Uncomment this line from config.tcl.

#ns_param   nsopenssl       ${bindir}/nsopenssl.so

Prepare a certificate directory for the service.

[service0 etc]$ mkdir /var/lib/aolserver/service0/etc/certs
[service0 etc]$ chmod 700 /var/lib/aolserver/service0/etc/certs
[service0 etc]$ 
mkdir /var/lib/aolserver/service0/etc/certs
chmod 700 /var/lib/aolserver/service0/etc/certs

It takes two files to support an SSL connection. The certificate is the public half of the key pair - the server sends the certificate to browser requesting ssl. The key is the private half of the key pair. In addition, the certificate must be signed by Certificate Authority or browsers will protest. Each web browser ships with a built-in list of acceptable Certificate Authorities (CAs) and their keys. Only a site certificate signed by a known and approved CA will work smoothly. Any other certificate will cause browsers to produce some messages or block the site. Unfortunately, getting a site certificate signed by a CA costs money. In this section, we'll generate an unsigned certificate which will work in most browsers, albeit with pop-up messages.

Use an OpenSSL perl script to generate a certificate and key.

[service0 service0]$ cd /var/lib/aolserver/service0/etc/certs
[service0 certs]$ perl /usr/share/ssl/misc/CA -newcert
Using configuration from /usr/share/ssl/openssl.cnf
Generating a 1024 bit RSA private key
...++++++
.......++++++
writing new private key to 'newreq.pem'
Enter PEM pass phrase:

Enter a pass phrase for the CA certificate. Then, answer the rest of the questions. At the end you should see this:

Certificate (and private key) is in newreq.pem
[service0 certs]$

newreq.pem contains our certificate and private key. The key is protected by a passphrase, which means that we'll have to enter the pass phrase each time the server starts. This is impractical and unnecessary, so we create an unprotected version of the key. Security implication: if anyone gets access to the file keyfile.pem, they effectively own the key as much as you do. Mitigation: don't use this key/cert combo for anything besides providing ssl for the web site.

[root misc]# openssl rsa -in newreq.pem -out keyfile.pem
read RSA key
Enter PEM pass phrase:
writing RSA key
[service0 certs]$ 

To create the certificate file, we take the combined file, copy it, and strip out the key.

[service0 certs]$ cp newreq.pem certfile.pem
[root misc]# emacs certfile.pem

Strip out the section that looks like

-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,F3EDE7CA1B404997
S/Sd2MYA0JVmQuIt5bYowXR1KYKDka1d3DUgtoVTiFepIRUrMkZlCli08mWVjE6T
(11 lines omitted)
1MU24SHLgdTfDJprEdxZOnxajnbxL420xNVc5RRXlJA8Xxhx/HBKTw==
-----END RSA PRIVATE KEY-----