Archivio tag: learning

Bookmarks for 30 mar 2015 through 31 mar 2015

These are my links for 30 mar 2015 through 31 mar 2015:

  • 5 easy tips to accelerate SSL – Unhandled expression – SSL is slow. These cryptographic algorithms eat the CPU, there is too much traffic, it is too hard to deploy correctly. SSL is slow. Isn’t it? HELL NO! SSL looks slow, because you did not even try to optimize it! For that matter, I could say that HTTP is too verbose, XML web services are verbose too, and all this traffic makes the website slow. But, SSL can be optimized, as well as everything!
  • Cybrary – Free Online IT and Cyber Security Training, Forever! – Cybrary is a free and open source, online information technology (IT) and cyber security training environment for the world. We are dedicated to keeping the world’s IT professionals prepared for this ever changing industry and its technologies. You can learn almost anything IT and security related for free, and you can help others to do the same. Take a look at what you can learn: Systems Administration Network Administration Cyber Security Our free IT training classes include everything from industry certifications such as Certified Ethical Hacker, CISSP and CCNA to advanced niche skill sets like advanced penetration testing and cloud administration. Our training includes instructional lectures, interactive lab demonstrations, exam study guides, white papers, case studies and more. [ via]
  • Exploit Exercises – provides a variety of virtual machines, documentation and challenges that can be used to learn about a variety of computer security issues such as privilege escalation, vulnerability analysis, exploit development, debugging, reverse engineering, and general cyber security issues. [ via ]

Bookmarks for 9 mar 2015 from 10:39 to 15:26

These are my links for 9 mar 2015 from 10:39 to 15:26:

  • Oliver | An Introduction to Unix – Everybody Knows How to Use a Computer, but Not Everyone Knows How to Use the Command Line. Yet This is the Gateway to Doing Anything and Everything Sophisticated with a Computer and the Most Natural Starting Place to Learn Programming [ via ]
  • Security Tips for Apache Web Server – Debian-based Systems – Apache is one of the most widely spread Open Source web server for web hosting in Internet due to its stability, robustness and rich variety of modules and features. Due to its popularity, Apache comes with pre-build binary packages for almost all major Linux distributions and can also be installed on other Operating Systems such as Unix, Windows, Mac OSX, BSD etc. However, a basic installation of Apache on Linux systems, by default, doesn’t offer a full protection against attackers, so a few security measures must be taken in order to protect your machines, web servers and web documents against such types of malicious attacks. This article will provide you a few tips on how you can secure and protect Apache Web Server installed on Debian-based Linux distributions.
  • Feed43 : Convert any web page to news feed on the fly – Your favorite site doesn't provide news feeds? This free online service converts any web page to an RSS feed on the fly.

Bookmarks for 26 ago 2014 through 27 ago 2014

These are my links for 26 ago 2014 through 27 ago 2014:

  • Regular Expressions – Regular expressions ("regexes") are supercharged Find/Replace string operations. Regular expressions are used when editing text in a text editor, to: check whether the text contains a certain pattern find those pattern matches, if there are any pull information (i.e. substrings) out of the text make modifications to the text. As well as text editors, almost every high-level programming language includes support for regular expressions. In this context "the text" is just a string variable, but the operations available are the same. Some programming languages (Perl, JavaScript) even provide dedicated syntax for regular expression operations.
  • MySQL active-passive cluster | Your IT goes Linux – We will use the iSCSI Lun defined in our iSCSI cluster as a shared storage and we will run MySQL in active-passive (fail-over) mode using Pacemaker and Corosync cluster engine. The cluster will have to connect to the iSCSI target, mount the iSCSI partition on one node and start a MySQL service which has all its data on this partition.
  • Perl – […] Perl has horrors, but it also has some great redeeming features. In this respect it is like every other programming language ever created. This document is intended to be informative, not evangelical. It is aimed at people who, like me: dislike the official Perl documentation at for being intensely technical and giving far too much space to very unusual edge cases learn new programming languages most quickly by "axiom and example" wish Larry Wall would get to the point already know how to program in general terms don't care about Perl beyond what's necessary to get the job done. This document is intended to be as short as possible, but no shorter[…]
  • Linux Performance – This page links to various Linux performance material I've created, including the tools maps on the right, which show: Linux observability tools, Linux benchmarking tools, Linux tuning tools, and Linux observability sar. For more diagrams, see my slide decks below.
  • AIXchange: Useful Storage Links – Here's an assortment of really good storage-related articles — the majority of which are found on IBM developerWorks — that are worth your time. While some of them are a few years old, they still provide relevant information.

Bookmarks for 22 giu 2014 through 23 giu 2014

These are my links for 22 giu 2014 through 23 giu 2014: