!tCyGickeVqkHsYjWnh:nixos.org

NixOS Networking

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Declaratively manage your switching, routing, wireless, tunneling and more. | Don't rely on `networking.*` use systemd-networkd and NetworkManager instead. | Set `SYSTEMD_LOG_LEVEL=debug` to debug networking issues with networkd | No bad nft puns, please. | Room recommendations: #sysops:nixos.org247 Servers

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SenderMessageTime
1 Nov 2025
@crushing-smite:matrix.orgcrushing-smite
╰─❯ uname -a
Linux nixos 6.17.3 #1-NixOS SMP PREEMPT_DYNAMIC Wed Oct 15 10:04:23 UTC 2025 x86_64 GNU/Linux
22:21:30
@crushing-smite:matrix.orgcrushing-smite
...skipping...
Nov 01 22:20:33 nixos hostapd[962]: nl80211: deinit ifname=wlp5s0 disabled_11b_rates=0
Nov 01 22:20:33 nixos hostapd[962]: nl80211: Failed to remove interface wlp5s0 from bridge br0: Invalid argument
Nov 01 22:20:33 nixos systemd[1]: hostapd.service: Main process exited, code=exited, status=1/FAILURE
Nov 01 22:20:33 nixos systemd[1]: hostapd.service: Failed with result 'exit-code'.
Nov 01 22:20:34 nixos systemd[1]: hostapd.service: Scheduled restart job, restart counter is at 3.
Nov 01 22:20:34 nixos systemd[1]: Starting IEEE 802.11 Host Access-Point Daemon...
Nov 01 22:20:34 nixos systemd[1]: Started IEEE 802.11 Host Access-Point Daemon.
Nov 01 22:20:34 nixos hostapd[978]: wlp5s0: interface state UNINITIALIZED->COUNTRY_UPDATE
Nov 01 22:20:34 nixos hostapd[978]: Interface initialization failed
Nov 01 22:20:34 nixos hostapd[978]: wlp5s0: interface state COUNTRY_UPDATE->DISABLED
Nov 01 22:20:34 nixos hostapd[978]: wlp5s0: AP-DISABLED
Nov 01 22:20:34 nixos hostapd[978]: wlp5s0: Unable to setup interface.
Nov 01 22:20:34 nixos hostapd[978]: wlp5s0: interface state DISABLED->DISABLED
Nov 01 22:20:34 nixos hostapd[978]: wlp5s0: AP-DISABLED
Nov 01 22:20:34 nixos hostapd[978]: wlp5s0: CTRL-EVENT-TERMINATING
Nov 01 22:20:34 nixos hostapd[978]: rmdir[ctrl_interface=/run/hostapd]: Device or resource busy
Nov 01 22:20:34 nixos hostapd[978]: hostapd_free_hapd_data: Interface wlp5s0 wasn't started
Nov 01 22:20:34 nixos hostapd[978]: nl80211: deinit ifname=wlp5s0 disabled_11b_rates=0
Nov 01 22:20:34 nixos hostapd[978]: nl80211: Failed to remove interface wlp5s0 from bridge br0: Invalid argument
Nov 01 22:20:34 nixos systemd[1]: hostapd.service: Main process exited, code=exited, status=1/FAILURE
Nov 01 22:20:34 nixos systemd[1]: hostapd.service: Failed with result 'exit-code'.
Nov 01 22:20:34 nixos systemd[1]: hostapd.service: Scheduled restart job, restart counter is at 4.
Nov 01 22:20:34 nixos systemd[1]: Starting IEEE 802.11 Host Access-Point Daemon...
Nov 01 22:20:34 nixos systemd[1]: Started IEEE 802.11 Host Access-Point Daemon.
Nov 01 22:20:34 nixos hostapd[994]: wlp5s0: interface state UNINITIALIZED->COUNTRY_UPDATE
Nov 01 22:20:34 nixos hostapd[994]: Interface initialization failed
Nov 01 22:20:34 nixos hostapd[994]: wlp5s0: interface state COUNTRY_UPDATE->DISABLED
Nov 01 22:20:34 nixos hostapd[994]: wlp5s0: AP-DISABLED
Nov 01 22:20:34 nixos hostapd[994]: wlp5s0: Unable to setup interface.
Nov 01 22:20:34 nixos hostapd[994]: wlp5s0: interface state DISABLED->DISABLED
Nov 01 22:20:34 nixos hostapd[994]: wlp5s0: AP-DISABLED
Nov 01 22:20:34 nixos hostapd[994]: wlp5s0: CTRL-EVENT-TERMINATING
Nov 01 22:20:34 nixos hostapd[994]: rmdir[ctrl_interface=/run/hostapd]: Device or resource busy
Nov 01 22:20:34 nixos hostapd[994]: hostapd_free_hapd_data: Interface wlp5s0 wasn't started
Nov 01 22:20:34 nixos hostapd[994]: nl80211: deinit ifname=wlp5s0 disabled_11b_rates=0
Nov 01 22:20:34 nixos hostapd[994]: nl80211: Failed to remove interface wlp5s0 from bridge br0: Invalid argument
Nov 01 22:20:34 nixos systemd[1]: hostapd.service: Main process exited, code=exited, status=1/FAILURE
Nov 01 22:20:34 nixos systemd[1]: hostapd.service: Failed with result 'exit-code'.
Nov 01 22:20:35 nixos systemd[1]: hostapd.service: Scheduled restart job, restart counter is at 5.
Nov 01 22:20:35 nixos systemd[1]: hostapd.service: Start request repeated too quickly.
Nov 01 22:20:35 nixos systemd[1]: hostapd.service: Failed with result 'exit-code'.
Nov 01 22:20:35 nixos systemd[1]: Failed to start IEEE 802.11 Host Access-Point Daemon.
22:21:49
@crushing-smite:matrix.orgcrushing-smiteSame22:21:53
@k900:0upti.meK900 Try removing the forced regulatory domain on cfg80211 and adding it to the hostapd config instead? 22:24:08
@crushing-smite:matrix.orgcrushing-smitehow to?22:25:01
@k900:0upti.meK900 Honestly for starters just remove the boot.extraModprobeConfig 22:27:57
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@nrbray:matrix.orgNigel May I ask how to work around networking.useNetworkd = true; causing activation to fail (stalled indefinitely) after services are stopped and the vps inaccessible via ssh. 21:20:18
@k900:0upti.meK900It is not perfect21:23:59
@k900:0upti.meK900You probably want to see what it actually sets up21:24:04
@nrbray:matrix.orgNigelI added -v to the switch command but it didn't help. It was copied from a near identical vps that I intended to transfer a mailserver from (and worked).21:25:58
@k900:0upti.meK900Not like that21:26:21
@k900:0upti.meK900Inspect the generated networkd units21:26:57
@nrbray:matrix.orgNigelI guess using nix before activation - please may I ask how to look at this?21:29:42
@nrbray:matrix.orgNigelOne difference I see is that the new vps has ```networking.useDHCP = lib.mkDefault true;````21:30:18
@k900:0upti.meK900 nixos-rebuild repl and look at services.systemd.network 21:30:22
@nrbray:matrix.orgNigel

I can only find:
nix-repl> config.systemd.network
{
config = { ... };
enable = true;
links = { ... };
netdevs = «repeated»;
networks = { ... };
units = { ... };
wait-online = { ... };
}

nix-repl> config.systemd.network.networks
{
"99-ethernet-default-dhcp" = { ... };
"99-wireless-client-dhcp" = { ... };
}

21:38:27

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