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That's a subject list that reads more like a history of the topic. For example, PGP was popular some time ago, but has since waned as major email providers have implemented encryption.

The biggest area to know is how public-key infrastructure (PKI) cryptography works, and how it is different from symmetric cryptography.

#34

Homework Help / Studying computer network secu...

Last post by networkloser - May 17, 2025, 07:27:53 AM

Network Security: Types of Computer Security, Types of Security Attacks, Principles of cryptography, RSA Algorithm, Digital Signatures, securing e-mail (PGP), Securing TCP connections (SSL), Network layer security (IPsec, VPN), Securing wireless LANs (WEP), Firewalls

This is the part of 20 subject syllabus for exam. It's subjective exam meaning answers are written instead of tick marks.

I am starting to learn this. What should I be learning in digital signatures? That benefit me in the long run as well as help me in exam? What about PGP? What practical scenarios can I implement on my own? Or is it left untouched because there're APIs that handle it for me these days? I'd love your insights on any of the topics.

#35

Routing and Switching / Re: Unusual Issue with SR3120 ...

Last post by icecream-guy - April 11, 2025, 08:15:30 AM

Quote from: CiscoWizard on April 10, 2025, 12:19:21 PMThen I probably shouldn't tell you about the Wellfleet and Bay Networks routers we have in our data center.

Please do, my hacker friends are much interested in your network design and details.

#36

Routing and Switching / Re: Unusual Issue with SR3120 ...

Last post by CiscoWizard - April 10, 2025, 12:19:21 PM

Then I probably shouldn't tell you about the Wellfleet and Bay Networks routers we have in our data center.

#37

Routing and Switching / Re: Unusual Issue with SR3120 ...

Last post by config t - April 10, 2025, 09:04:06 AM

Wow. The Avaya sticker they put over the Nortel logo must have fallen off. 10-years ago Nortel Networks had already ceased to exist.

#38

Routing and Switching / Re: Unusual Issue with SR3120 ...

Last post by CiscoWizard - April 08, 2025, 04:50:37 PM

We've kept it connected in a lab environment, but we've yet to have that same problem. The configs appear to be matched so we weren't thinking it was a configuration issue. The age of the device seems to be the only explanation people have come up with, which I suppose is entirely possible. I've just been hoping it is something that can be solved to fix the current device. I'd still like to replace it with something newer, but it would still be nice to know it was something other than age. That's such a boring solution.

#39

Security / Re: RADIUS CoA

Last post by config t - April 08, 2025, 04:35:02 PM

From a practical standpoint "simple and easy-to-maintain" is the way forward with this particular customer. Boundary FW is managed by someone else, other than VTY all of the ACLs live on the core, no east-west FW, and add to that a regular personnel rotation which makes consistent reliable skill sets a dubious proposition.

Personally, I'm a fan of object-groups and do have another customer where the PACL use case is feasible. I just wish they could make decisions faster.

#40

Routing and Switching / Re: Unusual Issue with SR3120 ...

Last post by Otanx - April 08, 2025, 03:54:23 PM

If you swap in the spare does it have the same problem?

-Otanx

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