Make it stop

[jiml8]

I have a Realtek USB wifi dongle that I want to plug into a USB port on my workstation, then assign it to a virtual machine so I can do some particular development work.

When I plug in the dongle, something in the workstation immediately takes control of it, defines wlan0, configures the routing, and moves all my workstation networking to use that dongle for my WAN connection.

Now, I THOUGHT I had all this automatic networking crap turned off. I do not want the machine to try to configure my networking; it screws everything up. My networking is static and I need for it to be that way.

All I want is to plug the dongle in, and have the workstation ignore its existence, so that I can assign it to a VM. Is that too much to ask?

How do I make it stop?

[doktor5000]

Mind to share the output of

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systemctl --all|grep -i network
pgrep -af net
pgrep -af ifplug


You can remove your network adapters from the systemctl output, I'd be only interested which services are currently running.

[jiml8]

systemctl --all|grep -i network

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  mandi.service                                                                                                                        loaded    active     running   Network monitoring daemon (Interactive Firewall and wireless)                                                                                                                                                                                                                                                                                                                                                                             
  ntpd.service                                                                                                                         loaded    active     running   Network Time Service                                                                                                                                                   
  systemd-timesyncd.service                                                                                                            loaded                                                                                                                                                           
  network-online.target                                                                                                                loaded    active     active    Network is Online                                                                                                                                                                                           
  network.target                                                                                                                       loaded    active     active    Network                                                                                                       
  nss-lookup.target                                                                                                                    loaded    active     active    Host and Network Name Lookups                                                                                 
  openvpn.target                                                                                                                       loaded    active     active    OpenVPN Networks

After looking at this list, I stopped mandi.service. I don't know if that is what I wanted to do, but I think so.

pgrep -af net

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57 netns
9481 /usr/bin/perl /usr/bin/net_applet
16183 /usr/bin/vmnet-bridge -s 12 -d /var/run/vmnet-bridge-0.pid -n 0
16185 /usr/bin/vmnet-netifup -s 12 -d /var/run/vmnet-netifup-vmnet1.pid /dev/vmnet1 vmnet1
16205 /usr/bin/vmnet-dhcpd -s 12 -cf /etc/vmware/vmnet1/dhcpd/dhcpd.conf -lf /etc/vmware/vmnet1/dhcpd/dhcpd.leases -pf /var/run/vmnet-dhcpd-vmnet1.pid vmnet1
16209 /usr/bin/vmnet-netifup -s 12 -d /var/run/vmnet-netifup-vmnet2.pid /dev/vmnet2 vmnet2
16216 /usr/bin/vmnet-netifup -s 12 -d /var/run/vmnet-netifup-vmnet5.pid /dev/vmnet5 vmnet5
16237 /usr/bin/vmnet-dhcpd -s 12 -cf /etc/vmware/vmnet5/dhcpd/dhcpd.conf -lf /etc/vmware/vmnet5/dhcpd/dhcpd.leases -pf /var/run/vmnet-dhcpd-vmnet5.pid vmnet5
16242 /usr/bin/vmnet-natd -s 12 -m /etc/vmware/vmnet5/nat.mac -c /etc/vmware/vmnet5/nat/nat.conf
16270 /usr/bin/vmnet-netifup -s 12 -d /var/run/vmnet-netifup-vmnet6.pid /dev/vmnet6 vmnet6
16285 /usr/bin/vmnet-natd -s 12 -m /etc/vmware/vmnet6/nat.mac -c /etc/vmware/vmnet6/nat/nat.conf
16323 /usr/bin/vmnet-netifup -s 12 -d /var/run/vmnet-netifup-vmnet8.pid /dev/vmnet8 vmnet8
16335 /usr/bin/vmnet-dhcpd -s 12 -cf /etc/vmware/vmnet8/dhcpd/dhcpd.conf -lf /etc/vmware/vmnet8/dhcpd/dhcpd.leases -pf /var/run/vmnet-dhcpd-vmnet8.pid vmnet8
16339 /usr/bin/vmnet-natd -s 12 -m /etc/vmware/vmnet8/nat.mac -c /etc/vmware/vmnet8/nat/nat.conf
26794 /usr/lib64/chromium-browser/chrome --type=utility --field-trial-handle=3573275452026283566,16504767145507292699,131072 --lang=en-US --service-sandbox-type=network --no-sandbox --enable-audio-service-sandbox --shared-files=v8_snapshot_data:100


pgrep -af ifplug
empty response

[doktor5000]

mandi is only for the interactive firewall, that shouldn't matter.

Well, best bet is to fire up journalctl -af and then plugin your wireless dongle, then check what's happening.
I'd guess it's net_applet that handles this. You should be able to prevent it from automatically starting if you handle your network yourself via right-click -> Settings or by putting AUTOSTART=FALSE into ~/.net-applet

You could also see if there's any ifcfg config file for the wireless dongle, and edit it to prevent automatically connecting. That should do it.