RStudio

Installed

• r-base → Core R interpreter, standard libraries.
• r-base-dev → Compilers & headers for building packages.
• RStudio Server → Web IDE accessible via browser.

Access RStudio Server

Open in your browser: http://<server-ip>:8787

Login with:

• Username: rstudio
• Password: (check /root/.cloudzy-creds)

Command Line R

Launch R directly from the terminal:

R

Important Files & Directories

R Environment:

• /etc/R → System-wide R config.
• /usr/bin/R → R binary.
• /usr/lib/R → Base R libraries.
• /usr/local/lib/R/site-library → Site-wide add-on packages.

RStudio Server:

• /etc/rstudio/ → Main config (rstudio-server.conf, database.conf, etc).
• /var/log/rstudio/rstudio-server/ → Server logs.
• /var/lib/rstudio-server/ → State, sessions, persistent data.
• /usr/lib/rstudio-server/ → RStudio binaries.
• /home/rstudio/ → Default user workspace.

Installing Packages

From Ubuntu repositories (system-wide):

sudo apt install r-cran-curl

From R console (latest from CRAN):

install.packages("ggplot2")

Notes

• Protect port 8787 (firewall / reverse proxy).
• Keep /root/.cloudzy-creds safe — it contains login credentials.