March 6, 2009 4:45 PM
Posted by: Troy Tate
bandwidth,
capacity,
network band,
network speed,
throughputThere is often a misunderstanding of what network speed is versus capacity. The speed of data transfer is not just a function of the capacity (bandwidth) of the link, but of the distance between the endpoints. To find distances: Go to
February 23, 2009 4:20 PM
Posted by: Troy Tate
House,
identity management,
IP address management,
ISP,
Law,
logging,
Security,
Senate,
service providersThere is a recent bill introduced in both the House and Senate to strengthen current legislation addressing online child...
February 19, 2009 1:47 PM
Posted by: Troy Tate
education,
ethereal,
network analysis,
packet analysis,
packet capture,
protocol analysis,
tcp/ip,
trace files,
training,
wiresharkLaura Chappell (the Viral Bitgirl) has announced that Sharkfest 09 registration is open and all registered attendees get a FREE AIRPCAP ADAPTER (US $198)! Sharkfest is the...
January 29, 2009 9:13 PM
Posted by: Troy Tate
Cisco,
LAN,
malware,
Microsoft,
network analysis,
network monitor,
network troubleshooting,
pstools,
Routers,
Security,
Sysinternals,
toolkit,
troubleshooting,
WANMy previous posting was meant to help you determine the source of potentially dangerous...
January 26, 2009 7:14 PM
Posted by: Troy Tate
activity,
Firewalls,
graph,
internet,
malicious activity,
malware,
network,
network security,
research,
Security,
Subnet,
WWWFor those of you who manage your own network, you have to consider the strength of the firewall at your network perimiter, the knowledge and skills of those who manage it. You also have to provide technology that can help protect your mobile users. Part of building that secure environment is...
January 9, 2009 4:38 PM
Posted by: Troy Tate
Microsoft,
Microsoft Exchange,
network monitor,
OSI model,
patches,
protocol analysis,
SMTP,
tcp,
wiresharkRecently we had an issue at a site where outbound messages larger than 1MB were backing up in the outbound message queue. The messages were tagged with a 421 4.4.2 Connection dropped error. This was a puzzling issue since the smart relay host was on the local LAN, and in fact, on...
January 6, 2009 4:45 PM
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,
websiteSometimes 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
December 10, 2008 1:33 PM
Posted by: Troy Tate
analysis,
education,
howto,
IT education,
Metrics,
Monitoring,
network analysis,
Networking,
packet capture,
performance monitoring,
reporting,
tools,
troubleshooting,
wireshark
December 10, 2008 1:19 PM
Posted by: Troy Tate
anti-virus,
awareness,
documentation,
education,
howto,
IT education,
malware,
Networking,
online identity,
patching,
professional,
risk,
tools,
troubleshooting,
web,
websiteI recently came across the computer forums on Craigslist. I had heard of Craigslist previously but was not aware of the significant scope of what it offers besides classified ads. I'm not suggesting that folks leave ITKE to the Craigslist computer forums for support - far from that.
I have been...
