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cnf Using configuration from /etc/ssl/puppyCA/opensslcnf Enter pass phrase for /etc/ssl/puppyCA/private/cakeypem: CRLs are generally valid for one month only If you want to create one for a longer period, use the option -crldays to specify the number of days for which you want the CRL to be valid Once you have your CRL file, you can revoke a certificate using the command in Listing 3-8 Listing 3-8 Revoking a Certificate puppy# openssl ca -revoke puppyyourdomaincomcertpem \ -config /etc/ssl/puppyCA/opensslcnf Using configuration from /etc/ssl/puppyCA/opensslcnf Enter pass phrase for /etc/ssl/puppyCA/private/cakeypem: Revoking Certificate 01 Data Base Updated If you have specified a challenge password in your certificate when you created it, you will be prompted for that password before you are allowed to revoke the certificate If you do not have the password, you cannot revoke the certificate.

It is now possible to map EF model properties to individual AtomPub elements. In our film example you could map a director's name to AtomPub s author element. It is also possible to create custom classes and control how these are formatted in the output. For more information on these features please refer to http://blogs.msdn.com/phaniraj/archive/ 2009/03/21/ado-net-data-services-friendly-feeds-mapping-clr-types.aspx.

After you have revoked a certificate, you should re-create the CRL from Listing 3-7 Now if you attempt to use the certificate you have just revoked, the connection will fail and you will get an error message indicating the certificate is revoked..

Figure 5-11 Text with separators such as tabs, commas, or spaces can easily be converted to a table.

s Caution If you have something (an e-mail, for example) encrypted with that certificate and you revoke

You also need to let your users and applications know that a certificate has been revoked. In the openssl.cnf file, it references the location of your CRL files and the default directory for them. By default this is the crl directory underneath the root directory of your CA and the file crl.pem. Place your CRL in this directory. All users should have read permissions to this area, but no users should have write permissions. You also need to create hashes of your CRLs as you have with your CA certificates. You can use the command in Listing 3-9 to do this replacing yourcrl.pem with the name of your CRL file.

The WDS team has made a number of other improvements: WDS 1.5 supports two-way data binding (DataServiceCollection), which is great for WPF/Silverlight scenarios. For more information, please see 15 and this blog entry: http://blogs.msdn.com/astoriateam/archive/2009/09/17/introduction-to-data-binding-insilverlight-3-with-ctp2.aspx Improved support for streaming large sets of binary data

Listing 3-9. Creating a Hash of Your CRL File puppy# ln -s yourcrl.pem `openssl crl -hash -noout -in yourcrl.pem`.r0 Store your CRL hash in the crl directory also.

The openssl command also allows you to test both client- and server-style connections using the s_client and s_server functions. The s_client function allows you to test connecting to a remote SSL-enabled service or daemon. This is useful for testing connections and diagnosing problems. Listing 3-10 shows an example of testing an MTA running SSL. Listing 3-10. Testing an MTA Using openssl s_client puppy$ openssl s_client -connect puppy.yourdomain.com:25 -starttls smtp The openssl s_client command in Listing 3-10 will connect to port 25 and try to start TLS using the -starttls option. The smtp parameter tells OpenSSL that the target system being connected to is a SMTP server. At this stage the only other option available to use with the -starttls command is pop3, which you can use to connect to a POP3 server and do similar tests. The command will return the details of the connection, any certificates being used and attempt to ensure all certificates and CA root certificates are verified. You can also connect to a non-MTA client such as an IMAP server. Enter the following: puppy$ openssl s_client -connect puppy.yourdomain.com:993 You can provide some other options to the openssl s_client function. Table 3-2 shows the most useful of these options. Table 3-2. openssl s_client Options

-cert certname -key keyfile -verify depth -reconnect -showcerts -state -debug -msg -ssl2, -ssl3, -tls1, -no_ssl2, -no_ssl3, -no_tls1

Scott Guthrie spoke to RedDevNews.com regarding this (before the name changes):