These rules allow communication between the components. 3. Dec 3, 2024 · CVE-2025-48983 | Severity: Critical (9. For information on how to configure WinHTTP settings, see Microsoft Docs. For this reason you may need to configure a HTTP/HTTPS Proxy, but the Nov 28, 2011 · Veeam Community discussions and solutions for: Port requirements clarfication of Veeam Backup & Replication. 9) A vulnerability in the Mount service of Veeam Backup & Replication, which allows for remote code execution (RCE) on the Backup infrastructure hosts by an authenticated domain user. If the necessary configurations are not performed, t e backup for global-active device volume that are already operated will stop. Workers The following table describes network ports that must Backup proxy The backup proxy is the component that reads the data from the source infrastructure, elaborates and transfers it to the final destination: either the backup repository or the DR infrastructure (in case of replication). What is the Ports List Finder? The tool brings together all the required ports from all the various Veeam Help Center pages into a single location. Firewall Ports I need to manually enable/add to allow Veeam to talk to my Windows repo? So the guide here mentions 135 and 445 are needed so I've manually created an inbound rule on my new Windows backup repository allowing just those two ports just from the source IP of my Veeam server. The first part was devoted to preparation and the actual upgrade. BLAKE3 Hashing New hashing algorithm that reduces backup proxy and agent CPU usage by up to 30%. 0. Jan 15, 2026 · Communication with Veeam Backup Servers To ensure proper communication between Veeam Agent for Linux and Veeam backup server, you must allow network traffic for the following ports: Jul 29, 2024 · To enable communication between a Windows Server (proxy) and a Veeam Backup Server, you'll need to open the following ports: From Veeam Backup Server to Windows Server (proxy): Ports List Finder In order to access the Veeam Ports finder tool please navigate to https://www. Jan 14, 2026 · Same improvement applies to Linux agents. Workers The following table describes Nov 7, 2012 · Veeam Community discussions and solutions for: Ports needed for remote proxy server of Veeam Backup & Replication Feb 20, 2024 · And, when you install Veeam and its components (Proxies, Repos, etc), the installer already creates needed Windows f/w rules on the servers, as you can see from the Ports page in the Guide (see below): Veeam Ports So theoretically, you shouldn’t need to manipulate your Windows f/w. 0 Refers to connections to the Veeam Backup Repository and Backup Proxy in Veeam B&R version 9. This translates directly to increased backup performance when CPU is your bottleneck. Veeam Backup & Replication uses specific network ports for communication between its backup infrastructure components. Jan 14, 2026 · Practical description of in-place upgrade of Veeam Backup & Replication running on Windows from version 12. Dec 4, 2025 · Veeam Backup & Replication automatically creates firewall rules for the ports required to allow communication between workers and the backup server. 4 days ago · For general requirements for ports that must be opened to ensure proper communication of the backup server with Veeam Cloud Connect infrastructure components, see the Ports section in the Veeam Cloud Connect Guide. With Linux OS, you may need to. The software uses TCP ports 2500 to 5000 for file transfers from a VMware vSphere or ESXi hypervisor. Configure firewalls for seamless communication. 180 or newly 13. g Hitachi Storage Plug-in for Veeam® Backup & ReplicationTM to this release. Note: This vulnerability only impacts domain-joined backup infrastructure servers added to Veeam Backup & Replication v12. Firewall ports for Veeam Backup Repository 9. Nov 8, 2023 · This is the same mode of operation for Veeam Backup & Replication versions 6, 7, 8 and 9 (including 9. This document provides a list of the default ports used for communication with Microsoft Windows and Linux servers, including ports for the backup server, proxy, repository, gateway server, mount server, and more. 2 days ago · For details, see this Veeam KB article. Mar 25, 2025 · Veeam Backup & Replication has different components/toles and not necessary each of them has direct access to the Internet. com and select ‘Ports List Finder’. In this section, we will be providing all the recommendations for proper sizing of this crucial component. veeambp. 5). 4165 to version 13. 1. You can find the full list of Dec 4, 2025 · Veeam Backup & Replication automatically creates firewall rules for the ports required to allow communication between the Proxmox VE server, workers and the backup server. It's not necessary to open the entire range Learn how to create and configure a Veeam backup proxy, choose the right transport mode, and optimize performance with this step-by-step guide.

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