Add DNS provider for Core-Networks (#2101)

README.md

@@ -58,36 +58,36 @@ Detailed documentation is available [here](https://go-acme.github.io/lego/dns).
 | [Azure (deprecated)](https://go-acme.github.io/lego/dns/azure/)                 | [Azure DNS](https://go-acme.github.io/lego/dns/azuredns/)                       | [Bindman](https://go-acme.github.io/lego/dns/bindman/)                          | [Bluecat](https://go-acme.github.io/lego/dns/bluecat/)                          |
 | [Brandit](https://go-acme.github.io/lego/dns/brandit/)                          | [Bunny](https://go-acme.github.io/lego/dns/bunny/)                              | [Checkdomain](https://go-acme.github.io/lego/dns/checkdomain/)                  | [Civo](https://go-acme.github.io/lego/dns/civo/)                                |
 | [Cloud.ru](https://go-acme.github.io/lego/dns/cloudru/)                         | [CloudDNS](https://go-acme.github.io/lego/dns/clouddns/)                        | [Cloudflare](https://go-acme.github.io/lego/dns/cloudflare/)                    | [ClouDNS](https://go-acme.github.io/lego/dns/cloudns/)                          |
-| [CloudXNS](https://go-acme.github.io/lego/dns/cloudxns/)                        | [ConoHa](https://go-acme.github.io/lego/dns/conoha/)                            | [Constellix](https://go-acme.github.io/lego/dns/constellix/)                    | [CPanel/WHM](https://go-acme.github.io/lego/dns/cpanel/)                        |
+| [CloudXNS](https://go-acme.github.io/lego/dns/cloudxns/)                        | [ConoHa](https://go-acme.github.io/lego/dns/conoha/)                            | [Constellix](https://go-acme.github.io/lego/dns/constellix/)                    | [Core-Networks](https://go-acme.github.io/lego/dns/corenetworks/)               |
-| [Derak Cloud](https://go-acme.github.io/lego/dns/derak/)                        | [deSEC.io](https://go-acme.github.io/lego/dns/desec/)                           | [Designate DNSaaS for Openstack](https://go-acme.github.io/lego/dns/designate/) | [Digital Ocean](https://go-acme.github.io/lego/dns/digitalocean/)               |
+| [CPanel/WHM](https://go-acme.github.io/lego/dns/cpanel/)                        | [Derak Cloud](https://go-acme.github.io/lego/dns/derak/)                        | [deSEC.io](https://go-acme.github.io/lego/dns/desec/)                           | [Designate DNSaaS for Openstack](https://go-acme.github.io/lego/dns/designate/) |
-| [DirectAdmin](https://go-acme.github.io/lego/dns/directadmin/)                  | [DNS Made Easy](https://go-acme.github.io/lego/dns/dnsmadeeasy/)                | [dnsHome.de](https://go-acme.github.io/lego/dns/dnshomede/)                     | [DNSimple](https://go-acme.github.io/lego/dns/dnsimple/)                        |
+| [Digital Ocean](https://go-acme.github.io/lego/dns/digitalocean/)               | [DirectAdmin](https://go-acme.github.io/lego/dns/directadmin/)                  | [DNS Made Easy](https://go-acme.github.io/lego/dns/dnsmadeeasy/)                | [dnsHome.de](https://go-acme.github.io/lego/dns/dnshomede/)                     |
-| [DNSPod (deprecated)](https://go-acme.github.io/lego/dns/dnspod/)               | [Domain Offensive (do.de)](https://go-acme.github.io/lego/dns/dode/)            | [Domeneshop](https://go-acme.github.io/lego/dns/domeneshop/)                    | [DreamHost](https://go-acme.github.io/lego/dns/dreamhost/)                      |
+| [DNSimple](https://go-acme.github.io/lego/dns/dnsimple/)                        | [DNSPod (deprecated)](https://go-acme.github.io/lego/dns/dnspod/)               | [Domain Offensive (do.de)](https://go-acme.github.io/lego/dns/dode/)            | [Domeneshop](https://go-acme.github.io/lego/dns/domeneshop/)                    |
-| [Duck DNS](https://go-acme.github.io/lego/dns/duckdns/)                         | [Dyn](https://go-acme.github.io/lego/dns/dyn/)                                  | [Dynu](https://go-acme.github.io/lego/dns/dynu/)                                | [EasyDNS](https://go-acme.github.io/lego/dns/easydns/)                          |
+| [DreamHost](https://go-acme.github.io/lego/dns/dreamhost/)                      | [Duck DNS](https://go-acme.github.io/lego/dns/duckdns/)                         | [Dyn](https://go-acme.github.io/lego/dns/dyn/)                                  | [Dynu](https://go-acme.github.io/lego/dns/dynu/)                                |
-| [Efficient IP](https://go-acme.github.io/lego/dns/efficientip/)                 | [Epik](https://go-acme.github.io/lego/dns/epik/)                                | [Exoscale](https://go-acme.github.io/lego/dns/exoscale/)                        | [External program](https://go-acme.github.io/lego/dns/exec/)                    |
+| [EasyDNS](https://go-acme.github.io/lego/dns/easydns/)                          | [Efficient IP](https://go-acme.github.io/lego/dns/efficientip/)                 | [Epik](https://go-acme.github.io/lego/dns/epik/)                                | [Exoscale](https://go-acme.github.io/lego/dns/exoscale/)                        |
-| [freemyip.com](https://go-acme.github.io/lego/dns/freemyip/)                    | [G-Core](https://go-acme.github.io/lego/dns/gcore/)                             | [Gandi Live DNS (v5)](https://go-acme.github.io/lego/dns/gandiv5/)              | [Gandi](https://go-acme.github.io/lego/dns/gandi/)                              |
+| [External program](https://go-acme.github.io/lego/dns/exec/)                    | [freemyip.com](https://go-acme.github.io/lego/dns/freemyip/)                    | [G-Core](https://go-acme.github.io/lego/dns/gcore/)                             | [Gandi Live DNS (v5)](https://go-acme.github.io/lego/dns/gandiv5/)              |
-| [Glesys](https://go-acme.github.io/lego/dns/glesys/)                            | [Go Daddy](https://go-acme.github.io/lego/dns/godaddy/)                         | [Google Cloud](https://go-acme.github.io/lego/dns/gcloud/)                      | [Google Domains](https://go-acme.github.io/lego/dns/googledomains/)             |
+| [Gandi](https://go-acme.github.io/lego/dns/gandi/)                              | [Glesys](https://go-acme.github.io/lego/dns/glesys/)                            | [Go Daddy](https://go-acme.github.io/lego/dns/godaddy/)                         | [Google Cloud](https://go-acme.github.io/lego/dns/gcloud/)                      |
-| [Hetzner](https://go-acme.github.io/lego/dns/hetzner/)                          | [Hosting.de](https://go-acme.github.io/lego/dns/hostingde/)                     | [Hosttech](https://go-acme.github.io/lego/dns/hosttech/)                        | [HTTP request](https://go-acme.github.io/lego/dns/httpreq/)                     |
+| [Google Domains](https://go-acme.github.io/lego/dns/googledomains/)             | [Hetzner](https://go-acme.github.io/lego/dns/hetzner/)                          | [Hosting.de](https://go-acme.github.io/lego/dns/hostingde/)                     | [Hosttech](https://go-acme.github.io/lego/dns/hosttech/)                        |
