Git-Mirrors/graphene-os-server-infrastructure
1
0
Fork 0
mirror of https://github.com/GrapheneOS/infrastructure.git synced 2025-01-03 11:00:49 -05:00
Code Issues Packages Projects Releases Wiki Activity

nftables: drop unnecessary ssh localhost allowlist

Browse Source
This commit is contained in:
Daniel Micay 2024-04-15 22:38:15 -04:00
parent 9f84c50869
commit dade50c832
9 changed files with 24 additions and 78 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
nftables/nftables-attestation.conf
View File

@ -3,14 +3,6 @@
flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
}
define ip6-allowlist-ssh = {
::1,
}
set ip-connlimit-ssh {
type ipv4_addr
flags dynamic
@ -84,8 +76,8 @@ table inet filter {
# add connections established without synproxy to connection limit sets with limits enforced
chain input-tcp-service-established {
ct mark 0x1 accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept
@ -94,8 +86,8 @@ table inet filter {
# add connections established with synproxy to connection limit sets with limits enforced
chain input-tcp-service-loopback {
tcp flags != syn accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept

16
nftables/nftables-discuss.conf
View File

@ -3,14 +3,6 @@
flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
}
define ip6-allowlist-ssh = {
::1,
}
set ip-connlimit-ssh {
type ipv4_addr
flags dynamic
@ -84,8 +76,8 @@ table inet filter {
# add connections established without synproxy to connection limit sets with limits enforced
chain input-tcp-service-established {
ct mark 0x1 accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept
@ -94,8 +86,8 @@ table inet filter {
# add connections established with synproxy to connection limit sets with limits enforced
chain input-tcp-service-loopback {
tcp flags != syn accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept

16
nftables/nftables-mail.conf
View File

@ -3,14 +3,6 @@
flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
}
define ip6-allowlist-ssh = {
::1,
}
set ip-connlimit-ssh {
type ipv4_addr
flags dynamic
@ -84,8 +76,8 @@ table inet filter {
# add connections established without synproxy to connection limit sets with limits enforced
chain input-tcp-service-established {
ct mark 0x1 accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 25, 80, 443, 465, 993 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 25, 80, 443, 465, 993 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept
@ -94,8 +86,8 @@ table inet filter {
# add connections established with synproxy to connection limit sets with limits enforced
chain input-tcp-service-loopback {
tcp flags != syn accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 25, 80, 443, 465, 993 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 25, 80, 443, 465, 993 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept

16
nftables/nftables-matrix.conf
View File

@ -3,14 +3,6 @@
flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
}
define ip6-allowlist-ssh = {
::1,
}
set ip-connlimit-ssh {
type ipv4_addr
flags dynamic
@ -84,8 +76,8 @@ table inet filter {
# add connections established without synproxy to connection limit sets with limits enforced
chain input-tcp-service-established {
ct mark 0x1 accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept
@ -94,8 +86,8 @@ table inet filter {
# add connections established with synproxy to connection limit sets with limits enforced
chain input-tcp-service-loopback {
tcp flags != syn accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept

2
nftables/nftables-network.conf
View File

@ -4,12 +4,10 @@ flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
51.222.159.116, # 0.grapheneos.network
}
define ip6-allowlist-ssh = {
::1,
2607:5300:205:200::2584, # 0.grapheneos.network
}

16
nftables/nftables-ns1.conf
View File

@ -3,14 +3,6 @@
flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
}
define ip6-allowlist-ssh = {
::1,
}
set ip-connlimit-ssh {
type ipv4_addr
flags dynamic
@ -87,8 +79,8 @@ table inet filter {
# add connections established without synproxy to connection limit sets with limits enforced
chain input-tcp-service-established {
ct mark 0x1 accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 53, 80, 443, 853 } add @ip-connlimit-main { ip saddr ct count over 16 } counter reject with tcp reset
tcp dport { 53, 80, 443, 853 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 16 } counter reject with tcp reset
ct mark set 0x1 accept
@ -97,8 +89,8 @@ table inet filter {
# add connections established with synproxy to connection limit sets with limits enforced
chain input-tcp-service-loopback {
tcp flags != syn accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 53, 80, 443, 853 } add @ip-connlimit-main { ip saddr ct count over 16 } counter reject with tcp reset
tcp dport { 53, 80, 443, 853 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 16 } counter reject with tcp reset
ct mark set 0x1 accept

2
nftables/nftables-ns2.conf
View File

@ -4,12 +4,10 @@ flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
198.98.53.141, # 0.ns2.grapheneos.org
}
define ip6-allowlist-ssh = {
::1,
2605:6400:10:102e:95bc:89ef:2e7f:49bb, # 0.ns2.grapheneos.org
}

16
nftables/nftables-social.conf
View File

@ -3,14 +3,6 @@
flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
}
define ip6-allowlist-ssh = {
::1,
}
set ip-connlimit-ssh {
type ipv4_addr
flags dynamic
@ -84,8 +76,8 @@ table inet filter {
# add connections established without synproxy to connection limit sets with limits enforced
chain input-tcp-service-established {
ct mark 0x1 accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept
@ -94,8 +86,8 @@ table inet filter {
# add connections established with synproxy to connection limit sets with limits enforced
chain input-tcp-service-loopback {
tcp flags != syn accept
tcp dport 22 ip saddr != $ip-allowlist-ssh add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 ip6 saddr != $ip6-allowlist-ssh add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip-connlimit-ssh { ip saddr ct count over 1 } counter reject with tcp reset
tcp dport 22 add @ip6-connlimit-ssh { ip6 saddr and ffff:ffff:ffff:ffff:ffff:: ct count over 1 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip-connlimit-main { ip saddr ct count over 32 } counter reject with tcp reset
tcp dport { 80, 443 } add @ip6-connlimit-main { ip6 saddr and ffff:ffff:ffff:ffff:: ct count over 32 } counter reject with tcp reset
ct mark set 0x1 accept

2
nftables/nftables-web.conf
View File

@ -4,13 +4,11 @@ flush ruleset
table inet filter {
define ip-allowlist-ssh = {
127.0.0.1,
51.222.156.101, # 0.grapheneos.org
167.114.114.114, # 0.releases.grapheneos.org
}
define ip6-allowlist-ssh = {
::1,
2607:5300:205:200::29c6, # 0.grapheneos.org
2607:5300:201:3100::6210, # 0.releases.grapheneos.org
}