can you post your /etc/resolv.conf,
and a nmcli connection result?
192.168.1.254 is the default gateway for my ethernet and wifi
# cat /etc/resolv.conf
# Generated by NetworkManager
search home
nameserver 192.168.1.254
# nmcli connection
NAME UUID TYPE DEVICE
Ethernet d8c1ad64-98d6-339f-848b-dd56d67375c8 ethernet eno1
Laura Hotspot a7495e19-9cf9-4720-94c6-d9fa64e1782f wifi wlan0
Wifi fa789ab6-c80a-43de-b488-047aba7d701a wifi --
what is nmcli con show "Ethernet" |grep P4 and nmcli con show "Laura Hotspot" |grep P4 ?
# nmcli con show "Ethernet" | grep P4
IP4.ADDRESS[1]: 192.168.1.203/24
IP4.GATEWAY: 192.168.1.254
IP4.ROUTE[1]: dst = 192.168.1.0/24, nh = 0.0.0.0, mt = 100
IP4.ROUTE[2]: dst = 0.0.0.0/0, nh = 192.168.1.254, mt = 100
IP4.DNS[1]: 8.8.8.8
IP4.DNS[2]: 192.168.1.254
IP4.DOMAIN[1]: home
DHCP4.OPTION[1]: broadcast_address = 192.168.1.255
DHCP4.OPTION[2]: dhcp_client_identifier = 01:48:ba:4e:b3:ea:e6
DHCP4.OPTION[3]: dhcp_lease_time = 86400
DHCP4.OPTION[4]: dhcp_server_identifier = 192.168.1.254
DHCP4.OPTION[5]: domain_name = home
DHCP4.OPTION[6]: domain_name_servers = 192.168.1.254
DHCP4.OPTION[7]: expiry = 1722980464
DHCP4.OPTION[8]: host_name = pigeon
DHCP4.OPTION[9]: ip_address = 192.168.1.203
DHCP4.OPTION[10]: next_server = 192.168.1.254
DHCP4.OPTION[11]: requested_broadcast_address = 1
DHCP4.OPTION[12]: requested_domain_name = 1
DHCP4.OPTION[13]: requested_domain_name_servers = 1
DHCP4.OPTION[14]: requested_domain_search = 1
DHCP4.OPTION[15]: requested_host_name = 1
DHCP4.OPTION[16]: requested_interface_mtu = 1
DHCP4.OPTION[17]: requested_ms_classless_static_routes = 1
DHCP4.OPTION[18]: requested_nis_domain = 1
DHCP4.OPTION[19]: requested_nis_servers = 1
DHCP4.OPTION[20]: requested_ntp_servers = 1
DHCP4.OPTION[21]: requested_rfc3442_classless_static_routes = 1
DHCP4.OPTION[22]: requested_root_path = 1
DHCP4.OPTION[23]: requested_routers = 1
DHCP4.OPTION[24]: requested_static_routes = 1
DHCP4.OPTION[25]: requested_subnet_mask = 1
DHCP4.OPTION[26]: requested_time_offset = 1
DHCP4.OPTION[27]: requested_wpad = 1
DHCP4.OPTION[28]: routers = 192.168.1.254
DHCP4.OPTION[29]: subnet_mask = 255.255.255.0
DHCP4.OPTION[30]: wpad =
nmcli con show "Laura Hotspot" | grep P4 seems to return nothing
does nmcli con show "Laura Hotspot" return something?
