From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) by lore.proxmox.com (Postfix) with ESMTPS id 838041FF162 for ; Wed, 03 Jun 2026 20:05:11 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 7C77D1593B; Wed, 3 Jun 2026 20:05:08 +0200 (CEST) From: Stoiko Ivanov To: pmg-devel@lists.proxmox.com Subject: [PATCH pmg-docs 15/15] pmgbackup: minimally document support for encrypted backups Date: Wed, 3 Jun 2026 20:03:17 +0200 Message-ID: <20260603180445.98770-16-s.ivanov@proxmox.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260603180445.98770-1-s.ivanov@proxmox.com> References: <20260603180445.98770-1-s.ivanov@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Bm-Milter-Handled: 55990f41-d878-4baa-be0a-ee34c49e34d2 X-Bm-Transport-Timestamp: 1780509860148 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.087 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Message-ID-Hash: WHGIBILFLLWBG2AX6NRFLTWFZZ6LEPTR X-Message-ID-Hash: WHGIBILFLLWBG2AX6NRFLTWFZZ6LEPTR X-MailFrom: s.ivanov@proxmox.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list List-Id: Proxmox Mail Gateway development discussion List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Signed-off-by: Stoiko Ivanov --- pmgbackup.adoc | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/pmgbackup.adoc b/pmgbackup.adoc index e2da5ae..5ecabb2 100644 --- a/pmgbackup.adoc +++ b/pmgbackup.adoc @@ -132,6 +132,22 @@ Retype new password: ****** The fingerprint is optional, if the certificate of the Proxmox Backup Server remote is signed by a CA trusted by {pmg}. +You can also encrypt backups, by autogenerating or providing an encryption key +for a Proxmox Backup Server remote. + +NOTE: Keep a copy of the symmetric encryption key in a secure place, or print +it out. Without the encryption key will not be able to restore an encrypted +backup. Alternatively you can add a master public key to a remote config, and +have the symmetric encryption key, encrypted by the master key and added to +each backup. + +.Example addition of a Proxmox Backup Server remote with autogenerated encryption key. +---- +# pmgbackup proxmox-backup remote add shared-pbs --datastore public --server backup.cloud-provider.example --user 'pmgbackup@pbs!token' --password --encryption-key autogen +Enter new password: ****** +Retype new password: ****** +---- + Additionally, you can configure `prune-settings` for each remote, giving you flexible control over how many backups should be stored on the Proxmox Backup Server over a specific period of time. -- 2.47.3