openSUSE 12.1 YaST LDAP Server dialogue
These are the settings to be used when creating your own self signed certificates as follows.
First we need to generate the CA:
root# mkdir myCA
Move into that directory:
root# cd myCA
Now generate the CA:
root# /usr/share/ssl/misc/CA.pl -newca
CA certificate filename (or enter to create)
Making CA certificate ...
Generating a 1024 bit RSA private key
.......................++++++
.............................++++++
writing new private key to './demoCA/private/cakey.pem'
Enter PEM pass phrase:
Verifying - Enter PEM pass phrase:
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:AU
State or Province Name (full name) [Some-State]:NSW
Locality Name (eg, city) []:Sydney
Organization Name (eg, company) [Internet Widgits Pty Ltd]:Abmas
Organizational Unit Name (eg, section) []:IT
Common Name (eg, YOUR name) []:ldap.abmas.biz
Email Address []:support@abmas.biz
There are some things to note here.
You MUST remember the password, as we will need it to sign the server certificate..
The Common Name (CN), MUST be the fully qualified domain name (FQDN) of your ldap server.
Generating the Server Certificate
Now we need to generate the server certificate:
root# openssl req -new -nodes -keyout newreq.pem -out newreq.pem
Generating a 1024 bit RSA private key
.............++++++
........................................................++++++
writing new private key to 'newreq.pem'
-----
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:AU
State or Province Name (full name) [Some-State]:NSW
Locality Name (eg, city) []:Sydney
Organization Name (eg, company) [Internet Widgits Pty Ltd]:Abmas
Organizational Unit Name (eg, section) []:IT
Common Name (eg, YOUR name) []:ldap.abmas.biz
Email Address []:support@abmas.biz
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
Again, there are some things to note here.
You should NOT enter a password.
The Common Name (CN), MUST be the fully qualified domain name (FQDN) of your ldap server.
Now we sign the certificate with the new CA:
root# /usr/share/ssl/misc/CA.pl -sign
Using configuration from /etc/ssl/openssl.cnf
Enter pass phrase for ./demoCA/private/cakey.pem:
Check that the request matches the signature
Signature ok
Certificate Details:
Serial Number: 1 (0x1)
Validity
Not Before: Mar 6 18:22:26 2005 EDT
Not After : Mar 6 18:22:26 2006 EDT
Subject:
countryName = AU
stateOrProvinceName = NSW
localityName = Sydney
organizationName = Abmas
organizationalUnitName = IT
commonName = ldap.abmas.biz
emailAddress = support@abmas.biz
X509v3 extensions:
X509v3 Basic Constraints:
CA:FALSE
Netscape Comment:
OpenSSL Generated Certificate
X509v3 Subject Key Identifier:
F7:84:87:25:C4:E8:46:6D:0F:47:27:91:F0:16:E0:86:6A:EE:A3:CE
X509v3 Authority Key Identifier:
keyid:27:44:63:3A:CB:09:DC:B1:FF:32:CC:93:23:A4:F1:B4:D5:F0:7E:CC
DirName:/C=AU/ST=NSW/L=Sydney/O=Abmas/OU=IT/
CN=ldap.abmas.biz/emailAddress=support@abmas.biz
serial:00
Certificate is to be certified until Mar 6 18:22:26 2006 EDT (365 days)
Sign the certificate? [y/n]:y
1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Data Base Updated
Signed certificate is in newcert.pem
That completes the server certificate generation.
Installing the Certificates
Now we need to copy the certificates to the right configuration directories, rename them at the same time (for convenience), change the ownership and finally the permissions:
root# cp demoCA/cacert.pem /etc/openldap/
root# cp newcert.pem /etc/openldap/servercrt.pem
root# cp newreq.pem /etc/openldap/serverkey.pem
root# chown ldap.ldap /etc/openldap/*.pem
root# chmod 640 /etc/openldap/cacert.pem;
root# chmod 600 /etc/openldap/serverkey.pem
Now we just need to add these locations to the openSUSE Yast window:
TLSCertificateFile /etc/openldap/servercrt.pem
TLSCertificateKeyFile /etc/openldap/serverkey.pem
TLSCACertificateFile /etc/openldap/cacert.pem
Here is the declaration and ldap.conf: ldap.conf
TLS_CACERT /etc/openldap/cacert.pem
