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[GH-ISSUE #6301] No IPv6 fallback for domain resolution #15184

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opened 2026-04-23 07:01:27 -05:00 by GiteaMirror · 1 comment
GiteaMirror commented 2026-04-23 07:01:27 -05:00
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Originally created by @fabiopicchi on GitHub (Sep 18, 2025).
Original GitHub issue: https://github.com/dani-garcia/vaultwarden/issues/6301

Originally assigned to: @BlackDex on GitHub.

Prerequisites

Vaultwarden Support String

Your environment (Generated via diagnostics page)

  • Vaultwarden version: v1.34.3
  • Web-vault version: v2025.7.0
  • OS/Arch: linux/x86_64
  • Running within a container: true (Base: Debian)
  • Database type: SQLite
  • Database version: 3.50.2
  • Uses config.json: false
  • Uses a reverse proxy: true
  • IP Header check: true (X-Real-IP)
  • Internet access: false
  • Internet access via a proxy: false
  • DNS Check: true
  • TZ environment: Europe/Helsinki
  • Browser/Server Time Check: true
  • Server/NTP Time Check: n/a
  • Domain Configuration Check: false
  • HTTPS Check: false
  • Websocket Check: false
  • HTTP Response Checks: true

Config & Details (Generated via diagnostics page)

Show Config & Details

Config:

{
  "_duo_akey": null,
  "_enable_duo": true,
  "_enable_email_2fa": false,
  "_enable_smtp": true,
  "_enable_yubico": true,
  "_icon_service_csp": "",
  "_icon_service_url": "",
  "_ip_header_enabled": true,
  "_max_note_size": 10000,
  "_smtp_img_src": "***:",
  "admin_ratelimit_max_burst": 3,
  "admin_ratelimit_seconds": 300,
  "admin_session_lifetime": 20,
  "admin_token": "***",
  "allowed_connect_src": "",
  "allowed_iframe_ancestors": "",
  "attachments_folder": "data/attachments",
  "auth_request_purge_schedule": "30 * * * * *",
  "authenticator_disable_time_drift": false,
  "data_folder": "data",
  "database_conn_init": "",
  "database_max_conns": 10,
  "database_timeout": 30,
  "database_url": "***************",
  "db_connection_retries": 15,
  "disable_2fa_remember": false,
  "disable_admin_token": false,
  "disable_icon_download": false,
  "domain": "****://*********",
  "domain_origin": "****://*********",
  "domain_path": "",
  "domain_set": false,
  "duo_context_purge_schedule": "30 * * * * *",
  "duo_host": null,
  "duo_ikey": null,
  "duo_skey": null,
  "duo_use_iframe": false,
  "email_2fa_auto_fallback": false,
  "email_2fa_enforce_on_verified_invite": false,
  "email_attempts_limit": 3,
  "email_change_allowed": true,
  "email_expiration_time": 600,
  "email_token_size": 6,
  "emergency_access_allowed": true,
  "emergency_notification_reminder_schedule": "0 3 * * * *",
  "emergency_request_timeout_schedule": "0 7 * * * *",
  "enable_db_wal": true,
  "enable_websocket": true,
  "enforce_single_org_with_reset_pw_policy": false,
  "event_cleanup_schedule": "0 10 0 * * *",
  "events_days_retain": null,
  "experimental_client_feature_flags": "",
  "extended_logging": true,
  "helo_name": null,
  "hibp_api_key": null,
  "http_request_block_non_global_ips": true,
  "http_request_block_regex": null,
  "icon_blacklist_non_global_ips": true,
  "icon_blacklist_regex": null,
  "icon_cache_folder": "data/icon_cache",
  "icon_cache_negttl": 259200,
  "icon_cache_ttl": 2592000,
  "icon_download_timeout": 10,
  "icon_redirect_code": 302,
  "icon_service": "internal",
  "incomplete_2fa_schedule": "30 * * * * *",
  "incomplete_2fa_time_limit": 3,
  "increase_note_size_limit": false,
  "invitation_expiration_hours": 120,
  "invitation_org_name": "Vaultwarden",
  "invitations_allowed": false,
  "ip_header": "X-Real-IP",
  "job_poll_interval_ms": 30000,
  "log_file": "/data/bitwarden.log",
  "log_level": "info",
  "log_timestamp_format": "%Y-%m-%d %H:%M:%S.%3f",
  "login_ratelimit_max_burst": 10,
  "login_ratelimit_seconds": 60,
  "org_attachment_limit": null,
  "org_creation_users": "",
  "org_events_enabled": false,
  "org_groups_enabled": false,
  "password_hints_allowed": true,
  "password_iterations": 600000,
  "push_enabled": false,
  "push_identity_uri": "https://identity.bitwarden.com",
  "push_installation_id": "***",
  "push_installation_key": "***",
  "push_relay_uri": "https://push.bitwarden.com",
  "reload_templates": false,
  "require_device_email": false,
  "rsa_key_filename": "data/rsa_key",
  "send_purge_schedule": "0 5 * * * *",
  "sendmail_command": null,
  "sends_allowed": true,
  "sends_folder": "data/sends",
  "show_password_hint": false,
  "signups_allowed": false,
  "signups_domains_whitelist": "",
  "signups_verify": false,
  "signups_verify_resend_limit": 6,
  "signups_verify_resend_time": 3600,
  "smtp_accept_invalid_certs": false,
  "smtp_accept_invalid_hostnames": false,
  "smtp_auth_mechanism": null,
  "smtp_debug": false,
  "smtp_embed_images": true,
  "smtp_explicit_tls": null,
  "smtp_from": "",
  "smtp_from_name": "Vaultwarden",
  "smtp_host": null,
  "smtp_password": null,
  "smtp_port": 587,
  "smtp_security": "starttls",
  "smtp_ssl": null,
  "smtp_timeout": 15,
  "smtp_username": null,
  "templates_folder": "data/templates",
  "tmp_folder": "data/tmp",
  "trash_auto_delete_days": null,
  "trash_purge_schedule": "0 5 0 * * *",
  "use_sendmail": false,
  "use_syslog": false,
  "user_attachment_limit": null,
  "user_send_limit": null,
  "web_vault_enabled": true,
  "web_vault_folder": "web-vault/",
  "yubico_client_id": null,
  "yubico_secret_key": null,
  "yubico_server": null
}

