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Visual Studio 2026 激活码 / VS2026密钥(VS2026激活码) 沙箱环境安装dotnet Microsoft Office 2024 全家桶 docker-compose 部署 Redis 的一些警告 UFW防火墙规则对Docker映射端口无效 Nginx错误 open() "/usr/local/nginx/proxy_temp/x/xx/xxxxxxxx" failed (13: Permission denied) while reading upstream解决办法 NET8在CentOS7下无法执行的问题 Nginx配置文件中,如何配置启用SignalR Error: Failed to download metadata for repo ‘appstream’ – CentOS 8 dotnet堆栈溢出通用排查方法 CMD下查所有3389连接的IP地址 Nginx的proxy_pass url 反向代理的配置 一些名词 NET CORE LINUX 部署 报 A connection was successfully established with the server, but then an error occurred during the pre-login handshake.解决方法 须先停止生成方可关闭解决方案(The build must be stopped before the solution can be closed) 安装最新版本NextCloud Docker、Nginx、整合LetsEncrypt SSL证书 如何将 Windows 10 Enterprise LTSC 2021 评估版升级到完整版 MS SQL 去除字段中的大小写英文、数字、特定符号 MariaDB 配置示例文件 整理一些激活密钥
Mikrotik ROS默认推荐防火墙规则firewall脚本
cnkker.com · 2023-03-02 · via 博客园 - cnkker.com

一、先配置接口列表

/interface list
add comment=defconf name=WAN
add comment=defconf name=LAN

/interface list member
add interface=lan list=LAN
add interface=wan list=WAN
add interface=pppoe-out1 list=WAN

二、配置IPv4 防火墙规则

 
/ip firewall filter
add action=accept chain=input comment="accept ping" protocol=icmp
add action=accept chain=input comment="accept established,related,untracked" connection-state=established,related,untracked

/ip firewall filter
add action=drop chain=input comment="drop invalid" connection-state=invalid
add action=drop chain=input comment="drop all from WAN" in-interface-list=WAN
add action=fasttrack-connection chain=forward comment="defconf: fasttrack" connection-state=established,related
add action=accept chain=forward comment="accept established,related, untracked" connection-state=established,related,untracked
add action=drop chain=forward comment="drop invalid" connection-state=invalid
add action=drop chain=forward comment="drop all from WAN not DSTNATed" connection-nat-state=!dstnat connection-state=new in-interface-list=WAN

防止端口扫描

/ip firewall filter 
add chain=input protocol=tcp psd=21,3s,3,1 action=add-src-to-address-list address-list="port scanners" address-list-timeout=14d comment="Port scanners to list" disabled=no  
add chain=input protocol=tcp tcp-flags=fin,!syn,!rst,!psh,!ack,!urg action=add-src-to-address-list address-list="port scanners" address-list-timeout=14d comment="NMAP FIN Stealth scan"
add chain=input protocol=tcp tcp-flags=fin,syn action=add-src-to-address-list address-list="port scanners" address-list-timeout=14d comment="SYN/FIN scan"
add chain=input protocol=tcp tcp-flags=syn,rst action=add-src-to-address-list address-list="port scanners" address-list-timeout=14d comment="SYN/RST scan"
add chain=input protocol=tcp tcp-flags=fin,psh,urg,!syn,!rst,!ack action=add-src-to-address-list address-list="port scanners" address-list-timeout=14d comment="FIN/PSH/URG scan"
add chain=input protocol=tcp tcp-flags=fin,syn,rst,psh,ack,urg action=add-src-to-address-list address-list="port scanners" address-list-timeout=14d comment="ALL/ALL scan"
add chain=input protocol=tcp tcp-flags=!fin,!syn,!rst,!psh,!ack,!urg action=add-src-to-address-list address-list="port scanners" address-list-timeout=14d comment="NMAP NULL scan"
add chain=input src-address-list="port scanners" action=drop comment="dropping port scanners" disabled=no

三、配置IPv6 防火墙规则,如果有使用ipv6的

ipv6 firewall address-list
add address=::/128 comment="defconf: unspecified address" list=bad_ipv6
add address=::1/128 comment="defconf: lo" list=bad_ipv6
add address=fec0::/10 comment="defconf: site-local" list=bad_ipv6
add address=::ffff:0.0.0.0/96 comment="defconf: ipv4-mapped" list=bad_ipv6
add address=::/96 comment="defconf: ipv4 compat" list=bad_ipv6
add address=100::/64 comment="defconf: discard only " list=bad_ipv6
add address=2001:db8::/32 comment="defconf: documentation" list=bad_ipv6
add address=2001:10::/28 comment="defconf: ORCHID" list=bad_ipv6
add address=3ffe::/16 comment="defconf: 6bone" list=bad_ipv6
add address=::224.0.0.0/100 comment="defconf: other" list=bad_ipv6
add address=::127.0.0.0/104 comment="defconf: other" list=bad_ipv6
add address=::/104 comment="defconf: other" list=bad_ipv6
add address=::255.0.0.0/104 comment="defconf: other" list=bad_ipv6

/ipv6 firewall filter
add action=accept chain=input comment="defconf: accept established,related,untracked" connection-state=established,related,untracked
add action=drop chain=input comment="defconf: drop invalid" connection-state=invalid
add action=accept chain=input comment="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=input comment="defconf: accept UDP traceroute" port=33434-33534 protocol=udp
add action=accept chain=input comment="defconf: accept DHCPv6-Client prefix delegation." dst-port=546 protocol=udp src-address=fe80::/16
add action=accept chain=input comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=input comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=input comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=input comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=input comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN
add action=accept chain=forward comment="defconf: accept established,related,untracked" connection-state=established,related,untracked
add action=drop chain=forward comment="defconf: drop invalid" connection-state=invalid
add action=drop chain=forward comment="defconf: drop packets with bad src ipv6" src-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: drop packets with bad dst ipv6" dst-address-list=bad_ipv6
add action=drop chain=forward comment="defconf: rfc4890 drop hop-limit=1" hop-limit=equal:1 protocol=icmpv6
add action=accept chain=forward comment="defconf: accept ICMPv6" protocol=icmpv6
add action=accept chain=forward comment="defconf: accept HIP" protocol=139
add action=accept chain=forward comment="defconf: accept IKE" dst-port=500,4500 protocol=udp
add action=accept chain=forward comment="defconf: accept ipsec AH" protocol=ipsec-ah
add action=accept chain=forward comment="defconf: accept ipsec ESP" protocol=ipsec-esp
add action=accept chain=forward comment="defconf: accept all that matches ipsec policy" ipsec-policy=in,ipsec
add action=drop chain=forward comment="defconf: drop everything else not coming from LAN" in-interface-list=!LAN