What an IT administrator should know about Heartbleed
This is a quick summary of what every IT administrator should know about the Heartbleed bug. It may become obsolete as... Continue reading →
Understand Heartbleed (CVE 2014-0160) simplified for everyone’s understanding
Randall Munroe did an excellent drawing allowing everyone to understand how Heartbleed (CVE 2014-0160) leaks server’s secrets. Source: http://xkcd.com/1354/
Exim4 not sending authentication to a remote smarthost SMTP
Update 2014-08-15: This article also solves the symptom 503 sender is null. Seen with net.cn mail service. I stumbled on... Continue reading →