# nmcli con show "Laura Hotspot"
connection.id: Laura Hotspot
connection.uuid: a7495e19-9cf9-4720-94c6-d9fa64e1782f
connection.stable-id: --
connection.type: 802-11-wireless
connection.interface-name: --
connection.autoconnect: yes
connection.autoconnect-priority: 0
connection.autoconnect-retries: -1 (default)
connection.multi-connect: 0 (default)
connection.auth-retries: -1
connection.timestamp: 1722895031
connection.permissions: user:laura
connection.zone: --
connection.controller: --
connection.master: --
connection.slave-type: --
connection.port-type: --
connection.autoconnect-slaves: -1 (default)
connection.autoconnect-ports: -1 (default)
connection.down-on-poweroff: -1 (default)
connection.secondaries: --
connection.gateway-ping-timeout: 0
connection.metered: unknown
connection.lldp: default
connection.mdns: -1 (default)
connection.llmnr: -1 (default)
connection.dns-over-tls: -1 (default)
connection.mptcp-flags: 0x0 (default)
connection.wait-device-timeout: -1
connection.wait-activation-delay: -1
802-11-wireless.ssid: laura's phone
802-11-wireless.mode: infrastructure
802-11-wireless.band: --
802-11-wireless.channel: 0
802-11-wireless.bssid: --
802-11-wireless.mac-address: --
802-11-wireless.cloned-mac-address: --
802-11-wireless.generate-mac-address-mask:--
802-11-wireless.mac-address-denylist: --
802-11-wireless.mac-address-randomization:default
802-11-wireless.mtu: auto
802-11-wireless.seen-bssids: FA:F3:AD:ED:B2:05
802-11-wireless.hidden: no
802-11-wireless.powersave: 0 (default)
802-11-wireless.wake-on-wlan: 0x1 (default)
802-11-wireless.ap-isolation: -1 (default)
802-11-wireless-security.key-mgmt: wpa-psk
802-11-wireless-security.wep-tx-keyidx: 0
802-11-wireless-security.auth-alg: --
802-11-wireless-security.proto: --
802-11-wireless-security.pairwise: --
802-11-wireless-security.group: --
802-11-wireless-security.pmf: 0 (default)
802-11-wireless-security.leap-username: --
802-11-wireless-security.wep-key0: <hidden>
802-11-wireless-security.wep-key1: <hidden>
802-11-wireless-security.wep-key2: <hidden>
802-11-wireless-security.wep-key3: <hidden>
802-11-wireless-security.wep-key-flags: 0 (none)
802-11-wireless-security.wep-key-type: unknown
802-11-wireless-security.psk: <hidden>
802-11-wireless-security.psk-flags: 1 (agent-owned)
802-11-wireless-security.leap-password: <hidden>
802-11-wireless-security.leap-password-flags:0 (none)
802-11-wireless-security.wps-method: 0x0 (default)
802-11-wireless-security.fils: 0 (default)
ipv4.method: auto
ipv4.dns: --
ipv4.dns-search: --
ipv4.dns-options: --
ipv4.dns-priority: 0
ipv4.addresses: --
ipv4.gateway: --
ipv4.routes: --
ipv4.route-metric: -1
ipv4.route-table: 0 (unspec)
ipv4.routing-rules: --
ipv4.replace-local-rule: -1 (default)
ipv4.dhcp-send-release: -1 (default)
ipv4.ignore-auto-routes: no
ipv4.ignore-auto-dns: no
ipv4.dhcp-client-id: --
ipv4.dhcp-iaid: --
ipv4.dhcp-dscp: --
ipv4.dhcp-timeout: 0 (default)
ipv4.dhcp-send-hostname: yes
ipv4.dhcp-hostname: --
ipv4.dhcp-fqdn: --
ipv4.dhcp-hostname-flags: 0x0 (none)
ipv4.never-default: no
ipv4.may-fail: yes
ipv4.required-timeout: -1 (default)
ipv4.dad-timeout: -1 (default)
ipv4.dhcp-vendor-class-identifier: --
ipv4.link-local: 0 (default)
ipv4.dhcp-reject-servers: --
ipv4.auto-route-ext-gw: -1 (default)
ipv6.method: auto
ipv6.dns: --
ipv6.dns-search: --
ipv6.dns-options: --
ipv6.dns-priority: 0
ipv6.addresses: --
ipv6.gateway: --
ipv6.routes: --
ipv6.route-metric: -1
ipv6.route-table: 0 (unspec)
ipv6.routing-rules: --
ipv6.replace-local-rule: -1 (default)
ipv6.dhcp-send-release: -1 (default)
ipv6.ignore-auto-routes: no
ipv6.ignore-auto-dns: no
ipv6.never-default: no
ipv6.may-fail: yes
ipv6.required-timeout: -1 (default)
ipv6.ip6-privacy: -1 (default)
ipv6.temp-valid-lifetime: 0 (default)
ipv6.temp-preferred-lifetime: 0 (default)
ipv6.addr-gen-mode: stable-privacy
ipv6.ra-timeout: 0 (default)
ipv6.mtu: auto
ipv6.dhcp-pd-hint: --
ipv6.dhcp-duid: --
ipv6.dhcp-iaid: --
ipv6.dhcp-timeout: 0 (default)
ipv6.dhcp-send-hostname: yes
