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Questions tagged [networkmanager]

NetworkManager is an application tool to simplify the multi network model on a single or multiple interfaces.

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nmcli no longer allow settings modification?

When I try to modify network manager settings with nmcli, it says Error: 'con' command 'modify' is not valid. So if nmcli con modify XXX command is no longer supported, what is the substitute? EDIT ...
daisy's user avatar
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7 votes
1 answer
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Use network-manager in different netns

In continuation of my last question about using netns as a relugar user, I'm now looking for a way to open VPN tunnels as a regular user. So I naturally thought about network-manager. Any user can ...
Raspbeguy's user avatar
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7 votes
4 answers
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Elementary OS shows WiFi networks, but won't connect

In the top bar, clicking the network icon shows a list of networks. My school's network, which on Windows I would connect to, and then visit a login page in Chrome in order for it to work, shows on ...
Connor Elsea's user avatar
6 votes
1 answer
6k views

How to debug DHCP timeout on WiFi connect?

I've recently moved to a place with public WiFi (so I don't have access to the router or their DHCP config), and am running into issues connecting with my Arch laptop. I've tried using both ...
Birjolaxew's user avatar
5 votes
1 answer
819 views

How can i find out which network interface managing solution is used on a given linux distribution in an easy and robust way?

I frequently find myself sitting in front of various different Linux installations and need to check or change network settings. They are different versions from different distributions (mostly debian ...
Sorontik's user avatar
5 votes
0 answers
356 views

Excluding specific routes from VPN when connecting via NetworkManager

I am using NetworkManager's openconnect plugin to connect to a VPN server. I would like to exclude specific routes from VPN so that they go outside the VPN. How can I do that with NetworkManager/...
Robert Munteanu's user avatar
5 votes
2 answers
7k views

How can I solve wifi connection problems between Arch Linux and a WPA2 network?

My home network uses WPA2 for encryption. To connect to it from my Arch Linux insallation, I first tried using NetworkManager, however, that only managed to connect for a minute at most before ...
Macha's user avatar
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4 votes
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Correctly configuring split dns with systemd-resolved?

I would like requests for hosts in the example.com domain to go to a local DNS resolver hosted at 172.31.64.1, and all other requests to be handled by the default resolvers. The resolver at 172.31.64....
larsks's user avatar
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4 votes
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Set arbitrary or random computer name when connecting to public wifi

I am not sure about the correct terminology of what I want to achieve. Here is a hand-waving description: When connecting to a (usually) public WIFI spot, I want that spot to not know my computer name ...
bliako's user avatar
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4 votes
0 answers
573 views

How do I make Network manager jump to higher priority network

Bassicly I have 2 networks "a" & "b". Network "a" has autoconnect priority of 5 and "b" a priority of 10. And autoconnect enabled on both. Network "b&...
Nathan Johnson's user avatar
4 votes
0 answers
2k views

force interface up despite no carrier using ethtool/nmcli/iproute2?

I'm interested in knowing if it's at all possible in Linux or Unix to force a interface in a "up" state despite there not being a carrier, meaning # ip link enp3s0f0: <NO-CARRIER,...
Torxed's user avatar
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openconnect doesn't work after suspend, I have to reboot to get it to work again

I have the following situation: I am connected to a VPN via openconnect. I disconnect (for example because I suspend my computer), and then when I try to reconnect, openconnect gives me the following....
Berber's user avatar
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4 votes
0 answers
492 views

Where can I set advanced settings (like fast_reauth) in network-manager?

Is there any possibility to change "advanced" default settings in Linux Mint's network-manager (like fast_reauth=0)? I can see that there are config files in /etc/NetworkManager/system-connections/, ...
colidyre's user avatar
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4 votes
0 answers
1k views

wifi - maximum number of pending replies per connection has been reached

Sometimes, my wifi internet connection gets interrupted which i can see when the leds in the wifi modem goes off. Now, when the connection resumes (i mean, the green led starts glowing in the modem),...
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4 votes
2 answers
5k views

Fedora 31 drops wifi connection after some time

I'm using Fedora 31 on my Notebook. Everything works well, except for Fedora dropping the wifi connection after a while, making it necessary to reconnect to the network. Every few minutes after ...
Noah's user avatar
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3 votes
0 answers
2k views

Disabling 802.11ac/802.11ax only for specific connections?

