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Firewall Anti Brutuce Force

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Firewall Anti Brutuce Force - Salah satu cara mencuri password dan membobol password adalah dengan menggunakan brutuce force. Dan kita akan memblok brutuce forece dengan Firewall anti brutuce force pada routerboard mikrotik rb750. Nah untuk melindungi mikrotik dari brutuce force bisa di masukkan firewall seperti berikut





Fungsinya:
Men-drop ssh brute forcers dan drop ssh brute downstream

/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

source: forummikrotik.com

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