Vaultwarden Build Version

v1.34.3

Deployment method

Official Container Image

Custom deployment method

Hi! I am using Vaultwarden for quite some time now and I recently moved it to an IPv6-only VPC from Hetzner to cut costs.

However, it seems that icon downloads stop working altogether. From what I could debug, the issue seems to be related to reqwest (or, at a lower level, hickory). Even though it can solve the domain name, it defaults to the IPv4 address with no fallback to IPv6.

Ideally, this configuration should be exposed in Vaultwarden.

Reverse Proxy

nginx 1.29.1

Host/Server Operating System

Linux

Operating System Version

Ubuntu 22.04.3 LTS

Clients

Web Vault

Client Version

v2025.7.0

Steps To Reproduce

  1. Spin up Vaultwarden in a machine without IPv4 interfaces
  2. Try to download icons
  3. Fail

Expected Result

Icons are downloaded through their IPv6 addresses.

Actual Result

An attempt is made to download it through IPv4, it times out, and no icon is downloaded.

Logs

[2025-09-18 16:44:50.282][request][INFO] GET /icons/secure.backblaze.com/icon.png
[2025-09-18 16:44:50.302][reqwest::connect][DEBUG] starting new connection: https://secure.backblaze.com/
[2025-09-18 16:44:50.306][hickory_proto::xfer::dns_handle][DEBUG] querying: secure.backblaze.com. A
[2025-09-18 16:44:50.310][hickory_resolver::name_server::name_server_pool][DEBUG] sending request: [Query { name: Name("secure.backblaze.com."), query_type: A, query_class: IN }]
[2025-09-18 16:44:50.313][hickory_resolver::name_server::name_server][DEBUG] reconnecting: NameServerConfig { socket_addr: 127.0.0.11:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None }
[2025-09-18 16:44:50.316][hickory_proto::xfer][DEBUG] enqueueing message:QUERY:[Query { name: Name("secure.backblaze.com."), query_type: A, query_class: IN }]
[2025-09-18 16:44:50.318][hickory_proto::udp::udp_client_stream][DEBUG] final message: ; header 37119:QUERY:RD:NoError:QUERY:0/0/0
; query
;; secure.backblaze.com. IN A

[2025-09-18 16:44:50.322][hickory_proto::udp::udp_stream][DEBUG] created socket successfully
[2025-09-18 16:44:50.330][hickory_proto::udp::udp_client_stream][DEBUG] received message id: 37119
[2025-09-18 16:44:50.332][hickory_proto::error][DEBUG] response: ; header 37119:RESPONSE:RD,RA:NoError:QUERY:2/0/0
; query
;; secure.backblaze.com. IN A
; answers 2
secure.backblaze.com. 300 IN A 104.17.5.3
secure.backblaze.com. 300 IN A 104.17.6.3
; nameservers 0
; additionals 0

