Questions tagged [networkmanager]

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

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I erased hardware address of wifi device in NetworkManager. How can I find it again?

I was trying to fix a limited connectivity wifi connection and erased the hardware address of wifi device in NetworkManager by mistake. I cannot get wifi to work and thought changing those settings ...
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dhclient.conf modifications do not change resolv.conf

When I modify my /etc/dhcp/dhclient.conf with prepended nameservers, after a network manager restart, the generated resolv.conf file does not contains these servers. I'm working on Kali Linux. Here ...
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Create static ipv6 address without 'noprefixroute' using NetworkManager

I have created a static ipv6 address on my firewall (armbian) LAN ethernet. I used NetworkManager. The problem is the address shows as: inet6 2001:DB8:c101:b700::1/64 scope global noprefixroute The ...
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Create a captive portal with network manager (nmcli)

I am looking to configure the wifi (wlan0) as an access point / hotspot with the following behaviour. The following works: Device creates a hotspot, broadcasts the SSID and starts up http server (...
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NetworkManager and alias of lo interface became alias of team0

I want to create an alias of lo interface( I need it for VIP of keepalived). But network-manager seems to create problems. I have created this file /etc/sysconfig/network-scripts/ifcfg-lo:0 DEVICE=...
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Debian 10 need to change MAC address of interface to connect using Ethernet over USB

everytime that I use the Ethernet over USB connection I need to change the MAC address of the interface to achieve the connection macchanger -r enp0s20f0u1 After the change the connection is ...
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+50

WiFi Settings Missing in Network Manager

I'm running Debian 10 Cinnamon, and recently I've noticed that the WiFi settings within Network Manager(nm-applet) are completely missing. Previously, I could click the network icon in the bottom ...
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After creating a team connection with NetworkManager, on reboot disappear with strange results

I have created, on Fedora server a team connection using networkManager nmcli con add type team con-name team0 ifname team0 config /usr/share/doc/teamd/example_configs/random.conf nmcli con add type ...
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nmcli doesn't allow vpn.data property with list of options

I'm trying to create a VPN connection using nmcli, but it won't allow me to set the ipsec-ike property to a list of algorithms. Example: nmcli connection add \ connection.id my_vpn \ con-name my_vpn \...
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Errors in my recipe netwprkmanager-pptp

i write recipe networkmanager-pptp for yocto but it have some problem. I thought it was missing the config but didn't know how to fix it. This recipe is very basic and created from autotools. Looking ...
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VPN fails: Could not find source connection

I am running Ubuntu 18.04 and trying to get a VPN (L2TP/IPSec) connection to my company. The necessary tools are already installed and I have a profile with the correct access data. However, if I ...
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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/...
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Network is unreachable with WiFi adapter

I'm experiencing again a "network is unreachable" problem. My current situation is the following: I bought a USB wireless card, I plugged it in my PC, I configured everything via Yast (wicked ...
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Customize layout of network monitoring display provided with slurm

I am able to use slurm to monitor network traffic with the syntax: $ slurm -i <network> This gives a network monitoring graph such as the one below This graph provides network monitoring ...
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Troubleshooting mDNS(?) to resolve LAN .local addresses; can no longer resolve ANY hostname

I was trying to troubleshoot why I can't ping local computers using the .local extension like I can on Windows/MacOS. eg I can't ping pi1.local on my CentOS 7 machine but can from others On top of ...
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Error: Connection activation failed: No suitable device found for this connection

glad to be on these forums! I searched around a bit on the forums, but couldn't find a good pre-existing case for this that might resolve anything. The error just happened out of nowhere after a ...
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101 views

networkmanager-strongswan vpn - routing specific ip through VPN

I'm trying to setting a VPN on Linux Mint 19.2. I'm using the network-manager-strongswan so I added this file named VPN under /etc/NetworkManager/system-connections/ [connection] id=VPN uuid=...
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Changing EAPOL version on nmcli hotspot

I've setup a hotspot with nmcli on a Raspberry Pi running Buster by: installing network-manager: sudo apt-get install network-manager Setting up a hotspot profile: sudo nmcli c add type wifi ifname ...
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Change interface name

I'm with NetworkManager I want to change the interface name, what I don't know sure the steps.... First I should know my interface name and mac from it, ip a Seconds, set down the interface, ...
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network always off after boot RHEL CentOS 7

In RHEL/CentOS 7.6, I somehow messed up the files under /etc/syconfig/network-scripts After boot the wired network is always off; If I go into settings I can simply turn the blue slider connect on ...
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2answers
56 views

Why does the interface have an IPv6 address with IPv6 disabled?

I want to use my interface with a single IPv4 address and IPv6 disabled. IPv4 is configured on Manual, with a static IP without Gateway and Netmask 255.255.255.0. User this connection only for ...
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80 views

Fedora 31 and openvswitch bridge with network-manager…no way?

Fedora-31 consider the network-scripts package deprecated(is already possible to install it but they warn you to migrate to network-manager). So I use Network-Manager(of course the ovs plugin is ...
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Change NetworkManager connection file location

I'm trying to move the connection profile generated by the Network Manager from /etc/NetworkManager/system-connections to another position and to be able to activate it among multiple sessions after a ...
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56 views

How do I fully forward traffic from wlan0 to eth0 on Raspbian 10?

