PUBLIC MARKS from ERSWeb with tag network

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Robocopy, or "Robust File Copy", is a command-line directory replication command. It was available as part of the Windows Resource Kit, and introduced as a standard feature of Windows Vista, Windows 7 and Windows Server 2008. Robocopy is designed for reliable mirroring of directories or directory trees. It has features to ensure all NTFS attributes and properties are copied, and includes additional restart code for network connections subject to disruption.

Does setting the correct time on a router really matter? Actually, it does. In this edition of Cisco Routers and Switches, David Davis reviews the benefits of setting the correct time on your router, and he walks you through the three-step process to configure the correct time.

It's critical that all devices on an organization's network display the accurate time and date. If they don't, things can go wrong in a hurry. David Davis explains why Cisco devices need to use Network Time Protocol (NTP) for their time synchronization needs, and he tells you how to configure NTP on your Cisco devices.

The largest U.S. carriers -- including AT&T, Qwest and Sprint -- are deploying special-purpose, intrusion-detection systems dubbed Einstein boxes in their networks as part of an 18-month-old effort to tighten security on federal networks.

I recently discovered memcached which is a distributed, object caching system originally developed by Brad Fitzpatrick of LiveJournal fame. You can think of memcached as a giant hash table that can run on multiple servers which automatically handles maintaining the balance of objects hashed to each server and transparently fetches/removes objects from over the network if they aren't on the same machine that is accessing an object in the hash table. Although this sounds fairly simple, there is a lot of grunt work in building a distributed object cache which handles data partitioning across multiple servers and hides the distributed nature of the application from the developer. memcached is a well integrated into the typical LAMP stack and is used by a surprising number of high traffic websites including Slashdot, Facebook, Digg, Flickr and Wikipedia. Below is what C# code that utilizes memcached would look like sans exception handling code

This article walks you through the process of setting up an authoritative time server for a Windows Server 2003-based network running Active Directory. The article outlines procedures for syncing to both an internal and external time source, and also lists additional resources for configuring the Windows Time service and troubleshooting time synchronization problems.

You've seen the lists of Top X great Firefox extensions on other sites, but they all have a different 10 favorites. So how do you decide which are worthy of your attention? We bring you THE definitive list of the 20 best culled from all the top 10 lists we could find.

Tcpdump is the premier network analysis tool for information security and networking enthusiasts and/or professionals. In my own primer I cover tcpdump basics; if you're interested in becoming familiar with the application via an introduction, I suggest you check it out first. Here I'm simply going to give a number of recipes that you're likely to find useful during your day to day activities. They will range from common, general captures to complex filters designed to look for a number of unique traffic types.

Many new admin or Linux users get frustrated when their remote Linux box is not accessible dues to network connectivity. In this article I will try to provide tools and information about how to diagnose network configurations. You can try these tips/tools to diagnose an issue of Linux network connectivity to remote or local servers.

20 most useful career sites for IT professionals

The port numbers are divided into three ranges: the Well Known Ports, the Registered Ports, and the Dynamic and/or Private Ports. The Well Known Ports are those from 0 through 1023. DCCP Well Known ports SHOULD NOT be used without IANA registration. The registration procedure is defined in [RFC4340], Section 19.9. The Registered Ports are those from 1024 through 49151 DCCP Registered ports SHOULD NOT be used without IANA registration. The registration procedure is defined in [RFC4340], Section 19.9. The Dynamic and/or Private Ports are those from 49152 through 65535 A value of 0 in the port numbers registry below indicates that no port has been allocated.

Beginners guide to DFind command syntax.

If you have ever been a system administrator or network manager, you can appreciate a tool that allows you to efficiently check the health of various components of your network. Receiving alerts to problems the moment they happen lets you solve them as quickly as possible and prioritize your time effectively.

OpenDNS is a safer, faster, smarter and more reliable way to navigate the Internet. Theservice is free and requires nothing to download.

Easy to use VPN software