[2025-09-18 16:44:50.339][hickory_proto::error][DEBUG] response: ; header 37119:RESPONSE:RD,RA:NoError:QUERY:2/0/0
; query
;; secure.backblaze.com. IN A
; answers 2
secure.backblaze.com. 300 IN A 104.17.5.3
secure.backblaze.com. 300 IN A 104.17.6.3
; nameservers 0
; additionals 0

[2025-09-18 16:44:50.343][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.5.3:443
[2025-09-18 16:44:50.346][reqwest::connect][DEBUG] starting new connection: http://secure.backblaze.com/
[2025-09-18 16:44:50.347][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.5.3:80
[2025-09-18 16:44:50.348][vaultwarden::api::icons][DEBUG] [get_icon_url]: Trying without subdomains 'backblaze.com'
[2025-09-18 16:44:50.350][reqwest::connect][DEBUG] starting new connection: https://backblaze.com/
[2025-09-18 16:44:50.351][hickory_proto::xfer::dns_handle][DEBUG] querying: backblaze.com. A
[2025-09-18 16:44:50.351][hickory_resolver::name_server::name_server_pool][DEBUG] sending request: [Query { name: Name("backblaze.com."), query_type: A, query_class: IN }]
[2025-09-18 16:44:50.353][hickory_resolver::name_server::name_server][DEBUG] existing connection: NameServerConfig { socket_addr: 127.0.0.11:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None }
[2025-09-18 16:44:50.354][hickory_proto::xfer][DEBUG] enqueueing message:QUERY:[Query { name: Name("backblaze.com."), query_type: A, query_class: IN }]
[2025-09-18 16:44:50.354][hickory_proto::udp::udp_client_stream][DEBUG] final message: ; header 43983:QUERY:RD:NoError:QUERY:0/0/0
; query
;; backblaze.com. IN A

[2025-09-18 16:44:50.357][hickory_proto::udp::udp_stream][DEBUG] created socket successfully
[2025-09-18 16:44:50.365][hickory_proto::udp::udp_client_stream][DEBUG] received message id: 43983
[2025-09-18 16:44:50.365][hickory_proto::error][DEBUG] response: ; header 43983:RESPONSE:RD,RA:NoError:QUERY:2/0/0
; query
;; backblaze.com. IN A
; answers 2
backblaze.com. 300 IN A 104.17.6.3
backblaze.com. 300 IN A 104.17.5.3
; nameservers 0
; additionals 0

[2025-09-18 16:44:50.367][hickory_proto::error][DEBUG] response: ; header 43983:RESPONSE:RD,RA:NoError:QUERY:2/0/0
; query
;; backblaze.com. IN A
; answers 2
backblaze.com. 300 IN A 104.17.6.3
backblaze.com. 300 IN A 104.17.5.3
; nameservers 0
; additionals 0

[2025-09-18 16:44:50.371][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.6.3:443
[2025-09-18 16:44:53.410][reqwest::connect][DEBUG] starting new connection: http://backblaze.com/
[2025-09-18 16:44:53.410][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.6.3:80
[2025-09-18 16:44:56.450][reqwest::connect][DEBUG] starting new connection: https://secure.backblaze.com/
[2025-09-18 16:44:56.450][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.5.3:443
[2025-09-18 16:44:59.490][vaultwarden::api::icons][WARN] Unable to download icon: Req.
[CAUSE] reqwest::Error {
    kind: Request,
    url: "https://secure.backblaze.com/favicon.ico",
    source: hyper_util::client::legacy::Error(
        Connect,
        ConnectError(
            "tcp connect error",
            104.17.5.3:443,
            Os {
                code: 101,
                kind: NetworkUnreachable,
                message: "Network is unreachable",
            },
        ),
    ),
}
[2025-09-18 16:44:59.495][response][INFO] (icon_internal) GET /icons/<domain>/icon.png => 200 OK

