Tags: web server


network traffic
Learn how to use IPtables to alter how your traffic is manipulated as it arrives at your server.

Redirecting Network Traffic: Part 2

In the previous article, I looked at how to use the clever redir utility to listen out for inbound traffic on a particular port on a host and then forward that traffic onward somewhere else. Here, I’ll briefly describe some other approaches to manipulating traffic that may suit your needs. IPTables...
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Apache “Optionsbleed” Vulnerability – What You Need to Know

Remember Heartbleed? That was a weird sort of bug, based on a feature in OpenSSL called “heartbeat”, whereby a visitor to your server can send it a short message, such as HELLO, and then wait a bit for the same short message to come back, thus proving that the connection is still alive. The...
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Imunify360 Linux Web Server Security Is Free for Nonprofits

If you work for a nonprofit organization or a charity, you can now request Imunify360 licenses for it at no cost.  Usually, nonprofits have limited IT resources and are not always able to keep their web servers safe. Most of the security products available today were designed for the enterprise to...
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In this tutorial, Carla Schroder explains how to protect your Postfix/Dovecot mail server with OpenSSL.

OpenSSL For Apache and Dovecot: Part 2

Last week, as part of our meandering OpenSSL series, we learned how to configure Apache to use OpenSSL and to force all sessions to use HTTPS. Today, we'll protect our Postfix/Dovecot mail server with OpenSSL. The examples build on the previous tutorials; see the Resources section at the end for...
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How Stack Overflow Plans to Survive the Next DNS Attack

Let’s talk about DNS. After all, what could go wrong? It’s just cache invalidation and naming things. tl;dr This blog post is about how Stack Overflow and the rest of the Stack Exchange network approaches DNS: By bench-marking different DNS providers and how we chose between them By implementing...
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Open Source Server Simplifies HTTPS, Security Certificates

Forget expired TLS certificates; the lightweight Caddy web server handles Let's Encrypt certificates and redirects HTTP traffic by default. For administrators seeking an easier method to turn on HTTPS for their websites, there is Caddy, an open source web server that automatically sets up security...
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Creating Your Own Webserver and Hosting A Website from Your Linux Box

Most people assume that running your own webserver requires an incredible set of skills, something that only a cast member out of Mr. Robot would be capable of doing. Not true. It’s relatively straightforward; assuming you have the right equipment (and you don’t need much!), you can get your very...
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NGINX’s Plan to Create a $1 Billion Business from its Open Source Software

NGINX Inc. has a set an ambitious goal for itself: To become a $1 billion company within the next eight to 10 years. It will not be an easy task, especially given that its biggest competitor may be its own well-engineered open source software. For NGINX, the key to success will be to successfully...
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Shared Hosting on your Web Server: Multiple virtual hosts

This article tends to help you to set up multiple websites (or virtual hosts) on single web server running on Linux. It's particularly useful if you don't want to spend money on multiple Virtual Private Servers (VPS), but you'd like to have ability to run and build multiple websites with minimum...
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How to speed up apache with mod_pagespeed and Memcached on Ubuntu 15.10

This tutorial shows how to improve the page load times of your website by using the Google mod_pagespeed module for Apache in conjunction with the fast in-memory cache Memcached. Pagespeed is an Apache 2 module that optimizes and caches the content of a website before it gets delivered to the...
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