Run the command "netstat -ab" in an elevated Command Prompt, PowerShell, or Terminal window to see a list of applications and their associated ports. Checking open ports can be done using built-in ...

IntroductionDuring a security investigation, I needed to verify whether SMB (TCP/445) was being used on a Windows Server, so I am documenting the investigation method as a memo.The key point this time ...

This may be an stupid newbie question but at this point I'm ok with living with the shame. Suppose you have a situation in which you find out that some packets are never reaching your host, or at ...

JDSU has developed a new test methodology, known as RFC 6349, in collaboration with two global network operators. It was recently published by the Internet Engineering Task Force (IETF), an ...

We have already covered topics related to LANs, such as LAN Manager (NetBEUI), NetWare (IPX/SPX), and AppleTalk, and now we ...

The internet is an important tool used to exchange data and information. This process is easier than ever thanks to modern technology. TCP/IP provides reliable and secure communication across networks ...

The first step in the troubleshooting process is to check the TCP/IP configuration. The easiest way to do this is to open a Command Prompt window and enter the IPCONFIG /ALL command. Windows will then ...

GL Communications Inc. has announced that its PacketExpert—a quad port Ethernet/IP tester—has been enhanced to support the RFC 6349 framework for TCP throughput testing. To verify Ethernet/IP-based ...