because PC ...
- 133
11
votes
4
answers
77k
views
Why is nmcli not configuring device?
I'm new to nmcli and trying to figure out how to create an eth0 connection. sudo nmcli con prints the following:
NAME UUID TYPE DEVICE
MyWlan0 ... wifi wlan0
MyEth0 ......
- 293
2
votes
1
answer
109
views
Connection issue in Ubuntu 18.04, everything looks good
I was setting up a TOR connection and all of a sudden I can't connect to anything. I've uninstalled TOR and I can't get connected to my wireless router.
The icon shows connection, and nmcli general ...
- 21
2
votes
2
answers
10k
views
Rescan network with nmcli
I am writing a small script to continuously scan wifi network. I am using nmcli for that purpose :
nmcli device wifi list
I periodically (every x seconds ) call this command in my script to search ...
- 152