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nftables: explain ordering of strong host model check

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This commit is contained in:
Daniel Micay 2024-04-11 09:49:50 -04:00
parent b21ea0a23f
commit ecd14bddff
9 changed files with 18 additions and 0 deletions
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2
nftables-attestation.conf
View File

@ -40,6 +40,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
tcp dport { 22, 80, 443 } tcp flags syn limit rate 1024/second burst 128 packets accept

2
nftables-discuss.conf
View File

@ -40,6 +40,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
tcp dport { 22, 80, 443 } tcp flags syn limit rate 1024/second burst 128 packets accept

2
nftables-mail.conf
View File

@ -40,6 +40,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
tcp dport { 22, 25, 80, 443, 465, 993 } tcp flags syn limit rate 1024/second burst 128 packets accept

2
nftables-matrix.conf
View File

@ -40,6 +40,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
tcp dport { 22, 80, 443 } tcp flags syn limit rate 1024/second burst 128 packets accept

2
nftables-network.conf
View File

@ -42,6 +42,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
tcp dport { 22, 80, 443, 7275 } tcp flags syn limit rate 1024/second burst 128 packets accept

2
nftables-ns1.conf
View File

@ -40,6 +40,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
udp dport 53 notrack accept

2
nftables-ns2.conf
View File

@ -42,6 +42,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
# reject SSH packets via anycast IP

2
nftables-social.conf
View File

@ -40,6 +40,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
tcp dport { 22, 80, 443 } tcp flags syn limit rate 1024/second burst 128 packets accept

2
nftables-web.conf
View File

@ -44,6 +44,8 @@ table inet filter {
iif lo notrack accept
# drop packets to address not configured on incoming interface (strong host model)
#
# ordered after accepting loopback to permit using external IPs via loopback
fib daddr . iif type != { local, broadcast, multicast } counter drop
tcp dport { 22, 80, 443 } tcp flags syn limit rate 1024/second burst 128 packets accept