Tag Archives: 12c

Fedora 21 : Oracle 11g and 12c Installations

Fedora 21 has arrived and it’s now delivered in three focussed flavours (Workstation, Server and Cloud). This of course resulted in the usual articles from me.

Fedora 21 (F21) Installation
Oracle Database 11g Release 2 (11.2) Installation On Fed…

anonymous cypher suites for SSL (and a 12c pitfall)

If you configure your listener for encryption only, you do not really need authentication.
It works pretty fine until 11.2.0.2, I wrote multiple posts on ssl.
You add SSL_CLIENT_AUTHENTICATION=FALSE to your server sqlnet.ora and listener.ora and spec…

12.1.0.2 Introduction to Zone Maps Part III (Little By Little)

I’ve previously discussed the new Zone Map database feature and how they work in a similar manner to Exadata Storage indexes. Just like Storage Indexes (and conventional indexes for that manner), they work best when the data is well clustered in …

KeepAlive socket in 12c listener

A not uncommon issue with firewalls and listeners are timeouts. Your production database may be behind a firewall, you may connect from a remote location, even your Windows workstation may have some firewall activated, possibly you use ssh tunnels or T…