diff --git a/docs/maintainers/vcpkg_from_github.md b/docs/maintainers/vcpkg_from_github.md
index 8f9731629..18ab5b976 100644
--- a/docs/maintainers/vcpkg_from_github.md
+++ b/docs/maintainers/vcpkg_from_github.md
@@ -11,6 +11,8 @@ vcpkg_from_github(
     [SHA512 <45d0d7f8cc350...>]
     [HEAD_REF <master>]
     [PATCHES <patch1.patch> <patch2.patch>...]
+    [GITHUB_HOST <https://github.com>]
+    [AUTHORIZATION_TOKEN <${SECRET_FROM_FILE}>]
 )
 ```
 
@@ -45,6 +47,14 @@ A list of patches to be applied to the extracted sources.
 
 Relative paths are based on the port directory.
 
+### GITHUB_HOST
+A replacement host for enterprise GitHub instances.
+
+This field should contain the scheme, host, and port of the desired URL without a trailing slash.
+
+### AUTHORIZATION_TOKEN
+A token to be passed via the Authorization HTTP header as "token ${AUTHORIZATION_TOKEN}".
+
 ## Notes:
 At least one of `REF` and `HEAD_REF` must be specified, however it is preferable for both to be present.
 
diff --git a/scripts/cmake/vcpkg_from_github.cmake b/scripts/cmake/vcpkg_from_github.cmake
index 5dbac973b..35e4bda87 100644
--- a/scripts/cmake/vcpkg_from_github.cmake
+++ b/scripts/cmake/vcpkg_from_github.cmake
@@ -11,6 +11,8 @@
 ##     [SHA512 <45d0d7f8cc350...>]
 ##     [HEAD_REF <master>]
 ##     [PATCHES <patch1.patch> <patch2.patch>...]
+##     [GITHUB_HOST <https://github.com>]
+##     [AUTHORIZATION_TOKEN <${SECRET_FROM_FILE}>]
 ## )
 ## ```
 ##
@@ -45,6 +47,14 @@
 ##
 ## Relative paths are based on the port directory.
 ##
+## ### GITHUB_HOST
+## A replacement host for enterprise GitHub instances.
+##
+## This field should contain the scheme, host, and port of the desired URL without a trailing slash.
+##
+## ### AUTHORIZATION_TOKEN
+## A token to be passed via the Authorization HTTP header as "token ${AUTHORIZATION_TOKEN}".
+##
 ## ## Notes:
 ## At least one of `REF` and `HEAD_REF` must be specified, however it is preferable for both to be present.
 ##
@@ -56,7 +66,7 @@
 ## * [ms-gsl](https://github.com/Microsoft/vcpkg/blob/master/ports/ms-gsl/portfile.cmake)
 ## * [beast](https://github.com/Microsoft/vcpkg/blob/master/ports/beast/portfile.cmake)
 function(vcpkg_from_github)
-    set(oneValueArgs OUT_SOURCE_PATH REPO REF SHA512 HEAD_REF GITHUB_URL TOKEN)
+    set(oneValueArgs OUT_SOURCE_PATH REPO REF SHA512 HEAD_REF GITHUB_HOST AUTHORIZATION_TOKEN)
     set(multipleValuesArgs PATCHES)
     cmake_parse_arguments(_vdud "" "${oneValueArgs}" "${multipleValuesArgs}" ${ARGN})
 
@@ -76,16 +86,18 @@ function(vcpkg_from_github)
         message(FATAL_ERROR "At least one of REF and HEAD_REF must be specified.")
     endif()
 
-    if(NOT DEFINED _vdud_GITHUB_URL)
-        set(GITHUB_URL https://github.com)
+    if(NOT DEFINED _vdud_GITHUB_HOST)
+        set(GITHUB_HOST https://github.com)
         set(GITHUB_API_URL https://api.github.com)
     else()
-        set(GITHUB_URL ${_vdud_GITHUB_URL})
-        set(GITHUB_API_URL ${_vdud_GITHUB_URL}/api/v3)
+        set(GITHUB_HOST ${_vdud_GITHUB_HOST})
+        set(GITHUB_API_URL ${_vdud_GITHUB_HOST}/api/v3)
     endif()
 
-    if(DEFINED _vdud_TOKEN)
-        set(HEADERS "HEADERS" "Authorization: token ${_vdud_TOKEN}")
+    if(DEFINED _vdud_AUTHORIZATION_TOKEN)
+        set(HEADERS "HEADERS" "Authorization: token ${_vdud_AUTHORIZATION_TOKEN}")
+    else()
+        set(HEADERS)
     endif()
 
     string(REGEX REPLACE ".*/" "" REPO_NAME ${_vdud_REPO})
@@ -118,7 +130,7 @@ function(vcpkg_from_github)
         string(REPLACE "/" "-" SANITIZED_REF "${_vdud_REF}")
 
         vcpkg_download_distfile(ARCHIVE
-            URLS "${GITHUB_URL}/${ORG_NAME}/${REPO_NAME}/archive/${_vdud_REF}.tar.gz"
+            URLS "${GITHUB_HOST}/${ORG_NAME}/${REPO_NAME}/archive/${_vdud_REF}.tar.gz"
             SHA512 "${_vdud_SHA512}"
             FILENAME "${ORG_NAME}-${REPO_NAME}-${SANITIZED_REF}.tar.gz"
             ${HEADERS}
@@ -136,7 +148,7 @@ function(vcpkg_from_github)
     endif()
 
     # The following is for --head scenarios
-    set(URL "${GITHUB_URL}/${ORG_NAME}/${REPO_NAME}/archive/${_vdud_HEAD_REF}.tar.gz")
+    set(URL "${GITHUB_HOST}/${ORG_NAME}/${REPO_NAME}/archive/${_vdud_HEAD_REF}.tar.gz")
     string(REPLACE "/" "-" SANITIZED_HEAD_REF "${_vdud_HEAD_REF}")
     set(downloaded_file_name "${ORG_NAME}-${REPO_NAME}-${SANITIZED_HEAD_REF}.tar.gz")
     set(downloaded_file_path "${DOWNLOADS}/${downloaded_file_name}")