Problem solve
Get help with specific problems with your technologies, process and projects.
Problem solve
Get help with specific problems with your technologies, process and projects.
Simple WMI tricks for AD administrators
Windows Management Instrumentation (WMI) can be a great asset for Active Directory admins. Expert Gary Olsen offers useful WMI tips and tricks for locating and gathering information from objects in an enterprise. Continue Reading
IBM Tivoli Storage Manager vs. traditional backup
Learn about the architectural concepts behind IBM's Tivoli Storage Manager backup software and the main differences with what are often referred to as "traditional" backup products. This piece is the first of a series of four on Tivoli Storage ... Continue Reading
Microsoft's daylight-saving time (DST) patch -- Does it matter to AD?
Who would've thought that expanding the dates of daylight-saving time would cause so many problems for IT administrators? Expert Gary Olsen analyzes what the changes mean to Active Directory regarding domain operations. Continue Reading
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CICS trace: Getting started, formatting and externalizing
CICS expert Robert Crawford describes the handy CICS trace tool and gives code for externalizing its output. Continue Reading
Diskpart utility scans for newly added disks
Use the Windows Diskpart utility to scan for newly added disks, instead of Windows' Disk Administrator tool. Continue Reading
Block and file access unite with multiprotocol storage
This tip looks at the pros and cons, as well as when and where to deploy multiprotocol storage, which is also referred to as "unified" storage.Continue Reading
Beware of bare linefeeds in Exchange Server email
A bare linefeed is a single linefeed character that isn't preceded by an ASCII carriage return. In some instances, virus scanners or security appliances will insert bare linefeeds into an Exchange Server email and cause delivery failures.Continue Reading
Running Windows as a VM on Linux with VMware Server
If you don't want to spend money on an expensive Citrix setup for running Windows and Linux, then try running Windows as a virtual machine (VM) on Linux with VMware Server.Continue Reading
Hard zoning vs. soft zoning
SAN expert Greg Schulz explains the difference between hard and soft zoning.Continue Reading
Migrating Microsoft Internet Information Server to Apache on Red Hat Linux
If you're moving to Apache server from Microsoft Internet Information Server, be aware that this migration involves more than just copying files. In this tip, users will learn how to move a site from IIS to Apache on Red Hat, although this is ...Continue Reading
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Calculating costs of data center cabling infrastructure
In part two of our series on data center cabling decisions, data center infrastructure expert Carrie Higbie offers a cost calculator for determining TCO on a cabling project.Continue Reading
Configuring DNS server properties
When followed correctly, DNS is fairly simple to use in Active Directory. However, it's even easier when you understand certain configurations. Expert Gary Olsen breaks down the DNS complexities that every admin should know about.Continue Reading
Half duplex vs. full duplex Ethernet 10BASE-T topologies
Ever wonder why half duplex Ethernet 10BASE-T topologies have a slower data transmission rate than full duplex Ethernet 10BASE-Ttopologies? Find out in this expert response by Lindi Horton.Continue Reading
What are the fundamental principles of CDMA?
In this Q&A, our expert, Lindi Horton gives us an explanation of what CDMA is and what some of its fundamental principles are.Continue Reading
IP addressing and subnetting: Calculate a subnet mask using the subnet's formula
IP addressing and subnetting are an important part of networks. Learn how the subnet's formula works and why it's important to know how to calculate the subnet mask "longhand."Continue Reading
Duplex mismatch
What is duplex, and what is the difference between half and full duplex? What is a duplex mismatch? How can autonegotiation help or hurt your network? How can you resolve duplex conflicts? In this tip, David Davis helps networking engineers and ...Continue Reading
NFPA 75: Raised floor fire protection
Utilizing separate suppression 'zones' for both above floor and sub-floor spaces is a common practice in areas where the subfloor contains a significant hazard/fuel load.Continue Reading
Is storage automation right for you?
This tip covers what storage automation is, and what it is not, and what it means to you. Also, you will learn why you should, or should not implement a storage automation product.Continue Reading
How to create a secure login page using ASP.NET
A secure ASP.NET login page is easier to create than one might assume. Expert Dan Cornell explains how to use authentication and authorization to ensure your login page is safe.Continue Reading
Why do we need the MAC address if all Ethernet connections are done via IP address?
The pros and cons of IPsec
What is difference between a WINS server and a DNS server?
How do I open port 177 on my router so that other clients can get a GUI display of my server remotel
How do I set up two or more wireless adapters on the same computer to work together?
What is a collision domain? How does replacing a hub with a switch affect collision?
Since DNS uses UDP instead of TCP, if a packet is lost, there is no automatic recovery?
Data center raised floors and ceiling height
In this question, Bob McFarlane explains the benefits and drawbacks to different data center designs pertaining to cooling and airflow.Continue Reading
Can I connect two networks, one wired, one wireless, so that I can access the Internet through the s
I need help adding a central MAC address authentication server to our current WLAN.
What are the basic features of CIDR and what are its advantages and disadvantages compared to IPv6?
Focus Windows port scanning with the netscan command
How to use the netscan command to focus Windows port scanning.Continue Reading
What costs I can expect when designing A LAN? How can I keep costs to a minimum?
What is a LAN and how does it work?
Why can't I access my folders on the server through the VPN?
I need a very basic VPN solution to connect two offices to allow two servers to talk to one another.
What are the differences between PVC, riser and plenum rated cables?
Can you explain the ICMP ping test?
How can we say TCP is a reliable protocol?
How can I find a good job if I have my CCNA but now experience with Cisco routers?
Can you assign an IP address ending in .0 or .255?
Learn how to assign an IP address ending in .0 or .255 from networking fundamentals expert Chris Partsenidis in this Q&A.Continue Reading
What is a network segment? Is a network segment the same as an Ethernet segment?
When I use the Microsoft Windows VPN Client, what kind of VPN tunnel is created?
What are the minimum and maximum sizes of an ICMP packet?
What is the difference between an IPsec tunnel and a normal tunnel, and what is the bandwidth of eac
Can features such as VPN pass-through on routers be abused to dump traffic onto a NAT'd LAN?
How do the clients in a WLAN communicate with the AP (Access Point) based on IP in the Network Layer
What are the top five companies that are providing enterprise level WLAN products and solutions?
How does the sender of a data packet know the IP address of the receiver? Part 1
What is required to implement SSL with encryption for TN3270 session on CS for OS/390 V2R10?
What determines the speed of a LAN that consists of 10 Mbps and 100 Mbps devices?