rayheffer.com
CentOS Archives - Ray Heffer
http://www.rayheffer.com/linux/centos-linux
Double VCDX - EUC and Cloud Architect. End User Computing (EUC). Essential Linux Skills with CentOS 7 Secure Firewall with iptables. September 14, 2015. Following the theme for ELS (Essential Linux Skills) with CentOS 7 ( see part 1. If you are responsible for building Linux hosts for web applications then this will be an especially important topic for you. The same applies if you want to master security with Linux. This might get a little technical, but hang in there. September 12, 2015. This is the fir...
rayheffer.com
Scripting Archives - Ray Heffer
http://www.rayheffer.com/linux/linux-scripting
Double VCDX - EUC and Cloud Architect. End User Computing (EUC). Use Curl and Wget to Make Your Life Easier (DNS API update with external IP). January 11, 2016. Filed Under: Home Lab. Shellshock Vulnerability and Potential Exploitation (not another blog post on CVE-2014-6271 / CVE-2014-7169). September 28, 2014. For a quick technical reference then feel free to read on… [Read more…]. How to script your own dynamic DNS on CentOS with Linode API. April 28, 2012. A domain name hosted on Linode. A chair to s...
lonesysadmin.net
Latest ESXi Turns Off Transparent Page Sharing, So Watch Your RAM - The Lone Sysadmin
https://lonesysadmin.net/2015/02/01/latest-esxi-turns-off-transparent-page-sharing-watch-ram
Latest ESXi Turns Off Transparent Page Sharing, So Watch Your RAM. February 1, 2015. Transparent Page Sharing is a technology from VMware that essentially deduplicates memory. Instead of having 100 copies of the same memory segment it keeps just one, and returns the savings to the user in the form of additional free capacity. Which, under ESXi 5.5 Update 2d, will be gone. This is all due to a low-risk security concern. More information is in the VMware KB:. Additional Transparent Page Sharing management ...
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