Tag: centos

Linux Application Linux System

Some tips with Ansible Modules for managing OS and Application

Estimated read time 2 min read

In the year 2016, I published some articles on Ansible: Getting started with Ansible deployment, which provide some guides to get started with Ansible, setting up the SSH key and other basic stuffs. Another article is about LVM configuration on [Read More…]

Linux System

Debugging disk issues with blktrace, blkparse, btrace and btt in Linux environment

Estimated read time 8 min read

blktrace is a block layer IO tracing mechanism which provides detailed information about request queue operations up to user space. There are three major components: a kernel component, a utility to record the i/o trace information for the kernel to [Read More…]

Linux System Security

Linux memory analysis with Lime and Volatility

Lime is a Loadable Kernel Module (LKM) which allows for volatile memory acquisition from Linux and Linux-based devices, such as Android. This makes LiME unique as it is the first tool that allows for full memory captures on Android devices. [Read More…]

Linux System Security

Auditing Linux Operating System with Lynis

Estimated read time 6 min read

Auditing a Linux System is one of the most important aspect when it comes to security. After deploying a simple Centos 7 Linux machine on virtual box, I made an audit using Lynis. It is amazing how many tiny flaws [Read More…]

Database Systems Linux Application Linux System Security

Securing MySQL traffic with Stunnel in a jail environment on CentOS

Stunnel is a program by Michal Trojnara that allows you to encrypt arbitrary TCP connections inside SSL. Stunnel can also allow you to secure non-SSL aware daemons and protocols (like POP, IMAP, LDAP, etc) by having Stunnel provide the encryption, [Read More…]