IT Trenches:

network management

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September 10, 2010  5:05 PM

Is there an orange ball in information security?



Posted by: Troy Tate
awareness, information security, infosec, malicious software, malware, network management, network security, security awareness

In Japan many retailers have what look like orange balls or waterballoons near checkouts. Bruce Schneier, a leading information security expert, recently blogged about these

September 30, 2009  1:36 PM

I resemble that award winning case study – wait, it IS me!



Posted by: Troy Tate
case study, frame relay, industry award, information security, ipsec, mpls, network management, remote access, Security, security management, SSL, ssl vpn, vpn, WAN

Have you ever wondered if vendor case studies are actually solutions to real life issues or if they are stories about compensated organizations using a particular vendor solution? Well, I am here to tell you that I know of at least one case study that is about an organization addressing real-life...


September 30, 2009  1:06 PM

Where do TCP resets come from?



Posted by: Troy Tate
application performance, network analysis, network management, network monitoring, network performance, packet capture, performance analysis, protocol analysis, tcp, udp

I recently came across an excellent article on the topic of TCP resets. TCP is a connection-oriented protocol as opposed to the connectionless nature of UDP. So, if there are TCP resets on your network, this is not a bad thing and is just inherent in the protocol. Without TCP resets, a host could...


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.


July 20, 2009  6:05 PM

Nmap v5 released – nearly 600 changes!



Posted by: Troy Tate
host scanning, host testing, network administration, network education, network management, network mapping, network scanning, network toolkit, nmap, penetration testing, security administration, security tool, utility

Fyodor has announced the release of Nmap v5. This is the first major release since 1997. There are over 600 changes in the new version. According to Wikipedia: Nmap...


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