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Continuous Real-time Data Protection and Disaster Recovery
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Virtualization - It's Not Just for Enterprises Anymore
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Rightsizing Blades for the Mid-market
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VMware Infrastructure 3, Planning
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 ServerWatch > Tutorials
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Tip of the Trade: Siproxd
[05/05/2008]
Escort SIP traffic through NAT with open source Siproxd.
2008 Product Excellence Awards Voting Begins
04/29/2008
Time to cast your ballot for your server room favorites. Weigh in on servers, virtualization products and more.
Tip of the Trade: Vyatta
[04/28/2008]
Looking to save on networking costs? XORP-based Vyatta makes it possible to replace expensive gear with commodity hardware at a fraction of the cost.
Tip of the Trade: Cryptmount
[04/21/2008]
Need strong file encryption for underprivileged users? Cryptmount puts a friendly face on the technology.
4 Passwords to LAMP Security
[04/15/2008]
It's easy to install a LAMP stack and throw up a dynamic Web site over a weekend -- the real toil comes in securing it. Here are four steps to help avert complacency and get you on the correct path.
Tip of the Trade: Grsecurity
[04/14/2008]
The venerable Grsecurity is one option for closing Linux security holes.
Win Server 2008 Directory Services, Read Only Domain Controllers
[04/11/2008]
If you've been concerned about hosting full-fledged domain controllers in environments that could be easily compromised, consider a Read Only Domain Controller. Microsoft recently released this bundle of standard Active Directory mechanisms as a new product feature set.
Tip of the Trade: lm-sensors
[04/07/2008]
lm-sensors make it easy to monitor computer temperatures, no matter how little you paid for your hardware.
Tip of the Trade: psad
[03/31/2008]
Turbo-charge your intrusion detection with psad, the port scan attack detector.
2008 Product Excellence Awards Nominations Process Continues
03/31/2008
There's still time, but you have to hurry. Only two weeks remain to nominate your favorite products and vendors in the ServerWatch Product Excellence Awards. Tell us who should get top honors.
Reining in Bandwidth With Squid Proxying
[03/28/2008]
SWatch Reader Favorite! Network hogs gobbling too much bandwidth? Consider throttling them with the squid caching proxy.
Tip of the Trade: SATA Storage Servers
[03/24/2008]
SCSI drives may be the toughest and most reliable, but oftentimes SATA drives are equally good. From price point to form factor and feature options, they offer a plethora of advantages.
Term of the Week: iLO
03/24/2008
Short for integrated Lights-out, iLO is an intelligent remote management processor integrated in many HP ProLiant servers that enables admins to fully control servers from remote sites as though they were local and using the server directly.
ServerWatch Product Excellence Awards Nomination Period Opens
[03/21/2008]
From midrange servers to virtualization and storage applications, now is the time to let the world in on your server room favorites: Nominate them for 2008 ServerWatch Product Excellence Awards.
Tip of the Trade: ZFS on Leopard
[03/17/2008]
Coming soon to a Mac near you -- the power of ZFS for Mac OS X Leopard is now in beta.
Term of the Week: Disaster Recovery Plan
03/17/2008
A disaster recovery plan makes arrangements for business continuity in the event of a disaster that destroys part or all of a business' resources, including IT equipment, data records and the physical space of an organization.
Win Server 2008 Directory Services, Windows Server 2008 Functional Levels Overview
[03/14/2008]
We've looked at where Directory Services have been; let's see where Windows Server 2008 is taking them.
Tip of the Trade: GRUB2
[03/10/2008]
With GRUB2, the venerable GRand Unified Bootloader for Linux and Unix has finally entered the new millennium.
Term of the Week: DIMM
03/10/2008
A DIMM, or dual in-line memory module, is a small circuit board that holds memory chips. A single in-line memory module has a 32-bit path to the memory chips, whereas a DIMM has a 64-bit path.
Integrating Tomcat with Apache
[03/07/2008]
SWatch Reader Favorite! Looking to add Java functionality to your Apache Web server? The tool of choice from the Apache Foundation is the Tomcat Java server. Learn how to install and configure Tomcat to work with your Apache server.
Tip of the Trade: IP Address Management
[03/03/2008]
IP Address Management has historically been restricted to Windows shops and organizations willing to pay in the five-figure range for the integrated network discovery tool. This is changing, now that three recent prefab open source IPAM apps have hit the market.
Term of the Week: InfiniBand
03/03/2008
Instead of sending data in parallel like PCI does, InfiniBand sends data in serial and can carry multiple channels of data at the same time in a multiplexing signal.
Back to Basics: The DHCP Relay Agent
[02/29/2008]
SWatch Reader Favorite! Among the many agents you can put to work on your Windows 2000 network is the DHCP Relay Agent.
Tip of the Trade: OpenSSH Speed Tips and Tricks
[02/25/2008]
Using public key authentication is a great way to make SSH transfers more secure. Transferring SSH identity keys can be a royal pain, however. Fortunately, ssh-copy-id, a slick utility included with OpenSSH, simplifies the process.
