Proxmox Virtual Environment (PVE for short) is an Open Source Server Virtualization Platform, based on Debian, KVM and (LXC for v4 and above, OpenVZ for versions

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How to upgrade Linux Kernel (Linux vps180 2.6.32-37-pve #1 SMP Wed Mar 18 08:19:56 CET 2015 i686 GNU/Linux)

Good Day! Im having a difficulties in upgrading this server's kernel. Since I am new to this server management. Anyone who have idea to upgrade this type of server ? Linux vps180 2.6.32-37-pve #1 ...
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Is there any downside to removing Sys.PowerMgmt from all Roles?

We use ProxMox (currently version 4.1-1) on a couple of servers here, and this morning I screwed up and shut down the entire system when I meant to shut down a VM. I'd like to avoid doing so in the ...
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27 views

Can't ssh from nodes to VM Proxmox 4.2

SOLVED: I edited the /etc/ssh/sshd_config and changed "PermitRootLogin" to "yes" instead of "without-password". For whatever reason by default it is set to yes for each node, but in the VM it's set ...
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37 views

How to migrate Proxmox VM to other computer in cluster?

UPDATE 2: After getting the error: drbd error: Object not found I tested something out. Initially I had 2 network cables connected between the 2 desktops. 1 of them connected the 2 desktops and ...
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30 views

“Authetication key already exists” error while adding computer to cluster proxmox

I had 2 computers running proxmox which were set up in a cluster called "cluster1". For simplicity the computers were named computer1 and computer2. computer1 was the primary, and computer2 was added ...
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Linux Bridge (vmbr) has no connection to physical NIC [migrated]

I built myself a new home server and wanted to use Proxmox VE. Its Debian based and I have 3 KVM-machines running. Machine 1: "Sophos UTM" has WAN on vmbr0 and DMZ on vmbr1 (192.168.200.254) Machine 2:...
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29 views

How to give VMs access to the internet in an OVH server?

I have a SoYouStart server which is from OVH. I installed proxmox on it and I can access proxmox and use proxmox to access the web just fine. Any VM I install however can't access the wider internet ...
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79 views

How to shrink the disk of a LXC container on Proxmox 4?

I would like to shrink the main disk of a LXC container on a Proxmox VE 4.2, from 30GB to 20GB for instance. Shrinking seems not to be supported yet : $ pct resize <VMID> rootfs 20G unable to ...
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53 views

SELinux on CentOS7-based LXC?

Is there any way to enable SELinux on LXC-based container using proxmox 4.2?
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24 views

Linux & Proxmox: Server does not respond

I have an unspecific problem and would like to get help in finding what's wrong with my machine. There is a server running (4 years old) with linux and proxmox installed (2 VMs on it). A few times a ...
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42 views

VM performance difference after moving to different ProxMox instance

I've got two ProxMox servers and when I moved one of my VMs, it's running into performance issues. ProxMox 3.4 running on Intel Xeon E5606 (2 CPUs, 4 cores each, @2.13 GHz). ProxMox 4.1 running on ...
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25 views

LXC (proxmox) JBD high (100%) IO utilisation

We have a dedicated server running a number of smaller guest VMs containing for example, HTTP server, MySQL and some real-time applications. However we find that JBD inside the guests are often ...
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20 views

Firewall-Rules on Proxmox-Node cause VPS to be offline

I'm using proxmox to virtualize some small machines based on KVM. To do so I created the following network-config on the KVM-VPS: # This file describes the network interfaces available on your ...
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24 views

Can't reach centos server after “Multicast listener report” IPV6

I ran into a problem that occurs only on a few servers. Every 5-6 minutes I lose connection to the server, and it get backs after a few minutes. In most cases it's a VM that is not reachable while ...
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Windows 7 Setup hangs at “Starting Windows” using Proxmox 4.2

I am trying to install Windows 7 on Proxmox Virtual Environment version 4.2-4/2660193c, running on Debian Jessie. I have followed the instructions on this site. I uploaded a known-good Win7 ISO (that ...
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17 views

Network issue with VMs mixing dedicated public IP and port forwarding

I already have a virtual machine with its own public ip address and I would like to set up a new VM using port forwarding from the host. I have two public addresses: X.X.X.146 for the host Y.Y.Y.99 ...
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24 views

