Running Moodle for High Concurrent Users
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The document outlines a webinar hosted by GLC Networks on using Moodle for high concurrent users, presenting an agenda that includes deployment tips, prerequisites, and live practice sessions. It details the presenter, Achmad Mardiansyah, with extensive experience in networking and training, and emphasizes their regular webinars on various tech topics. The document also provides insights into Moodle as a web-based application, including installation, maintenance, and security best practices.
Running Moodle for High Concurrent Users
- 1. www.glcnetworks.com Running moodle for high concurrent users GLC Webinar, 2 Dec 2021 Achmad Mardiansyah achmad@glcnetworks.com GLC Networks, Indonesia 1
- 2. www.glcnetworks.com Agenda ● Introduction ● Review prerequisite knowledge ● Moodle deployment ● Moodle tips ● Live practice ● Q & A 2
- 4. www.glcnetworks.com What is GLC? ● Garda Lintas Cakrawala (www.glcnetworks.com) ● Based in Bandung, Indonesia ● Areas: Training, IT Consulting ● Certified partner for: Mikrotik, Ubiquity, Linux foundation ● Product: GLC radius manager ● Regular event 4
- 5. www.glcnetworks.com Trainer Introduction ● Name: Achmad Mardiansyah ● Base: bandung, Indonesia ● Linux user since 1999, mikrotik user since 2007, UBNT 2011 ● Mikrotik Certified Trainer (MTCNA/RE/WE/UME/INE/TCE/IPv6) ● Mikrotik/Linux Certified Consultant ● Website contributor: achmadjournal.com, mikrotik.tips, asysadmin.tips ● More info: http://au.linkedin.com/in/achmadmardiansyah 5
- 6. www.glcnetworks.com Past experience 6 ● 2021 (Congo DRC, Malaysia): network support, radius/billing integration ● 2020 (Congo DRC, Malaysia): IOT integration, network automation ● 2019, Congo (DRC): build a wireless ISP from ground-up ● 2018, Malaysia: network revamp, develop billing solution and integration, setup dynamic routing ● 2017, Libya (north africa): remote wireless migration for a new Wireless ISP ● 2016, United Kingdom: workshop for wireless ISP, migrating a bridged to routed network
- 7. www.glcnetworks.com About GLC webinar? ● First webinar: january 1, 2010 (title: tahun baru bersama solaris - new year with solaris OS) ● As a sharing event with various topics: linux, networking, wireless, database, programming, etc ● Regular schedule ● Irregular schedule: as needed ● Checking schedule: http://www.glcnetworks.com/schedule ● You are invited to be a presenter ○ No need to be an expert ○ This is a forum for sharing: knowledge, experiences, information 7
- 8. www.glcnetworks.com Please introduce yourself ● Your name ● Your company/university? ● Your networking experience? ● Your mikrotik experience? ● Your expectation from this course? 8
- 9. www.glcnetworks.com Prerequisite ● This presentation is not for beginner ● We assume you already understand: ○ Computer networking ○ Linux server administration ○ PHP programming ○ Database administration/developer 9
- 11. www.glcnetworks.com 7 OSI layer & protocol 11 ● OSI layer Is a conceptual model from ISO (International Standard Organization) for project OSI (Open System Interconnection) ● When you send a message with a courier, you need to add more info to get your message arrived at the destination (This process is called encapsulation) ● What is protocol ○ Is a set of rules for communication ○ Available on each layer ● Communication consist of series encapsulation ○ SDU: service data unit (before PDU) ○ PDU: protocol data unit (after header is added)
- 12. www.glcnetworks.com Layered model (TCP/IP vs ISO) and encapsulation 12 / datagram
- 14. www.glcnetworks.com What is web application? 14
- 16. www.glcnetworks.com Web app protocol + components 16
- 19. www.glcnetworks.com Components are from different website 19
- 21. www.glcnetworks.com Static vs dynamic website 21
- 22. www.glcnetworks.com What is web server / application server? (static vs dynamic content) 22
- 23. www.glcnetworks.com Software to build web + application server ● Apache ● Nginx ● Lighttpd ● Cherooke Bundled components: ● LWDA (Linux <webserver> <database> <app engine>) ● LAMP (Linux Apache Mysql PHP) ● LNMP (Linux 23
- 25. www.glcnetworks.com What is Moodle ● Web-based application ● Language: PHP ● Database: Mysql, postgresql ● Developed since early 2000 ● Free and Opensource ● Lots of plugins ● Used by many education institutions ● Easy installation ● Easy maintenance / upgrade 25
- 27. www.glcnetworks.com Moodle tips: source code ● Better use installation via GIT ● Easier to rollback ● Easier to upgrade (git pull) ● Easier to switch version (git branch) 27
- 28. www.glcnetworks.com Moodle tips: use tiered architecture ● Use tiered layer for moodle 28
- 29. www.glcnetworks.com Moodle tips: use threaded software ● Use thread based software → save resources (RAM) ○ Apache MPM-event / MPM-worker ○ nginx ● 29
- 30. www.glcnetworks.com Moodle tips: storage ● Use faster harddisk (SSD is minimum) ● Separate database and application disks ● Make sure space is available (moodle data can take lots of space) ● Use external source to save space (e.g. youtube) 30
- 31. www.glcnetworks.com Moodle tips: networking ● Make sure to have enough bandwidth for moodle ● Usually happen in rush hour (e.g. submission deadline… :-p) ● 31
- 32. www.glcnetworks.com Moodle tips: cache ● Cache plays important rule to speedup moodle ● Some recommended cache: ○ Memcache ○ Redis ● 32
- 33. www.glcnetworks.com Moodle tips: use cloud ● You can just focus on content ● The limit is your credit card 33
- 34. www.glcnetworks.com Example moodle performance ● This was recorded in a mass quiz in 2017 34
- 36. www.glcnetworks.com Webserver maintenance ● Monitoring: ○ Resources: CPU, RAM, IO (storage/networking) ○ Log analysis ○ Regular monitoring ● Maintenance: ○ Broken disk/components ○ Replacement ○ Use RAID? 36
- 38. www.glcnetworks.com Moodle security ● PHP security ○ Disable functions ○ openbasedir ● Linux security ○ Permission / ownership ○ Access control ● Database security ○ Access control ● Networking ○ IP blocking 38
- 40. www.glcnetworks.com preparation ● SSH client ● SSH parameters ○ SSH address ○ SSH port ○ SSH username ○ SSH password 40
- 42. www.glcnetworks.com Interested? Just come to our training... ● Topics are arranged in systematic and logical way ● You will learn from experienced teacher ● Not only learn the materials, but also sharing experiences, best-practices, and networking 42
- 43. www.glcnetworks.com End of slides ● Thank you for your attention ● Please submit your feedback: http://bit.ly/glcfeedback ● Like our facebook page: https://www.facebook.com/glcnetworks ● Slide: http://www.slideshare.net/r41nbuw ● Recording (youtube): https://goo.gl/28ABHU ● Stay tune with our schedule ● Any questions? 43