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+---
+c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_PROXY_SSL_VERIFYHOST
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_CAINFO (3)
+  - CURLOPT_PROXY_CAINFO (3)
+  - CURLOPT_PROXY_SSL_VERIFYPEER (3)
+  - CURLOPT_SSL_VERIFYPEER (3)
+---
+
+# NAME
+
+CURLOPT_PROXY_SSL_VERIFYHOST - verify the proxy certificate's name against host
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSL_VERIFYHOST,
+                          long verify);
+~~~
+
+# DESCRIPTION
+
+Pass a long set to 2L as asking curl to *verify* in the HTTPS proxy's
+certificate name fields against the proxy name.
+
+This option determines whether libcurl verifies that the proxy cert contains
+the correct name for the name it is known as.
+
+When CURLOPT_PROXY_SSL_VERIFYHOST(3) is 2, the proxy certificate must
+indicate that the server is the proxy to which you meant to connect to, or the
+connection fails.
+
+Curl considers the proxy the intended one when the Common Name field or a
+Subject Alternate Name field in the certificate matches the hostname in the
+proxy string which you told curl to use.
+
+If *verify* value is set to 1:
+
+In 7.28.0 and earlier: treated as a debug option of some sorts, not supported
+anymore due to frequently leading to programmer mistakes.
+
+From 7.28.1 to 7.65.3: setting it to 1 made curl_easy_setopt(3) return
+an error and leaving the flag untouched.
+
+From 7.66.0: treats 1 and 2 the same.
+
+When the *verify* value is 0L, the connection succeeds regardless of the
+names used in the certificate. Use that ability with caution!
+
+See also CURLOPT_PROXY_SSL_VERIFYPEER(3) to verify the digital signature
+of the proxy certificate.
+
+# DEFAULT
+
+2
+
+# PROTOCOLS
+
+All protocols when used over an HTTPS proxy.
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+
+    /* Set the default value: strict name check please */
+    curl_easy_setopt(curl, CURLOPT_PROXY_SSL_VERIFYHOST, 2L);
+
+    curl_easy_perform(curl);
+  }
+}
+~~~
+
+# AVAILABILITY
+
+Added in 7.52.0.
+
+If built TLS enabled.
+
+# RETURN VALUE
+
+Returns CURLE_OK if TLS is supported, and CURLE_UNKNOWN_OPTION if not.
+
+If 1 is set as argument, *CURLE_BAD_FUNCTION_ARGUMENT* is returned.