-| [http.net](https://go-acme.github.io/lego/dns/httpnet/)                         | [Huawei Cloud](https://go-acme.github.io/lego/dns/huaweicloud/)                 | [Hurricane Electric DNS](https://go-acme.github.io/lego/dns/hurricane/)         | [HyperOne](https://go-acme.github.io/lego/dns/hyperone/)                        |
+| [HTTP request](https://go-acme.github.io/lego/dns/httpreq/)                     | [http.net](https://go-acme.github.io/lego/dns/httpnet/)                         | [Huawei Cloud](https://go-acme.github.io/lego/dns/huaweicloud/)                 | [Hurricane Electric DNS](https://go-acme.github.io/lego/dns/hurricane/)         |
-| [IBM Cloud (SoftLayer)](https://go-acme.github.io/lego/dns/ibmcloud/)           | [IIJ DNS Platform Service](https://go-acme.github.io/lego/dns/iijdpf/)          | [Infoblox](https://go-acme.github.io/lego/dns/infoblox/)                        | [Infomaniak](https://go-acme.github.io/lego/dns/infomaniak/)                    |
+| [HyperOne](https://go-acme.github.io/lego/dns/hyperone/)                        | [IBM Cloud (SoftLayer)](https://go-acme.github.io/lego/dns/ibmcloud/)           | [IIJ DNS Platform Service](https://go-acme.github.io/lego/dns/iijdpf/)          | [Infoblox](https://go-acme.github.io/lego/dns/infoblox/)                        |
-| [Internet Initiative Japan](https://go-acme.github.io/lego/dns/iij/)            | [Internet.bs](https://go-acme.github.io/lego/dns/internetbs/)                   | [INWX](https://go-acme.github.io/lego/dns/inwx/)                                | [Ionos](https://go-acme.github.io/lego/dns/ionos/)                              |
+| [Infomaniak](https://go-acme.github.io/lego/dns/infomaniak/)                    | [Internet Initiative Japan](https://go-acme.github.io/lego/dns/iij/)            | [Internet.bs](https://go-acme.github.io/lego/dns/internetbs/)                   | [INWX](https://go-acme.github.io/lego/dns/inwx/)                                |
-| [IPv64](https://go-acme.github.io/lego/dns/ipv64/)                              | [iwantmyname](https://go-acme.github.io/lego/dns/iwantmyname/)                  | [Joker](https://go-acme.github.io/lego/dns/joker/)                              | [Joohoi's ACME-DNS](https://go-acme.github.io/lego/dns/acme-dns/)               |
+| [Ionos](https://go-acme.github.io/lego/dns/ionos/)                              | [IPv64](https://go-acme.github.io/lego/dns/ipv64/)                              | [iwantmyname](https://go-acme.github.io/lego/dns/iwantmyname/)                  | [Joker](https://go-acme.github.io/lego/dns/joker/)                              |
-| [Liara](https://go-acme.github.io/lego/dns/liara/)                              | [Lima-City](https://go-acme.github.io/lego/dns/limacity/)                       | [Linode (v4)](https://go-acme.github.io/lego/dns/linode/)                       | [Liquid Web](https://go-acme.github.io/lego/dns/liquidweb/)                     |
+| [Joohoi's ACME-DNS](https://go-acme.github.io/lego/dns/acme-dns/)               | [Liara](https://go-acme.github.io/lego/dns/liara/)                              | [Lima-City](https://go-acme.github.io/lego/dns/limacity/)                       | [Linode (v4)](https://go-acme.github.io/lego/dns/linode/)                       |
-| [Loopia](https://go-acme.github.io/lego/dns/loopia/)                            | [LuaDNS](https://go-acme.github.io/lego/dns/luadns/)                            | [Mail-in-a-Box](https://go-acme.github.io/lego/dns/mailinabox/)                 | [Manual](https://go-acme.github.io/lego/dns/manual/)                            |
+| [Liquid Web](https://go-acme.github.io/lego/dns/liquidweb/)                     | [Loopia](https://go-acme.github.io/lego/dns/loopia/)                            | [LuaDNS](https://go-acme.github.io/lego/dns/luadns/)                            | [Mail-in-a-Box](https://go-acme.github.io/lego/dns/mailinabox/)                 |
-| [Metaname](https://go-acme.github.io/lego/dns/metaname/)                        | [mijn.host](https://go-acme.github.io/lego/dns/mijnhost/)                       | [Mittwald](https://go-acme.github.io/lego/dns/mittwald/)                        | [MyDNS.jp](https://go-acme.github.io/lego/dns/mydnsjp/)                         |
+| [Manual](https://go-acme.github.io/lego/dns/manual/)                            | [Metaname](https://go-acme.github.io/lego/dns/metaname/)                        | [mijn.host](https://go-acme.github.io/lego/dns/mijnhost/)                       | [Mittwald](https://go-acme.github.io/lego/dns/mittwald/)                        |
-| [MythicBeasts](https://go-acme.github.io/lego/dns/mythicbeasts/)                | [Name.com](https://go-acme.github.io/lego/dns/namedotcom/)                      | [Namecheap](https://go-acme.github.io/lego/dns/namecheap/)                      | [Namesilo](https://go-acme.github.io/lego/dns/namesilo/)                        |
+| [MyDNS.jp](https://go-acme.github.io/lego/dns/mydnsjp/)                         | [MythicBeasts](https://go-acme.github.io/lego/dns/mythicbeasts/)                | [Name.com](https://go-acme.github.io/lego/dns/namedotcom/)                      | [Namecheap](https://go-acme.github.io/lego/dns/namecheap/)                      |
-| [NearlyFreeSpeech.NET](https://go-acme.github.io/lego/dns/nearlyfreespeech/)    | [Netcup](https://go-acme.github.io/lego/dns/netcup/)                            | [Netlify](https://go-acme.github.io/lego/dns/netlify/)                          | [Nicmanager](https://go-acme.github.io/lego/dns/nicmanager/)                    |
+| [Namesilo](https://go-acme.github.io/lego/dns/namesilo/)                        | [NearlyFreeSpeech.NET](https://go-acme.github.io/lego/dns/nearlyfreespeech/)    | [Netcup](https://go-acme.github.io/lego/dns/netcup/)                            | [Netlify](https://go-acme.github.io/lego/dns/netlify/)                          |
-| [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/)                        | [Njalla](https://go-acme.github.io/lego/dns/njalla/)                            | [Nodion](https://go-acme.github.io/lego/dns/nodion/)                            | [NS1](https://go-acme.github.io/lego/dns/ns1/)                                  |
+| [Nicmanager](https://go-acme.github.io/lego/dns/nicmanager/)                    | [NIFCloud](https://go-acme.github.io/lego/dns/nifcloud/)                        | [Njalla](https://go-acme.github.io/lego/dns/njalla/)                            | [Nodion](https://go-acme.github.io/lego/dns/nodion/)                            |
-| [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/)                   | [Oracle Cloud](https://go-acme.github.io/lego/dns/oraclecloud/)                 | [OVH](https://go-acme.github.io/lego/dns/ovh/)                                  | [plesk.com](https://go-acme.github.io/lego/dns/plesk/)                          |
