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compare: adrian:f74b8e66c002f5b69a1b81b6f60429818a4ab293
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1de855304e ... f74b8e66c0

Author SHA1 Message Date
Adrian f74b8e66c0 Update Firewall rules 2021-04-09 01:28:01 +02:00
4 changed files with 12 additions and 16 deletions
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2
iptables/blackwhite.rules
View File

@ -6,8 +6,6 @@
-A PREROUTING -j BLACKLIST
-A BLACKLIST -m set --match-set blacklist src -j DROP
-A WHITELIST -m set --match-set local src -j ACCEPT
-A WHITELIST -m set --match-set whitelist src -j ACCEPT
COMMIT

13
iptables/ipset.rules
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@ -1,8 +1,7 @@
create local hash:net
create whitelist hash:net
create blacklist hash:net
create whitelist hash:net comment
create blacklist hash:net comment
add local 127.0.0.0/8
add local 10.0.0.0/8
add local 172.16.0.0/12
add local 192.168.0.0/16
add whitelist 127.0.0.0/8 comment local
add whitelist 10.0.0.0/8 comment local
add whitelist 172.16.0.0/12 comment local
add whitelist 192.168.0.0/16 comment local

10
iptables/knock.rules
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@ -1,10 +1,10 @@
*raw
:KNOCK -
:PORTKNOCK -
-A PREROUTING -p tcp -m tcp --tcp-flags SYN,ACK SYN -j KNOCK
-A PREROUTING -p tcp -m tcp --tcp-flags SYN,ACK SYN -j PORTKNOCK
-A KNOCK -p tcp -m tcp --dport 22 -m recent --rcheck --seconds 30 --reap --name SSHOK -j RETURN
-A KNOCK -p tcp -m tcp --dport 22222 -m recent --set --name SSHOK -j DROP
-A KNOCK -p tcp -m tcp --dport 22 -j DROP
-A PORTKNOCK -p tcp -m tcp --dport 22 -m recent --rcheck --seconds 30 --reap --name SSHOK -j RETURN
-A PORTKNOCK -p tcp -m tcp --dport 22222 -m recent --set --name SSHOK -j DROP
-A PORTKNOCK -p tcp -m tcp --dport 22 -j DROP
COMMIT

3
iptables/ratelimit.rules
View File

@ -3,8 +3,7 @@
-A PREROUTING -p tcp -m tcp --tcp-flags SYN,ACK SYN -j RATELIMIT
-A RATELIMIT -p tcp -m tcp --dport 25 -m hashlimit --hashlimit-above 4/hour --hashlimit-burst 4 --hashlimit-mode srcip --hashlimit-name ratelimit-smtp --hashlimit-srcmask 16 -j DROP
-A RATELIMIT -p tcp -m tcp --dport 143 -m hashlimit --hashlimit-above 4/hour --hashlimit-burst 4 --hashlimit-mode srcip --hashlimit-name ratelimit-imap --hashlimit-srcmask 16 -j DROP
-A RATELIMIT -p tcp -m multiport --dports 25,143 -m hashlimit --hashlimit-above 4/hour --hashlimit-burst 4 --hashlimit-mode srcip --hashlimit-name ratelimit-mail --hashlimit-srcmask 16 -j DROP
-A RATELIMIT -m hashlimit --hashlimit-above 4/hour --hashlimit-burst 16 --hashlimit-mode srcip,dstport --hashlimit-name ratelimit-other --hashlimit-srcmask 16 -j DROP
COMMIT