Revision as of 17:51, 19 August 2011

Introduction

Secure internet connections are created using the secure port (443) of the Apache2 web server. Below are instructions for setting up the Apache2 web server for secure internet connections by DEFAULT.

Defaults

The default location for certficates is: /etc/ssl/certs. This is where we will put the certificates. Other services should point to this folder for the certificates.

Step 1. Create the SSL certificates

Become root as follows:

sudo -i

Make the scripts folder:

mkdir /root/scripts

Open the script file:

nano /root/scripts/make-new-certs

Then copy and paste the following into the nano editor:

#! /bin/bash

# Check for SSL binaries
test -x /usr/bin/openssl || apt-get install openssl

# Setup certificate variables
HOST="bib.sun.ac.za"
EMAIL="wklap@sun.ac.za"

# Set certs path
CERTS="/etc/ssl/certs/"

# Define the config file to be used to create certs
# Fill in your own values for "ST", "L", "O" and "OU"
CONF="\n
[ req ] \n
default_bits = 1024 \n
encrypt_key = yes \n
distinguished_name = req_dn \n
x509_extensions = cert_type \n
prompt = no \n
[ req_dn ] \n
C=ZA \n
ST=WP \n
L=Stellenbosch \n
O=Universiteit Stellenbosch \n
OU=JS Gericke Library \n
CN=$HOST \n
emailAddress=$EMAIL \n
[ cert_type ] \n
nsCertType = server \n
"

echo -e $CONF > $HOST.cnf
sleep 3

# Build path for certificate creation
CPATH="$CERTS$HOST"

# Create a large random seed for the new key
dd if=/dev/urandom of=$CPATH.rand count=1 2>/dev/null

# Generate the new key and certificate
openssl req -new -x509 -days 365 -nodes -config $HOST.cnf -out $CPATH.crt -keyout $CPATH.key || cleanup

# Create a large random seed for the signing
openssl gendh -rand $CPATH.rand 1024 > $CPATH.gendh || cleanup

# Create a new certficate request
openssl req -new -key $CPATH.key -config $HOST.cnf > $CPATH.csr

# Create a "pem" file suitable for Apache2
cat $CPATH.key $CPATH.crt > $CPATH.pem

# Clean up
rm -f $HOST.rand

Change the following to suit your organisation:

$HOST
$EMAIL
C=
ST=
L=
O=
OU=

Save the file and exit

Now we make the script executeable as follows:

chmod 0755 /root/scripts/make-new-certs

Then we execute the script as follows:

/root/scripts/make-new-certs

After the script is complete we make the versign cert as follows:

nano /etc/ssl/certs/verisign-ca.crt

Copy and paste the following to the nano editor:

Save the file and exit.

Step 2. Setup Tomcat to use the SSL certs

You must complete step 1 above for this to work.

Change to cert folder as follows:

cd /etc/ssl/certs

Type the following to create the Java security cert.

/usr/bin/openssl pkcs12 -export -out %hostname%.pkcs12 -in %hostname%.crt -inkey %hostname%.key

Replace %hostname% with the hostname of the server. You will be asked for a keystore password. Enter it and keep a careful record of it somewhere.

Now Tomcat6, has to be told where to find this security key file. Edit the /etc/tomcat6/server.xml file as follows:

nano /etc/tomcat6/server.xml

Find the port 443 connector section and add the following keystore settings:

    <Connector port="443" protocol="HTTP/1.1" SSLEnabled="true"
               maxThreads="150" scheme="https" secure="true"
               clientAuth="false" sslProtocol="TLS" 
	       keystoreFile="/etc/ssl/certs/%hostname%.pkcs12" 
	       keystoreType="PKCS12"
               keystorePass="%SecretPassword%" />

Replace %SecretPassword% with the password you used when creating the keystore above. And add the %hostname% used when creating the keystore above.

Step 3. Apply for a signed certificate

Send the file ending with .csr created above in the /etc/ssl/certs folder to a recognised certificate authority for signing.

The following can supply signed certificates for an annual fee.

Try to shop around for the best prices.

After payment they will send you the signed certificate which you copy to the /etc/ssl/certs folder.

Command Line Help

Go to: http://www.ubuntu.sun.ac.za/wiki/index.php/SelfHelp for more help about the command line programs used in this procedure.

References

Back to IR Help

Difference between revisions of "SUNScholar/Secure Internet Connections"

Revision as of 17:51, 19 August 2011

Contents

Introduction

Defaults

Step 1. Create the SSL certificates

Step 2. Setup Tomcat to use the SSL certs

Step 3. Apply for a signed certificate

Command Line Help

References

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@@ Line 139: / Line 139: @@
 Type the following to create the Java security cert.
   /usr/bin/openssl pkcs12 -export -out %hostname%.pkcs12 -in %hostname%.crt -inkey %hostname%.key
-Replace %hostname% with the hostname of the server. You will be asked for a keystore password. Enter it and keep a careful recoerd of it somewhere.
+Replace %hostname% with the hostname of the server. You will be asked for a keystore password. Enter it and keep a careful record of it somewhere.
 Now Tomcat6, has to be told where to find this security key file. Edit the '''/etc/tomcat6/server.xml''' file as follows: