These are my links for 14 giu 2013 through 18 giu 2013:
apache2-mpm-itk – apache2-mpm-itk (just mpm-itk for short) is an MPM (Multi-Processing Module) for the Apache web server. mpm-itk allows you to run each of your vhost under a separate uid and gid—in short, the scripts and configuration files for one vhost no longer have to be readable for all the other vhosts. mpm-itk is based on the traditional prefork MPM, which means it's non-threaded; in short, this means you can run non-thread-aware code (like many PHP extensions) without problems. On the other hand, you lose out to any performance benefit you'd get with threads, of course; you'd have to decide for yourself if that's worth it or not. You will also take an additional performance hit over prefork, since there's an extra fork per request. [ via http://bastian.rieck.ru/blog/posts/2012/secure_owncloud_installation/ ]
iTerm2 – Mac OS Terminal Replacement – iTerm2 is a replacement for Terminal and the successor to iTerm. It works on Macs with OS 10.5 (Leopard) or newer. Its focus is on performance, internationalization, and supporting innovative features that make your life better.
Introducing Pysa – Reverse your servers’ configurations! | MadeiraCloud – We are excited to announce the Alpha release of our new open-source configuration reverse engineering tool: Pysa Pysa aims to help anyone who wants to replicate an existing configuration and not simply clone the entire machine. It can be use to migrate configurations from one computer to another (as physical machines to virtual clouds), backup existing configurations, or for any other migration purpose.
These are my links for 14 mag 2013 through 21 mag 2013:
Caching Nameserver using dnsmasq – dnsmasq is a lightweight, open-source DNS forwarder and DHCP server. In this article we go through how to prepare the system in order to run dnsmasq and also how to configure the latter as a caching-only DNS server. A configuration file is also provided as a drop-in replacement for the default dnsmasq.conf that ships with your system. dnsmasq is available in most Linux distributions.
Docker – the Linux container engine – Docker is an open-source engine which automates the deployment of applications as highly portable, self-sufficient containers which are independent of hardware, language, framework, packaging system and hosting provider.
5G Blacklist 2012 : Perishable Press – The 5G Blacklist helps reduce the number of malicious URL requests that hit your website. It’s one of many ways to improve the security of your site and protect against evil exploits, bad requests, and other nefarious garbage. [ via http://www.skyflash.it/internet-reti/sicurezza/protezione-di-un-sito-web-tramite-htaccess-5g-blacklist-2013/8061/ ]
Di recente ho avuto modo di lavorare sull'ottimizzazione di un server web, ed è interessante notare come sia possibile ottenere ottimi risultati intervenendo su tre semplici parametri di configurazione del web server Apache:
MaxClients MaxKeepAliveRequests KeepAliveTimeout parametri la cui importanza è spesso sottovalutata e che non sempre garantiscono le migliori prestazioni alle loro impostazioni di default.
Optimize MySQL settings for Magento database – The Tuning Primer is a shell script that allows you to review the MySQL settings and make adjustments to increase Magento database performance and stability. The script will analyze MySQL statistics and provide you with recommendations on how to fine-tune your MySQL server.
The uptime of your MySQL should be more than 48 hours for correct script work. Only in this case there will be enough information for analysis. Tuning Primer script is compatible with all versions of MySQL starting from 3.23.