diff -pruN ruby-1.8.6-p111.orig/ext/openssl/lib/net/ftptls.rb ruby-1.8.6-p111/ext/openssl/lib/net/ftptls.rb
--- ruby-1.8.6-p111.orig/ext/openssl/lib/net/ftptls.rb	2007-02-13 08:01:19.000000000 +0900
+++ ruby-1.8.6-p111/ext/openssl/lib/net/ftptls.rb	2007-10-29 21:10:24.000000000 +0900
@@ -29,13 +29,23 @@ require 'net/ftp'
 
 module Net
   class FTPTLS < FTP
+    def connect(host, port=FTP_PORT)
+       @hostname = host
+       super
+    end
+
     def login(user = "anonymous", passwd = nil, acct = nil)
+       store = OpenSSL::X509::Store.new
+       store.set_default_paths
        ctx = OpenSSL::SSL::SSLContext.new('SSLv23')
+       ctx.cert_store = store
+       ctx.verify_mode = OpenSSL::SSL::VERIFY_PEER
        ctx.key = nil
        ctx.cert = nil
        voidcmd("AUTH TLS")
        @sock = OpenSSL::SSL::SSLSocket.new(@sock, ctx)
        @sock.connect
+       @sock.post_connection_check(@hostname)
        super(user, passwd, acct)
        voidcmd("PBSZ 0")
     end
diff -pruN ruby-1.8.6-p111.orig/ext/openssl/lib/net/telnets.rb ruby-1.8.6-p111/ext/openssl/lib/net/telnets.rb
--- ruby-1.8.6-p111.orig/ext/openssl/lib/net/telnets.rb	2007-02-13 08:01:19.000000000 +0900
+++ ruby-1.8.6-p111/ext/openssl/lib/net/telnets.rb	2007-10-29 21:13:03.000000000 +0900
@@ -134,6 +134,9 @@ module Net
             @sock.verify_callback = @options['VerifyCallback']
             @sock.verify_depth    = @options['VerifyDepth']
             @sock.connect
+            if @options['VerifyMode'] != OpenSSL::SSL::VERIFY_NONE
+              @sock.post_connection_check(@options['Host'])
+            end
             @ssl = true
           end
           ''
diff -pruN ruby-1.8.6-p111.orig/lib/net/http.rb ruby-1.8.6-p111/lib/net/http.rb
--- ruby-1.8.6-p111.orig/lib/net/http.rb	2007-09-24 17:12:24.000000000 +0900
+++ ruby-1.8.6-p111/lib/net/http.rb	2007-10-29 21:12:12.000000000 +0900
@@ -470,7 +470,6 @@ module Net   #:nodoc:
       @debug_output = nil
       @use_ssl = false
       @ssl_context = nil
-      @enable_post_connection_check = false
     end
 
     def inspect
@@ -527,9 +526,6 @@ module Net   #:nodoc:
       false   # redefined in net/https
     end
 
-    # specify enabling SSL server certificate and hostname checking.
-    attr_accessor :enable_post_connection_check
-
     # Opens TCP connection and HTTP session.
     # 
     # When this method is called with block, gives a HTTP object
@@ -589,12 +585,7 @@ module Net   #:nodoc:
         end
         s.connect
         if @ssl_context.verify_mode != OpenSSL::SSL::VERIFY_NONE
-          begin
-            s.post_connection_check(@address)
-          rescue OpenSSL::SSL::SSLError => ex
-            raise ex if @enable_post_connection_check
-            warn ex.message
-          end
+          s.post_connection_check(@address)
         end
       end
       on_connect
diff -pruN ruby-1.8.6-p111.orig/lib/net/imap.rb ruby-1.8.6-p111/lib/net/imap.rb
--- ruby-1.8.6-p111.orig/lib/net/imap.rb	2007-08-22 08:28:09.000000000 +0900
+++ ruby-1.8.6-p111/lib/net/imap.rb	2007-10-29 21:14:38.000000000 +0900
@@ -900,6 +900,7 @@ module Net
         end
         @sock = SSLSocket.new(@sock, context)
         @sock.connect   # start ssl session.
+        @sock.post_connection_check(@host) if verify
       else
         @usessl = false
       end
diff -pruN ruby-1.8.6-p111.orig/lib/open-uri.rb ruby-1.8.6-p111/lib/open-uri.rb
--- ruby-1.8.6-p111.orig/lib/open-uri.rb	2007-09-24 17:12:24.000000000 +0900
+++ ruby-1.8.6-p111/lib/open-uri.rb	2007-10-29 21:16:03.000000000 +0900
@@ -229,7 +229,6 @@ module OpenURI
     if target.class == URI::HTTPS
       require 'net/https'
       http.use_ssl = true
-      http.enable_post_connection_check = true
       http.verify_mode = OpenSSL::SSL::VERIFY_PEER
       store = OpenSSL::X509::Store.new
       store.set_default_paths