Digital Ocean. Создание swap-файла
# dd if=/dev/zero of=/swapfile bs=1024 count=512k
# mkswap /swapfile
# swapon /swapfile
# echo -e '\n/swapfile swap swap defaults 0 0' >> /etc/fstab
# reboot
# swapon -s
# free
# dd if=/dev/zero of=/swapfile bs=1024 count=512k
# mkswap /swapfile
# swapon /swapfile
# echo -e '\n/swapfile swap swap defaults 0 0' >> /etc/fstab
# reboot
# swapon -s
# free