MAIN Topic: Network Time Protocol (NTP) & Linux.

Doctor Stratum:
Or How I Learned to Stop Worrying and Love the Clock
Presenter: Andrew Denner

Ever had a server wake up thinking it's January 1st, 1970?

That's not just a bad hangover -- it's a recipe for:
broken certificates,
failed logins, and
confused applications.

In this talk, we'll explore
how Linux keeps time, from NTP and chrony to stratums, time zones, and
the infamous "watch problem."

Whether you're syncing with GPS, hardening
security, or just trying to keep your logs honest, you'll leave knowing
how to make your systems tick like clockwork -- all without needing 1.21
gigawatts.

THE ABOVE MAIN talk starts at ~7:15pm CDT

It is immediately preceeded by
~7:00pm cdt Announcements

All is preceeded by the below tutorial starting at
6:30pm cdt.
BASIC Tutorial: PCAPdroid & 3 other Android Apps for Network Troubleshooting. Presenter: Ken Johnson

I will review four Android Apps that I have used for Network Troubleshooting. I will present an overview of their features and emphasize how I have used each. With a small bonus, time permitting.

(PCAPdroid is an open-source network monitoring app for Android that allows users to inspect and analyze network traffic from other apps on their device without root access. It can:

• capture and export network packets,
• decrypt HTTPS/TLS traffic,
• identify remote IPs, countries, and ASNs,
• block malicious hosts, and
• create firewall rules.

The app can also redirect connections to a Socks 5 proxy and has features like DNS query extraction and payload inspection. ...)

==============÷

www.sluug.org/next

Every mtng is structured...6:30pm
BASIC TUTORIAL

~7:00pm Announcements & general Q&A

~7:15pm
MAIN

The URL link to instructions at the www.sluug.org home page, are posted the day prior to this remote ZOOM meeting. The "next" link is called "linked here". You may have to refresh your browser after each time you check.

ONLINE MEETINGS ONLY until further notice.
ONLINE session will use remote video software.
CONNECTION instructions will be on the www.sluug.org web page and our mailing lists. Note that your browser cache may need to be refreshed each time you check the above web page for the instructions. We will open the remote session at about 6:00 PM, so that you can join early to test your microphone, screen and video sharing.

Details will be published on https://www.sluug.org/ when available.