ipv6.dhcp-hostname: --
ipv6.dhcp-hostname-flags: 0x0 (none)
ipv6.auto-route-ext-gw: -1 (default)
ipv6.token: --
proxy.method: none
proxy.browser-only: no
proxy.pac-url: --
proxy.pac-script: --
The config shows that your pc ethernet is configured by dhcp, which is your router, which is also your dns. If you have access to your router’s configuration you might be able to configure the dns settings that the dhcp rolls out to all clients in your network. That is the proper way to set dns. Alternatively you can just edit /etc/resolv.conf and put on first place you nameserver for testing. This will work for testing, but withing some minutes NM will overwrite it. You may stop that by immediately do a chmod 444 /etc/resolv.conf. Not nice, but working for testing. Not for operation.
Your tethering confuses me. No interface name, no config.
Disabling auto dns gives me an option for primary and secondary. I guess I’ll set 8.8.8.8 and see what changes. Is it correct that none of this can have an effect on the fact that my request time out when connected solely to the separate mobile data hotspot?
Well, something is wrong with these tethering settings. In plain theory, each connection is configured separately by NM, so even multiple connections parallel should work because they usually have different priorities. So, these cable settings should not interfere with wifi/tethering settings.
Right. Yeah other than dig -t ANY google.com now giving ns1.google.com as the dns, nothing else seems to have changed, even /etc/resolv.conf is the same.
This shows your internal ip address but it’s not showing your wan ip address. Or did you just not post that?
That’s the entire contents of the file. I haven’t managed to get NetworkManager to add any other ips to it, though it is definitely generated since it reverts any changes I make.
Everything should be automatic. My /etc/resolv.conf shows my internal private ip address and the wan address.
What exactly do you mean by my ip address and the wan address? Addresses of local DNS server and public DNS server?
Okay it’s not the wan address but I’m just saying there are two ip adresses in the file.
The resolver can operate up to three addresses. More does not make sense as they are requested in listed order, with a timeout of about 5 s each. IMHO Multiple nameserver entries make sense if you have options to limit timeout and cause fail rotation in /etc/resolv.conf:
options timeout:1 attempts:1 rotate
This can be configured in NM by
nmcli con mod “NAMEOF THE CONNECTION” ipv4.dns-options “timeout:1 attempts:1 rotate”
That works immediately and writes configuration to NM and propagates it to resolv.conf. Take care for proper syntax of these options, nmcli does not verify them.
It is one of my isp dns servers i guess.
That is only helpful if it is a different one than the one your local dns forwards requests to. If it is the same it does not give any additional security of availability.
1 Like
I resorted to doing this, as even configuring DNS via the GUI settings didn’t help, and it has successfully got the hotspot working. I’m going to do a bunch of mtr tests on different networks (all of which have the slowdown problem) to see what stands out now on 1.1.1.1.
# cat /etc/resolv.conf
# NOT Generated by NetworkManager ANYMORE
search home
nameserver 1.1.1.1
ethernet to home router called Ethernet
[laura@pigeon ~]$ dig google.com
; <<>> DiG 9.20.0 <<>> google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38288
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 294 IN A 172.217.169.46
;; Query time: 10 msec
;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP)
;; WHEN: Tue Aug 06 12:31:35 BST 2024
;; MSG SIZE rcvd: 55
pigeon (192.168.1.203) -> google.com (142.250.187.238)2024-08-06T12:33:15+0100
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. _gateway 0.0% 42 1.0 1.0 0.9 1.3 0.1
2. (waiting for reply)
3. 137.hiper04.sheff.dial.plus.net 82.9% 42 3047. 2908. 1017. 5086. 1367.