Screenshots or Videos

No response

Additional Context

No response

Originally created by @fabiopicchi on GitHub (Sep 18, 2025). Original GitHub issue: https://github.com/dani-garcia/vaultwarden/issues/6301 Originally assigned to: @BlackDex on GitHub. ### Prerequisites - [x] I have searched the existing **Closed _AND_ Open** [Issues](https://github.com/dani-garcia/vaultwarden/issues?q=is%3Aissue%20) **_AND_** [Discussions](https://github.com/dani-garcia/vaultwarden/discussions?discussions_q=) - [x] I have searched and read the [documentation](https://github.com/dani-garcia/vaultwarden/wiki/) ### Vaultwarden Support String ### Your environment (Generated via diagnostics page) * Vaultwarden version: v1.34.3 * Web-vault version: v2025.7.0 * OS/Arch: linux/x86_64 * Running within a container: true (Base: Debian) * Database type: SQLite * Database version: 3.50.2 * Uses config.json: false * Uses a reverse proxy: true * IP Header check: true (X-Real-IP) * Internet access: false * Internet access via a proxy: false * DNS Check: true * TZ environment: Europe/Helsinki * Browser/Server Time Check: true * Server/NTP Time Check: n/a * Domain Configuration Check: false * HTTPS Check: false * Websocket Check: false * HTTP Response Checks: true ### Config & Details (Generated via diagnostics page) <details><summary>Show Config & Details</summary> **Config:** ```json { "_duo_akey": null, "_enable_duo": true, "_enable_email_2fa": false, "_enable_smtp": true, "_enable_yubico": true, "_icon_service_csp": "", "_icon_service_url": "", "_ip_header_enabled": true, "_max_note_size": 10000, "_smtp_img_src": "***:", "admin_ratelimit_max_burst": 3, "admin_ratelimit_seconds": 300, "admin_session_lifetime": 20, "admin_token": "***", "allowed_connect_src": "", "allowed_iframe_ancestors": "", "attachments_folder": "data/attachments", "auth_request_purge_schedule": "30 * * * * *", "authenticator_disable_time_drift": false, "data_folder": "data", "database_conn_init": "", "database_max_conns": 10, "database_timeout": 30, "database_url": "***************", "db_connection_retries": 15, "disable_2fa_remember": false, "disable_admin_token": false, "disable_icon_download": false, "domain": "****://*********", "domain_origin": "****://*********", "domain_path": "", "domain_set": false, "duo_context_purge_schedule": "30 * * * * *", "duo_host": null, "duo_ikey": null, "duo_skey": null, "duo_use_iframe": false, "email_2fa_auto_fallback": false, "email_2fa_enforce_on_verified_invite": false, "email_attempts_limit": 3, "email_change_allowed": true, "email_expiration_time": 600, "email_token_size": 6, "emergency_access_allowed": true, "emergency_notification_reminder_schedule": "0 3 * * * *", "emergency_request_timeout_schedule": "0 7 * * * *", "enable_db_wal": true, "enable_websocket": true, "enforce_single_org_with_reset_pw_policy": false, "event_cleanup_schedule": "0 10 0 * * *", "events_days_retain": null, "experimental_client_feature_flags": "", "extended_logging": true, "helo_name": null, "hibp_api_key": null, "http_request_block_non_global_ips": true, "http_request_block_regex": null, "icon_blacklist_non_global_ips": true, "icon_blacklist_regex": null, "icon_cache_folder": "data/icon_cache", "icon_cache_negttl": 259200, "icon_cache_ttl": 2592000, "icon_download_timeout": 10, "icon_redirect_code": 302, "icon_service": "internal", "incomplete_2fa_schedule": "30 * * * * *", "incomplete_2fa_time_limit": 3, "increase_note_size_limit": false, "invitation_expiration_hours": 120, "invitation_org_name": "Vaultwarden", "invitations_allowed": false, "ip_header": "X-Real-IP", "job_poll_interval_ms": 30000, "log_file": "/data/bitwarden.log", "log_level": "info", "log_timestamp_format": "%Y-%m-%d %H:%M:%S.