Unable to turn on hotspot in Ubuntu 18.04 after moving the partition and/or installing bind9

Shravya Boggarapu

2/26/24, 1:47 AM

I created a hotspot using nmcli in Ubuntu and it used to work fine but then some of my partitions incuding swap, efi and windows were accidentally deleted in my SSD. I resinstalled windows and repaired my grub using boot repair and updated my partition scheme. I also took this opportunity to increase the size of my ubuntu partitions

Now I am unable to switch ON the hotspot. Neither using nmcli nor network manager. It doesn't say it failed but I get a notification saying it failed. I checked with Windows and hotspot activates fine (5GHz and 2.4GHz)

I just want to get a direction on what to look for to fix my ubuntu hotspot

The only other thing I tried on ubuntu recently is that I am trying to configure a DNS on linux using bind, so I installed it. Could that have any impact?

I found the network manager log, hope this helps:

Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3694] device (wlanAP): Activation: starting connection 'defaultAP' (92458e9d-1fb7-4fef-8dc7-7675fd0d30f2) Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3699] sup-iface[0x557a2dba3240,wlanAP]: connection disconnected (reason -3) Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3699] device (wlanAP): supplicant interface state: completed -> disconnected Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3712] device (wlanAP): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3713] manager: NetworkManager state is now CONNECTING Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3746] device (wlanAP): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3748] device (wlanAP): Activation: (wifi) access point 'defaultAP' has security, but secrets are required. Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3748] device (wlanAP): state change: config -> need-auth (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3787] device (wlanAP): state change: need-auth -> prepare (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3797] device (wlanAP): state change: prepare -> config (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3799] device (wlanAP): Activation: (wifi) connection 'defaultAP' has security, and secrets exist. No new secrets needed. Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3799] Config: added 'ssid' value 'Nock-AP-000000' Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3799] Config: added 'mode' value '2' Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3799] Config: added 'frequency' value '2412' Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3800] Config: added 'key_mgmt' value 'WPA-PSK' Feb 26 06:51:54 NetworkManager[1186]: [1677374514.3800] Config: added 'psk' value '' Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4089] device (wlanAP): supplicant interface state: disconnected -> completed Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4089] device (wlanAP): Activation: (wifi) Stage 2 of 5 (Device Configure) successful. Started Wi-Fi Hotspot 'Nock-AP-000000'. Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4091] device (wlanAP): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4439] Executing: /sbin/iptables --table filter --insert INPUT --in-interface wlanAP --protocol tcp --destination-port 53 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4481] Executing: /sbin/iptables --table filter --insert INPUT --in-interface wlanAP --protocol udp --destination-port 53 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4520] Executing: /sbin/iptables --table filter --insert INPUT --in-interface wlanAP --protocol tcp --destination-port 67 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4556] Executing: /sbin/iptables --table filter --insert INPUT --in-interface wlanAP --protocol udp --destination-port 67 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4595] Executing: /sbin/iptables --table filter --insert FORWARD --in-interface wlanAP --jump REJECT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4629] Executing: /sbin/iptables --table filter --insert FORWARD --out-interface wlanAP --jump REJECT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4661] Executing: /sbin/iptables --table filter --insert FORWARD --in-interface wlanAP --out-interface wlanAP --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4691] Executing: /sbin/iptables --table filter --insert FORWARD --source 10.42.0.0/255.255.255.0 --in-interface wlanAP --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4719] Executing: /sbin/iptables --table filter --insert FORWARD --destination 10.42.0.0/255.255.255.0 --out-interface wlanAP --match state --state ESTABLISHED,RELATED --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4752] Executing: /sbin/iptables --table nat --insert POSTROUTING --source 10.42.0.0/255.255.255.0 ! --destination 10.42.0.0/255.255.255.0 --jump MASQUERADE Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4782] dnsmasq-manager: starting dnsmasq... Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4799] device (wlanAP): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4818] device (wlanAP): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4822] device (wlanAP): state change: secondaries -> activated (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:56 NetworkManager[1186]: dnsmasq: failed to create listening socket for 10.42.0.1: Address already in use Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4825] manager: NetworkManager state is now CONNECTED_LOCAL Feb 26 06:51:56 dnsmasq[2896]: failed to create listening socket for 10.42.0.1: Address already in use Feb 26 06:51:56 dnsmasq[2896]: FAILED to start up Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4882] device (wlanAP): Activation: successful, device activated. Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4888] dnsmasq-manager: dnsmasq exited with error: Network access problem (address in use, permissions) (2) Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4888] device (wlanAP): state change: activated -> failed (reason 'ip-config-unavailable', sys-iface-state: 'managed') Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4890] manager: NetworkManager state is now DISCONNECTED Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4928] device (wlanAP): Activation: failed for connection 'defaultAP' Feb 26 06:51:56 NetworkManager[1186]: [1677374516.4939] device (wlanAP): state change: failed -> disconnected (reason 'none', sys-iface-state: 'managed') Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5098] Executing: /sbin/iptables --table nat --delete POSTROUTING --source 10.42.0.0/255.255.255.0 ! --destination 10.42.0.0/255.255.255.0 --jump MASQUERADE Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5121] Executing: /sbin/iptables --table filter --delete FORWARD --destination 10.42.0.0/255.255.255.0 --out-interface wlanAP --match state --state ESTABLISHED,RELATED --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5156] Executing: /sbin/iptables --table filter --delete FORWARD --source 10.42.0.0/255.255.255.0 --in-interface wlanAP --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5183] Executing: /sbin/iptables --table filter --delete FORWARD --in-interface wlanAP --out-interface wlanAP --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5207] Executing: /sbin/iptables --table filter --delete FORWARD --out-interface wlanAP --jump REJECT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5231] Executing: /sbin/iptables --table filter --delete FORWARD --in-interface wlanAP --jump REJECT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5271] Executing: /sbin/iptables --table filter --delete INPUT --in-interface wlanAP --protocol udp --destination-port 67 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5296] Executing: /sbin/iptables --table filter --delete INPUT --in-interface wlanAP --protocol tcp --destination-port 67 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5320] Executing: /sbin/iptables --table filter --delete INPUT --in-interface wlanAP --protocol udp --destination-port 53 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5348] Executing: /sbin/iptables --table filter --delete INPUT --in-interface wlanAP --protocol tcp --destination-port 53 --jump ACCEPT Feb 26 06:51:56 NetworkManager[1186]: [1677374516.5378] device (wlanAP): supplicant interface state: completed -> disconnected

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network-manager

ap-hotspot

18.04

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Unable to turn on hotspot in Ubuntu 18.04 after moving the partition and/or installing bind9

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