Some protocol port number you should know in Comptia A+

 Port numbers can be challenging to memorize, so you may want to consider making your own lab by adding some firewall rules in Windows Firewall or any third-party firewall front-end. Once you create firewall rules and work with some of the port numbers, you'll find they're much easier to remember.

Connector interface name - CompTia A+

 Lightning

Lightning connectors are Apple proprietary connectors. These connectors provide an 8-pin digital signal between a mobile device and a computer.

RJ45

RJ45 connectors are 8P8C (Eight position, eight conductor) interfaces, and are commonly used for Ethernet network connections.

HDMI

HDMI is a common video connection type and is used across a wide variety of computing devices, LCD projectors, and display monitors.

Micro-USB

The relatively small micro-USB connector is commonly used to connect mobile devices to computers.

DB-9

DB-9 connectors are often used to communicate with modems, management interfaces, and any other RS-232 serial devices.

USB-C

USB-C connectors are used to connect and power external devices. The USB-C connector is reversible, so it can be inserted into an interface without maintaining a particular orientation.

How to weekly schedule backup Sniped-it to Windows shared folder by crontab

Below is my example of scheduling weekly auto backup Snipe-it to my Windows shared folder at 23:30.

Follow the below steps.

1. Create a folder on the Linux server 

mkdir /tmp/snipeit_backup

2. Mount the Windows shared folder to the Linux folder

Shared Folder Patch: //192.168.1.6/snipeit_backup

Before mount need to install CIFS Utils pkg

sudo apt-get install cifs-utils

After installing CIFS Utils pkg, create a shell script for the mount

vi mountwinshare.sh

Copy the script below and past to the vi editor and save

#!/bin/bash
mount -t cifs -o user=youruser,password=yourpassword //192.168.1.6/snipeit_backup /tmp/snipeit_backup

3. Create the shell script for unmounting the Windows shared folder to the Linux folder

vi umountwinshare.sh

Copy the script below and past to the vi editor and save

#!/bin/bash
umount /tmp/snipeit_backup

4. Create the shell script for backup

vi snipeit_bk.sh

#!/bin/bash
php /var/www/snipe-it/artisan snipeit:backup
mv /var/www/snipe-it/storage/app/backups/*.zip /tmp/snipeit_backup

5. Schedule with Crontab

make sure the file permissions are correct, they will probably be 755, they need to be 775 for users in the Apache group to write to them.

sudo chmod 775 /var/www/snipe-it/storage/app/backup-temp/ -R
sudo chmod 775 /var/www/snipe-it/storage/app/backups/ -R

Run Crontab command

crontab -e

Copy the script below and past to the vi editor and save

25 23 * * 0 /bin/bash /mountwinshare.sh
30 23 * * 0 /bin/bash snipeit_bk.sh
40 23 * * 0 /bin/bash /umountwinshare.sh