Kerry Cordero
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Home» Articles posted by Kerry Cordero

Cisco Transceiver Modules

Posted on April 17, 2012 by Kerry Cordero in Routing & Switching

Listed below are all the links to Cisco’s transceiver modules pages.  On these pages you will find cables lengths for all fiber optics supported.  So if you want to know if a specific fiber is support or long enough, go to the appropriate link below. Cisco CWDM GBIC and SFP Solution Cisco Dense Wavelength-Division Multiplexing [...]

cables, module_wics View Post

Cisco GSS 4492R OS Upgrade

Posted on December 8, 2011 by Kerry Cordero in Application Networking Services

This post will go through the steps to upgrade a Cisco GSS 4492R. I’m assuming you already went to Cisco’s website and downloaded the .upg file.

cisco, gss, ios, upgrade View Post

Juniper SSG Basic Configuration

Posted on December 7, 2011 by Kerry Cordero in Routing & Switching, Security

Juniper SSG’s are pretty easy to setup using the GUI and CLI. I am just showing you the basic commands to get the device up and running using the CLI. I’ve always liked the CLI better than the GUI.

juniper View Post

DIG DNS Tool for Windows 7

Posted on December 1, 2011 by Kerry Cordero in Laptops, Tablets, & Smart Phones, Servers & Desktops

dig (domain information groper) is a powerful DNS diagostic tool. You are basically digging into DNS. This is one of the best tools to use. At the end of this blog I will tell you why you should use this tool over nslookup. The problem is that it does not come installed on Windows. But [...]

dns View Post

Find the Faster DNS Server to Omptimize your Performance

Posted on November 23, 2011 by Kerry Cordero in Laptops, Tablets, & Smart Phones, Servers & Desktops

Yes! The wrong DNS servers can actually make a difference when browsing the internet. You want to make sure you have the fastest DNS when it comes to name resolutions. I’m assuming you know how a DNS server works. If you can use a name server that resolves the names to IP 50% faster, then [...]

apple, dns, windows View Post
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(c) 2012 Kerry Cordero