vim /lib/systemd/system/clamd\@.service
[Service]
CPUQuota=50%
MemoryLimit=500M
vim /etc/clamd.d/scan.conf
LogFileMaxSize 0
MaxConnectionQueueLength 30
MaxThreads 8
MaxScanSize 100M
MaxFileSize 25M
vim /etc/webmin/virtual-server/config
clamscan_cmd=clamscan to
clamscan_cmd=clamdscan