+| [NS1](https://go-acme.github.io/lego/dns/ns1/)                                  | [Open Telekom Cloud](https://go-acme.github.io/lego/dns/otc/)                   | [Oracle Cloud](https://go-acme.github.io/lego/dns/oraclecloud/)                 | [OVH](https://go-acme.github.io/lego/dns/ovh/)                                  |
-| [Porkbun](https://go-acme.github.io/lego/dns/porkbun/)                          | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/)                            | [Rackspace](https://go-acme.github.io/lego/dns/rackspace/)                      | [RcodeZero](https://go-acme.github.io/lego/dns/rcodezero/)                      |
+| [plesk.com](https://go-acme.github.io/lego/dns/plesk/)                          | [Porkbun](https://go-acme.github.io/lego/dns/porkbun/)                          | [PowerDNS](https://go-acme.github.io/lego/dns/pdns/)                            | [Rackspace](https://go-acme.github.io/lego/dns/rackspace/)                      |
-| [reg.ru](https://go-acme.github.io/lego/dns/regru/)                             | [RFC2136](https://go-acme.github.io/lego/dns/rfc2136/)                          | [RimuHosting](https://go-acme.github.io/lego/dns/rimuhosting/)                  | [Sakura Cloud](https://go-acme.github.io/lego/dns/sakuracloud/)                 |
+| [RcodeZero](https://go-acme.github.io/lego/dns/rcodezero/)                      | [reg.ru](https://go-acme.github.io/lego/dns/regru/)                             | [RFC2136](https://go-acme.github.io/lego/dns/rfc2136/)                          | [RimuHosting](https://go-acme.github.io/lego/dns/rimuhosting/)                  |
-| [Scaleway](https://go-acme.github.io/lego/dns/scaleway/)                        | [Selectel v2](https://go-acme.github.io/lego/dns/selectelv2/)                   | [Selectel](https://go-acme.github.io/lego/dns/selectel/)                        | [SelfHost.(de/eu)](https://go-acme.github.io/lego/dns/selfhostde/)              |
+| [Sakura Cloud](https://go-acme.github.io/lego/dns/sakuracloud/)                 | [Scaleway](https://go-acme.github.io/lego/dns/scaleway/)                        | [Selectel v2](https://go-acme.github.io/lego/dns/selectelv2/)                   | [Selectel](https://go-acme.github.io/lego/dns/selectel/)                        |
-| [Servercow](https://go-acme.github.io/lego/dns/servercow/)                      | [Shellrent](https://go-acme.github.io/lego/dns/shellrent/)                      | [Simply.com](https://go-acme.github.io/lego/dns/simply/)                        | [Sonic](https://go-acme.github.io/lego/dns/sonic/)                              |
+| [SelfHost.(de/eu)](https://go-acme.github.io/lego/dns/selfhostde/)              | [Servercow](https://go-acme.github.io/lego/dns/servercow/)                      | [Shellrent](https://go-acme.github.io/lego/dns/shellrent/)                      | [Simply.com](https://go-acme.github.io/lego/dns/simply/)                        |
-| [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      | [Tencent Cloud DNS](https://go-acme.github.io/lego/dns/tencentcloud/)           | [Timeweb Cloud](https://go-acme.github.io/lego/dns/timewebcloud/)               | [TransIP](https://go-acme.github.io/lego/dns/transip/)                          |
+| [Sonic](https://go-acme.github.io/lego/dns/sonic/)                              | [Stackpath](https://go-acme.github.io/lego/dns/stackpath/)                      | [Tencent Cloud DNS](https://go-acme.github.io/lego/dns/tencentcloud/)           | [Timeweb Cloud](https://go-acme.github.io/lego/dns/timewebcloud/)               |
-| [UKFast SafeDNS](https://go-acme.github.io/lego/dns/safedns/)                   | [Ultradns](https://go-acme.github.io/lego/dns/ultradns/)                        | [Variomedia](https://go-acme.github.io/lego/dns/variomedia/)                    | [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/)                          |
+| [TransIP](https://go-acme.github.io/lego/dns/transip/)                          | [UKFast SafeDNS](https://go-acme.github.io/lego/dns/safedns/)                   | [Ultradns](https://go-acme.github.io/lego/dns/ultradns/)                        | [Variomedia](https://go-acme.github.io/lego/dns/variomedia/)                    |
-| [Vercel](https://go-acme.github.io/lego/dns/vercel/)                            | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/)                 | [VinylDNS](https://go-acme.github.io/lego/dns/vinyldns/)                        | [VK Cloud](https://go-acme.github.io/lego/dns/vkcloud/)                         |
+| [VegaDNS](https://go-acme.github.io/lego/dns/vegadns/)                          | [Vercel](https://go-acme.github.io/lego/dns/vercel/)                            | [Versio.[nl/eu/uk]](https://go-acme.github.io/lego/dns/versio/)                 | [VinylDNS](https://go-acme.github.io/lego/dns/vinyldns/)                        |
-| [Volcano Engine/火山引擎](https://go-acme.github.io/lego/dns/volcengine/)           | [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            | [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              | [Webnames](https://go-acme.github.io/lego/dns/webnames/)                        |
+| [VK Cloud](https://go-acme.github.io/lego/dns/vkcloud/)                         | [Volcano Engine/火山引擎](https://go-acme.github.io/lego/dns/volcengine/)           | [Vscale](https://go-acme.github.io/lego/dns/vscale/)                            | [Vultr](https://go-acme.github.io/lego/dns/vultr/)                              |
-| [Websupport](https://go-acme.github.io/lego/dns/websupport/)                    | [WEDOS](https://go-acme.github.io/lego/dns/wedos/)                              | [Yandex 360](https://go-acme.github.io/lego/dns/yandex360/)                     | [Yandex Cloud](https://go-acme.github.io/lego/dns/yandexcloud/)                 |
+| [Webnames](https://go-acme.github.io/lego/dns/webnames/)                        | [Websupport](https://go-acme.github.io/lego/dns/websupport/)                    | [WEDOS](https://go-acme.github.io/lego/dns/wedos/)                              | [Yandex 360](https://go-acme.github.io/lego/dns/yandex360/)                     |
-| [Yandex PDD](https://go-acme.github.io/lego/dns/yandex/)                        | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/)                           | [Zonomi](https://go-acme.github.io/lego/dns/zonomi/)                            |                                                                                 |
+| [Yandex Cloud](https://go-acme.github.io/lego/dns/yandexcloud/)                 | [Yandex PDD](https://go-acme.github.io/lego/dns/yandex/)                        | [Zone.ee](https://go-acme.github.io/lego/dns/zoneee/)                           | [Zonomi](https://go-acme.github.io/lego/dns/zonomi/)                            |
 