Term of the Week: NOC
02/25/2008
A NOC, or network operations center, is the physical space from which a typically large telecommunications network is managed, monitored and supervised.
Optimizing Apache Server Performance
[02/22/2008]
SWatch Reader Favorite: Squeezing the most performance out of your Apache server can make difference in how your Web site functions and the impression it makes. We look at configuration and installation, two areas where you have the most control.
Tip of the Trade: mkbar and mkgraph
[02/19/2008]
mkbar and mkgraph make it easy to draw pretty graphs from SELinux audit data.
Term of the Week: Throughput
02/18/2008
Data transfer rates for disk drives and networks are measured in terms of throughput -- the amount of data transferred from one place to another or processed in a specified amount of time.
Deploying Windows XP, Using the Windows PE
[02/15/2008]
SWatch Reader Favorite! Life is filled with challenges for a sys admin rolling out a large-scale operating system install. Windows Preinstallation Environment, a stripped-down version of the OS designed specifically for deployment, simplifies the process.
Win Server 2008 Directory Services, Functional Levels Overview
[02/14/2008]
The directory services infrastructure is a key component of Windows Server 2008. We kick off our newest series with an overview of its capabilities.
Tip of the Trade: Smartmontools
[02/11/2008]
Got S.M.A.R.T. drives? Consider adding smartmontools to test and monitor drive health as well as issue early warnings of possible failures.
Term of the Week: Fibre Channel
02/11/2008
This serial data transfer architecture was developed by a consortium of computer and mass storage device manufacturers. Fibre Channel Arbitrated Loop, the most popular standard, was designed for mass storage and other peripheral devices that require very high bandwidth.
Database Normalization
[02/08/2008]
SWatch Reader Favorite!
A poor database design can cripple an application, producing problems with data redundancy, accuracy, consistency and concurrency. Normalization reduces, if not eliminates, these problems.
Tip of the Trade: VirtualBox
[02/04/2008]
VirtualBox could easily be dubbed, 'the best virtualization program you've never heard of.' Its polish and ease-of-use set it apart from other free-of-cost, x86-based solution virtualizers.
Term of the Week: PCI Express
02/04/2008
PCI Express is an I/O interconnect bus standard that expands on and doubles the data transfer rates of original PCI. The two-way, serial connection carries data in packets along two pairs of point-to-point data lanes.
Tips and Tricks for Taming SELinux
[02/01/2008]
Using Fedora's SELinux implementation as a guide, learn how MAC security policies work in practice.
IIS 6.0 on Win 2003: Installing, Assigning, Removing Server Roles
[02/01/2008]
SWatch Reader Favorite! Learn how to install IIS 6.0 using the 'Manage Your Server' wizard as well as how to set the Application Server role on the system.
Tip of the Trade: SplashTop
[01/28/2008]
Tired of twiddling your thumbs after your computer boots up? With Splashtop, you can be up and running in as little as five seconds.
Term of the Week: SATA
01/28/2008
Often abbreviated as SATA, Serial ATA is an evolution of the Parallel ATA physical storage interface. Serial ATA is a serial link -- a single cable with a minimum of four wires creates a point-to-point connection between devices.
Get Ready for RAID-6
[01/25/2008]
RAID-6 is becoming a common way to get the most out of SATA drives. If you're considering using RAID-6, be sure your RAID controller is up to the task.
Quick Start Guide to Setting Up Active Directory
[01/25/2008]
SWatch Reader Favorite! Get Active Directory up and running successfully while ensuring your network systems retain proper Internet access.
Win 2003 High Availability Solutions, Message Queuing
[01/24/2008]
Message Queuing has become a popular option to ensure reliability. Because it uses a queue-based infrastructure, which provides message store and delivery mechanism as well as other features, applications stay up -- even when the target or intermediary systems are not.
Tip of the Trade: IPv6 and Wise DNS Configuration
[01/22/2008]
In two weeks, DNS servers will support IPv6 hosts connecting directly across the Internet without an IPv4 infrastructure buffer. What does this mean for you, and what steps can you take to ensure reliable DNS performance?
Term of the Week: NIC
01/22/2008
A network interface card, or NIC, is an expansion board inserted into a computer so the computer can be connected to a network.
Surviving the Technical Interview
[01/18/2008]
SWatch Reader Favorite! It seems there is no quicker way to strike terror in the heart of an IT professional (or aspiring IT pro) than to speak those ominous words:
'First, you'll need to pass a technical interview.'
Cutting Through the SELinux Hype
[01/17/2008]
There's a lot of buzz around Security Enhanced Linux. Much of it is incorrect. Carla Schroder explains how the operating system works and when you should use it.
Tip of the Trade: m0n0wall
[01/14/2008]
Packet filtering need not be complicated. For both power and ease of use,
consider a BSD-based packet filer, like ipfilter. When coupled with m0n0wall,
a specialized implementation of FreeBSD + ipfilter designed for routers and
firewalls, it is even easier to use.
Terms of the Week
[01/14/2008]
An index of all of the Terms of the Week that have run on ServerWatch.
