cara membatasi firewall pada mikrotik

/ip firewall filter
add chain=input protocol=tcp dst-port=21 \ src-address-list=ftp_blacklist action=drop \ comment="drop ftp brute forcers"

add chain=output action=accept protocol=tcp \ content="530 Login  incorrect" dst-limit=1/1m,9,dst-address/1m

add chain=output action=add-dst-to-address-list protocol=tcp \ content="530 Login incorrect" address-list=ftp_blacklist \ address-list-timeout=3h

add chain=input protocol=tcp dst-port=22 \ src-address-list=ssh_blacklist action=drop \ comment="drop ssh brute forcers" disabled=no


add chain=input protocol=tcp dst-port=22 connection-state=new \ src-address-list=ssh_stage3 action=add-src-to-address-list \ address-list=ssh_blacklist address-list-timeout=10d \ comment="" disabled=no

add chain=input protocol=tcp dst-port=22 connection-state=new \ src-address-list=ssh_stage2 action=add-src-to-address-list \ address-list=ssh_stage3 address-list-timeout=1m \ comment="" disabled=no

add chain=input protocol=tcp dst-port=22\ connection-state=new src-address-list=ssh_stage1 \ action=add-src-to-address-list address-list=ssh_stage2\ address-list-timeout=1m \ comment="" disabled=no

add chain=input protocol=tcp dst-port=22 connection-state=new \ action=add-src-to-address-list address-list=ssh_stage1 \ address-list-timeout=1m comment="" disabled=no

add chain=forward protocol=tcp dst-port=22\ src-address-list=ssh_blacklist action=drop \ comment="drop ssh brute downstream" disabled=no