Back from the holidays only to find my Windows Profile gone missing at work. One of the annoying things was to add all my remote hosts back onto WyseTerm. While the bad news is that there is no single file (which one would expect) that maintains this list, the good news comes in the form of Windows Registry. Yes, the WyseTerm host information is stored in Windows Registry and can be exported from the registry on to a new profile or other users profile.
The WyseTerm Host information, also known as the Common Address Book can be exported from the Windows Registry and then imported onto the new users profile as follows:
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With Spanning Tree Protocol, messages from a connected device always takes the least cost path to the Root Bridge. The least cost path also called as Link Cost or Port cost is the lowest cost path of the one or more paths available from the device to the root bridge. Each link type has its own default costs which is used by the Spanning Tree Protocol (STP) to calculate the least cost path.
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Advanced Subnet Calculator from SolarWind is a simple but powerful easy to use Subnet Calculator for Windows.
Advanced Subnet Calculator can perform
whois lookups for hostnames and Domain Names
IPWhois Lookup for the provided IP Address
Classful Subnet Calculator
Claseless Inter-Domain Routing (CIDR) Calculator
Address Generator for a given IP Address and Subnet Mask
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RANCID is Really Awesome New Cisco Config Differ. AS its name implies, RANCID monitors network device configuration, including software and hardware and uses CVS (Concurrent Version System) or Subversion to maintain history of changes. RANCID is simple and is easy to use.
The same very functionality of RANCID can be used as a backup system for Network device config backup system or even a config change alert system as it can email changes from previous saved configurations. All this RANCID does by logging on to a network device using Telnet or SSH and runs various show commands to grab config changes (hardware & Software), send alert emails of any changes, format the info and commit to the CVS system.
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Packet Trap pt360 Tool suite is a Windows based free Network Diagnostic tools suite and a Network Monitoring tool. Packet Trap has a nice Dashboard with drag and drop dashboard components.
At the first look, Packet Trap is very impressive, simple, easy to use, easy to understand, simple and easy navigation and menu options. All the diagnostic tools are graphic and provides a great advantage as a one stop shop for most of the Network troubleshooting. What is even more impressive is that the monitoring system being integrated into a Network Diagnostic suite which allows an admin to monitor and troubleshoot all from one place and they all can export the results in nice HTML format.
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Sometimes, there is a need to have more than one IP Addresses assigned to a PC or a Server. If you have multiple services running on a server like a webserver and a mail server and want to assign each of these services seperate IP Addresses the Multiple IP addresses will help. While this need not necessarily require to have more than one Network Interface Card (NIC) on the server.
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ICMP redirect is a type 5 ICMP error message sent by a gateway router to a sending host informing of an optimal alternate route to the destination host and to update its routing table with the new host route to the target destination host.
ICMP Redirects being an inefficient way to update a hosts routing table of an optimal route to a target destination can cause security issues. A malicious hacker with little knowledge about the network can launch a Denail of Service (DoS) attack on a host on the network.
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