 <!-- END DNS PROVIDERS LIST -->
 

cmd/zz_gen_cmd_dnshelp.go

@@ -34,6 +34,7 @@ func allDNSCodes() string {
 		"cloudxns",
 		"conoha",
 		"constellix",
+		"corenetworks",
 		"cpanel",
 		"derak",
 		"desec",
@@ -624,6 +625,28 @@ func displayDNSHelp(w io.Writer, name string) error {
 		ew.writeln()
 		ew.writeln(`More information: https://go-acme.github.io/lego/dns/constellix`)
 
+	case "corenetworks":
+		// generated from: providers/dns/corenetworks/corenetworks.toml
+		ew.writeln(`Configuration for Core-Networks.`)
+		ew.writeln(`Code:	'corenetworks'`)
+		ew.writeln(`Since:	'v4.20.0'`)
+		ew.writeln()
+
+		ew.writeln(`Credentials:`)
+		ew.writeln(`	- "CORENETWORKS_LOGIN":	The username of the API account`)
+		ew.writeln(`	- "CORENETWORKS_PASSWORD":	The password`)
+		ew.writeln()
+
+		ew.writeln(`Additional Configuration:`)
+		ew.writeln(`	- "CORENETWORKS_HTTP_TIMEOUT":	API request timeout`)
+		ew.writeln(`	- "CORENETWORKS_POLLING_INTERVAL":	Time between DNS propagation check`)
+		ew.writeln(`	- "CORENETWORKS_PROPAGATION_TIMEOUT":	Maximum waiting time for DNS propagation`)
+		ew.writeln(`	- "CORENETWORKS_SEQUENCE_INTERVAL":	Time between sequential requests`)
+		ew.writeln(`	- "CORENETWORKS_TTL":	The TTL of the TXT record used for the DNS challenge`)
+
+		ew.writeln()
+		ew.writeln(`More information: https://go-acme.github.io/lego/dns/corenetworks`)
+
 	case "cpanel":
 		// generated from: providers/dns/cpanel/cpanel.toml
 		ew.writeln(`Configuration for CPanel/WHM.`)

docs/content/dns/zz_gen_corenetworks.md

@@ -0,0 +1,70 @@
+---
+title: "Core-Networks"
+date: 2019-03-03T16:39:46+01:00
+draft: false
+slug: corenetworks
+dnsprovider:
+  since:    "v4.20.0"
+  code:     "corenetworks"
+  url:      "https://www.core-networks.de/"
+---
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/corenetworks/corenetworks.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+
+
+Configuration for [Core-Networks](https://www.core-networks.de/).
+
+
+<!--more-->
+
+- Code: `corenetworks`
+- Since: v4.20.0
+
+
+Here is an example bash command using the Core-Networks provider:
+
+```bash
+CORENETWORKS_LOGIN="xxxx" \
+CORENETWORKS_PASSWORD="yyyy" \
+lego --email myemail@example.com --dns corenetworks --domains my.example.org run
+```
+
+
+
+
+## Credentials
+
+| Environment Variable Name | Description |
+|-----------------------|-------------|
+| `CORENETWORKS_LOGIN` | The username of the API account |
+| `CORENETWORKS_PASSWORD` | The password |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here]({{% ref "dns#configuration-and-credentials" %}}).
+
+
+## Additional Configuration
+
+| Environment Variable Name | Description |
+|--------------------------------|-------------|
+| `CORENETWORKS_HTTP_TIMEOUT` | API request timeout |
+| `CORENETWORKS_POLLING_INTERVAL` | Time between DNS propagation check |
+| `CORENETWORKS_PROPAGATION_TIMEOUT` | Maximum waiting time for DNS propagation |
+| `CORENETWORKS_SEQUENCE_INTERVAL` | Time between sequential requests |
+| `CORENETWORKS_TTL` | The TTL of the TXT record used for the DNS challenge |
+
+The environment variable names can be suffixed by `_FILE` to reference a file instead of a value.
+More information [here]({{% ref "dns#configuration-and-credentials" %}}).
+
+
+
+
+## More information
+
+- [API documentation](https://beta.api.core-networks.de/doc/)
+
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->
+<!-- providers/dns/corenetworks/corenetworks.toml -->
+<!-- THIS DOCUMENTATION IS AUTO-GENERATED. PLEASE DO NOT EDIT. -->

docs/data/zz_cli_help.toml

@@ -141,7 +141,7 @@ To display the documentation for a specific DNS provider, run:
   $ lego dnshelp -c code
 
 Supported DNS providers:
-  acme-dns, alidns, allinkl, arvancloud, auroradns, autodns, azure, azuredns, bindman, bluecat, brandit, bunny, checkdomain, civo, clouddns, cloudflare, cloudns, cloudru, cloudxns, conoha, constellix, cpanel, derak, desec, designate, digitalocean, directadmin, dnshomede, dnsimple, dnsmadeeasy, dnspod, dode, domeneshop, dreamhost, duckdns, dyn, dynu, easydns, edgedns, efficientip, epik, exec, exoscale, freemyip, gandi, gandiv5, gcloud, gcore, glesys, godaddy, googledomains, hetzner, hostingde, hosttech, httpnet, httpreq, huaweicloud, hurricane, hyperone, ibmcloud, iij, iijdpf, infoblox, infomaniak, internetbs, inwx, ionos, ipv64, iwantmyname, joker, liara, lightsail, limacity, linode, liquidweb, loopia, luadns, mailinabox, manual, metaname, mijnhost, mittwald, mydnsjp, mythicbeasts, namecheap, namedotcom, namesilo, nearlyfreespeech, netcup, netlify, nicmanager, nifcloud, njalla, nodion, ns1, oraclecloud, otc, ovh, pdns, plesk, porkbun, rackspace, rcodezero, regru, rfc2136, rimuhosting, route53, safedns, sakuracloud, scaleway, selectel, selectelv2, selfhostde, servercow, shellrent, simply, sonic, stackpath, tencentcloud, timewebcloud, transip, ultradns, variomedia, vegadns, vercel, versio, vinyldns, vkcloud, volcengine, vscale, vultr, webnames, websupport, wedos, yandex, yandex360, yandexcloud, zoneee, zonomi
+  acme-dns, alidns, allinkl, arvancloud, auroradns, autodns, azure, azuredns, bindman, bluecat, brandit, bunny, checkdomain, civo, clouddns, cloudflare, cloudns, cloudru, cloudxns, conoha, constellix, corenetworks, cpanel, derak, desec, designate, digitalocean, directadmin, dnshomede, dnsimple, dnsmadeeasy, dnspod, dode, domeneshop, dreamhost, duckdns, dyn, dynu, easydns, edgedns, efficientip, epik, exec, exoscale, freemyip, gandi, gandiv5, gcloud, gcore, glesys, godaddy, googledomains, hetzner, hostingde, hosttech, httpnet, httpreq, huaweicloud, hurricane, hyperone, ibmcloud, iij, iijdpf, infoblox, infomaniak, internetbs, inwx, ionos, ipv64, iwantmyname, joker, liara, lightsail, limacity, linode, liquidweb, loopia, luadns, mailinabox, manual, metaname, mijnhost, mittwald, mydnsjp, mythicbeasts, namecheap, namedotcom, namesilo, nearlyfreespeech, netcup, netlify, nicmanager, nifcloud, njalla, nodion, ns1, oraclecloud, otc, ovh, pdns, plesk, porkbun, rackspace, rcodezero, regru, rfc2136, rimuhosting, route53, safedns, sakuracloud, scaleway, selectel, selectelv2, selfhostde, servercow, shellrent, simply, sonic, stackpath, tencentcloud, timewebcloud, transip, ultradns, variomedia, vegadns, vercel, versio, vinyldns, vkcloud, volcengine, vscale, vultr, webnames, websupport, wedos, yandex, yandex360, yandexcloud, zoneee, zonomi
 
