Other problems

Cannot create cache directory

Problem: Cannot create cache directory /var/www/.cache/composer/repo/https---repo.packagist.org/, or directory is not writable. Proceeding without cache. See also cache-read-only config if your filesystem is read-only.

Solution:

sudo mkdir -p /var/www/.cache/composer/repo/https---repo.packagist.org/
sudo chown -R www-data: /var/www/.cache/

Unknown Object Identifier

Problem: OLT HUAWEI Cant get all info or Error “Unknown Object Identifier (Index out of range: XXX (ifIndex))”

Solution: The error can be solved by adding to the configuration file /etc/snmp/snmp.conf:

noRangeCheck yes