OSSEC is a host-based intrusion detection system (HIDS). It is specially well known for monitoring files that shouldn’t change on a system (such as critical system files, or binaries, etc) and warning administrators (or anyone you’d like) about those issues. But it does more such as rootkit detection and log analysis with a dedicated engine. Furthermore OSSEC is PCI … [Read more...]
How to set CentOS 7 repositories
CentOS is the free open source replica of the well known Red Hat Enterprise Linux (RHEL). With a very good reputation because of its stability and performance RHEL is nowadays the dominating GNU/Linux distribution in the enterprise environment. As a gift, in a similar fashion to Microsoft's Windows trial versions (without limits to the use), the CentOS operating system is … [Read more...]
How to install Suricata on FreeBSD
Suricata is a free, open source, Intrusion Detection System software, or IDS for short. But it can also act as an Intrusion Prevention System, or IPS. It works by finding patterns using heuristics typically from network traffic. When configured to just warn about suspicious activity it is called an IDS, however when it blocks the traffic because of the pernicious activity it is … [Read more...]
Reasonable amount of enabled modules on Apache HTTP
CentOS Ubuntu FreeBSD core_module (static) core_module (static) core_module (static) so_module (static) so_module (static) so_module (static) http_module (static) watchdog_module (static) http_module (static) access_compat_module (shared) http_module (static) mpm_prefork_module (shared) actions_module (shared) log_config_module … [Read more...]
How to mitigate/solve the MDS vulnerabilities of Intel processors in FreeBSD
It had to happen again. Anyone betting on new hardware vulnerabilities on Intel processors would have won. This time these are called the MDS vulnerabilities, which stands for Microarchitectural Data Sampling. The trouble is the ones who would have really made big money would have been those stating the new CPUs were on the same conditions or even worse as the older CPUs. And … [Read more...]