 More information: https://go-acme.github.io/lego/dns
 """

providers/dns/corenetworks/corenetworks.go

@@ -0,0 +1,181 @@
+package corenetworks
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/go-acme/lego/v4/challenge/dns01"
+	"github.com/go-acme/lego/v4/platform/config/env"
+	"github.com/go-acme/lego/v4/providers/dns/corenetworks/internal"
+)
+
+// Environment variables names.
+const (
+	envNamespace = "CORENETWORKS_"
+
+	EnvLogin    = envNamespace + "LOGIN"
+	EnvPassword = envNamespace + "PASSWORD"
+
+	EnvTTL                = envNamespace + "TTL"
+	EnvPropagationTimeout = envNamespace + "PROPAGATION_TIMEOUT"
+	EnvPollingInterval    = envNamespace + "POLLING_INTERVAL"
+	EnvSequenceInterval   = envNamespace + "SEQUENCE_INTERVAL"
+	EnvHTTPTimeout        = envNamespace + "HTTP_TIMEOUT"
+)
+
+// Config is used to configure the creation of the DNSProvider.
+type Config struct {
+	Login              string
+	Password           string
+	PropagationTimeout time.Duration
+	PollingInterval    time.Duration
+	SequenceInterval   time.Duration
+	TTL                int
+	HTTPClient         *http.Client
+}
+
+// NewDefaultConfig returns a default configuration for the DNSProvider.
+func NewDefaultConfig() *Config {
+	return &Config{
+		TTL:                env.GetOrDefaultInt(EnvTTL, 3600),
+		PropagationTimeout: env.GetOrDefaultSecond(EnvPropagationTimeout, dns01.DefaultPropagationTimeout),
+		PollingInterval:    env.GetOrDefaultSecond(EnvPollingInterval, dns01.DefaultPollingInterval),
+		SequenceInterval:   env.GetOrDefaultSecond(EnvSequenceInterval, dns01.DefaultPropagationTimeout),
+		HTTPClient: &http.Client{
+			Timeout: env.GetOrDefaultSecond(EnvHTTPTimeout, 30*time.Second),
+		},
+	}
+}
+
+// DNSProvider implements the challenge.Provider interface.
+type DNSProvider struct {
+	config *Config
+	client *internal.Client
+}
+
+// NewDNSProvider returns a DNSProvider instance configured for Core-Networks.
+// Credentials must be passed in the environment variables: CORENETWORKS_LOGIN, CORENETWORKS_PASSWORD.
+func NewDNSProvider() (*DNSProvider, error) {
+	values, err := env.Get(EnvLogin, EnvPassword)
+	if err != nil {
+		return nil, fmt.Errorf("corenetworks: %w", err)
+	}
+
+	config := NewDefaultConfig()
+	config.Login = values[EnvLogin]
+	config.Password = values[EnvPassword]
+
+	return NewDNSProviderConfig(config)
+}
+
+// NewDNSProviderConfig return a DNSProvider instance configured for Bluecat DNS.
+func NewDNSProviderConfig(config *Config) (*DNSProvider, error) {
+	if config == nil {
+		return nil, errors.New("corenetworks: the configuration of the DNS provider is nil")
+	}
+
+	if config.Login == "" || config.Password == "" {
+		return nil, errors.New("corenetworks: credentials missing")
+	}
+
+	client := internal.NewClient(config.Login, config.Password)
+
+	if config.HTTPClient != nil {
+		client.HTTPClient = config.HTTPClient
+	}
+
+	return &DNSProvider{config: config, client: client}, nil
+}
+
+// Timeout returns the timeout and interval to use when checking for DNS propagation.
+// Adjusting here to cope with spikes in propagation times.
+func (d *DNSProvider) Timeout() (timeout, interval time.Duration) {
+	return d.config.PropagationTimeout, d.config.PollingInterval
+}
+
+// Sequential All DNS challenges for this provider will be resolved sequentially.
+// Returns the interval between each iteration.
+func (d *DNSProvider) Sequential() time.Duration {
+	return d.config.SequenceInterval
+}
+
+// Present creates a TXT record using the specified parameters.
+func (d *DNSProvider) Present(domain, token, keyAuth string) error {
+	info := dns01.GetChallengeInfo(domain, keyAuth)
+
+	ctx, err := d.client.CreateAuthenticatedContext(context.Background())
+	if err != nil {
+		return fmt.Errorf("create authentication token: %w", err)
+	}
+
+	zone, err := dns01.FindZoneByFqdn(info.EffectiveFQDN)
+	if err != nil {
+		return fmt.Errorf("corenetworks: could not find zone for domain %q: %w", domain, err)
+	}
+
+	subDomain, err := dns01.ExtractSubDomain(info.EffectiveFQDN, zone)
+	if err != nil {
+		return fmt.Errorf("corenetworks: %w", err)
+	}
+
+	record := internal.Record{
+		Name: subDomain,
+		TTL:  d.config.TTL,
+		Type: "TXT",
+		Data: info.Value,
+	}
+
+	err = d.client.AddRecord(ctx, dns01.UnFqdn(zone), record)
+	if err != nil {
+		return fmt.Errorf("corenetworks: add record: %w", err)
+	}
+
+	err = d.client.CommitRecords(ctx, dns01.UnFqdn(zone))
+	if err != nil {
+		return fmt.Errorf("corenetworks: commit records: %w", err)
+	}
+
+	return nil
+}
+
+// CleanUp removes the TXT record matching the specified parameters.
+func (d *DNSProvider) CleanUp(domain, token, keyAuth string) error {
+	info := dns01.GetChallengeInfo(domain, keyAuth)
+
+	ctx, err := d.client.CreateAuthenticatedContext(context.Background())
+	if err != nil {
+		return fmt.Errorf("create authentication token: %w", err)
+	}
+
+	zone, err := dns01.FindZoneByFqdn(info.EffectiveFQDN)
+	if err != nil {
+		return fmt.Errorf("corenetworks: could not find zone for domain %q: %w", domain, err)
+	}
+
+	subDomain, err := dns01.ExtractSubDomain(info.EffectiveFQDN, zone)
+	if err != nil {
+		return fmt.Errorf("corenetworks: %w", err)
+	}
+
+	record := internal.Record{
+		Name: subDomain,
+		TTL:  d.config.TTL,
+		Type: "TXT",
+		Data: info.Value,
+	}
+
+	err = d.client.DeleteRecords(ctx, dns01.UnFqdn(zone), record)
+	if err != nil {
+		return fmt.Errorf("corenetworks: delete records: %w", err)
+	}
+
+	err = d.client.CommitRecords(ctx, dns01.UnFqdn(zone))
+	if err != nil {
+		return fmt.Errorf("corenetworks: commit records: %w", err)
+	}
+
+	return nil
+}

