How to secure and lock down Apple OS X 10.11 (El Capitan) with osxlockdown

msrxp linux, training January 5, 2018
Is there is an easy way to audit and lock down (secure) Apple OS X 10.11 (El Capitan) unix operating system?   Yes you can use the osxlockdown tool. It was built to audit, and…
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How To Patch and Protect Linux Kernel Zero Day Vulnerability CVE-2016-0728 [ 19/Jan/2016 ]

msrxp linux, training January 5, 2018
A very serious security problem has been found in the Linux kernel. A 0-day local privilege escalation vulnerability has existed since 2012. This bug affects millions of Android or Linux applications to escalate privileges. Any…
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How To Setup OpenVPN Server In 5 Minutes on Ubuntu Server

omid linux, training January 4, 2018
I am a new Ubuntu Linux server user. How do I setup an OpenVPN Server on Ubuntu Linux version 14.04 or 16.04 LTS server to shield my browsing activity from bad guys on public Wi-Fi,…
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How to fix Httpoxy a CGI PHP/Nginx/Apache/Go application vulnerability on Linux or Unix

omid linux, training January 4, 2018
A serious vulnerability was discovered in how CGI scripts are used by Linux or Unix that use PHP, Go, Python, and other scripting languages. How do I fix Httpoxy a CGI application vulnerability on Linux…
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How to apply Debian security patches

msrxp linux, training January 4, 2018
I am new to Debian and confused about how to get access to the Debian security updates. How do I apply security patches to my Debian Linux server using the command line option?   If…
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How to configure Wi-fi+Lan bridged access point in pfSense firewall router

msrxp linux, training January 4, 2018
I have installed wireless mini-PCIe card for my pfSense firewall. How do I configure a bridged LAN wifi access point (AP) network and setup pfSense?   In this tutorial, I will explain how to setup…
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How to force users to use secure passwords on Ubuntu/Debian Linux

msrxp linux, training January 4, 2018
M y Linux shell user can modify their password using the passwd command. How can I force users to choose the secure password that will prevent users from using stupid passwords like “abc123”, “password”, “123456”…
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How to apply patches on OpenBSD system/kernel and packages easily

msrxp linux, training January 4, 2018
Iam a regular Linux system user. In Linux (especially CentOS), I am used to applying updates a few times a week using yum command, but how do I do that on my OpenBSD severer? How…
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How To Patch and Protect Linux Kernel Zero Day Local Privilege Escalation Vulnerability CVE-2016-5195 [ 21/Oct/2016 ]

msrxp linux, training January 4, 2018
A very serious security problem has been found in the Linux kernel. A 0-day local privilege escalation vulnerability has existed for eleven years since 2005. This bug affects all sort of of Android or Linux…
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How to setup HTTP Strict Transport Security With Lighttpd Web Server

msrxp linux, training January 4, 2018
HTTP Strict Transport Security (HSTS) is a security feature that lets your web site tell client browsers that it should only be communicated with using HTTPS only. How can I setup HSTS using lighttpd web…
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