Hi,
I have added some good articles, documents and Public KB's as provided by some Community Members. If I have missed some good Knowledge Base documents, please feel free to add.
Some of the best documents, process and articles that are SEP and SAVFL releated.
SEPM 12.1 Ports are using
Which communications ports does Symantec Endpoint Protection use?
http://www.symantec.com/docs/TECH163787
SEPM 11 to SEPM 12 Upgrade Paths
Public KB’s
Supported upgrade paths to Symantec Endpoint Protection Manager 12.1 from Symantec Endpoint Protection Manager 11.x
http://www.symantec.com/docs/TECH192779
Supported upgrade paths for the Symantec Endpoint Protection client
http://www.symantec.com/docs/HOWTO81070
Article
https://www-secure.symantec.com/connect/articles/supported-upgrade-paths-symantec-endpoint-protection-121
SEP 11 to SEP 12 Upgrade Process.
Public Kb’s
Upgrading or Migrating To Symantec Endpoint Protection (SEP) 12.1
http://www.symantec.com/docs/TECH163602
Symantec Endpoint Protection Manager 12.1 (SEPM) fresh install with a new SQL database - graphical overview
http://www.symantec.com/business/support/index?page=content&id=TECH169451
Articles
SEP 11.x to SEP 12.1 Upgrade process graphical overview
https://www-secure.symantec.com/connect/articles/sep-11x-sep-121-upgrade-process-graphical-overview
SEPM 12.1 Fresh install with SQL database - graphical overview
https://www-secure.symantec.com/connect/articles/sepm-121-fresh-installation-sql-database-graphical-overview
SEPM 12.1 Fresh install with embedded database - graphical overview
https://www-secure.symantec.com/connect/articles/sepm-121-fresh-installation-embedded-database-graphical-overview
SEP 12.1 Best Practices
https://www-secure.symantec.com/connect/articles/sep-121-top-articles-and-best-practices
SEP 12.1 Best Practice, License & other articles
https://www-secure.symantec.com/connect/articles/sep-121-best-practice-license-other-articles
Shrink the Symantec Endpoint Protection Manager 12.1 embedded database
https://www-secure.symantec.com/connect/downloads/shrink-symantec-endpoint-protection-manager-121-embedded-database
Download
Best Practices Client Settings for Symantec Endpoint Protection Version 12.1
https://www-secure.symantec.com/connect/downloads/best-practices-client-settings-symantec-endpoint-protection-version-121
SEP 12.1 RU2 Related Documents
Symantec™ Endpoint Protection and Symantec Network Access Control 12.1.2 Installation and Administration Guide
https://www.symantec.com/business/support/index?page=content&id=DOC6153
Symantec™ Endpoint Protection and Symantec Network Access Control 12.1.2 Client Guide
https://www.symantec.com/business/support/index?page=content&id=DOC3719
About Symantec Endpoint Protection 12.1.2 product guide locations
http://www.symantec.com/docs/HOWTO81153
SEP 12.1 RU2 Installation and Upgrade Process
Symantec™ Endpoint Protection 12.1.2 Getting Started Guide
http://www.symantec.com/docs/DOC4322
Article.