4. 136.hiper04.sheff.dial.plus.net 0.0% 42 9.1 8.3 6.9 9.4 0.8
140.hiper04.sheff.dial.plus.net.uk
5. peer3-et7-0-2.redbus.ukcore.bt. 0.0% 42 13.5 9.2 7.1 23.3 2.9
peer8-et3-1-6.telehouse.ukcore.bt.net
peer7-et-0-1-7.telehouse.ukcore.bt.net
peer7-et-0-0-2.telehouse.ukcore.bt.net
peer3-et0-1-7.redbus.ukcore.bt.net
peer7-et-3-1-5.telehouse.ukcore.bt.net
peer7-et-0-1-2.telehouse.ukcore.bt.net
peer3-et0-1-5.redbus.ukcore.bt.net
peer7-et-3-1-2.telehouse.ukcore.bt.net
6. 109.159.253.237 0.0% 41 10.9 9.0 7.4 11.4 1.0
109.159.253.3
195.99.126.247
195.99.126.249
109.159.253.185
109.159.253.189
peer2-xe3-1-3.telehouse.ukcore.bt.net
142.250.47.6
7. 192.178.97.189 0.0% 41 9.0 9.4 8.2 10.7 0.7
209.85.253.95
209.85.255.77
74.125.253.31
192.178.97.49
209.85.248.229
216.239.41.53
216.239.41.193
8. 142.251.54.49 0.0% 41 9.0 8.9 7.9 12.3 0.8
142.251.54.47
9. lhr25s34-in-f14.1e100.net 0.0% 41 9.3 8.9 7.6 10.3 0.5
[laura@pigeon ~]$ iperf3 -t 8 -c iperf.as42831.net -p 5300-5400
Connecting to host iperf.as42831.net, port 5300
[ 5] local 192.168.1.203 port 56168 connected to 31.132.7.130 port 5300
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 3.00 MBytes 25.2 Mbits/sec 0 166 KBytes
[ 5] 1.00-2.00 sec 2.88 MBytes 24.1 Mbits/sec 0 280 KBytes
[ 5] 2.00-3.00 sec 2.75 MBytes 23.1 Mbits/sec 0 394 KBytes
[ 5] 3.00-4.00 sec 2.75 MBytes 23.1 Mbits/sec 0 506 KBytes
[ 5] 4.00-5.00 sec 2.25 MBytes 18.9 Mbits/sec 19 391 KBytes
[ 5] 5.00-6.00 sec 2.12 MBytes 17.8 Mbits/sec 0 449 KBytes
[ 5] 6.00-7.00 sec 2.12 MBytes 17.8 Mbits/sec 0 492 KBytes
[ 5] 7.00-8.00 sec 2.25 MBytes 18.9 Mbits/sec 0 520 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-8.00 sec 20.1 MBytes 21.1 Mbits/sec 19 sender
[ 5] 0.00-8.39 sec 18.1 MBytes 18.1 Mbits/sec receiver
mobile data hotspot called laura's phone
[laura@pigeon ~]$ dig google.com
; <<>> DiG 9.20.0 <<>> google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 22805
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 78651 IN A 216.239.38.120
;; Query time: 80 msec
;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP)
;; WHEN: Tue Aug 06 12:34:57 BST 2024
;; MSG SIZE rcvd: 44
pigeon (192.168.184.111) -> google.com (216.239.38.1202024-08-06T12:36:53+0100
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. _gateway 0.0% 95 37.1 21.4 2.5 126.2 21.8
2. (waiting for reply)
3. (waiting for reply)
4. (waiting for reply)
5. any-in-2678.1e100.net 0.0% 94 45.4 76.3 32.4 183.9 30.2
[laura@pigeon ~]$ iperf3 -t 8 -c iperf.as42831.net -p 5300-5400
Connecting to host iperf.as42831.net, port 5300
[ 5] local 192.168.184.111 port 41884 connected to 31.132.7.130 port 5300
