Quiz: limits and kernel parameters

Read the output

You added a drop-in with LimitNOFILE=4096 and ran daemon-reload. What is left to do?

$ systemctl show -p LimitNOFILE lab-shipper
LimitNOFILE=4096
$ grep 'open files' /proc/$(pgrep -x shipper)/limits
Max open files            64                   64                   files

• A Run daemon-reload again — the description did not reach the process.
• B Restart the service.
• C Fix the limit in the package unit file — the drop-in had no effect.