MIKROTIK - Bruteforce SSH Firewall Rules: Difference between revisions
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/ip/firewall/filter/add action=add-src-to-address-list address-list=BRUTEFORCE_BLACKLIST address-list-timeout=1d chain=input comment="Blacklist" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS3,!LIST_SSH_WHITELIST | /ip/firewall/filter/add action=add-src-to-address-list address-list=BRUTEFORCE_BLACKLIST address-list-timeout=1d chain=input comment="Blacklist" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS3,!LIST_SSH_WHITELIST | ||
/ip/firewall/filter/add action=add-src-to-address-list address-list=connection3 address-list-timeout=1h chain=input comment="Third attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS2,!LIST_SSH_WHITELIST | /ip/firewall/filter/add action=add-src-to-address-list address-list=connection3 address-list-timeout=1h chain=input comment="Third attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS2,!LIST_SSH_WHITELIST | ||
/ip/firewall/filter/add action=add-src-to-address-list address-list=connection2 address-list-timeout=15m chain=input comment="Second attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS1,!LIST_SSH_WHITELIST | /ip/firewall/filter/add action=add-src-to-address-list address-list=connection2 address-list-timeout=15m chain=input comment="Second attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS1,!LIST_SSH_WHITELIST | ||
/ip/firewall/filter/add action=add-src-to-address-list address-list=connection1 address-list-timeout=1m chain=input comment="First attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=!LIST_SSH_WHITELIST | /ip/firewall/filter/add action=add-src-to-address-list address-list=connection1 address-list-timeout=1m chain=input comment="First attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=!LIST_SSH_WHITELIST | ||
/ip/firewall/filter/add action=accept chain=input dst-port=2222 protocol=tcp src-address-list=!BRUTEFORCE_BLACKLIST</nowiki> | /ip/firewall/filter/add action=accept chain=input dst-port=2222 protocol=tcp src-address-list=!BRUTEFORCE_BLACKLIST</nowiki> | ||
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BRUTEFORCE PREVENTION : | BRUTEFORCE PREVENTION : | ||
https://help.mikrotik.com/docs/display/ROS/Bruteforce+prevention | * https://help.mikrotik.com/docs/display/ROS/Bruteforce+prevention | ||
Revision as of 11:55, 1 May 2024
SSH BRUTEFORCE PREVENTION MIKROTIK
(Aka Fail2ban)
SSH IP Whitelist
Create the whitelist and add RFC1918 addresses :
/ip/firewall/address-list/add list=LIST_SSH_WHITELIST address=10.0.0.0/8 comment="RFC1918_extended" /ip/firewall/address-list/add list=LIST_SSH_WHITELIST address=100.64.0.0/10 comment="RFC1918_extended" /ip/firewall/address-list/add list=LIST_SSH_WHITELIST address=172.16.0.0/12 comment="RFC1918_extended" /ip/firewall/address-list/add list=LIST_SSH_WHITELIST address=192.168.0.0/16 comment="RFC1918_extended"
Add the administrators IP :
/ip/firewall/address-list/add list=LIST_SSH_WHITELIST address=W.X.Y.Z comment="admin@example.org" ...
SSH Firewall Rules For Port 2222
/ip/firewall/filter/add action=add-src-to-address-list address-list=BRUTEFORCE_BLACKLIST address-list-timeout=1d chain=input comment="Blacklist" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS3,!LIST_SSH_WHITELIST /ip/firewall/filter/add action=add-src-to-address-list address-list=connection3 address-list-timeout=1h chain=input comment="Third attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS2,!LIST_SSH_WHITELIST /ip/firewall/filter/add action=add-src-to-address-list address-list=connection2 address-list-timeout=15m chain=input comment="Second attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=LIST_ALL_SSH_CONNECTIONS1,!LIST_SSH_WHITELIST /ip/firewall/filter/add action=add-src-to-address-list address-list=connection1 address-list-timeout=1m chain=input comment="First attempt" connection-state=new dst-port=2222 protocol=tcp src-address-list=!LIST_SSH_WHITELIST /ip/firewall/filter/add action=accept chain=input dst-port=2222 protocol=tcp src-address-list=!BRUTEFORCE_BLACKLIST
Usefull Links
BRUTEFORCE PREVENTION :
