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Search results for Speedup DNS requests with a local cache

Debian

Speedup DNS requests with a local cache

Post date: April 26, 2006, 09:04 Category: Network Views: 2756 Comments
Tutorial quote: One common server bottleneck is DNS lookups. Many common server tasks such as from looking up hostnames to write Apache logfiles and processing incoming mail require the use of DNS queries. If you're running a high-traffic system it might be useful to cache previous lookups.
FreeBSD

Creating A DNS Cache With djbdns

Post date: May 5, 2007, 22:05 Category: Installing Views: 3755 Comments
Tutorial quote: Building a local DNS cache will speed up your internet connection since the time for the translation job (converting domain names into IP addresses) will become negligible with the assumption that the DNS cache gets the information from the parent DNS.
Linux

How To Patch BIND9 Against DNS Cache Poisoning (Debian/Fedora/CentOS)

Post date: July 29, 2008, 09:07 Category: Security Views: 3615 Comments
Tutorial quote: Dan Kaminsky earlier this month announced a massive, multi-vendor issue with DNS that could allow attackers to compromise any name server - clients, too. These two articles explain how you can fix a BIND9 nameserver on Debian Etch and Fedora/CentOS so that it is not vulnerable anymore to DNS cache poisoning.

http://www.howtoforge.com/how-to-patch-bind-to-avoid-cache-poisoning-debian-etch
http://www.howtoforge.com/how-to-patch-bind-to-avoid-cache-poisoning-fedora-centos
Unix+clones

Installing and securing Squid

Post date: March 13, 2006, 15:03 Category: Software Views: 4798 Comments
Tutorial quote: Squid is a high-performance proxy caching server for web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid supports SSL, extensive access controls, and full request logging. By using the lightweight Internet Cache Protocol, Squid caches can be arranged in a hierarchy or mesh for additional bandwidth savings.

After the installation and base configuration of squid we will add another layer of security by chrooting it.
Debian

How To Install And Use The djbdns Name Server On Debian Etch

Post date: January 24, 2008, 11:01 Category: Installing Views: 3025 Comments
Tutorial quote: djbdns is a very secure suite of DNS tools that consists out of multiple parts: dnscache, a DNS cache that can be used in /etc/resolv.conf instead of your ISP's name servers and that tries to sort out wrong (malicious) DNS answers; axfrdns, a service that runs on the master DNS server and to which the slaves connect for zone transfers; and tinydns, the actual DNS server, a very secure replacement for BIND.
Debian

Make Browsers Cache Static Files With mod_expires On Apache2 (Debian Squeeze)

Post date: March 10, 2011, 11:03 Category: Installing Views: 2723 Comments
Tutorial quote: This tutorial explains how you can configure Apache2 to set the Expires HTTP header and the max-age directive of the Cache-Control HTTP header of static files (such as images, CSS and Javascript files) to a date in the future so that these files will be cached by your visitors' browsers. This saves bandwidth and makes your web site appear faster (if a user visits your site for a second time, static files will be fetched from the browser cache). This tutorial was written for Debian Squeeze.
Solaris

Configuring Apache

Post date: April 13, 2005, 05:04 Category: Network Views: 4123 Comments
Tutorial quote: Apache can respond to browser requests from machines on your local network (i.e. an "Intranet" Web server) or from the Internet. The installation of the Solaris OS installed and set up most of the necessary Apache files. As a result, if you want to use your system as a Web server you only need to modify one file.
Lintrack

Lintrack As A LAN Gateway And An OpenVPN Bridge

Post date: May 9, 2007, 22:05 Category: Installing Views: 6593 Comments
Tutorial quote: This tutorial will guide you through the installation and configuration of Lintrack, a GNU/Linux distribution specialized in networking tasks. We will give two LANs access to the internet along with DHCP and DNS cache servers, and then we will connect our networks using OpenVPN in bridging mode. You should be running all these in well under an hour, thanks to the unified configuration interface of Lintrack.
eBox

Using eBox As A Gateway: Firewall, Traffic Shaping, HTTP Proxy And More

Post date: June 11, 2010, 12:06 Category: Installing Views: 5637 Comments
Tutorial quote: eBox Platform is the Linux small business server that allows you to manage all your network services like firewall, DHCP, DNS, VPN, proxy, IDS, mail, file and printer sharing, VoIP, IM and much more. These functionalities are tightly integrated, automating most tasks, avoiding mistakes and saving time for system administrators. This article will show you step by step how to use eBox as a Gateway, featuring network configuration, load balancing between two Internet connections with WAN failover and multigateway rules for policy routing, traffic shaping, DHCP and DNS cache for the LAN network and HTTP proxy with different content filtering policies and antivirus.
Debian

Running WordPress On Nginx (LEMP) on Debian Squeeze/Ubuntu 11.04

Post date: September 1, 2011, 08:09 Category: Installing Views: 2870 Comments
Tutorial quote: This tutorial shows how you can install and run a WordPress blog on a Debian Squeeze or Ubuntu 11.04 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). In addition to that I will also show you how you can use the WordPress plugins WP Super Cache and W3 Total Cache with nginx. nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files.
Web-based applications and online marketing solutions - LumoLink