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 (static) authn_file_module (shared) alias_module (shared) logio_module (static) authn_core_module (shared) allowmethods_module (shared) version_module (static) authz_host_module (shared) auth_basic_module (shared) unixd_module (static) authz_groupfile_module (shared) auth_digest_module (shared) access_compat_module (shared) […]
Reasonable amount of enabled modules on Apache HTTP
VMWare ESXi (One)
The VMWare ESXi is a hypervisor developed by the VMWare company and it is widely known and used in many environments and enterprises of all sorts. Nowadays it is the main component of a sort of a software suite. It is a type one hypervisor which means it runs directly on to the hardware controlling […]
How to install OSSEC server on Ubuntu
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. […]
How to install Docker on Ubuntu 18.04
Operating System level virtualization is hitting hard now, as much as VM’s did just a few years ago. Docker is the popular framework for this matter, the new kid on the block so to speak. This is the hot spot now and if anyone wants to appear knowledgeable about system administration knowing this technology is […]
How to install AWStats on FreeBSD 13.0
AWStats is a very powerful and useful software allowing webmasters count the visits to their managed websites. The tool is basically coded in Perl and it was a very popular choice before Google made it way easy when they launched their Google Analytics tool. However, nowadays not everyone is using Google Analytics services and even […]
How to install sudo in FreeBSD
Sudo is a very useful application. It allows a regular user to perform tasks only reserved to the root account. There is lots of documentation about sudo and there is even a book about it called “Sudo Mastery”. If you need to investigate deep on this, buy it. Why do you need this? Well… Everyone […]
How to mitigate Spectre and Meltdown on an HP Proliant server with Ubuntu
As recently announced in a previous article I wanted to write a couple of guides on how to mitigate Spectre and Meltdown vulnerabilities in GNU/Linux and UNIX environments. It is always a good and I hope a standard practice to have your systems patched and if they aren’t for whatever the reason (that legacy thing […]
How to import iocage jails to Bastille on FreeBSD 13
Being a fan and heavy user of FreeBSD jails, I’ve been using iocage for years now. However, iocage is not the only tool capable of making abstractions on top of the jail infrastructure in FreeBSD to make it easier to manage in a not just easier way, but quicker, centralized manner. Bastille is the other […]
A few useful network commands
Troubleshooting network issues with simple commands is not a very difficult topic once there is a little toolbox to pull from. Needless to say networking topics can be very complicated and any specialist on the field will tell you how cumbersome it can really get. However with a few set of commands one can get […]
How to load and unload kernel modules in Linux
Kernel modules permit enabling hardware features on a given system. For example, if we need to read from a particular filesystem from a hard drive, we need to load a particular kernel module. Or use a specific network card, a sound card or sound device, a video display, etc. This is mostly done automatically in […]