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nginx: How To Set A Connection Limit For Search Engine Bots Gone Wild (Especially Bingbot)

nginx: How To Set A Connection Limit For Search Engine Bots Gone Wild (Especially Bingbot)

As a server administrator you might know this problem: you have done everything to optimize your server and it's working really well, and along comes a stupid search engine bot (like Bingbot) and hits all your vhosts at the same time with hundreds of connections, making your server load go up. Of course, you don't want to completely block the bot (unless you don't care about that particular search engine), so you can use robots.txt and/or nginx to control connections of a search engine bot to your server.

Setting Up A Subversion Repository On Linux

Setting Up A Subversion Repository On Linux

In this tutorial I'll explain how to setup a subversion repository for PHP Javascript development. The SVN repository will be used by multiple users using an SSH key to logon to the server. All users will use the svn system user but we'll use the SSH key to identify the user. A pre-commit hook will be used to validate the PHP and Javascript to comply with coding rules.

How To Use Multiple PHP Versions (PHP-FPM & FastCGI) With ISPConfig 3 (Ubuntu 13.04)

How To Use Multiple PHP Versions (PHP-FPM & FastCGI) With ISPConfig 3 (Ubuntu 13.04)

Since ISPConfig 3.0.5, it is possible to use multiple PHP versions on one server and select the optimal PHP version for a website. This feature works with PHP-FPM (starting with PHP 5.3) and FastCGI (all PHP 5.x versions). This tutorial shows how to build PHP 5.3 and PHP 5.4 as a PHP-FPM and a FastCGI version on an Ubuntu 13.04 server. These PHP versions can be used together with the default PHP (installed through apt) in ISPConfig.

Functions In PHP

Functions In PHP

Functions are considered to be a complicated topic in programming and many newbies think it will cost them a hand and a leg to master them. But mark my words and mark them well - functions are your friends and they are one of the easiest and most effective things in programming to learn.

Using Solr With TYPO3 On Debian Wheezy

Using Solr With TYPO3 On Debian Wheezy

TYPO3's default search extension called "Indexed Search" is fine for small web sites, but if your web site is bigger (> 500 pages), it is getting very slow. Fortunately, you can replace it with a search extension that uses the ultra-fast Apache Solr search server. This tutorial explains how to use Apache Solr with TYPO3 on Debian Wheezy.

Securing SSH On Ubuntu Precise With WiKID Two-Factor Authentication

Securing SSH On Ubuntu Precise With WiKID Two-Factor Authentication

SSH offers a highly secure channel for remote administration of servers. However, if you face an audit for regulatory or business requirements, such as Visa/Mastercard PCI, you need to be aware of some potential authentication related short-comings that may cause headaches in an audit. In this document we are going to demonstrate how to combine two-factor authentication from WiKID on Ubuntu. This document will also serve as the basis for additional tutorials because many services on Linux use PAM for authentication.

Using Solr With TYPO3 On Debian Squeeze

Using Solr With TYPO3 On Debian Squeeze

TYPO3's default search extension called "Indexed Search" is fine for small web sites, but if your web site is bigger (> 500 pages), it is getting very slow. Fortunately, you can replace it with a search extension that uses the ultra-fast Apache Solr search server. This tutorial explains how to use Apache Solr with TYPO3 on Debian Squeeze.

The Perfect Server - Debian Wheezy (nginx, BIND, Dovecot, ISPConfig 3)

The Perfect Server - Debian Wheezy (nginx, BIND, Dovecot, ISPConfig 3)

This tutorial shows how to prepare a Debian Wheezy server (with nginx, BIND, Dovecot) for the installation of ISPConfig 3, and how to install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the following services through a web browser: Apache or nginx web server, Postfix mail server, Courier or Dovecot IMAP/POP3 server, MySQL, BIND or MyDNS nameserver, PureFTPd, SpamAssassin, ClamAV, and many more. This setup covers nginx (instead of Apache), BIND (instead of MyDNS), and Dovecot (instead of Courier).

How To Configure Apache To Use Radius For WiKID Two-Factor Authentication On Ubuntu

How To Configure Apache To Use Radius For WiKID Two-Factor Authentication On Ubuntu

This document describes how to add WiKID two-factor authentication to Apache 2.x using mod_auth_radius on Ubuntu 12.04 Precise. It is recommended that you consider using mutual https authentication for web applications that are worthy of two-factor authentication. Strong mutual authentication means that the targeted website is authenticated to the user in some cryptographically secure manner, thwarting most man-in-the-middle attacks. The use of cryptography is key. While some sites use an image in an attempt to validate a server, it should be noted that any man-in-the-middle could simply replay such an image.

Using ngx_pagespeed With nginx On Debian Wheezy

Using ngx_pagespeed With nginx On Debian Wheezy

Google has just released PageSpeed Beta for nginx, the nginx equivalent of mod_pagespeed for Apache. This module applies web performance best practices to pages, and associated assets (CSS, JavaScript, images) and therefore speeds up your web site and reduces load times. This tutorial explains how to use PageSpeed with nginx on Debian Wheezy.

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