1. Add Swap File
$ sudo fallocate -l 1G /swapfile
Create a 1GB swap file on Linux system
2. Set Swap File Permission
$ sudo chmod 600 /swapfile
3. Setup Linux Swap Area
$ sudo mkswap /swapfile
4. Enable the Swap
$ sudo swapon /swapfile
Modify /etc/fstab to enable the entry. Append the following line in the file
/swapfile swap swap defaults 0 0
5. Verify the swap status
$ sudo swapon --show