providers/dns/corenetworks/corenetworks.toml

@@ -0,0 +1,25 @@
+Name = "Core-Networks"
+Description = ''''''
+URL = "https://www.core-networks.de/"
+Code = "corenetworks"
+Since = "v4.20.0"
+
+Example = '''
+CORENETWORKS_LOGIN="xxxx" \
+CORENETWORKS_PASSWORD="yyyy" \
+lego --email myemail@example.com --dns corenetworks --domains my.example.org run
+'''
+
+[Configuration]
+  [Configuration.Credentials]
+    CORENETWORKS_LOGIN = "The username of the API account"
+    CORENETWORKS_PASSWORD = "The password"
+  [Configuration.Additional]
+    CORENETWORKS_POLLING_INTERVAL = "Time between DNS propagation check"
+    CORENETWORKS_PROPAGATION_TIMEOUT = "Maximum waiting time for DNS propagation"
+    CORENETWORKS_TTL = "The TTL of the TXT record used for the DNS challenge"
+    CORENETWORKS_HTTP_TIMEOUT = "API request timeout"
+    CORENETWORKS_SEQUENCE_INTERVAL = "Time between sequential requests"
+
+[Links]
+  API = "https://beta.api.core-networks.de/doc/"

providers/dns/corenetworks/corenetworks_test.go

@@ -0,0 +1,132 @@
+package corenetworks
+
+import (
+	"testing"
+
+	"github.com/go-acme/lego/v4/platform/tester"
+	"github.com/stretchr/testify/require"
+)
+
+const envDomain = envNamespace + "DOMAIN"
+
+var envTest = tester.NewEnvTest(EnvLogin, EnvPassword).WithDomain(envDomain)
+
+func TestNewDNSProvider(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		envVars  map[string]string
+		expected string
+	}{
+		{
+			desc: "success",
+			envVars: map[string]string{
+				EnvLogin:    "user",
+				EnvPassword: "secret",
+			},
+		},
+		{
+			desc: "missing login",
+			envVars: map[string]string{
+				EnvPassword: "secret",
+			},
+			expected: "corenetworks: some credentials information are missing: CORENETWORKS_LOGIN",
+		},
+		{
+			desc: "missing password",
+			envVars: map[string]string{
+				EnvLogin: "user",
+			},
+			expected: "corenetworks: some credentials information are missing: CORENETWORKS_PASSWORD",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			defer envTest.RestoreEnv()
+			envTest.ClearEnv()
+
+			envTest.Apply(test.envVars)
+
+			p, err := NewDNSProvider()
+
+			if test.expected == "" {
+				require.NoError(t, err)
+				require.NotNil(t, p)
+				require.NotNil(t, p.config)
+				require.NotNil(t, p.client)
+			} else {
+				require.EqualError(t, err, test.expected)
+			}
+		})
+	}
+}
+
+func TestNewDNSProviderConfig(t *testing.T) {
+	testCases := []struct {
+		desc     string
+		login    string
+		password string
+		expected string
+	}{
+		{
+			desc:     "success",
+			login:    "user",
+			password: "secret",
+		},
+		{
+			desc:     "missing login",
+			password: "secret",
+			expected: "corenetworks: credentials missing",
+		},
+		{
+			desc:     "missing password",
+			login:    "user",
+			expected: "corenetworks: credentials missing",
+		},
+	}
+
+	for _, test := range testCases {
+		t.Run(test.desc, func(t *testing.T) {
+			config := NewDefaultConfig()
+			config.Login = test.login
+			config.Password = test.password
+
+			p, err := NewDNSProviderConfig(config)
+
+			if test.expected == "" {
+				require.NoError(t, err)
+				require.NotNil(t, p)
+				require.NotNil(t, p.config)
+				require.NotNil(t, p.client)
+			} else {
+				require.EqualError(t, err, test.expected)
+			}
+		})
+	}
+}
+
+func TestLivePresent(t *testing.T) {
+	if !envTest.IsLiveTest() {
+		t.Skip("skipping live test")
+	}
+
+	envTest.RestoreEnv()
+	provider, err := NewDNSProvider()
+	require.NoError(t, err)
+
+	err = provider.Present(envTest.GetDomain(), "", "123d==")
+	require.NoError(t, err)
+}
+
+func TestLiveCleanUp(t *testing.T) {
+	if !envTest.IsLiveTest() {
+		t.Skip("skipping live test")
+	}
+
+	envTest.RestoreEnv()
+	provider, err := NewDNSProvider()
+	require.NoError(t, err)
+
+	err = provider.CleanUp(envTest.GetDomain(), "", "123d==")
+	require.NoError(t, err)
+}

