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Cosign instructions for Leopard:
(Dave Pugh, Feb 2008)
==============================================================================

Changes from Tiger that I got hung up on:
------------------------------------------------------
Web directory changed from /etc/httpd to /etc/apache2
Had to modify a Makefile in the Cosign distribution to build it (details below)

Full procedure I used (in chicken-scratch format):
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In Server Admin, select the hostname of the server
Click the Certificates tab
Click the + button
  Common Name: lsa-mac-dev1.lsait.lsa.umich.edu
  Org: University of Michigan
  OU: LSA IT
  City: Ann Arbor
  State: Michigan
  (leave the others as defaults)
Click Save

Open a web-browser to here:
  https://webservices.itcs.umich.edu/
and choose the Request an SSL certificate option (you'll be filling it out momentarily)
Back in Server Admin:
Select the cert you just created
Under the gearwheel menu, choose Generate CSR
Drag the certificate icon to the webpage's CSR box
Fill out the form, being sure to choose umwebCA as the signer


In Server Admin, start the Web Service
Click the Sites button, and select the default site (*)
- On the Options tab, allow 'CGI Execution'
- On the Logging tab, set both the access and error logs to archive every 7 days
Click Save

cd /etc/apache2
sudo mkdir cosign
cd cosign
sudo vi site_conf

#### BEGINNING OF FILE
CosignHostname weblogin.umich.edu
CosignRedirect https://weblogin.umich.edu/
CosignPostErrorRedirect https://weblogin.umich.edu/post_error.html
CosignService lsa-hpc
CosignCrypto /etc/certificates/lsa-mac-dev1.lsait.lsa.umich.edu.crtkey /etc/certificates/lsa-mac-dev1.lsait.lsa.umich.edu.crtkey /etc/apache2/cosign/CAcerts
CosignHttpOnly on  ### Our site is HTTP - if yours is HTTPS, remove this line

<Location />
CosignProtected on
</Location>

<Location /unprotected>
CosignProtected off
</Location>
#### END OF FILE

cd /etc/apache2/sites
# Add this line to your  site, anywhere inside the <VirtualHost> block
        Include "/etc/apache2/cosign/site_conf"

##### Build and install cosign:
Download the latest version from http://weblogin.org/
setenv CFLAGS "-arch x86_64"  # Be sure to use your correct arch here
setenv LDFLAGS "-Wl,-arch -Wl,x86_64"  # Be sure to use your correct arch here
./configure --enable-apache2=/usr/sbin/apxs
Modify filters/apache2/Makefile and add the following to the end of the CFLAGS line:
     -Wc,-arch -Wc,x86_64
make
sudo cp -R CAcerts /etc/apache2/cosign
cd filters/apache2/
sudo /usr/sbin/apxs -i -a -n 'cosign' mod_cosign.la

sudo mkdir -p /var/cosign/filter
sudo chown www /var/cosign/filter
cd /etc/apache2/cosign/CAcerts
sudo c_rehash .

######## Background info on the Makefile change:
When I just did a straight "configure, then make", the module built with only one architecture, i386.  The problem is, that Leopard is now 64-bit aware across the board, and Apache (httpd) is built with 4 architectures (ppc7400, ppc64, i386, x86_64).  Since httpd was running on 64-bit hardware, it was running using the x86_64 arch, and since the cosign module built with the i386 arch, it wouldn't load the module.  I worked around this primarily with the CFLAGS and LDFLAGS environment modules shown above, but found that some of the .o files that make up the final module were still just getting compiled as i386, so I had to modify the Makefile to force those into x86_64 as well.  It's quite possible there's a better way to do it, but this worked, so I wanted to share it.
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