My laptop has an Intel AX200 WiFi adapter, which is supported by the iwlmvm driver and works in 802.11a/b/g/n/ac/ax modes. I frequently have to connect to a WiFi network with a very poor signal (about ...
Dan's user avatar
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3 votes
0 answers
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Arch Linux can't set wlo1 to "UP"

I recently installed Arch Linux on my Asus X403F VivoBook laptop, through an ethernet connection. But now, I want to connect it to a wireless connection. When I started network manager, via nmtui , it ...
Valku's user avatar
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3 votes
0 answers
4k views

nmcli -- Network Device unavailable on Fedora

my network device is "unavailable". When I enter nmcli It returns: wlp0s19f2u2: unavailable "Netgear WNA1100 150" wifi (ath9k_htc) A2:09:0E:06:E3:FA hw mtu 1500 "nmcli general" returns: STATE ...
AwesomeMeAY's user avatar
3 votes
0 answers
262 views

Network manager shared connection slow

I have a laptop running nixos and a desktop pc running windows. They are connected via a crossover cable. I use the option "shared connection" from network manager to stream steam games from my ...
StillerHarpo's user avatar
3 votes
1 answer
793 views

Polkit not working when trying to reload nmcli connection

I'm currently working on an Archlinux system and I try to configure rules used by polkit so users inside network group are able to run nmcli commands. I've create a polkit rule as follow : polkit....
Maniolias's user avatar
3 votes
0 answers
903 views

Modem not reconnectiong after 4G disconnect

In one of our systems we recently had the problem that after a disconnect from the 4G network the modem did not reestablish the connection, even thought the 4G connection was back up again. A manual ...
hdo's user avatar
  • 31
3 votes
1 answer
2k views

Adding additional nameservers with resolvconf, dnsmasq & networkmanager

I'm running resolvconf, dnsmasq and interfaces&connections are managed by NetworkManager (nm). dnsmasq is supposed to cache dns entries, and use upstream servers configured via DHCP and manually. ...
laur's user avatar
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3 votes
1 answer
669 views

systemd unit config that waits for PPPoe connection

On Ubuntu 16.04LTS I'm having trouble getting my service to wait for my PPPoe internet connection before starting. My unit file: [Unit] Description=Home Assistant Wants=network-online.target After=...
davegravy's user avatar
  • 183
3 votes
0 answers
2k views

NetworkManager fails to connect with a cloned MAC address

I need to spoof a specific MAC address to be able to connect to the local ethernet. So I filled in the "Cloned MAC address" field in nm-connection-editor. After this, nm-applet shows a spinning icon ...
L. Levrel's user avatar
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3 votes
1 answer
12k views

Ping 'Name or service not known' how can I clear cache

For several days now, after several reboots I still am faced with the issue of my CentOS 7 machine not being able to ping my domain. [root@ip126 ~]# ping sub.mydomain.eu ping: sub.mydomain.eu: Name ...
masterq's user avatar
  • 171
3 votes
1 answer
286 views

Network manager misses my network card

I've got the following network card: Bus 001 Device 002: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard It's accessable through ip tool and properly works with dhcpcd (3rd entry in the ...
Denis Sheremet's user avatar
3 votes
1 answer
1k views

Wifi stops working after suspend or when reconnecting (doesn't happen every time, reboot fixes)

Might be duplicate of this. Every now and then my wifi stops working after I wake my laptop from suspend / hibernation or when reconnecting / changing between hotspots. I use normally networkmanager ...
warbaque's user avatar
  • 131
3 votes
1 answer
2k views

NetworkManager corrupted ipv6 dns settings

Today, I started having most web sites failing to load in browsers. Checking my network settings, I discovered those strange settings in ipv6 tab: Switching back to my usual dns for ipv6 (Google's ...
Frédéric's user avatar
3 votes
0 answers
2k views

Why can't Fedora start my (hard wired) network?

FYI: I've asked this on Superuser but not luck so I'm trying here. I'm not sure which it is more relevant to. I have a hard-wired Ethernet card/cable to my hub. I start Fedora 23 but there's no ...
Ross Drew's user avatar
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3 votes
0 answers
991 views

Changing Fedora's builtin Hotspot mode to 5GHz

I am using Fedora 22 and in the WiFi settings, I can enable a HotSpot. I found the /etc/NetworkManager/system-connections/Hotspot file, but I do not know what I can do there. I want the hotspot to ...
Bart Friederichs's user avatar
3 votes
0 answers
1k views

Prefer wired over wireless for local subnet using NetworkManager

My wireless network is bridged to my wired network, so both have the same subnet. How do I tell NetworkManager to give the local subnet route on the wireless interface a higher metric than the route ...
Michel's user avatar
  • 213
3 votes
0 answers
1k views

How to trigger dhcp4-change using nmcli?

