Ubuntu-server-file-structure

#UBUNTU SERVER DIRECTORY/FILE STRUCTURE - UPDATED 2022 - APRIL
#
#A list of useful directories and files for managing Linux/Ubuntu server
#Especially handy for beginners to Linux and server management

#Hostname file
/etc/hostname

#Hosts file - For DNS Lookup
/etc/hosts

#Internal DNS Resolver config file
/etc/resolv.conf

#SSH Config files
/etc/ssh/sshd_config

#Website storage files.
/var/www/html/

#Nginx main config file (doesn't need to be edited usually).
/etc/nginx/nginx.conf

#Add per site config files.
/etc/nginx/sites-available/

#Create a symlink here from sites-available (nginx server)
/etc/nginx/sites-enabled/

#Site Nginx config files (CentOS/Fedora/RedHat systems)
/etc/nginx/conf.d/

#Apache 2 Config files
/etc/apache2

#Linux kernel and networking settings file
/etc/sysctl.conf

#cloudflared tunnel service config file
/etc/cloudflared/config.yml

#System wide log files
/var/log/

#Nginx log files
/var/log/nginx
/var/log/nginx/error.log
/var/log/nginx/access.log

#Firewall log files
/var/log/ufw.log

#PostGreSQL storage files
/var/lib/postgresql
/var/lib/postgresql/14/main

#PostGreSQL Config files
/etc/postgresql/
/etc/postgresql/14/main
#Main PostgreSQL server config file
/etc/postgresql/14/main/postgresql.conf
#PostGreSQL client connection permissions config
/etc/postgresql/14/main/pg_hba.conf

#APT Package manager sources.
/etc/apt/sources.list.d

#Sudo permissions
/etc/sudoers.d/
/etc/sudoers

#Cron jobs
etc/cron.d
/etc/cron.daily
/etc/cron.hourly
/etc/cron.monthly
/etc/cron.weekly