Polishing #n4sa on traceroute:
"Determining that your organization is not responsible for that problem and informing whoever’s demanding a resolution can make your day easier. If they get pushy, remind them that the Internet is fragile and that running business over it was always a bad idea."
QUIC is a great example of the limitations of the seven layer OSI model discussed in Chapter 1. An application requests QUIC transport. QUIC is built on TLS and UDP. QUIC is the application transport, yes, but that transport is built on TCP and UDP. As the sysadmin you need to understand your application’s layers and how they fit on the network layers, but always look for more garbage nailed onto the seven layer model.
today in #n4sa #almostGotIt #nonotryagain
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"When you see 2001:db8::bd42:8975:8156:c112:80, you won’t realize the trailing :80 is a port number unless you’re checking if the author is trying to slip something past you."
Networking for System Administrators is open for sponsorships, btw. #n4sa
www.tiltedwindmillpress.com/product/n4sa...
