Here is the quick recap of what happend in Ilugc Monthly meet, Nov 8, 2025. Intro Mohan welcomed participants Participants introduced themselves Talk 0 Mohan started explaining about process isolation Explained how file system isolation of a process traditionally achieved through chroot for long time in Unix based systems Explained how modern linux have more types of process isolation including file system isolation using namespaces Explained different container systems like lxc, systemd-nspawn, docker and podman Showed that container images are nothing but root file system packed in a particular way Explained what is scratch containers and demonstrated how it can be used to reduce the container image Talk 1 Nihaal started explaining about basic security in Linux Explained how Discretionary Access Control (DAC) traditionally used to protect files and directories in Unix based systems Explained Permission bits in DAC and explained the drawbacks in DAC Introduced audiance to Mandatory Access Control (MAC) Policies and different way to implement MAC using Security Modules like AppArmor, Selinux Explained about AppArmor and how security gets implemented through its security profile files Explained about SELinux and how security get implemented through security context labels using file system’s extended attributes (xattrs) After talks discussion More participants introduced themselves Mohan provided popular FOSS news from the last week Participants had lively discussion about Debian apt Rust dependency, Archinstall script, gaming on linux, Gnome's Xorg decommission etc.

Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. For the month of November 2025, we shall meet Physically at Indian Institute Of Technology Madras (IITM), Aerospace Engineering. Registered participants arriving at IITM gates need to tell that you are there to attend “ILUGC Monthly Meet” so that IITM security will verify your details and allow you to get in.

Here is the quick recap of what happend in Ilugc Monthly meet, Oct 11, 2025. Intro Mohan welcomed participants and give intro about ILUGC Thanked the friend from IITM who helped to resume ILUGC in IITM again Talk 0 Briefly talk about what is Graphical Environment Explained wayland protocol, what is compositors, what is framebuffers and what is textures Explained how an image gets displayed Explained different types of Graphical applications Briefly explained what is pixel format and how an Image data stored in a array Talk 1 Nihaal briefly explained what is compiler and the difference between compiler and interpreter Explained about LLVM’s architecture and briefly explained about LLVM-IR language Explained compiler optimization and how it is achieved in LLVM through passes Briefly explained two simple LLVM passes The first example pass collected details about branching and saved it in a dotfile, then using xdot to show the graph diagram The second example pass collected details about function calls one function can call and saved it in a dotfile, then using xdot to show the graph diagram After talks discussion discussed about what all important events happend from the last physical meet in IITM till this physical meeting discussed about various important FOSS new from the last week Took group photo Windup

Hi, Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. For the month of October, 2025 we shall meet Physically at Indian Institute Of Technology Madras (IITM), Aerospace Engineering. Time: 15:00 (3.00 PM) IST Place: OSM: https://www.openstreetmap.org/?#map=19/12.991898/80.228289&layers=T GM: https://www.google.com/maps/search/?api=1&query=12.991861%2C%2080.22848 Talk details Talk 0 Topic: Introduction to wlroots (Backbone of Wayland Compositors) Description: In this talk we will get to know about what is Wayland, what are compositors, and generally how the Linux graphics stack works.

Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. We usually meet on the second Saturday of every month, and for the month of September, we shall meet through Jitsi on Saturday September 13, 2025 at 1400 IST. Meet Link Talk Details Talk 0 Topic: Display Managers Description: Introduction to Display Managers, what they do and why we need display manager in our Linux Desktop Environments.

Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. We usually meet on the second Saturday of every month, and for the month of August, we shall meet through Jitsi on Saturday August 9, 2025 at 1400 IST. Meet Link Talk Details Talk 0 Topic: systemd-userdb Description: Modern way to create users and groups in linux Duration: 30 minutes

Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. We usually meet on the second Saturday of every month, and for the month of July, we shall meet through Jitsi on Saturday July 5, 2025 at 1400 IST. Meet Link Talk Details Talk 0 Topic: DNS revisited Description: Let see how DNS works and what ways it was improved in recent times using DNSSEC, DNS-over-HTTPS, DNS-over-TLS etc.

Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. We usually meet on the second Saturday of every month, and for the month of June, we shall meet through Jitsi on Saturday 14, 2025 at 1400 IST. Meet Link Talk Details Talk 0 Topic: DocBook Description: Lean and usable documentation for the GNU/Linux desktop for Sphinx and other documentation builders.

Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. We usually meet on the second Saturday of every month, and for the month of November, we shall meet through Jitsi on Saturday 11, 2024 at 1500 IST. Meet Link Talk Details Talk 0 Topic: HTML Tags Description: Basic HTML Tags Duration:30min Full Name: Sugirtha Kumarasamy About Yourself: I am an MCA graduate, having 1 year experience in Programming - After a long gap trying to resume my career.

Indian Linux Users Group, Chennai [ ILUGC ] has been spreading awareness on Free/Open Source Software (F/OSS) in Chennai since January 1998. We usually meet on the second Saturday of every month, and for the month of October, we shall meet through Jitsi on Saturday 12, 2024 at 1500 IST. Meet Link Talk Details Talk 0 Topic: Custom Embroidery with Ink/Stitch Description: Short Tutorial on Digitizing with Ink/Stitch and a Discussion on challenges of Indic Alphabets Duration: 30 Minutes Full Name: Benson Muite About Yourself: Software developer based in Nairobi Kenya.