On the Internet, where routers, switches, computers, and other devices are intricately intertwined, packets must pass through many routers before they can reach the destination server. However, if a ...

I'm looking for some clarity on the inner workings of traceroute and ping record-route. Here's my understanding.<BR><BR>Traceroute sends UDP (ports 33434-33534) packets with a destination IP as ...

Been running a series of Traceroutes recently to various websites. Noted all my Traceroutes go through a standard IPv4 address before hitting the ISP's IPv6 'wall' of addresses. Been trying to find ...

In the previous lesson, we reviewed the ICMP (Internet Control Message Protocol). It’s the basis for the applications ping and traceroute. If you recall from that lesson, when you ping an address with ...

This column is the third in a series dedicated to one of my favorite subjects: troubleshooting. Because my column generally is aimed more at tips and tricks and less on philosophy and design, I don't ...

The most important networking command in Linux might be ping. This command lets you check if a remote machine is responding to your requests. You can use ping to check if your internet connection is ...

The ifconfig and netstat commands are incredibly useful, but there are many other commands that can help you see what’s up with you network on Linux systems. Today’s post explores some very handy ...