More Linux work :)

Friday, November 4, 2016 | Read More

glibc CVE re: getaddrinfo() and userspace ksplice

I have my own server with Oracle Linux 6 (of course) where I host a ton of personal stuff and this server was also affected by the nasty DNS bug from last week (see : CVE-2015-7547). Everyone really should update glibc and make sure their system is patched (any distribution) by the way - this is a very serious vulnerability... The nice thing, however, was that this is a perfect example for user space ksplice patching. A quick ksplice update for glibc on this box, and it was...

Saturday, February 20, 2016 | Read More

Secure Boot support with Oracle Linux 7.1

Update : as my PM team pointed out to me - it's listed as Tech Preview for OL7.1 not GA/production in the release notes - just making sure I add this disclaimer ;) Another feature introduced with Oracle Linux 7.1 is support for Secure Boot. If Secure Boot is enabled on a system (typically desktop, but in some cases also servers) - the system can have an embedded certificate (in firmware). This certificate can be one that's uploaded to the system by the admin or it could be one...

Friday, March 13, 2015 | Read More

Oracle Linux 7.1 and MySQL 5.6

Yesterday we released Oracle Linux 7 update 1. The individual RPM updates are available from both public-yum (our free, open, public yum repo site) and Oracle Linux Network. The install ISOs can be downloaded from My Oracle Support right away and the public downloadable ISOs will be made available in the next few days from the usual e-delivery site. The ISOs will also, as usual, be mirrored to other mirror sites that also make Oracle Linux freely available. One update in...

Friday, March 13, 2015 | Read More

Oracle Linux and Database Smart Flash Cache

One, sometimes overlooked, cool feature of the Oracle Database running on Oracle Linux is called Database Smart Flash Cache. You can find an overview of the feature in the Oracle Database Administrator's Guide. Basically, if you have flash devices attached to your server, you can use this flash memory to increase the size of the buffer cache. So instead of aging blocks out of the buffer cache and having to go back to reading them from disk, they move to the much, much faster...

Tuesday, February 24, 2015 | Read More

New features in ksplice uptrack-upgrade tools for Oracle Linux

We have many, many happy Oracle Linux customers that use and rely on the Oracle Ksplice service to keep their kernels up to date with all the critical CVEs/bugfixes that we release as zero downtime patches. There are 2 ways to use the Ksplice service : Online edition/client The uptrack tools (the Ksplice utilities you install on an Oracle Linux server to start applying ksplice updates) connect directly with the Oracle server to download updates. This model gives the most...

Monday, December 22, 2014 | Read More

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