%3f", "login_ratelimit_max_burst": 10, "login_ratelimit_seconds": 60, "org_attachment_limit": null, "org_creation_users": "", "org_events_enabled": false, "org_groups_enabled": false, "password_hints_allowed": true, "password_iterations": 600000, "push_enabled": false, "push_identity_uri": "https://identity.bitwarden.com", "push_installation_id": "***", "push_installation_key": "***", "push_relay_uri": "https://push.bitwarden.com", "reload_templates": false, "require_device_email": false, "rsa_key_filename": "data/rsa_key", "send_purge_schedule": "0 5 * * * *", "sendmail_command": null, "sends_allowed": true, "sends_folder": "data/sends", "show_password_hint": false, "signups_allowed": false, "signups_domains_whitelist": "", "signups_verify": false, "signups_verify_resend_limit": 6, "signups_verify_resend_time": 3600, "smtp_accept_invalid_certs": false, "smtp_accept_invalid_hostnames": false, "smtp_auth_mechanism": null, "smtp_debug": false, "smtp_embed_images": true, "smtp_explicit_tls": null, "smtp_from": "", "smtp_from_name": "Vaultwarden", "smtp_host": null, "smtp_password": null, "smtp_port": 587, "smtp_security": "starttls", "smtp_ssl": null, "smtp_timeout": 15, "smtp_username": null, "templates_folder": "data/templates", "tmp_folder": "data/tmp", "trash_auto_delete_days": null, "trash_purge_schedule": "0 5 0 * * *", "use_sendmail": false, "use_syslog": false, "user_attachment_limit": null, "user_send_limit": null, "web_vault_enabled": true, "web_vault_folder": "web-vault/", "yubico_client_id": null, "yubico_secret_key": null, "yubico_server": null } ``` </details> ### Vaultwarden Build Version v1.34.3 ### Deployment method Official Container Image ### Custom deployment method Hi! I am using Vaultwarden for quite some time now and I recently moved it to an IPv6-only VPC from Hetzner to cut costs. However, it seems that icon downloads stop working altogether. From what I could debug, the issue seems to be related to reqwest (or, at a lower level, hickory). Even though it can solve the domain name, it defaults to the IPv4 address with no fallback to IPv6. Ideally, this configuration should be exposed in Vaultwarden. ### Reverse Proxy nginx 1.29.1 ### Host/Server Operating System Linux ### Operating System Version Ubuntu 22.04.3 LTS ### Clients Web Vault ### Client Version v2025.7.0 ### Steps To Reproduce 1. Spin up Vaultwarden in a machine without IPv4 interfaces 2. Try to download icons 3. Fail ### Expected Result Icons are downloaded through their IPv6 addresses. ### Actual Result An attempt is made to download it through IPv4, it times out, and no icon is downloaded. ### Logs ```text [2025-09-18 16:44:50.282][request][INFO] GET /icons/secure.backblaze.com/icon.png [2025-09-18 16:44:50.302][reqwest::connect][DEBUG] starting new connection: https://secure.backblaze.com/ [2025-09-18 16:44:50.306][hickory_proto::xfer::dns_handle][DEBUG] querying: secure.backblaze.com. A [2025-09-18 16:44:50.310][hickory_resolver::name_server::name_server_pool][DEBUG] sending request: [Query { name: Name("secure.backblaze.com."), query_type: A, query_class: IN }] [2025-09-18 16:44:50.313][hickory_resolver::name_server::name_server][DEBUG] reconnecting: NameServerConfig { socket_addr: 127.0.0.11:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None } [2025-09-18 16:44:50.316][hickory_proto::xfer][DEBUG] enqueueing message:QUERY:[Query { name: Name("secure.backblaze.com."), query_type: A, query_class: IN }] [2025-09-18 16:44:50.318][hickory_proto::udp::udp_client_stream][DEBUG] final message: ; header 37119:QUERY:RD:NoError:QUERY:0/0/0 ; query ;; secure.backblaze.com. IN A [2025-09-18 16:44:50.322][hickory_proto::udp::udp_stream][DEBUG] created socket successfully [2025-09-18 16:44:50.330][hickory_proto::udp::udp_client_stream][DEBUG] received message id: 37119 [2025-09-18 16:44:50.332][hickory_proto::error][DEBUG] response: ; header 37119:RESPONSE:RD,RA:NoError:QUERY:2/0/0 ; query ;; secure.backblaze.com. IN A ; answers 2 secure.backblaze.com. 300 IN A 104.17.5.3 secure.backblaze.com. 300 IN A 104.17.6.3 ; nameservers 0 ; additionals 0 [2025-09-18 16:44:50.339][hickory_proto::error][DEBUG] response: ; header 37119:RESPONSE:RD,RA:NoError:QUERY:2/0/0 ; query ;; secure.backblaze.com. IN A ; answers 2 secure.backblaze.com. 300 IN A 104.17.5.3 secure.backblaze.com. 300 IN A 104.17.6.3 ; nameservers 0 ; additionals 0 [2025-09-18 16:44:50.343][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.5.3:443 [2025-09-18 16:44:50.346][reqwest::connect][DEBUG] starting new connection: http://secure.backblaze.com/ [2025-09-18 