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 256 KBytes 2.10 Mbits/sec 0 65.2 KBytes
[ 5] 1.00-2.00 sec 128 KBytes 1.05 Mbits/sec 0 71.8 KBytes
[ 5] 2.00-3.00 sec 128 KBytes 1.05 Mbits/sec 0 78.3 KBytes
[ 5] 3.00-4.00 sec 128 KBytes 1.05 Mbits/sec 0 86.1 KBytes
[ 5] 4.00-5.00 sec 256 KBytes 2.10 Mbits/sec 0 96.5 KBytes
[ 5] 5.00-6.00 sec 128 KBytes 1.05 Mbits/sec 0 125 KBytes
[ 5] 6.00-7.00 sec 512 KBytes 4.19 Mbits/sec 0 170 KBytes
[ 5] 7.00-8.00 sec 256 KBytes 2.10 Mbits/sec 0 222 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-8.00 sec 1.75 MBytes 1.83 Mbits/sec 0 sender
[ 5] 0.00-10.24 sec 1.50 MBytes 1.23 Mbits/sec receiver
library wifi called Libraries Guest WiFi
[laura@pigeon ~]$ dig google.com
; <<>> DiG 9.20.0 <<>> google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27956
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
;; QUESTION SECTION:
;google.com. IN A
;; ANSWER SECTION:
google.com. 56 IN A 172.217.16.238
;; Query time: 84 msec
;; SERVER: 1.1.1.1#53(1.1.1.1) (UDP)
;; WHEN: Tue Aug 06 15:00:08 BST 2024
;; MSG SIZE rcvd: 55
pigeon (172.16.84.91) -> google.com (172.217.16.238) 2024-08-06T15:03:21+0100
Packets Pings
Host Loss% Snt Last Avg Best Wrst StDev
1. _gateway 0.0% 135 1.5 25.2 0.9 2039. 195.0
2. 172.18.129.41 0.0% 134 2.0 18.2 1.0 1027. 123.7
3. 146.97.181.156 0.0% 134 60.2 14.3 4.2 1010. 87.0
4. ae25.erdiss-sbr2.ja.net 0.0% 134 4.6 15.3 4.2 1010. 87.4
5. ae31.londpg-sbr2.ja.net 0.0% 134 9.8 20.5 8.1 1016. 87.3
6. ae29.londhx-sbr1.ja.net 0.0% 134 8.6 11.9 8.5 50.8 7.7
7. 193.62.157.22 0.0% 134 10.4 50.8 9.9 1039. 193.5
8. 209.85.249.187 0.0% 134 9.7 28.5 9.4 1077. 126.9
216.239.48.217
9. 142.251.52.149 0.0% 134 11.1 21.2 10.7 1021. 87.5
142.251.52.151
10. mad08s04-in-f14.1e100.net 0.0% 134 11.0 12.2 9.1 78.9 8.3
[laura@pigeon ~]$ iperf3 -t 8 -c iperf.as42831.net -p 5300-5400
Connecting to host iperf.as42831.net, port 5300
[ 5] local 172.16.84.91 port 47050 connected to 31.132.7.130 port 5300
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 2.75 MBytes 23.0 Mbits/sec 0 145 KBytes
[ 5] 1.00-2.00 sec 2.38 MBytes 19.9 Mbits/sec 0 248 KBytes
[ 5] 2.00-3.00 sec 2.50 MBytes 21.0 Mbits/sec 0 339 KBytes
[ 5] 3.00-4.00 sec 2.75 MBytes 23.1 Mbits/sec 2 199 KBytes
[ 5] 4.00-5.00 sec 2.50 MBytes 21.0 Mbits/sec 5 110 KBytes
[ 5] 5.00-6.00 sec 2.75 MBytes 23.1 Mbits/sec 0 123 KBytes
[ 5] 6.00-7.00 sec 2.12 MBytes 17.8 Mbits/sec 0 136 KBytes
[ 5] 7.00-8.00 sec 2.62 MBytes 22.0 Mbits/sec 0 148 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-8.00 sec 20.4 MBytes 21.4 Mbits/sec 7 sender
[ 5] 0.00-8.02 sec 19.4 MBytes 20.3 Mbits/sec receiver
Hope this helps.