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December 15, 2009  9:38 PM

Use NMap to quickly scan a large subnet for MAC or IP addresses – even firewalled systems!



Posted by: Troy Tate
ARP, arp scan, education, network scan, network tool, nmap, ping, tool, utility

One of my favorite tools to manage a population of network hosts is the excellent tool NMap. It can easily and quickly be used to scan a large subnet for live hosts. I recently scanned a /16 or 65,535 hosts subnet in about 30 minutes with NMap detecting...

September 25, 2009  3:15 PM

Performance monitoring dashboard – fping and URL ping



Posted by: Troy Tate
application management, application performance, icmp, network design, network diagnosis, network management, network performance, performance analysis, ping, url ping, web services, webserver

In part one of this series, I discussed ping and pathping. These tools are good for some interactive realtime testing. However, what do you do when you...


August 28, 2009  4:57 PM

Performance monitoring dashboard – designing and instrumentation



Posted by: Troy Tate
application management, application performance, network design, network diagnosis, network management, network performance, pathping, ping

One of my biggest challenges as a network manager is when users cry "the network is slow". Some of you may have tools available to you where you can instantly dig in and see what the user might be seeing. There are some vendors out there with application and network monitoring tools.


January 6, 2009  4:45 PM

Swiss-army knife for public network testing



Posted by: Troy Tate
connectivity testing, crypto, crypto testing, cryptography, dns, hash, icmp, ping, public network, ssh, SSL, tcp, testing, toolkit, tools, tracert, typosquatting, udp, website

Sometimes it is necessary to test connectivity outside of your private company network. There are several resources I use. I will share a couple of those with you in this posting. One of my favorite and most frequently used sites is

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