Merge pull request #188174 from yayayayaka/matrix-synapse-systemd-hardening
nixos/matrix-synapse: Harden systemd serivce
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commit
1652bbcfc3
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@ -465,6 +465,12 @@
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guide</link> on how to migrate your Neo4j instance.
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</para>
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</listitem>
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<listitem>
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<para>
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The <literal>services.matrix-synapse</literal> systemd unit
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has been hardened.
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</para>
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</listitem>
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<listitem>
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<para>
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Matrix Synapse now requires entries in the
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@ -162,6 +162,8 @@ Use `configure.packages` instead.
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- Neo4j was updated from version 3 to version 4. See this [migration guide](https://neo4j.com/docs/upgrade-migration-guide/current/) on how to migrate your Neo4j instance.
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- The `services.matrix-synapse` systemd unit has been hardened.
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- Matrix Synapse now requires entries in the `state_group_edges` table to be unique, in order to prevent accidentally introducing duplicate information (for example, because a database backup was restored multiple times). If your Synapse database already has duplicate rows in this table, this could fail with an error and require manual remediation.
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- The `diamond` package has been update from 0.8.36 to 2.0.15. See the [upstream release notes](https://github.com/bbuchfink/diamond/releases) for more details.
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@ -759,6 +759,33 @@ in {
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ExecReload = "${pkgs.util-linux}/bin/kill -HUP $MAINPID";
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Restart = "on-failure";
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UMask = "0077";
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# Security Hardening
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# Refer to systemd.exec(5) for option descriptions.
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CapabilityBoundingSet = [ "" ];
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LockPersonality = true;
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NoNewPrivileges = true;
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PrivateDevices = true;
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PrivateTmp = true;
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PrivateUsers = true;
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ProcSubset = "pid";
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ProtectClock = true;
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ProtectControlGroups = true;
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ProtectHome = true;
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ProtectHostname = true;
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ProtectKernelLogs = true;
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ProtectKernelModules = true;
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ProtectKernelTunables = true;
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ProtectProc = "invisible";
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ProtectSystem = "strict";
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ReadWritePaths = [ cfg.dataDir ];
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RemoveIPC = true;
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RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
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RestrictNamespaces = true;
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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SystemCallArchitectures = "native";
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SystemCallFilter = [ "@system-service" "~@resources" "~@privileged" ];
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};
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};
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