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| Cách tạo Swap Ram ảo cho VPS Ubuntu |
### Swap Ram
free -m
dd if=/dev/zero of=/swapfile bs=1024 count=1024k
mkswap /swapfile
chmod 600 /swapfile
chown root:root /swapfile
swapon /swapfile
nano /etc/fstab
/swapfile none swap sw 0 0 swapoff -v /swapfile rm /etc/fstab
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