providers/dns/corenetworks/internal/client.go

@@ -0,0 +1,214 @@
+package internal
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"time"
+
+	"github.com/go-acme/lego/v4/providers/dns/internal/errutils"
+)
+
+const defaultBaseURL = "https://beta.api.core-networks.de"
+
+// Client a Core-Networks client.
+type Client struct {
+	login    string
+	password string
+
+	baseURL    *url.URL
+	HTTPClient *http.Client
+}
+
+// NewClient creates a new Client.
+func NewClient(login, password string) *Client {
+	baseURL, _ := url.Parse(defaultBaseURL)
+
+	return &Client{
+		login:      login,
+		password:   password,
+		baseURL:    baseURL,
+		HTTPClient: &http.Client{Timeout: 5 * time.Second},
+	}
+}
+
+// ListZone gets a list of all DNS zones.
+// https://beta.api.core-networks.de/doc/#functon_dnszones
+func (c Client) ListZone(ctx context.Context) ([]Zone, error) {
+	endpoint := c.baseURL.JoinPath("dnszones")
+
+	req, err := newJSONRequest(ctx, http.MethodGet, endpoint, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	var zones []Zone
+	err = c.do(req, &zones)
+	if err != nil {
+		return nil, err
+	}
+
+	return zones, nil
+}
+
+// GetZoneDetails provides detailed information about a DNS zone.
+// https://beta.api.core-networks.de/doc/#functon_dnszones_details
+func (c Client) GetZoneDetails(ctx context.Context, zone string) (*ZoneDetails, error) {
+	endpoint := c.baseURL.JoinPath("dnszones", zone)
+
+	req, err := newJSONRequest(ctx, http.MethodGet, endpoint, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	var details ZoneDetails
+	err = c.do(req, &details)
+	if err != nil {
+		return nil, err
+	}
+
+	return &details, nil
+}
+
+// ListRecords gets a list of DNS records belonging to the zone.
+// https://beta.api.core-networks.de/doc/#functon_dnszones_records
+func (c Client) ListRecords(ctx context.Context, zone string) ([]Record, error) {
+	endpoint := c.baseURL.JoinPath("dnszones", zone, "records")
+
+	req, err := newJSONRequest(ctx, http.MethodGet, endpoint, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	var records []Record
+	err = c.do(req, &records)
+	if err != nil {
+		return nil, err
+	}
+
+	return records, nil
+}
+
+// AddRecord adds a record.
+// https://beta.api.core-networks.de/doc/#functon_dnszones_records_add
+func (c Client) AddRecord(ctx context.Context, zone string, record Record) error {
+	endpoint := c.baseURL.JoinPath("dnszones", zone, "records", "/")
+
+	if record.Name == "" {
+		record.Name = "@"
+	}
+
+	req, err := newJSONRequest(ctx, http.MethodPost, endpoint, record)
+	if err != nil {
+		return err
+	}
+
+	err = c.do(req, nil)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// DeleteRecords deletes all DNS records of a zone that match the DNS record passed.
+// https://beta.api.core-networks.de/doc/#functon_dnszones_records_delete
+func (c Client) DeleteRecords(ctx context.Context, zone string, record Record) error {
+	endpoint := c.baseURL.JoinPath("dnszones", zone, "records", "delete")
+
+	if record.Name == "" {
+		record.Name = "@"
+	}
+
+	req, err := newJSONRequest(ctx, http.MethodPost, endpoint, record)
+	if err != nil {
+		return err
+	}
+
+	err = c.do(req, nil)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// CommitRecords sends a commit to the zone.
+// https://beta.api.core-networks.de/doc/#functon_dnszones_commit
+func (c Client) CommitRecords(ctx context.Context, zone string) error {
+	endpoint := c.baseURL.JoinPath("dnszones", zone, "records", "commit")
+
+	req, err := newJSONRequest(ctx, http.MethodPost, endpoint, nil)
+	if err != nil {
+		return err
+	}
+
+	err = c.do(req, nil)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c Client) do(req *http.Request, result any) error {
+	at := getToken(req.Context())
+	if at != "" {
+		req.Header.Set(authorizationHeader, "Bearer "+at)
+	}
+
+	resp, errD := c.HTTPClient.Do(req)
+	if errD != nil {
+		return errutils.NewHTTPDoError(req, errD)
+	}
+
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode/100 != 2 {
+		return errutils.NewUnexpectedResponseStatusCodeError(req, resp)
+	}
+
+	if result == nil {
+		return nil
+	}
+
+	raw, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return errutils.NewReadResponseError(req, resp.StatusCode, err)
+	}
+
+	err = json.Unmarshal(raw, result)
+	if err != nil {
+		return errutils.NewUnmarshalError(req, resp.StatusCode, raw, err)
+	}
+
+	return nil
+}
+
+func newJSONRequest(ctx context.Context, method string, endpoint *url.URL, payload any) (*http.Request, error) {
+	buf := new(bytes.Buffer)
+
+	if payload != nil {
+		err := json.NewEncoder(buf).Encode(payload)
+		if err != nil {
+			return nil, fmt.Errorf("failed to create request JSON body: %w", err)
+		}
+	}
+
+	req, err := http.NewRequestWithContext(ctx, method, endpoint.String(), buf)
+	if err != nil {
+		return nil, fmt.Errorf("unable to create request: %w", err)
+	}
+
+	req.Header.Set("Accept", "application/json")
+
+	if payload != nil {
+		req.Header.Set("Content-Type", "application/json")
+	}
+
+	return req, nil
+}

providers/dns/corenetworks/internal/client_test.go

@@ -0,0 +1,214 @@
+package internal
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func setupTest(t *testing.T) (*Client, *http.ServeMux) {
+	t.Helper()
+
+	mux := http.NewServeMux()
+	server := httptest.NewServer(mux)
+	t.Cleanup(server.Close)
+
+	client := NewClient("user", "secret")
+	client.baseURL, _ = url.Parse(server.URL)
+	client.HTTPClient = server.Client()
+
+	return client, mux
+}
+
+func testHandler(method string, statusCode int, filename string) http.HandlerFunc {
+	return func(rw http.ResponseWriter, req *http.Request) {
+		if req.Method != method {
+			http.Error(rw, fmt.Sprintf(`unsupported method: %s`, req.Method), http.StatusMethodNotAllowed)
+			return
+		}
+
+		rw.WriteHeader(statusCode)
+
+		if statusCode == http.StatusNoContent {
+			return
+		}
+
+		file, err := os.Open(filepath.Join("fixtures", filename))
+		if err != nil {
+			http.Error(rw, fmt.Sprintf(`message %v`, err), http.StatusInternalServerError)
+			return
+		}
+
+		defer func() { _ = file.Close() }()
+
+		_, err = io.Copy(rw, file)
+		if err != nil {
+			http.Error(rw, fmt.Sprintf(`message %v`, err), http.StatusInternalServerError)
+			return
+		}
+	}
+}
+
+func testHandlerAuth(method string, statusCode int, filename string) http.HandlerFunc {
+	return func(rw http.ResponseWriter, req *http.Request) {
+		if req.Method != method {
+			http.Error(rw, fmt.Sprintf(`{"message":"unsupported method: %s"}`, req.Method), http.StatusMethodNotAllowed)
+			return
+		}
+
+		rw.WriteHeader(statusCode)
+
+		if statusCode == http.StatusNoContent {
+			return
+		}
+
+		file, err := os.Open(filepath.Join("fixtures", filename))
+		if err != nil {
+			http.Error(rw, fmt.Sprintf(`{"message":"%v"}`, err), http.StatusInternalServerError)
+			return
+		}
+
+		defer func() { _ = file.Close() }()
+
+		_, err = io.Copy(rw, file)
+		if err != nil {
+			http.Error(rw, fmt.Sprintf(`{"message":"%v"}`, err), http.StatusInternalServerError)
+			return
+		}
+	}
+}
+
+func TestClient_CreateAuthenticationToken(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("/auth/token", testHandlerAuth(http.MethodPost, http.StatusOK, "auth.json"))
+
+	ctx := context.Background()
+
+	token, err := client.CreateAuthenticationToken(ctx)
+	require.NoError(t, err)
+
+	expected := &Token{
+		Token:   "authsecret",
+		Expires: 123,
+	}
+	assert.Equal(t, expected, token)
+}
+
+func TestClient_ListZone(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("/dnszones/", testHandler(http.MethodGet, http.StatusOK, "ListZone.json"))
+
+	ctx := context.Background()
+
+	zones, err := client.ListZone(ctx)
+	require.NoError(t, err)
+
+	expected := []Zone{
+		{Name: "example.com", Type: "master"},
+		{Name: "example.net", Type: "slave"},
+	}
+
+	assert.Equal(t, expected, zones)
+}
+
+func TestClient_GetZoneDetails(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("/dnszones/example.com", testHandler(http.MethodGet, http.StatusOK, "GetZoneDetails.json"))
+
+	ctx := context.Background()
+
+	zone, err := client.GetZoneDetails(ctx, "example.com")
+	require.NoError(t, err)
+
+	expected := &ZoneDetails{
+		Active: true,
+		DNSSec: true,
+		Name:   "example.com",
+		Type:   "master",
+	}
+
+	assert.Equal(t, expected, zone)
+}
+
+func TestClient_ListRecords(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("/dnszones/example.com/records/", testHandler(http.MethodGet, http.StatusOK, "ListRecords.json"))
+
+	ctx := context.Background()
+
+	records, err := client.ListRecords(ctx, "example.com")
+	require.NoError(t, err)
+
+	expected := []Record{
+		{
+			Name: "@",
+			TTL:  86400,
+			Type: "NS",
+			Data: "ns2.core-networks.eu.",
+		},
+		{
+			Name: "@",
+			TTL:  86400,
+			Type: "NS",
+			Data: "ns3.core-networks.com.",
+		},
+		{
+			Name: "@",
+			TTL:  86400,
+			Type: "NS",
+			Data: "ns1.core-networks.de.",
+		},
+	}
+
+	assert.Equal(t, expected, records)
+}
+
+func TestClient_AddRecord(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("/dnszones/example.com/records/", testHandler(http.MethodPost, http.StatusNoContent, ""))
+
+	ctx := context.Background()
+
+	record := Record{Name: "www", TTL: 3600, Type: "A", Data: "127.0.0.1"}
+
+	err := client.AddRecord(ctx, "example.com", record)
+	require.NoError(t, err)
+}
+
+func TestClient_DeleteRecords(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("/dnszones/example.com/records/delete", testHandler(http.MethodPost, http.StatusNoContent, ""))
+
+	ctx := context.Background()
+
+	record := Record{Name: "www", Type: "A", Data: "127.0.0.1"}
+
+	err := client.DeleteRecords(ctx, "example.com", record)
+	require.NoError(t, err)
+}
+
+func TestClient_CommitRecords(t *testing.T) {
+	client, mux := setupTest(t)
+
+	mux.HandleFunc("/dnszones/example.com/records/commit", testHandler(http.MethodPost, http.StatusNoContent, ""))
+
+	ctx := context.Background()
+
+	err := client.CommitRecords(ctx, "example.com")
+	require.NoError(t, err)
+}

