aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorFranck Cuny <franck@fcuny.net>2025-08-20 20:42:27 -0700
committerFranck Cuny <franck@fcuny.net>2025-08-20 20:43:32 -0700
commit552e62b8ae7f262a9246ba98142606512c018668 (patch)
tree4624c548e25082354591de613c3513931f281283
parentbump sapi to 1.2.10 (diff)
downloadinfra-552e62b8ae7f262a9246ba98142606512c018668.tar.gz
initial configuration for fail2ban
We need to ensure the firewall is enabled and let's ensure that we open the port for SSH.
Diffstat (limited to '')
-rw-r--r--machines/nixos/x86_64-linux/do-rproxy/default.nix1
-rw-r--r--profiles/core/ssh.nix2
-rw-r--r--profiles/network/fail2ban.nix15
-rw-r--r--profiles/network/firewall.nix2
4 files changed, 19 insertions, 1 deletions
diff --git a/machines/nixos/x86_64-linux/do-rproxy/default.nix b/machines/nixos/x86_64-linux/do-rproxy/default.nix
index 949745f..159c4fd 100644
--- a/machines/nixos/x86_64-linux/do-rproxy/default.nix
+++ b/machines/nixos/x86_64-linux/do-rproxy/default.nix
@@ -30,6 +30,7 @@
"${self}/profiles/nix/gc.nix"
"${self}/profiles/network/networkd.nix"
"${self}/profiles/network/firewall.nix"
+ "${self}/profiles/network/fail2ban.nix"
"${self}/profiles/services/podman.nix"
"${self}/profiles/programs/fish.nix"
./profiles/caddy.nix
diff --git a/profiles/core/ssh.nix b/profiles/core/ssh.nix
index f8c899a..b4c8772 100644
--- a/profiles/core/ssh.nix
+++ b/profiles/core/ssh.nix
@@ -1,5 +1,7 @@
{ lib, ... }:
{
+ networking.firewall.allowedTCPPorts = [ 22 ];
+
services.openssh = {
enable = lib.mkDefault true;
settings = {
diff --git a/profiles/network/fail2ban.nix b/profiles/network/fail2ban.nix
new file mode 100644
index 0000000..6aa6613
--- /dev/null
+++ b/profiles/network/fail2ban.nix
@@ -0,0 +1,15 @@
+{ ... }:
+{
+ services.fail2ban = {
+ enable = true;
+ ignoreIP = [
+ "10.100.0.0/24" # wireguard
+ ];
+ bantime = "1h";
+ bantime-increment = {
+ enable = true;
+ maxtime = "168h";
+ factor = "4";
+ };
+ };
+}
diff --git a/profiles/network/firewall.nix b/profiles/network/firewall.nix
index 1b30c84..b29dc31 100644
--- a/profiles/network/firewall.nix
+++ b/profiles/network/firewall.nix
@@ -2,7 +2,7 @@
{
networking = {
firewall = {
- enable = false;
+ enable = true;
allowPing = true;
logRefusedConnections = false;
};