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Migration of iPrint services from NetWare to OES Linux

Novell Cool Solutions: Feature
By David Krotil

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Posted: 11 Jan 2007
 

Goal:

Migrate iPrint services from NetWare 6.5 to OES Linux in the same tree, to the same container, to the same DNS name.

Starting conditions:

NetWare NDPS Manager bound to DNS name printing.domain.com, with several printer agents in container OU=PRINTING.O=ORG

Versions of NDPS / iPrint components:

NetWare 6.5 SP5 , NDPSM 3.01t
OES Linux SP2, novell-iprint-server-5.1.20061109-3
Windows XP SP 2 with iPrint client 4.26

Tools :

  • Server Consolidation Migration Toolkit 1.1
  • ConsoleOne 1.3.6e
  • iManager 2.5 with iPrint plugin 2.5.5.20060626 on OES Linux server

First step:

On OES Linux, create Drivers Store ( needed for iPrint Printer Manager ) with iManager ( Linux ), create OU=TEMP under OU=PRINTING.O=ORG. This temporary placeholder for Printer Manager is needed when we want to migrate iPrint services to the same container, but there can be only one eDirectory object representing Printer Agent ( PA ).

I would like to share my experience with a problem I faced on OES Linux with iManager and iPrint services. These are tightly bounded to Apache. When you use a DNS name, you need to create a security certificate with this iPrint service DNS name.

In this temporary container you have to place new Printer Manager and use the IP of your OES Linux server.

Second step:

With help of the Server Consolidation Utility 4.11 (NetWare to OES) migrate all PA's from NetWare NDPSM agent to the temporary iPrint Printer Manager on the OES Linux server. It is good practice not to migrate all PA's at once, but split migration process into smaller groups. In my case, when I migrated all agents at once, I got a "An untrapped error occurred in ApplyProcessedXmlFile(). Caught by exception handler in ApplyProcessedXMLThread." error.

Now review the success and error log of SCU utility. I have two problems with the migration process. Errors in migrating setting and errors in migrating drivers. In both cases it helped deleting problem PA and migrating one more time.

Third step:

After a successful migration of all PA's to the OES Linux Printer Manager we need to delete all source PA's on NetWare NDPSM. With this operation, we make place for moving PA's from our temporary placeholder ( OU=TEMP,OU=PRINTING,O=ORG ).

After successfully removing of all PA's from NDPSM on the NetWare server we have to unload both NDPS Manager and Broker. Comment it out from AUTOEXEC.NCF and del(ete) the secondary ip address which represented the DNS name printing.domain.com.

Now, we add the secondary IP address from above to the OES Linux server via YAST > Network devices > Network Card, under Already configured devices we choose Change, then Edit on Network Card to which will be bounded to the secondary IP address. Under Detailed settings we choose Advanced > Virtual Aliases > Add.

Stop iPrint Printer Manager on the OES Linux server with:

rcnovell-ipsmd stop

Move the iPrint Printer Manager object and all PA's objects with ConsoleOne to source OU=PRINTING.O=ORG.

While we are binding iPrint Printer Manager to the DNS printing.domain.com name, we need to change Apache config. We create a virtual host with the help of the config file /etc/apache2/vhosts.d/vhost-ssl.conf which can be used as a template.

Another problem that is bound to SSL and Apache on OES Linux platform for NetWare administrators is, that we need to create SSL certificate files because we can't use eDir for retrieving SSL certificates for Apache.

For Linux newbies I'm attaching a short manual for creating SSL certificates:

On terminal prompt:

cd /tmp/
mkdir ssl
cd ssl

openssl genrsa -out server.key 1024
openssl req -new -key server.key -out server.csr 

While creating a certificate request, the last entry should be a Common Name, in our case printing. In ConsoleOne, Issue Certificate and save certificate in DER format.

openssl x509 -inform DER -in server.der -out server.crt -outform PEM

This way we convert from DER to PEM format our issued certificate.

openssl x509 -inform DER -in rootcert.der -out rootcert.crt -outform PEM

This way we convert Root Certificate rootcert.der from the NetWare server to PEM format.

On the temporary copy of the server certificate we can create a CA bundle which is useful when we want our Apache server not to display security warning, that the company which issued this certificate we don't trust.

cp server.crt server2.crt

cat rootcert.crt >p>p server2.crt

ren server2.crt ca-bundle.crt

These certificates need to be placed in the /etc/apache2/ssl... folders. The right folder placement is self explained. Certificates will need to be renamed when there is a name conflict.

After restarting Apache with the terminal command rcapache2 restart we are now ready for the next step.

Last step:

Now we edit the eDir object representing iPrint Printer Manager which we moved from the temporary placeholder in the previous step.

Change the attribute:

Network Address ( to IP address representing printing.domain.com )
iPrintManagerDBPath ( /var/opt/novell/iprint/iPrintManager.TEMP.PRINTING.ORG.psm to /var/opt/novell/iprint/iPrintManager.PRINTING.ORG.psm )
iPrintManagerIPURI (https://192.168.1.1/ipps/iPrintManager.TEMP.PRINTING.ORG to https://printing.domain.com/ipps/iPrintManager.PRINTING.ORG )

Then rename folder

/var/opt/novell/iprint/iPrintManager.TEMP.PRINTING.ORG.psm to /var/opt/novell/iprint/iPrintManager.PRINTING.ORG.psm.

Rename

/etc/opt/novell/iprint/conf/iPrintManager.TEMP.PRINTING.ORG.ipsmd.conf to iPrintManager.PRINTING.ORG.ipsmd.conf , in same folder should be symlink for this file ipsmd.conf.

Then modify the above file /etc/opt/novell/iprint/conf/ iPrintManager.PRINTING.ORG.ipsmd.conf

Before:

DSServer1 server.domain.com
PSMObjectDN CN=iPrintManager,OU=TEMP,OU=PRINTING,O=ORG
PSMObjectPasswd xxxxxxxxxxxxxxxxxxxxx
PSMHostAddress 192.168.1.1

After:

DSServer1 server.domain.com
PSMObjectDN CN=iPrintManager,OU=PRINTING,O=ORG
PSMObjectPasswd xxxxxxxxxxxxxxxxxxxxx
PSMHostAddress printing.domain.com

Start iPrint Printer Manager with:

rcnovell-ipsmd start

In iManager, we should be at the end of the review if the previous operations were successfull.

Conclusion:

When all previous operations where successful we migrated iPrint services from NetWare to OES Linux without any changes needed to be done on the users workstations. This is good start of a painless move from NetWare to OES Linux.


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