Term of the Week: Clustering
01/14/2008
When two computers are connected in such a way that they behave like a single computer, they are said to be 'clustered.' Clustering is used for parallel processing, load balancing and fault tolerance.
IIS vs. Apache, Looking Beyond the Rhetoric
[01/10/2008]
SWatch Reader Favorite! IIS and Apache are the two most widely deployed Web servers. Not surprisingly, each has a loyal and vehement following. This tutorial goes beyond the noise to compare execution environments, dynamic components, security and authentication, performance, and reliability.
Tip of the Trade: Cobbler
[01/07/2008]
When Kickstart isn't enough to get your network going, consider cobbling together a network installation solution with the universal boot server, Cobbler.
Term of the Week: Firmware
01/07/2008
Firmware is a combination of software and hardware, with the software component written into read-only memory.
Configuring Apache 2.0 as a Forward Proxy Server
[01/04/2008]
SWatch Reader Favorite! A forward proxy server provides Internet access for any number of clients via a single server. Learn how to configure your Apache server to accomplish these tasks and reap the benefits.
Tip of the Trade: ZFone
[12/31/2007]
Advanced encryption has come to VoIP, with ZFone stopping sniffers in their tracks.
Term of the Week: VPN
12/31/2007
Short for virtual private network, a VPN relies on public wires to connect the nodes that make up the network.
Windows VPN Rollout Guide
[12/28/2007]
Secure connections for remote users are easy enough to provide with a Microsoft Windows 2003 VPN server. This article steps through the VPN deployment process, from the few key choices that must be made to the actual implementation.
Enabling WebDAV on Apache
[12/28/2007]
SWatch Reader Favorite! WebDAV is turning into an important tool on Apache-based servers. Learn how to enable WebDAV on your Apache server and offer services like Apple's iCal to your users.
Tip of the Trade: Fine-Tuning SpamAssassin
[12/26/2007]
SpamAssassin is a vital tool for keeping spam at bay. Its effectiveness decreases over time, however, as spammers figure out ways to elude its rules. The solution? sa-update, which lets you download (and tweak) updated rules without waiting for a SpamAssassin upgrade.
Term of the Week: SNMP
12/26/2007
Short for Simple Network Management Protocol, SNMP is a set of protocols for managing complex networks.
Tip of the Trade: Linux Firewall Builder Roundup
[12/17/2007]
Need to get a firewall up stat and don't have time to learn the ins and outs of iptables? Firewall Builder, Firestarter and Shorewall are three excellent firewall-building tools to get you started.
Term of the Week: Load Balancing
12/17/2007
Load balancing ensures processing and communications are distributed evenly across a computer network so no single device is overwhelmed.
Ubuntu Server: Kernel Comparisons and Implementation Issues
[12/13/2007]
No doubt about it, Ubuntu Server is sound in concept. It is, however, less stellar in execution. We continue our kernel comparisons and look at when to take the operating system out for a spin.
Tip of the Trade: E-mail Encryption
[12/10/2007]
PGP and GPG ensure e-mail stays between the sender and its intended recipient.
Term of the Week: CDP
12/10/2007
Short for continuous data protection, CDP refers to backing up computer data by automatically saving a copy every time changes are made to that data.
Win 2003 High Availability Solutions, Transactions
[12/06/2007]
In the quest for increased reliability and integrity, transactions, a sequence of related tasks that constitute a unit of work and pass the ACID test, make a fine complement to server clustering.
Ubuntu Server: Kernel Configuration Considerations
[12/06/2007]
The latest version of Ubuntu server edition comes with both server and desktop kernels. How do they differ, and what options are available with each?
Tip of the Trade: Solaris BrandZ
[12/04/2007]
If you're looking for an easy way to run Linux applications on Solaris and aren't ready to go whole hog with virtualization, consider Solaris BrandZ. The flexible framework lets you play host to unmodified non-native userspace application binaries.
Term of the Week: Real-Time Operating System
12/03/2007
A real-time operating system (RTOS) is an operating system developed for real-time applications. It is typically used for embedded apps on a special-purpose computer.
Tip of the Trade: Cryptsetup
[11/26/2007]
Cryptsetup is an easy and secure Linux disk encryption utility. It runs at the
block device level, which makes it possible to mix encrypted and unencrypted
partitions on the same drive.
Term of the Week: DNS
11/26/2007
Short for Domain Name System (or Service or Server), DNS is an Internet service that translates domain names into IP addresses.
Tip of the Trade: AppArmor
[11/19/2007]
SELinux has long reigned as the unchallenged champion of super-secure Linux systems. The emergence of AppArmor is changing this, as it simplifies the permissions management process.
Term of the Week: Enterprise Resource Planning
11/19/2007
Enterprise resource planning (ERP) is a business management system that integrates all facets of the business, including planning, manufacturing, sales and marketing.
Term of the Week: Backup Window
11/12/2007
In data restoration, the backup window is a predetermined amount of time in which specific data must be restored to avoid negative or damaging effects on the systems or applications that use the data.
Tip of the Trade: FileBench
[11/12/2007]
Push Solaris filesystem testing to the limit with FileBench, a comprehensive and customizable framework that measures and compares file system performance.
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