For quite some time it seemed as if cyber vulnerabilities in the Java ecosystem would be losing ground. Instead, it was the calm before the storm: a vulnerability in the Log4j library threatens web servers and other applications in a variety of ways.
In an administrator’s quest to get stuff done, SELinux tends to get in the way. It is being perceived as a nuisance rather than a feature and this happens mostly for only one reason: setting correct SELinux labels requires the ability to figure out the appropriate SELinux security contexts. Here is how to do it.
Finding errors in a postfix log file is tedious work. The job gets even more complicated if you have to dig through old postfix log files which might no longer be relevant. logrotate comes to the rescue, but only if you configure it correctly. Here is how you can do it on Fedora.
[Updated 2020-12-04] This post explains how to set up robust security headers in NGINX to protect your web application from malicious payloads and other forms of attacks. Choose your HTTP(S) headers wisely.
In the stormy race of the digital transformation, the hybrid landscape of corporate IT is increasingly evading manageability. Could the control plane of a hyperscaler provide a lasting remedy? Would you need special hardware?