blob: f353d855497f9c4656378db98e9c708c882eb512 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
define icmp_protos = { ipv6-icmp, icmp, igmp }
table arp filter {
limit lim_arp_local {
rate over 50 mbytes/second burst 50 mbytes
}
limit lim_arp_dsl {
rate over 1400 kbytes/second burst 1400 kbytes
}
chain input {
type filter hook input priority filter
policy accept
iifname != dsl limit name lim_arp_local counter drop
iifname dsl limit name lim_arp_dsl counter drop
counter
}
chain output {
type filter hook output priority filter
policy accept
oifname != dsl limit name lim_arp_local counter drop
oifname dsl limit name lim_arp_dsl counter drop
counter
}
}
table inet filter {
limit lim_reject {
rate over 1000/second burst 1000 packets
}
limit lim_icmp {
rate over 50 mbytes/second burst 50 mbytes
}
chain forward {
type filter hook forward priority filter
policy drop
ct state invalid log prefix "drop invalid forward: " counter drop
iifname lo counter accept
meta l4proto $icmp_protos limit name lim_icmp counter drop
meta l4proto $icmp_protos counter accept
limit name lim_reject log prefix "drop forward: " counter drop
log prefix "reject forward: " counter
meta l4proto tcp ct state new counter reject with tcp reset
ct state new counter reject
counter
}
chain input {
type filter hook input priority filter
policy drop
ct state invalid log prefix "drop invalid input: " counter drop
iifname lo counter accept
iif != lo ip daddr 127.0.0.1/8 counter reject
iif != lo ip6 daddr ::1/128 counter reject
meta l4proto $icmp_protos limit name lim_icmp counter drop
meta l4proto $icmp_protos counter accept
ct state {established, related} counter accept
tcp dport 22 counter accept
meta protocol ip udp dport {51820, 51821} counter accept
udp dport 60000-61000 counter accept
limit name lim_reject log prefix "drop input: " counter drop
log prefix "reject input: " counter
meta l4proto tcp ct state new counter reject with tcp reset
ct state new counter reject
counter
}
chain output {
type filter hook output priority filter
policy accept
oifname lo counter accept
meta l4proto $icmp_protos limit name lim_icmp counter drop
meta l4proto $icmp_protos counter accept
counter
}
}
|