I am working on a networking script which will do certain things, e.g., interface up/down/dhcp4-change events happen. I also need to generate these events through Network manager, not through ...
vindyz's user avatar
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3 votes
1 answer
2k views

How to avoid duplicate connection names? (32) Connection 'Auto Ethernet' is already active on enpXXX

Is there any way that I can make networkmanager to assign some unique names or device derrived name instead of Auto Ethernet so that we can avoid the names conflict? After I've upgraded to Ubuntu ...
Anthony Hunt's user avatar
3 votes
1 answer
1k views

Fedora 20 KDE: shortcut for airplane mode

is there a possiblity to have a Keyboard shortcut (e. g. fn + f10) for the airplane mode (Switch off all wifi Connections) under KDE (Fedora 20)?
rodorapido's user avatar
3 votes
0 answers
1k views

Network manager disappeared

My NetworkManager icon has disappeared and there is no network management tools in the menu. How do I get the icon back and an entry in the menu for configuring different wireless networks? I use ...
Ole Tange's user avatar
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3 votes
0 answers
151 views

Switching from GSM to CDMA

NetworkManager has crashed and now it's showing CDMA mobile broadband as a GSM device. How I can switch to CDMA mode? I'm using Ubuntu.
Talha Junaid's user avatar
3 votes
0 answers
931 views

Can I configure specified PEAP in network-manager

Here's the wpa_supplicant.conf file: ap_scan=1 network={ ssid="<SSID Name>" proto=WPA2 key_mgmt=WPA-EAP pairwise=CCMP group=CCMP eap=PEAP phase1="peaplabel=0" ...
Yai0Phah's user avatar
  • 131
3 votes
1 answer
3k views

NetworkManager no longer auto-connects on login

I've configured nm-applet to run during X login, and I've connected to my home Wi-Fi network many times. Recently it no longer tries to connect to the network after logging in. In the connection's "...
l0b0's user avatar
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3 votes
1 answer
2k views

CentOS network connection breaks every 5 min

I installed CentOS 6.2 about a month ago and it worked fine. Two days ago I saw that the internet connection is broken, so I reconfigured it. I was able to use it but after a few minutes it broke ...
mason's user avatar
  • 53
2 votes
0 answers
141 views

Application does DNS outside of its Network Namespace?

I am using unshare to create a network namespace: unshare -rn bash I already have the a working setup with veth-interfaces as described in this guide: https://josephmuia.ca/2018-05-16-net-namespaces-...
Aykut's user avatar
  • 21
2 votes
0 answers
389 views

How do I symbolically link /etc/resolv.conf to /var/run/systemd/resolve/stub-resolv.conf in Yocto

I'm trying to setup a Yocto build using NetworkManager v1.22.16 and systemd 244.5. systemd-resolved - /etc/resolv.conf recommends I setup /etc/resolv.conf as a symbolic link to /var/run/systemd/...
parsley72's user avatar
  • 289
2 votes
1 answer
536 views

Programmatically retrieve list of supported WiFi frequencies/channels

I'm currently building an application that leverages NetworkManager for providing network configuration functionalities. The application uses the DBus API to communicate with NetworkManager. I'm now ...
mattdibi's user avatar
  • 121
2 votes
2 answers
502 views

IPSec settings greuyed out in Add new connection dialog - Fedora36

I would like to add a Layer 2 Tunneling Protocol (L2TP) VPN connection in Network Manager and need to change the IPSec settings but the button is greyed out: I've installed the NetworkManager-...
MisdeBug's user avatar
2 votes
1 answer
5k views

Location of network configuration files AlmaLinux 9

I'm a bit confussed with NetworkManager in AlmaLinux 9. I'm using VPS from Linode. I have created a VPS with one Ethernet interface with public IP. Its configuration file is stored in /etc/sysconfig/...
sqra's user avatar
  • 21
2 votes
0 answers
78 views

nm-applet does not list own hotspot after having disconnected from it

I created a hotspot (to share my LAN network over WLAN) using nm-applet and it works quite fine. However, after disconnecting from my own hotspot (= stop being access point for other devices), I ...
robert's user avatar
  • 21
2 votes
0 answers
357 views

Why does nmcli list a different connected bitrate than the output of iwconfig?

On a laptop with Pop!_OS 21.04 nmcli dev wifi outputs my connected network like so: ➜ ~ nmcli dev wifi IN-USE BSSID SSID MODE CHAN RATE SIGNAL BARS ...
DrKumar's user avatar
  • 119
2 votes
0 answers
889 views

new 10GBE network card not connecting

I recently installed a new 10gbe network card in my fedora34 machine. it shows up correctly but it fails establishing a connection. I tried a different cable & port on the switch (that work with a ...
Clemens Valiente's user avatar
2 votes
0 answers
106 views

Prevent NetworkManager from storing WiFi connections and passwords for all users by default

It seems that, by default, NetworkManager stores WiFi connections and passwords under /etc/NetworkManager/system-connections/ so that they are available for all users. How can this be disabled? I know ...
Jaakko Luttinen's user avatar
2 votes
1 answer
2k views

Determine current networking manager being used on Linux

Is there a quick and dirty way to figure out what network manager (and no, not NetworkManager) a given distro is using to manage the machine's networking? Like Ubuntu 18.04+ uses netplan, CentOS uses ...
Son of Sam's user avatar
2 votes
0 answers
2k views

GSM connection fails - NetworkManager

I am trying to achieve the gsm connection through my single board computer. I think I set up everything. Below is the output of the modem info: -------------------------------- General | ...
tony sasa's user avatar

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