Installing lubuntu/ubuntu on SSD optimizes tmpfs, causing apache2/nginx to fail to start.

During SSD solid state drive optimization, /var/log was put into the ramdisk of tmpfs. Restarting caused the apache2 and nginx directories in /var/log to be lost, and apache2/nginx failed to start.

Solution: Create these two directories in ~/.bashrc and add them at the end of ~/.bashrc. (Oh, use the discovery method to add ~/.bashrc. After the second time you open the terminal, you will be prompted to create a directory error. It is better to add /etc/rc.local)

Tips-> Correction: Add the /etc/rc.local file before exit 0.

#for apache2

mkdir /var/log/apache2

#for nginx

mkdir /var/log/nginx

Restart the machine

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