nixos/ntpd-rs: hardening

Changed files
+81
nixos
modules
services
networking
+81
nixos/modules/services/networking/ntp/ntpd-rs.nix
···
""
"${lib.makeBinPath [ cfg.package ]}/ntp-daemon --config=${validateConfig configFile}"
];
+
+
CapabilityBoundingSet = [
+
"CAP_SYS_TIME"
+
"CAP_NET_BIND_SERVICE"
+
];
+
AmbientCapabilities = [
+
"CAP_SYS_TIME"
+
"CAP_NET_BIND_SERVICE"
+
];
+
LimitCORE = 0;
+
LimitNOFILE = 65535;
+
LockPersonality = true;
+
MemorySwapMax = 0;
+
MemoryZSwapMax = 0;
+
PrivateTmp = true;
+
ProcSubset = "pid";
+
ProtectControlGroups = true;
+
ProtectHome = true;
+
ProtectHostname = true;
+
ProtectKernelLogs = true;
+
ProtectKernelModules = true;
+
ProtectKernelTunables = true;
+
ProtectProc = "invisible";
+
ProtectSystem = "strict";
+
Restart = "on-failure";
+
RestartSec = "10s";
+
RestrictAddressFamilies = [
+
"AF_INET"
+
"AF_INET6"
+
"AF_UNIX"
+
"AF_NETLINK"
+
];
+
RestrictNamespaces = true;
+
RestrictRealtime = true;
+
SystemCallArchitectures = "native";
+
SystemCallFilter = [
+
"@system-service"
+
"@resources"
+
"@network-io"
+
"@clock"
+
];
+
NoNewPrivileges = true;
+
UMask = "0077";
};
};
···
""
"${lib.makeBinPath [ cfg.package ]}/ntp-metrics-exporter --config=${validateConfig configFile}"
];
+
+
CapabilityBoundingSet = [ ];
+
LimitCORE = 0;
+
LimitNOFILE = 65535;
+
LockPersonality = true;
+
MemorySwapMax = 0;
+
MemoryZSwapMax = 0;
+
PrivateTmp = true;
+
ProcSubset = "pid";
+
ProtectClock = true;
+
ProtectControlGroups = true;
+
ProtectHome = true;
+
ProtectHostname = true;
+
ProtectKernelLogs = true;
+
ProtectKernelModules = true;
+
ProtectKernelTunables = true;
+
ProtectProc = "invisible";
+
ProtectSystem = "strict";
+
PrivateDevices = true;
+
RestrictSUIDSGID = true;
+
RemoveIPC = true;
+
RestrictAddressFamilies = [
+
"AF_INET"
+
"AF_INET6"
+
"AF_UNIX"
+
];
+
RestrictNamespaces = true;
+
RestrictRealtime = true;
+
SystemCallArchitectures = "native";
+
SystemCallFilter = [
+
"@system-service"
+
"@network-io"
+
"~@privileged"
+
"~@resources"
+
"~@mount"
+
];
+
NoNewPrivileges = true;
+
UMask = "0077";
};
};
};