Proxmox 3.4-6 VM cannot reach internet

I am new when it comes to dealing with routing in Debian so please pardon my ignorance. I recently set up a Proxmox 3.4 host because it worked more or less out of the box with IP over Infiniband and ...
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45 views

Proxmox: Add IPs from different subnets to LXC-container

I am using proxmox 4.1. If I add IP-addresses to my CentOS-7-LXC I can only do that if this IP is from the same subnet. If I'm using another subnet with another gateway the container is not pingable ...
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206 views

NFS client fails with “Protocol not supported” even though the protocol is listed as available

I set up an NFS serve for Proxmox to remotely backup VM images there. For some reason the Proxmox box won't connect to the NFS server. I tested connecting with another the NFS client on a different ...
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36 views

Connect virtual subnets from two physical host

I have proxmox 4 based on debian 8 on two hosts A and B. Both have two NICs. One NIC from each host is connected via a Crossover cable. Host A: eth0: public IP eth1: 10.0.0.2/24 vmbr1: 10.0.0.1/24 ...
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77 views

ProxMox with PERC 5/i RAID 5

I recently set up a dell 2950 III with ProxMox. I attached an external hard disk that is used to boot ProxMox and I would like to use the RAID 5 array to store data such as images and disks. How would ...
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22 views

Proxmox additional Ip with Port Forwarding

As you see in this configuration i attach vmbr0 to my local area clients and get 192.168.0.x ip and then go internet with eth0 (MASQUERADE and POSTROUTING ). eth0 my main ip its 78.xxx.xxx.178. ...
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41 views

Advice needed about RAID and partitioning new server

first of all i want to appolagize if i doublepost. Plese merge this with similar post. Thank you. Now about the situation and the system we are trying to build and want an advice from experienced ...
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55 views

How do I assign a Public IP to a Container in PROXMOX

I initially created vmbr1 and did not assign it an IP. Used it as a bridge for container that had the public IP assigned to it. It did not work. I don't understand what else needs to be done. auto ...
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30 views

German Umlauts (but only uppercase) are broken

I have a proxmox3 server. I login via SSH. Umlauts (öäüÜÖÄ) works well - nevertheless if upper or lowercase. Then I login in my openvz node (debian wheezy) via: vzctl enter 100 In this node, on ...
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33 views

Forwarding ports from one bridged interface to a guest container on host OS

I have a simple configuration. Mind map how everything look like So I have a structure: Proxmox Host OS (vmbr0, vmbr1) Container 1 (eth0) Container 2 (eth0) The Proxmox networks: vmbr0 ...
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65 views

Proxmox HA Cluster tiebreaker node

I want to setup a Proxmox HA Cluster using a quorum for reducing the risk for a split-brain. So I need 3 nodes. Is it possible for one of the nodes to just act as a tiebreaker node without running any ...
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110 views

Proxmox: Node's load at 70, 2 containers are not responding, but top shows nothing

I got a huge problem. Some of my Proxmox-based LXC-containers are not responding since 2 days if I do not reboot the node. This happens always at the same time in the night (I guess there is ...
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90 views

Elastix behind Proxmox, web interface of Elastix can't open

I have a PVE server with one public IP address, I want to host services on the private IP address, and do NAT and Port-forwarding to redirect the traffic to the VMs with private IP address. I was able ...
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76 views

Proxmox-Server reboots sporadically

I just mentioned that my proxmox-system is rebooting from time to time when performing backup-tasks (bacula, not the proxmox-backup-system). The logs are showing the following: Mar 8 02:30:01 ...
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82 views

Proxmox VE (routing and port-fowarding issue)

I have installed PVE, I received three public Ip address two of them are in the same range, the third one is in different range. I wanted to give PVE host one pub IP to be reachable externally, and ...
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93 views

How can I reconfigure a Linux guest in Proxmox to use a virtio-based HDD instead of IDE?