providers/dns/corenetworks/internal/fixtures/GetZoneDetails.json

@@ -0,0 +1,8 @@
+{
+  "active": true,
+  "dnssec": true,
+  "master": null,
+  "name": "example.com",
+  "tsig": null,
+  "type": "master"
+}

providers/dns/corenetworks/internal/fixtures/ListRecords.json

@@ -0,0 +1,20 @@
+[
+  {
+    "name": "@",
+    "ttl": 86400,
+    "type": "NS",
+    "data": "ns2.core-networks.eu."
+  },
+  {
+    "name": "@",
+    "ttl": 86400,
+    "type": "NS",
+    "data": "ns3.core-networks.com."
+  },
+  {
+    "name": "@",
+    "ttl": 86400,
+    "type": "NS",
+    "data": "ns1.core-networks.de."
+  }
+]

providers/dns/corenetworks/internal/fixtures/ListZone.json

@@ -0,0 +1,10 @@
+[
+  {
+    "name": "example.com",
+    "type": "master"
+  },
+  {
+    "name": "example.net",
+    "type": "slave"
+  }
+]

providers/dns/corenetworks/internal/fixtures/auth.json

@@ -0,0 +1,4 @@
+{
+  "token": "authsecret",
+  "expires": 123
+}

providers/dns/corenetworks/internal/identity.go

@@ -0,0 +1,49 @@
+package internal
+
+import (
+	"context"
+	"net/http"
+)
+
+const authorizationHeader = "Authorization"
+
+type token string
+
+const tokenKey token = "token"
+
+// CreateAuthenticationToken gets an authentication token.
+// https://beta.api.core-networks.de/doc/#functon_auth_token
+func (c Client) CreateAuthenticationToken(ctx context.Context) (*Token, error) {
+	endpoint := c.baseURL.JoinPath("auth", "token")
+
+	req, err := newJSONRequest(ctx, http.MethodPost, endpoint, Auth{Login: c.login, Password: c.password})
+	if err != nil {
+		return nil, err
+	}
+
+	var token Token
+	err = c.do(req, &token)
+	if err != nil {
+		return nil, err
+	}
+
+	return &token, nil
+}
+
+func (c Client) CreateAuthenticatedContext(ctx context.Context) (context.Context, error) {
+	tok, err := c.CreateAuthenticationToken(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return context.WithValue(ctx, tokenKey, tok.Token), nil
+}
+
+func getToken(ctx context.Context) string {
+	tok, ok := ctx.Value(tokenKey).(string)
+	if !ok {
+		return ""
+	}
+
+	return tok
+}

providers/dns/corenetworks/internal/types.go

@@ -0,0 +1,37 @@
+package internal
+
+type Auth struct {
+	Login    string `json:"login,omitempty"`
+	Password string `json:"password,omitempty"`
+}
+
+type Token struct {
+	Token   string `json:"token,omitempty"`
+	Expires int    `json:"expires,omitempty"`
+}
+
+type Zone struct {
+	Name string `json:"name,omitempty"`
+	Type string `json:"type,omitempty"`
+}
+
+type ZoneDetails struct {
+	Active bool     `json:"active,omitempty"`
+	DNSSec bool     `json:"dnssec,omitempty"`
+	Master string   `json:"master,omitempty"`
+	Name   string   `json:"name,omitempty"`
+	TSIG   *TSIGKey `json:"tsig,omitempty"`
+	Type   string   `json:"type,omitempty"`
+}
+
+type TSIGKey struct {
+	Algo   string `json:"algo,omitempty"`
+	Secret string `json:"secret,omitempty"`
+}
+
+type Record struct {
+	Name string `json:"name,omitempty"`
+	TTL  int    `json:"ttl,omitempty"`
+	Type string `json:"type,omitempty"`
+	Data string `json:"data,omitempty"`
+}

providers/dns/zz_gen_dns_providers.go

@@ -28,6 +28,7 @@ import (
 	"github.com/go-acme/lego/v4/providers/dns/cloudxns"
 	"github.com/go-acme/lego/v4/providers/dns/conoha"
 	"github.com/go-acme/lego/v4/providers/dns/constellix"
+	"github.com/go-acme/lego/v4/providers/dns/corenetworks"
 	"github.com/go-acme/lego/v4/providers/dns/cpanel"
 	"github.com/go-acme/lego/v4/providers/dns/derak"
 	"github.com/go-acme/lego/v4/providers/dns/desec"
@@ -194,6 +195,8 @@ func NewDNSChallengeProviderByName(name string) (challenge.Provider, error) {
 		return conoha.NewDNSProvider()
 	case "constellix":
 		return constellix.NewDNSProvider()
+	case "corenetworks":
+		return corenetworks.NewDNSProvider()
 	case "cpanel":
 		return cpanel.NewDNSProvider()
 	case "derak":