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Debian

Setting Up Network RAID1 With DRBD On Debian Squeeze

Post date: August 23, 2011, 07:08 Category: Installing Views: 2908 Comments
Tutorial quote: This tutorial shows how to set up network RAID1 with the help of DRBD on two Debian Squeeze systems. DRBD stands for Distributed Replicated Block Device and allows you to mirror block devices over a network. This is useful for high-availability setups (like a HA NFS server) because if one node fails, all data is still available from the other node.
Debian

Server Monitoring With Icinga On Debian Squeeze

Post date: August 25, 2011, 07:08 Category: Miscellaneous Views: 3197 Comments
Tutorial quote: Icinga is an enterprise grade open source monitoring system which keeps watch over networks and any conceivable network resource, notifies the user of errors and recoveries and generates performance data for reporting. It is a fork of Nagios. This tutorial explains how to install Icinga on a Debian Squeeze server to monitor this server and another Debian Squeeze server.
OpenSUSE

Encrypt-Decrypt files using mcrypt on OpenSuse

Post date: January 27, 2009, 07:01 Category: Security Views: 4194 Comments
Tutorial quote: MCrypt is a replacement for the old crypt() package and crypt(1) command, with extensions. It allows developers to use a wide range of encryption functions, without making drastic changes to their code. It allows users to encrypt files or data streams without having to be cryptographers. Above all, it allows you to have some really neat code on your machine. :)

The companion to MCrypt is Libmcrypt, which contains the actual encryption functions themselves, and provides a standardized mechanism for accessing them.
Linux

Replacing A Failed Hard Drive In A Software RAID1 Array

Post date: January 30, 2007, 17:01 Category: System Views: 4540 Comments
Tutorial quote: This guide shows how to remove a failed hard drive from a Linux RAID1 array (software RAID), and how to add a new hard disk to the RAID1 array without losing data.
Linux

Filesystem Encryption Tools for Linux

Post date: May 28, 2007, 00:05 Category: System Views: 4275 Comments
Tutorial quote: Crypto filesystems keep your data safe – even if someone steals your computer.Linux offers a number of encrypted filesystem options – each with a different approach to the encryption problem.Encrypted filesystems may be overkill
for family photos or your résumé, but they make sense for network-accessible servers that hold sensitive business
documents, databases that contain credit-card information, offline backups, and laptops.
OpenSUSE

Nessus Vulnerability Scanner in openSUSE

Post date: August 23, 2008, 22:08 Category: Security Views: 4150 Comments
Tutorial quote: The Nessus vulnerability scanner, is the world-leader in active scanners, featuring high speed discovery, configuration auditing, asset profiling, sensitive data discovery and vulnerability analysis of your security posture. Nessus scanners can be distributed throughout an entire enterprise, inside DMZs, and across physically separate networks. Nessus can also be used for ad-hoc scanning, daily scans, and quick-response audits.
Unix+clones

Squeeze Your Gigabit NIC for Top Performance

Post date: June 25, 2005, 01:06 Category: Optimizing Views: 5078 Comments
Tutorial quote: Many new workstations and servers are coming with integrated gigabit network cards, but quite a few people soon discover that they can't transfer data much faster than they did with 100 Mb/s network cards. Multiple factors can affect your ability to transfer at higher speeds, and most of them revolve around operating system settings. In this article we will discuss the necessary steps to make your new gigabit-enabled server obtain close to gigabit speeds in Linux, FreeBSD, and Windows.
Ubuntu

Monitoring Network Latency With Smokeping (Ubuntu 9.04)

Post date: July 16, 2009, 11:07 Category: Installing Views: 8531 Comments
Tutorial quote: This guide shows how to install and configure Smokeping on Ubuntu 9.04 to monitor network latency. SmokePing is a deluxe latency measurement tool. It can measure, store and display latency, latency distribution and packet loss. SmokePing uses RRDtool to maintain a longterm data-store and to draw pretty graphs, giving up to the minute information on the state of each network connection.
Unix+clones

MySQL Master Master Repliction

Post date: September 18, 2006, 14:09 Category: Benchmarks Views: 6616 Comments
Tutorial quote: When we need to replication mysql servers with each other some time for synchronizing for HA. In my case I need the mysql servers for which two masters must be synchronized with each other so that if any one drops down, other could take care of the one and data must not be lost. Similarly when one goes up, it will still be used as slave for the live one.

Here is a basic step by step tutorial, that will cover the mysql master and slave replication and also will describe the mysql master and master replication.
Ubuntu

Perfect Setup Of Snort + Base + PostgreSQL On Ubuntu 6.06 LTS

Post date: April 25, 2007, 21:04 Category: Installing Views: 4831 Comments
Tutorial quote: This tutorial describes how you can install and configure the Snort IDS (intrusion detection system) and BASE (Basic Analysis and Security Engine) on an Ubuntu 6.06 (Dapper Drake) system. With the help of Snort and BASE, you can monitor your system - with BASE you can perform analysis of intrusions that Snort has detected on your network. Snort will use a PostgreSQL database to store/log the data it gathers.
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