I'm running Proxmox 3.3.1 to host a virtual machine running Linux (64bit, kernel version 3.2.0). The virtual machine uses a 512GB HDD which was unfortunately configured to use the ide driver when ...
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Proxmox VMs with single IP

so I don't know much about the bridges and all, but I looked around and tried to get it still working. I've got one IP for the server itself and I thought to use second IP on the VMs. I thought I did ...
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254 views

MySQL doesn't start after upgrading to Debian Jessie

I have a server with Proxmox 3.4 with several OpenVZ-containers. Host and all guests are running Debian 7 x64. Now I want to migrate my old setup to a new server with Proxmox 4 (based on Debian 8). I ...
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39 views

ISP secondary IP for internal CT container under Proxmox

My brother and I are trying to get a CT container to resolve from an external IP, but don't want it routed. The information below should help. auto lo iface lo inet loopback iface eth0 inet manual ...
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66 views

Change NAT IP for Proxmox (Keep host IP)

I have a Proxmox server with many IPv4 addresses available to it. As it stands, an instance (Either LXC or KVM) that connects out to the Internet will be connecting from the host's IP address. For ...
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232 views

How slow can be a QCOW2 vm disk (proxmox/KVM) over NFS (dedicated 1Gbit)?

I'm running 3 proxmox 3.4 nodes using NFS shared storage with a dedicated 1GB network switch. root@lnxvt10:~# pveversion pve-manager/3.4-11/6502936f (running kernel: 2.6.32-43-pve) root@lnxvt10:~# ...
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200 views

Proxmox: recreate CT from “.raw” disk image

I crashed a Proxmox 4 server beyond repair and some some of my CTs I don't have a dump file, all I have left is .raw disk image. So my questions are: where is the CT's ".conf" file once /etc/pve ...
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67 views

Linux / Proxmox KVM machine boots unreliable after migrating to other server

I have a KVM VM running on a Proxmox 2.3 server. The Guest OS inside the KVM machine is an Ubuntu 12.04 LTS 64 bit. I took a consistent backup of the VM (Proxmox VE backup function) and restored the ...
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203 views

Proxmox/KVM: Can not clone VM

I would like to create a clone of a KVM machine - yesterday I was able to create a clone of the same machine within some minutes. Now it takes hours and is still stuck an "0%": create full clone of ...
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121 views

Ethernet over GRE bridging - Proxmox

I'm trying to install two proxmox on Online.net server's, and I just realized that their RPN feature doesn't work at all like the OVH vRacks. Since I need the different VM's on both hypervisors to be ...
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444 views

Add a second disk image to a LXC container in Proxmox 4

My LXC containers in Proxmox 4 have a root filesystem stored on the host as a RAW disk image stored in : /var/lib/vz/images/<ct_id>/vm-<ct-id>-disk-1.raw This folder on the host ...
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201 views

Proxmox 4.1 and Dell MD3200i Storage Array

I try add Dell MD3200i Storage Array to Proxmox 4.1. In Proxmox GUI i configure iSCSI and LVM storages, and try create container on attached disk - process hangs on "Creating journal", but in log i ...
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113 views

Proxmox LXC-guest: Cannot open /proc/stat: Transport endpoint is not connected

since a few seconds I can not use htop or top in my LXC-containers: Cannot open /proc/stat: Transport endpoint is not connected Same problem on reloading php5-fpm Dez 18 13:40:31 systemd[1]: ...
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184 views

IOTOP on LXC -> Netlink error

unfortunately I can not use iotop on proxmox-lxc-container and debian 8 template. This is the output: Traceback (most recent call last): File "/usr/sbin/iotop", line 17, in <module> main() ...
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16 views

Does LXC support IPSET6+?

I would like to use a new firewall-extension for PLESK on a Proxmox-LXC. Now the support of the firewall-extension wrote me this message: Does LXC support ipset 6+? If not then I wouldn't ...
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131 views

Windows 2008 partition cloned from physical to VM won't boot

I'm trying to clone Windows Server 2008 from a physical 1TB HDD to a VM with smaller HDD (160GB) in proxmox (KVM). This can't be done with Clonzilla's disk-to-disk mode, so I resized the partition ...
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11 views

configure burst ram for openvz container

Can somebody help me out as to how can we set the burst ram for OpenVZ container using proxmox API. I tried using the following command but with no success: pvesh set /nodes/pve/openvz/{vmid}/config/ ...
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142 views

Hetzner Windows server (On Proxmox KVM) Configure Additional IP

I have a dedicated hosting with hetzner. Additionally i have bought one IP My main IP is: 5.9.x.15 My main subnet is: 255.255.255.224 My additional IP is 5.9.x.13 My proxmox got config like this; ...
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42 views

Server shuts down unexpectedly

I have dedicated server with centOS installed on it. Inside this, I had installed Proxmox VE (Virtual Environment). Again in Proxmox I had installed centos and centos web panel. The server inside ...