I'm posting here because this seems like a general Debian/Ubuntu issue, and not a Raspberry pi-specific issue. I want to bridge my wlan0 and eth0 ports on my Raspberry Pi (Raspbian 10/Buster), so ...
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NetworkManager not allowing scan of available wifi APs

I'm running buildroot Linux with systemd and NetworkManager and I'm trying to get on a Wifi network. I'm running a scan and get an error. Using NetworkManager I run the following: # nmcli radio wifi ...
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Can I script changing the IP address of my vpnc connection without losing credentials?

I use vpnc via Network Manager (Ubuntu bionic, GNOME) to connect to a network with a dialup connection (changing IPs). I‘d like to change the Gateway IP address via script. I have the complete script, ...
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19 views

4G connection drop Airtel Syslog message (7/8)

My 4G device is on an automobile that travels around 500 kms in a night. The network disconnects sometimes. And this is the log I see in the Syslog. Can someone help me understand what is going on? ...
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26 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 ...
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Share the WiFi connection to the Wired interface in CLI

I have a server without access to the Internet but every now and then I need to update some of its packages. In order to make my life easier, I am using my laptop which is also running Linux to share ...
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Can't connect to certain WiFis after linux mint install

I recently installed Linux Mint on my laptop. After the install, I am not able to connect to some wifi networks. When I enter the password, after 5/6 secs it again asks for authentication. Some ...
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25 views

Network connection fails repeatably on Linux

I've been trying to figure out what is happening on this public wifi. I've tried turning off NetworkManager's MAC changer, which did not help. For some reason on Linux it will not connect except like ...
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DNS does not work: is DNS server of network manager broken?

I've something strange with DNS servers : I can't resolve url. The /etc/resolv.conf file seems to be managed by NetworkManager and points to 127.0.0.53 (looks good so far): $ cat /etc/resolv.conf # ...
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Prevent NetworkManager from setting ~. search domain per-link on systemd-resolved

I'm trying to use the DNS over at /etc/systemd/resolved.conf in their capacity as DNS over TLS providers, but NetworkManager somehow manages to set ~. as search domain on the connections it sets up. ...
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1answer
99 views

nmcli insufficient privileges during initial VM setup

I'm auto-provisioning VMs (Debian Buster OS) During provisioning right after the system is installed the automation tool kicks-in. Among other actions it does (in that order): install NetworkManager ...
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32 views

Is there a command line tool that could connect to wifi and takes ssid and pass as arguments? [duplicate]

Currently I am using nmtui for selecting a spot. I would like to connect to a wifi spot from command line. I expect there might be a tool that would work this way connec2wifi -s somessid -p **** ...
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52 views

executing commands when network goes down or up

I'm trying to get the Network Manager dispatcher to run a script when the network interface comes up or goes down. I want to execute an espeak command when the connection goes up or goes down. I can ...
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115 views

CentOS 7 not detecting network interface controller

CentOS 7 minimal installed on a remote server. It has two NICs. Same setup as other servers I've handled. However, one of them doesn't appear to be working. [root@home network-scripts]# ip link 1: lo:...
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67 views

Make NetworkManager start g_ether device start without “ip link set usb0 up” first

I have a Raspberry Pi 4b where I'm trying to use g_ether to present an ethernet-over-USB interface to the computer which the device is plugged into. I'm able to do this only if I first bring the ...
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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....
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create a virtual interface - ghost ping

I'm trying to create a virtual interface. So I used this command : ip addr add 10.243.0.5/24 dev ens3:virt_int Here is the output of ip addr # ip addr list ens3 2: ens3: <BROADCAST,MULTICAST,...
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73 views

Debian 10 connect to Wi-fi

I'm conscious that this questions is quite basic but being honest I've being researching these days and I couldn't find how to do it. I'm using Debian 10 Live and the only thing I really did was ...
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1answer
56 views

Metered network

My mobile ISP handles a data limit of 12,5GB, and I'm using Manjaro Linux. I'm asking myself how a "metered" connection will save data. In the NetworkManager, there are three different options under ...
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44 views

What file(s) need editing to remove a wireless access point from wlp2s0?

innocent / # nmcli d wifi list * SSID MODE CHAN RATE SIGNAL BARS SECURITY ========================================================================= HillBillies ...
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1answer
28 views

Add a static route in network manager if on certain wifi network

I can't add a static route to my Xfinity router, or I'd do this there. I have two networks at home and I need to add a static route to my laptop when I need to connect to a computer or the other ...
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1answer
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Ubuntu 18.04.3 netboot PXE fresh installed boots up with Ethernet not managed by Network Manager

I'm trying to set up a PXE server to deliver Linux image for end user workstation in my company. I've finally made it to set up dnsmasq and nfs-kernel-server so now I can get the images via network ...
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1answer
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Network Manager plugin for Strongswan won't show pre shred key authentication option

this was originally the second part of my question here How to start a swanctl.conf configured tunnel automatically Environment: Debian 10, KDE, Full desktop # ipsec --version Linux strongSwan U5.7....
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How can I get rid of the NetworkManager applet if I use wicd?

I'm running Cinnamon on a Devuan GNU/Linux 3 (Beowulf) machine - which is essentially the same as Debian 10 (Buster). My distribution uses the wicd daemon for network connection management; and I ...
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139 views

Theoretical: TAP interface w/ WIFI parent interface

I'm trying to create multiple Linux TAP interfaces and allow them to send/receive packets over a single WIFI adapter. For all intents and purposes I'd like the TAP interfaces to act as full fledged ...
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36 views

NetworkManager script to mount share after connecting to specific network

I have setup a script in /etc/NetworkManager/dispatcher.d/ to try and mount a share after connecting to a specific network or via vpn When viewing the log at /var/log/syslog it fails with the message;...
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673 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 ...

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