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    Proxmox hardening - Proxmox iso vs Debian iso?

    Apples and oranges. You are comparing PRODUCT (based on the debian + ubuntu) with pure OS (debian).
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    PDM 1.0.1 unable to add AD realm with anonymous search

    PVE (9.1.1): domains.cfg: ad: SUB.EXAMPLE.ORG comment AD authentication domain sub.example.org server1 fqdn1 base_dn DC=sub,DC=example,DC=org case-sensitive 1 default 1 mode ldaps server2 fqdn2 user.cfg...
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    PDM 1.0.1 unable to add AD realm with anonymous search

    AD realm is created manually in domains.cfg. This works Editing via gui "Sync options" failing. "Sync" via gui Realms failing - unedited error message: 2025-12-10T10:53:48+01:00: this is a DRY RUN - changes will not be persisted 2025-12-10T10:53:48+01:00: TASK ERROR: LDAP operation result: rc=1...
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    Proxmox Datacenter Manager 1.0 (stable)

    Any option to have "cluster name" or alias for cluster in remotes? Having cluster hidden under hostname is little confusing...
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    PDM 1.0.1 unable to add AD realm with anonymous search

    With manual "base-dn" configuration and any change in the "Sync Options" api error (status = 400: Could not search LDAP realm, base_dn could be incorrect: LDAP operation result: rc=1 (operationsError), dn: "", text: "00002020: Operation unavailable without authentication": rc=1...
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    PDM 1.0.1 unable to add AD realm with anonymous search

    Adding domains.cfg with "base-dn" works. But with "base_dn" don't: api error (status = 400: parsing "/etc/proxmox-datacenter-manager/access/domains.cfg" failed: line 2 - unknown property 'base_dn') The returned error in the first post use "base_dn". Next, in the "Sync options", when trying...
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    PDM 1.0.1 highest usage bars are bad readable

    Hi, those bars are bad readable. Can you please think about better coloring schema to differentiate usage? I am not blind but in the first two it hardly to see some orange spikes or so. is
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    PDM 1.0.1 unable to add AD realm with anonymous search

    Hi, trying to add AD realm with anonymous search (without bind user): api error (status = 400: Could not search LDAP realm, base_dn could be incorrect: LDAP operation result: rc=1 (operationsError), dn: "", text: "00002020: Operation unavailable without authentication": rc=1 (operationsError)...
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    Proxmox Datacenter Manager 1.0 (stable)

    Why PDM use by default nicX variant as network interface name instead ensX as PMG, pve VMs etc? When trying to add AD server, it doesn't work in anonymous mode - but almost the same PVE gui configuration is working, only one difference is a field for base_dn.
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    Multipath configuration to Pure storage array (VLANS)

    Your SAN and iscsi_* are on the same vlan, so if you can't ping, your L2 doesn't work. Check tcpdump for arp and fix firewall/network config.
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    Non cluster migration lvm disk slowdown data transfer to zero

    It looks as https://forum.proxmox.com/threads/test-migration-stuck.168776/
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    How to change to 10Gbps NIC Card option for better migration performance

    Really HP G6 (super old server) and SSD? DId you even tested disk performance on the host?
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    Can I install molly-guard on a pve node?

    Define "accidental reboots". User Via ssh? Install it. User via gui? Don't know.
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    VLANs working, but not the way they should?

    It's all about where is vlan tagged and when it's native vlan vs vlan on port/bridge. If esxi vswitch required vlan id for every vnic, linux standard/vlan-aware/openvswitch allow all variants.
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    Help with cluster network optimization

    PVE/ssh by default listen on all interfaces, so it's possible to connect via mgmt, corosync, storage etc IPs. If you don't need very high performance (100 Gbps networks), i will use 9000 only on limited scope, for example, dedicated vmbr/vlan for the storage.
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    3 servers, 3 cables, 1 ceph network?

    Depends on nic utilization, but we use the switch way for our 3 nodes cluster: 1x lacp (2 ports) with vlans for management (= ceph public), for vm, for corosync, etc 2x lacp (2 ports) with vlans for corosync, for ceph storage Mesh is for small number of nodes or when the switch is too costly...
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    Second vmbr and NIC defeats the first in terms of WebUI, SSH

    I am not using such config variant, so i can theoretize it looks ok. But i am using vlans everywhere and never assign ip to bridge, but using subinterface every time. Anyway, PVE can access multiple networks without fw/router. For nfs access you even don't need to have bridge - if physical card...
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    bond health check

    options: script it use mlag switches multipath etc etc
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    Outgoing mail from internal servers rejected with “Relay access denied” in PMG

    PMG is mainly for mailserver to mailserver communication. If you are trying sending mail from non mailservers, send those mails to exchange first. Or https://www.postfix.org/SMTPD_ACCESS_README.html#relay and test.