Eric's Linux Server Help

This is a mishmash of things to remember when creating linux servers, and just shit for me to remember in general reguarding linux.

Table of contents

• General Ubuntu Server jazz
  • Renaming hostname
  • Coloring the console
  • Add Aliases
  • Run a startup script at boot (non root)
  • Run a startup script at boot (ROOT)
  • Auto mounting hard drive
  • NGINX
    • Install NGINX
    • Configuring NGINX
    • Restart NGINX
  • Installing MYSQL
  • Create SAMBA share
    • Installation
    • Fixing user shit
    • Adding a share
    • Restarting samba
  • Screen Utilities
    • Starting up a screen with a name and have it run a program
    • Renaming screen
    • Disconnect from screen
    • Terminate Screen
  • Programs to remember
• Debian Specific Jazz
  • Installation Steps
    • Fast package
    • Web Server Option
    • After successful login for the first time
  • Fix/Add sudo command
  • Remove apache2
  • Installed UFW
  • Enabling SSH

General Ubuntu Server jazz

These are common things I do when I create a ubuntu server

Renaming hostname

1. hostnamectl set-hostname new-host-name
2. sudo nano /etc/hosts 2nd line needs to be changed to new-host-name

Coloring the console

1. sudo nano ~/.bashrc
2. Uncomment: force_color_prompt=yes
3. Restart your terminal

Add Aliases

1. sudo nano ~/.bashrc
2. Scroll down to bottom
3. Add alias cls='clear' <-- This will make cls run the clear command

Run a startup script at boot (non root)

1. Navigate to home
2. Create startup script file: nano startup-script.sh
3. Make it executable: //TODO
4. Open Cron: crontab -e
5. Add @reboot /home/user/startup-script.sh to the end of the file
6. Exit & test!

Run a startup script at boot (ROOT)

1. Navigate to home
2. Create startup script file: nano startup-script-root.sh
3. Make it executable: //TODO
4. Open Cron: sudo crontab -e
5. Add @reboot /home/user/startup-script-root.sh to the end of the file
6. Exit & test!

Auto mounting hard drive

//TODO

NGINX

//TODO

Install NGINX

//TODO

Configuring NGINX

//TODO

Restart NGINX

1. sudo systemctl restart nginx
2. sudo systemctl status nginx

Installing MYSQL

//TODO

Create SAMBA share

Instructions how to do everything with SAMBA and get it working with Windows.

Installation

1. sudo apt-get purge samba samba-common
2. sudo rm -rf /etc/samba/ /etc/default/samba
3. sudo apt-get install samba

Fixing user shit

Had some weird issues with users, so we create a share user, the share user will own all the files created on the samba share

1. adduser --system shareuser
2. chown -R shareuser /path/to/share

Adding a share

1. sudo nano /etc/samba/smb.conf
2. Template:

[myshare] # Share name that appears on other computers. No spaces
comment = My Amazing Share # A viewable comment describing what the share is
path = /path/to/share # Absolute path to file share
writeable = yes # We want to be able to write to the share
browseable = yes # We want to browse the file share
public = yes # Don't remember but this fixed weird shit
create mask = 0777 # Make every file executable read and writable. Probs not the best idea but like it works...
directory mask = 0777 # Make every folder executable read and writable. Probs not the best idea but like it works...
force user = shareuser # Force the user to be the share user we created above

3. Example:

[photos]
comment = Family photos
path = /home/eric/photos
writeable = yes
browseable = yes
public = yes
create mask = 0777
directory mask = 0777
force user = shareuser

Restarting samba

1. sudo systemctl restart smbd

Screen Utilities

Useful screen commands

Starting up a screen with a name and have it run a program

screen -S 'Screen-Name' -dm bash -c "cd /home/user/directory/; java -jar Program.jar"

Renaming screen

1. CTRL + A
2. :sessionname name

Disconnect from screen

CTRL + D

Terminate Screen

CTRL + C

Programs to remember

1. screen -> Run things in the background
2. htop -> Better TOP command, view programs, kill them. Must run as SUDO to kill things
3. lolcat -> Rainbowify text

Debian Specific Jazz

Specific weird quirks that Ubuntu normally would do for us, but Debian doesn't

Installation Steps

Fast package

When prompted to select a mirror, choose mirrors.edge.kernel.org because its fast.

Web Server Option

Needed to install networking. Installs apache2, we need to uninstall to afterard.

After successful login for the first time

1. su -
2. apt-get update && apt-get upgrade -y
3. After this you can use apt and not apt get

Fix/Add sudo command

Sudo isn't installed by default.

1. apt install sudo
2. nano /etc/sudoers
3. Replace %sudo with username

Remove apache2

1. sudo apt remove apache2
2. sudo apt autoremove -y

Installed UFW

1. sudo apt install ufw
2. sudo ufw allow ssh
3. sudo ufw allow http
4. sudo ufw allow https
5. sudo ufw allow ftp

Enabling SSH

1. sudo systemctl enable ssh
2. sudo systemctl start ssh