Fun With Wireshark: Packet Analysis and Ethical Hacking Part 2

This section covers hacking!

Remember: I'm taking only a sliver of the information presented to give employers a better idea of what I know and am capable of learning, not copying someone's course word from word.

You know why we don't use Telnet anymore?

Because of this. This is in clear text.

That's part of the password in clear text. You can even see commands used after telnetting in.

Remember that follow TCP command on a packet?

That's plain text. Remember to encrypt the password with the command enable secret [password] in Cisco CLI. (Can we see GRE in Wireshark?)

Bombal is using GNS 3 - Can we use Wireshark captures in Packet Tracer?

Later, packet capturing with TFTP - so we Follow UDP.

Now, with FTP, capturing the UN and PW is easy as 1-

There is no 2 and 3.

You need not even click follow on a packet, but you can if you want.

VOIP SNIPE

Skinny client control protocol is TCP - the traffic between two IP phones and a router.

Check the state of Skinny calls by clicking (Near the top) Telephony -> VoIP calls and play them.

Comments

Connecting IoT Devices to a Registration Server (Packet Tracer, Cisco)

In Packet Tracer, a demo software made by Cisco Systems. It certainly has changed a lot since 2016. It's almost an Olympic feat to even get started with it now, but it does look snazzy. This is for the new CCNA, that integrates, among other things, IoT and Automation, which I've worked on here before. Instructions here . I don't know if this is an aspect of "Let's make sure people are paying attention and not simply following blindly", or an oversight - The instructions indicate a Meraki Server, when a regular one is the working option here. I have to enable the IoT service on this server. Also, we assign the server an IPv4 address from a DHCP pool instead of giving it a static one. For something that handles our IoT business, perhaps that's safer; Getting a new IPv4 address every week or so is a minimal step against an intruder, but it is a step. There are no devices associated with this new server; In an earlier lab (not shown), I attached them to 'H

What Do You Need? [List of Offered Services]

2023 Version is here, at this handy Notion Page.

Building, Breaking, and Building A CRM with Retool

I like no- or low-code solutions to things. I've often wanted to simply push a button or move some GUI around and have the code implement itself. I've thought about building something that's like a customer relationship management (CRM) system for keeping up with my network better than my little spreadsheet where I click links and then go like something. The general idea in this CRM Development is: To have a GUI to add people to a NRM (Network Relationship Management). Attach it to a database (MySQL is what I went with eventually using Amazon Relational Database service, but you can use PostGRES, and probably others). Make sure components are connected to each other in the retool interface. This video is a good start. Watching the tutorial video, heard some SQL commands and went 'Oh no 😳" before going "Wait I know basic SQL", which is good, because you'll see. When you get set up, there's a plethora of resources you can use -- Incl

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