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SUDO for AIX - and NOEXEC
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AIX - Tools for AIX
Written by Michael Felt   

I am not a big user of sudo, but I frequently visit customers who are. One issue came up re: why they also installed the program "less" rather than use the AIX default "more".

The issue here is the escape in "more" to open a file with /usr/bin/vi - and then do a shell escape as an elevated user. TA-ta-TA-dah become root with an open shell.

So, my question was - why use "less"? How does this help with NOEXEC?

Last Updated ( Tuesday, 21 March 2017 )
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Can RPM and INSTALLP work side-by-side?
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AIX - AIX: Security
Written by Michael Felt   

INSTALLP and RPM - can they co-exist?

Historically - common practice would seem indicate the answer is yes. However, I would say history has proven they cannot for short or long term.

Found my examples!

Visiting a customer this week - I rediscovered examples of why I starting "rolling my own", i.e., downloading, configuring and installing OSS independently.

At this customer the command rpm -qa returns a list of about 20 rpm packages installed. Most of these have never been updated since being installed between 2010 and 2012.

Note: RPM packages are not part of the standard TL-SP updates - the exception being the occaisional update to the fileset rpm.rte

Last Updated ( Monday, 06 February 2017 )
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DRAFT: OpenSSL and who signed what
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Prepublish - Waiting
Written by Michael Felt   

Getting started with OpenSSL and self-signed keys

 This is a DRAFT article - LIKE/RT on twitter to indicate interest (or RT a down vote). Or - respond at "draft-articles " - Thanks!

a) The one command way
b) the multi-command way - because you want to make multiple keys - all signed by a common key (i.e. self-CA)

Show how step b) compares to using "commercial" CA with using "self-signed" CA.

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