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Create linux swap file

Adding a swap file helps with performance, especially on machines with low memory. Here is my way to create one: dd if=/dev/zero of=/swapfile1 bs=1024 count=4524288 #df -k mkswap /swapfile1 chown root:root /swapfile1 swapon /swapfile1 echo '/swapfile1 swap swap defaults 0 0' >> /etc/fstab