# November meetup minutes
We have around 40 + head count. As usual we started with an introduction.
We have more first timers.
Vijay gave an intro to Chennaipy and what the meetup is all about.
Meetup is more like networking with people who are like minded.
## Talk 1 Introduction to scapy
Rengaraj started the topic by giving a small introduction to the network OSI layer.
Then he went on to explain how a network flows for https request using scapy.
He did a packet capture and started explaining the packets.
1. When explaining DNS there were some questions /etc/hosts file, he actually dont know how hosts file is used as dns resolver.
2. He was unable to complete TCP handshake, ssl handshake and then application data transfer because the time was already up.
## Talk 2 Python Interning
Suresh explained about the introducing feature in python.
1. How it can be used to optimize dictionary lookup faster.
2. he explicitly intern strings using the intern method.
## Networking tea break
Before the break Vijay asked the audience to come forward and say their domain expertise so that people who want to discuss can meet them and discuss during the networking tea break.
## Talk 3 Air pollution talk
Arthi presented a topic how deepawali affected the air pollution using sentinel api
# Talk 4 Embrace the grind
Shrayas gave a quick 10 mins talk on why we should try deploying things from scratch to face all the issues before moving to frameworks or any tools to make our life easy and not facing issues.
He insisted on a quote that "If you don't see the problem, you will never appreciate the solution".
## Closing notes
Praveen wanted to give a lightning talk. We asked him to move the talk since there was no time.
1. Rengaraj Thanked all the speakers and audience.
2. He also thanked the volunteers Arthi and Dhanush for promotion
3. He asked people to subscribe to mailing lists and linkedin.