Quick way to add more SWAP space on your server
To check the swap space used you can use “free -m“.
If for some reason you have a server with too little SWAP then there is a quick way to create a swap file and then use it for additional swap space on the server.
dd if=/dev/zero of=/opt/swapfile bs=1024 count=2048000
mkswap /opt/swapfile
swapon /opt/swapfile
swapon -s
mkswap /opt/swapfile
swapon /opt/swapfile
swapon -s
And then we need to add the following to the /etc/fstab.
/opt/swapfile swap swap defaults 0 0
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