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Apr 21 2005
NetBackup Migration from Unix to Windows Print E-mail
NetBackup
Written by Paul Winkeler   
Wednesday, 20 April 2005
Earlier this month I asked around for some advice on how best to about migrate a NetBackup 3.4 installation on Solaris to version 4.5 on Windows. Many were called, but few answered. Those who did expressed disdain at the direction of the migration without offering much advice. My own instincts told me I should migrate first and then upgrade so that is how this author started his morning...
Last Updated ( Thursday, 26 April 2007 )
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May 06 2004
Linux WinModem (a.k.a. LinModem) Support Print E-mail
OSS Information Flow Solutions
Written by Paul Winkeler   
Thursday, 06 May 2004

List of vendors and their associated driver support information gleaned from the net.

A good summary of the state of Linux support for WinModems is also available at Modemsite.com although you cannot download anything from them without paying a subscription fee.
A well-maintained, open site on all things LinModem is maintained by Jacques Goldberg at Technion University in Israel.

 
Mar 16 2004
Linux Email Scrubbing on a Budget Print E-mail
OSS Information Flow Solutions
Written by Paul Winkeler   
Tuesday, 16 March 2004

Once an organization finds itself relying more and more on the timeliness and cleanliness of its inbound e-mail, it is time to introduce a centralized e-mail server into the infrastructure. There are many commercial solutions out there but in this article I will briefly describe how to build such a server out of purely Open Source Software (OSS).

The server, of course, will run Linux. (PBnJ Solutions uses RedHat but you can choose any distribution you prefer.) The stock server install will get you all the sendmail pieces you need but just to be sure, look for the

/usr/share/sendmail-cf
directory to ensure you have the sendmail configuration tools you will need to build your e-mail routing rules.

Our sendmail routing rules will make use of procmail for final delivery by way of the SpamAssassin spam filtering routines, but prior to that, all e-mail will be inspected for viruses using Virge. Virge can be configured to use a number of different virus signature checking tools, our preference currently being the TrendMicro set. So the other two tools you need then are the trophie daemon which acts as an interface between virge and the TrendMicro scanning engine library (Look for the section headlined InterScan Messaging Security Suite.)

To stay current, regular downloads of the signature file are required. TrendMicro's website publishes these here.

For more details on how to write your sendmail routing scripts, set the appropriate file ownership on the various libraries and daemons and finally configure a secure imap server to read the e-mail store, please read on...

Last Updated ( Wednesday, 25 April 2007 )
 
Jan 05 2004
2004 Security Predictions; Some Things Just Don't Change Print E-mail
Enforcement and Awareness
Written by Paul Winkeler   
Monday, 05 January 2004

ComputerWorld has come out with its set of predictions for security related incidents likely to make headlines in 2004. Especially telling is their statement that "Many will begin to understand that the problem isn't with the technology, it's with the people!", something us technology people have been trying to get across for years. What makes anyone think 2004 will be any different?

Both USB ports and free access to each and every IM service do nothing to remind employees that the computing resources and data they manipulate on a daily basis belong to the company, not them. Yes, it is a people problem when these tools are used to carry confidential data into the wrong hands, but how do you reinforce this message and how do you remove temptation?
On the IM front we might see companies use internal messaging systems such Jabber and Sametime. USB ports are not so easy to control especially since these USB drives are so small and easily hidden. Perhaps some vendor will come up with a way to control allowable devices by vendor id and product code? For example, this could easily be part of the TrustedCore efforts put forth by Phoenix Technologies' cME project. (Unfortunately this project's design appears to be extremely Windows-centric and it is not clear whether any OSS can make effective use of it.)

And so, as usual, efforts are already underway to come up with technology-based solutions for what ComputerWorld so accurately pointed out, are really people problems...
Some things just don't change!

Last Updated ( Wednesday, 25 April 2007 )
 
Dec 23 2003
Data Buffer Size and Quantity Settings Print E-mail
NetBackup
Written by Paul Winkeler   
Tuesday, 23 December 2003

Much has been written on this subject already yet it continues to be a topic fraught with pitfalls and mired in confusion. Perhaps by describing the way NetBackup's tape writing (as implemented in bptm process) operates some of this veil can be lifted and tape drives can be made to hum more efficiently.

For each NetBackup job stream writing to tape, a bptm process is launched. Part of its launch information packet includes a description of the source of its data, i.e. the client machine, the NetBackup policy and schedule, etc. However, the first bptm process does not directly concern itself with contacting the client, instead, it forks off a child process to start listening on a predetermined TCP/IP socket for the client to contact it. The parent process meanwhile proceeds to allocate, open and otherwise prepare a tape and a tape drive to start writing the eagerly anticipated client data.
Next comes the description of how to the two pass this client data between eachother.

Last Updated ( Thursday, 26 April 2007 )
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Jun 25 2003
Labeling May Not Be P.C., But Somebody Has To Do It Print E-mail
NetBackup
Written by Paul Winkeler   
Wednesday, 25 June 2003

Anyone with more than one backup tape volume will have a need to apply labels to keep them straight. If nothing else because that is how all backup software refers to the tapes it writes and, hopefully, reads.

Although you can often-times get the tape vendors to sell you the tapes with labels already applied, there are still occasions where labels need to be generated after the tapes have been purchases. Here are some vendors we know about:

Last Updated ( Thursday, 26 April 2007 )
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