16:44:50.347][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.5.3:80 [2025-09-18 16:44:50.348][vaultwarden::api::icons][DEBUG] [get_icon_url]: Trying without subdomains 'backblaze.com' [2025-09-18 16:44:50.350][reqwest::connect][DEBUG] starting new connection: https://backblaze.com/ [2025-09-18 16:44:50.351][hickory_proto::xfer::dns_handle][DEBUG] querying: backblaze.com. A [2025-09-18 16:44:50.351][hickory_resolver::name_server::name_server_pool][DEBUG] sending request: [Query { name: Name("backblaze.com."), query_type: A, query_class: IN }] [2025-09-18 16:44:50.353][hickory_resolver::name_server::name_server][DEBUG] existing connection: NameServerConfig { socket_addr: 127.0.0.11:53, protocol: Udp, tls_dns_name: None, http_endpoint: None, trust_negative_responses: false, bind_addr: None } [2025-09-18 16:44:50.354][hickory_proto::xfer][DEBUG] enqueueing message:QUERY:[Query { name: Name("backblaze.com."), query_type: A, query_class: IN }] [2025-09-18 16:44:50.354][hickory_proto::udp::udp_client_stream][DEBUG] final message: ; header 43983:QUERY:RD:NoError:QUERY:0/0/0 ; query ;; backblaze.com. IN A [2025-09-18 16:44:50.357][hickory_proto::udp::udp_stream][DEBUG] created socket successfully [2025-09-18 16:44:50.365][hickory_proto::udp::udp_client_stream][DEBUG] received message id: 43983 [2025-09-18 16:44:50.365][hickory_proto::error][DEBUG] response: ; header 43983:RESPONSE:RD,RA:NoError:QUERY:2/0/0 ; query ;; backblaze.com. IN A ; answers 2 backblaze.com. 300 IN A 104.17.6.3 backblaze.com. 300 IN A 104.17.5.3 ; nameservers 0 ; additionals 0 [2025-09-18 16:44:50.367][hickory_proto::error][DEBUG] response: ; header 43983:RESPONSE:RD,RA:NoError:QUERY:2/0/0 ; query ;; backblaze.com. IN A ; answers 2 backblaze.com. 300 IN A 104.17.6.3 backblaze.com. 300 IN A 104.17.5.3 ; nameservers 0 ; additionals 0 [2025-09-18 16:44:50.371][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.6.3:443 [2025-09-18 16:44:53.410][reqwest::connect][DEBUG] starting new connection: http://backblaze.com/ [2025-09-18 16:44:53.410][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.6.3:80 [2025-09-18 16:44:56.450][reqwest::connect][DEBUG] starting new connection: https://secure.backblaze.com/ [2025-09-18 16:44:56.450][hyper_util::client::legacy::connect::http][DEBUG] connecting to 104.17.5.3:443 [2025-09-18 16:44:59.490][vaultwarden::api::icons][WARN] Unable to download icon: Req. [CAUSE] reqwest::Error { kind: Request, url: "https://secure.backblaze.com/favicon.ico", source: hyper_util::client::legacy::Error( Connect, ConnectError( "tcp connect error", 104.17.5.3:443, Os { code: 101, kind: NetworkUnreachable, message: "Network is unreachable", }, ), ), } [2025-09-18 16:44:59.495][response][INFO] (icon_internal) GET /icons/<domain>/icon.png => 200 OK ``` ### Screenshots or Videos _No response_ ### Additional Context _No response_
GiteaMirror added the enhancement label 2026-04-23 07:01:27 -05:00
GiteaMirror commented 2026-04-23 07:01:29 -05:00
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@BlackDex commented on GitHub (Nov 25, 2025):

Should be resolved via #6494.

It will still resolve IPv4 records when there are no IPv6 records.
For this I would recommend to setup a DNS64+NAT64 or use a public service, either Public DNS64 + own NAT64 or both Public services. Some information can be found here: https://nat64.net/public-providers

For example, github.com will not work on IPv6 only systems, and a DNS64+NAT64 is mandatory for this to work as far as I know.

<!-- gh-comment-id:3577557423 --> @BlackDex commented on GitHub (Nov 25, 2025): Should be resolved via #6494. It will still resolve IPv4 records when there are no IPv6 records. For this I would recommend to setup a DNS64+NAT64 or use a public service, either Public DNS64 + own NAT64 or both Public services. Some information can be found here: https://nat64.net/public-providers For example, github.com will not work on IPv6 only systems, and a DNS64+NAT64 is mandatory for this to work as far as I know.
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Reference: github-starred/vaultwarden#15184
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