2026-04-09T10:16:23Z INF Thank you for trying Cloudflare Tunnel. Doing so, without a Cloudflare account, is a quick way to experiment and try it out. However, be aware that these account-less Tunnels have no uptime guarantee, are subject to the Cloudflare Online Services Terms of Use (https://www.cloudflare.com/website-terms/), and Cloudflare reserves the right to investigate your use of Tunnels for violations of such terms. If you intend to use Tunnels in production you should use a pre-created named tunnel by following: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps
2026-04-09T10:16:23Z INF Requesting new quick Tunnel on trycloudflare.com...
2026-04-09T10:16:28Z INF +--------------------------------------------------------------------------------------------+
2026-04-09T10:16:28Z INF |  Your quick Tunnel has been created! Visit it at (it may take some time to be reachable):  |
2026-04-09T10:16:28Z INF |  https://recipients-teachers-really-troops.trycloudflare.com                               |
2026-04-09T10:16:28Z INF +--------------------------------------------------------------------------------------------+
2026-04-09T10:16:28Z INF Cannot determine default configuration path. No file [config.yml config.yaml] in [~/.cloudflared ~/.cloudflare-warp ~/cloudflare-warp /etc/cloudflared /usr/local/etc/cloudflared]
2026-04-09T10:16:28Z INF Version 2026.3.0 (Checksum 4a9e50e6d6d798e90fcd01933151a90bf7edd99a0a55c28ad18f2e16263a5c30)
2026-04-09T10:16:28Z INF GOOS: linux, GOVersion: go1.24.13, GoArch: amd64
2026-04-09T10:16:28Z INF Settings: map[ha-connections:1 protocol:quic url:http://localhost:3000]
2026-04-09T10:16:28Z INF cloudflared will not automatically update if installed by a package manager.
2026-04-09T10:16:28Z INF Generated Connector ID: 03c3cb68-5df2-4eb5-a23f-299baac99773
2026-04-09T10:16:28Z INF Initial protocol quic
2026-04-09T10:16:28Z INF ICMP proxy will use 10.11.7.121 as source for IPv4
2026-04-09T10:16:28Z INF ICMP proxy will use fe80::5054:ff:fe93:32ef in zone eth0 as source for IPv6
2026-04-09T10:16:28Z WRN The user running cloudflared process has a GID (group ID) that is not within ping_group_range. You might need to add that user to a group within that range, or instead update the range to encompass a group the user is already in by modifying /proc/sys/net/ipv4/ping_group_range. Otherwise cloudflared will not be able to ping this network error="Group ID 1001 is not between ping group 1 to 0"
2026-04-09T10:16:28Z WRN ICMP proxy feature is disabled error="cannot create ICMPv4 proxy: Group ID 1001 is not between ping group 1 to 0 nor ICMPv6 proxy: socket: permission denied"
2026-04-09T10:16:28Z INF ICMP proxy will use 10.11.7.121 as source for IPv4
2026-04-09T10:16:28Z INF ICMP proxy will use fe80::5054:ff:fe93:32ef in zone eth0 as source for IPv6
2026-04-09T10:16:28Z INF Starting metrics server on 127.0.0.1:20243/metrics
2026-04-09T10:16:28Z INF Tunnel connection curve preferences: [X25519MLKEM768 CurveP256] connIndex=0 event=0 ip=198.41.192.67
2026/04/09 17:16:28 failed to sufficiently increase receive buffer size (was: 208 kiB, wanted: 7168 kiB, got: 416 kiB). See https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes for details.
2026-04-09T10:16:29Z INF Registered tunnel connection connIndex=0 connection=c5187257-20ca-41b5-9f53-46e63f8a1ecf event=0 ip=198.41.192.67 location=sin08 protocol=quic
2026-04-09T10:16:43Z INF Initiating graceful shutdown due to signal terminated ...
2026-04-09T10:16:43Z ERR failed to run the datagram handler error="context canceled" connIndex=0 event=0 ip=198.41.192.67
2026-04-09T10:16:43Z ERR failed to serve tunnel connection error="accept stream listener encountered a failure while serving" connIndex=0 event=0 ip=198.41.192.67
2026-04-09T10:16:43Z ERR Serve tunnel error error="accept stream listener encountered a failure while serving" connIndex=0 event=0 ip=198.41.192.67
2026-04-09T10:16:43Z INF Retrying connection in up to 1s connIndex=0 event=0 ip=198.41.192.67
2026-04-09T10:16:43Z ERR Connection terminated connIndex=0
2026-04-09T10:16:43Z ERR no more connections active and exiting
2026-04-09T10:16:43Z INF Tunnel server stopped
2026-04-09T10:16:43Z INF Metrics server stopped