Found a good site that explains the mrepo configuration on setting up an apt/yum repository from ISO images, online updates, patches and custom packages... Looks to be very cool and much more flexible than Oracle's own ULN local mirror function...
Just found a great tip to prevent timeouts of PuTTY sessions. I'm fine with timeouts by the host, but in our case the firewall kills sessions after 30 minutes of inactivity... When using PuTTY to ssh to your Linux/Unix servers, be sure to use the feature to send NULL packets to prevent a timeout. I've set it to once every 900 seconds, i.e. 15 minutes... See screenshot on the right.
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