Upgrade process from SEP 12.1 RU1 MP1 to SEP 12.1 RU2
https://www-secure.symantec.com/connect/articles/upgrade-process-sep-121-ru1-mp1-sep-121-ru2
New Clean wipe version is introduced in SEP 12.1 RU2
https://www-secure.symantec.com/connect/articles/new-cleanwipe-version-introuduced-sep-121-ru2
SEP 12.1 RU2 and Reset Client Communication
https://www-secure.symantec.com/connect/articles/sep-121-ru2-and-reset-client-communication
What's new in SEP 12.1 RU2
https://www-secure.symantec.com/connect/articles/whats-new-sep-121-ru2
Knowledgebase Articles for Symantec Endpoint Protection 12.1. RU2
https://www-secure.symantec.com/connect/articles/knowledgebase-articles-symantec-endpoint-protection-121-ru2
https://www-secure.symantec.com/connect/downloads/downloadable-guides-reference-symantec-endpoint-protection-121-ru2
Symantec Group Provider
Group Update Provider: Sizing and Scaling Guidelines
http://www.symantec.com/docs/TECH95353
How to: Setup a Group Update Provider (GUP)
http://www.symantec.com/docs/TECH105005
Symantec Endpoint Protection (SEP) Group Update Providers (GUPs) Selection Examples
http://www.symantec.com/docs/TECH198702
Best Practices with Symantec Endpoint Protection (SEP) Group Update Providers (GUP)
http://www.symantec.com/docs/TECH93813
SEP 12.1 RU2 And Explicit Group Update Providers
https://www-secure.symantec.com/connect/articles/sep-121-ru2-and-explicit-group-update-providers
Group Provider Trouble Shooting
Troubleshooting the Group Update Provider (GUP) in Symantec Endpoint Protection (SEP)
http://www.symantec.com/docs/TECH104539
Some Videos
https://www-secure.symantec.com/connect/videos/group-update-providers-part-1
https://www-secure.symantec.com/connect/videos/group-update-providers-part-2
SEP client Communication Troubleshooting
Symantec Endpoint Protection: Troubleshooting Client/Server Connectivity
http://www.symantec.com/docs/TECH105894
Troubleshooting Client Communication with SEPM
http://www.symantec.com/docs/TECH95789
Submit Suspicious Files
Using Symantec Support Tool, how do we Collect the Suspicious Files and Submit the same to Symantec Security Response Team.
https://www-secure.symantec.com/connect/articles/using-symantec-support-tool-how-do-we-collect-suspicious-files-and-submit-same-symantec-sec
Symantec Antivirus for Linux 1.0x
Release Notes For Symantec Antivirus for Linux 1.0x
http://www.symantec.com/business/support/index?pag...
System requirements for Symantec Antivirus for Linux 1.0
http://www.symantec.com/docs/TECH101598
Guide to building Auto Protect kernel modules for Symantec Antivirus for Linux 1.0
http://www.symantec.com/docs/TECH132773
Symantec Antivirus for Linux: How to Compile Auto-Protect Kernel Modules under Ubuntu
http://www.symantec.com/docs/TECH95496
How to Compile and Install Auto-Protect Kernel Modules for use in your local SUSE Linux environment
http://www.symantec.com/docs/TECH97037
How to create exclusions
How to configure scanning of compressed files in Symantec Antivirus for Linux
http://www.symantec.com/docs/TECH102882
Symantec Antivirus for Linux: How to Configure Scan Exclusions from the Command Line Interface
http://www.symantec.com/docs/TECH95274
How to add Folder Exclusion for autos protect manual and weekly scans in Symantec Antivirus for Linux.
http://www.symantec.com/docs/TECH123497
Do we really need a Antivirus for Linux
https://www-secure.symantec.com/connect/articles/do-we-really-need-antivirus-linux
SAV for Linux Scanning Best Practices: A (Somewhat) Illustrated Guide
https://www-secure.symantec.com/connect/articles/sav-linux-scanning-best-practices-somewhat-illustrated-guide
SAV for Linux: A (Somewhat) Illustrated Guide Part 2
https://www-secure.symantec.com/connect/articles/sav-linux-somewhat-illustrated-guide-part-2
How to configure Symantec Antivirus for Linux using a GRC.DAT file
http://www.symantec.com/docs/TECH93386
Managed SEP client for Linux
https://www-secure.symantec.com/connect/ideas/managed-sep-client-linux
Create a tool to verify the minimum requirements for SAVFL - Sav for Linux
https://www-secure.symantec.com/connect/ideas/create-tool-verify-minimum-requirements-savfl-sav-linux
Remote Deployment Tool for SAVFL
https://www-secure.symantec.com/connect/ideas/remote-deployment-tool-savfl
Installing Symantec Endpoint Protection for Macintosh
http://www.symantec.com/docs/TECH131675
Exporting Symantec Endpoint Protection client installation packages for Mac computers
Compatibility between Symantec Endpoint Protection/Symantec AntiVirus for Macintosh and HFS Extended, case-sensitive formatted volumes
http://www.symantec.com/docs/TECH104314
Videos
https://www-secure.symantec.com/connect/videos/symantec-endpoint-protection-installation-macintosh
Good Information in One Artical.