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Hein & Derik Server wisdom
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| sudo netstat -lpn | |
| https://www.digitalocean.com/community/tutorials/how-to-add-swap-space-on-ubuntu-16-04 | |
| Something like | |
| swapoff -a | |
| fallocate 4G /swapfile | |
| mkswap /swapfile | |
| swapon /swapfile | |
| Run `iostat` | |
| It shows you the io it is using. If the source is swap then we have a problem, else it is fine | |
| Look at load averages in top to see how processors are being used and how many are waiting for processing | |
| Look at CPU processing and CPU credits, make sure it's max usage, not average. | |
| iotop | |
| systemctl edit nameofservice.service | |
| RestartSec / RestartUSec - Modify if service takes long to let go of a port |
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