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  1. Counting remote accessed hosts

    Hello! I own a hosting company and I often face the situation where my clients using weak passwords end up being broken and at the same time my VPSs become the source of scans on other hosting companies. I managed to block through Suricata the situation in which a client scans a certain IP...
  2. Connect multiple physical servers into one single internal network

    Hello! I would like to receive some suggestions regarding best way of merging few physical servers located in different physical datacenters (under 4ms from one to another). The idea will be to have one single private subnet which will make our life easier in case of a VM migration. It is...
  3. FreeBSD don't start after proxmox 6to7 upgrade

    Hello! Last night we upgraded our proxmox using 6to7 script on a OVH Game server with Ryzen 3800X. After ugrade without any kind of error we rebooted the node and then we were unable to access internet. Fixed internet access by adding MAC address on /etc/network/interfaces with IPMI and when we...
  4. Prevent port scanning from KVM to internet

    Hi, there! I would like to know if exists such a solution to implement at host level any kind of software to detect users who are using our IPs for port scanning and brute forcing servers over the internet. Unfortunately we're very close to lose our leased /24 subnet and we need such a solution...
  5. [OVH] Split /64 into /112 for LXC containers

    Hello! I try to split /64 subnet IPv6 from OVH into /112 subnets for my LXC containers. My server has 2001:41d0:700:4354::/64 and I've set up this configuration: iface vmbr0 inet6 static #address 2001:41d0:700:4354::1 address 2001:41d0:700:4354:ffff:ffff:ffff:ffff...
  6. NAT VM abusing resources

    Hi, guys! I encounter an unpredictibile situation on my small business. After selling over 100 NAT IPv4 VMs with 50 public ports each and /64 IPv6, I've started to receive abuse reports on NAT IPv4 which says that one of my customer scans random hosts for weak passwords and things like this...
  7. IPv6 from Tunnel Broker

    Hello! For the first time I try to use IPv6 with Proxmox (I don't have experience with IPv6 at all). My problem is related to fact I can ping ipv6.google.com from main node but I can't ping from LXC container. When I try to ping from container nothing happens, ping command freezes. Thank you...
  8. LXC shows node's load avg. instead of his own

    Hello! I run some LXC containers and I saw that load avg. on LXC container it's exactly same as node's itself. Can anybody tell me how to fix this issue? Thank you! System packages: proxmox-ve: 6.4-1 (running kernel: 5.4.151-1-pve) pve-manager: 6.4-13 (running version: 6.4-13/9f411e79)...
  9. Proxmox crashed twice in 2 days

    Hi, guys! I have a physical server colocated somewhere in Romania, an HP Cloudline CL3100 G3. It has 2x new SSD disks on RAID1 and 4x refurbished SATA disks on RAIDZ-2, promoxmox installed on RAID1. I use this system linked with whmcs module and in both situations, host node got frozen...
  10. Firewall rules on proxmox host, aplicable for KVM instances?

    Hi! Before explaining what I want to achieve, there is my configuration: - OVH Game server - 16 failover IPs - KVM virtualization, multiple operating systems installed. Now, the goal. I have some troubles with someone who can bypass OVH firewall using Fake IPs + Fake UDP packets and fullfill...
  11. Limit connections per second from proxmox host?

    Hi, guys! I would like to know if it's possible to add limits to each KVM instance directly from proxmox host. What I would like to do, it's to add specific rules for: - limit req/seconds from guests to my VMs (specific port) - limit req/seconds from guests to my VMs but global (no more than X...
  12. CyberPanel, Cloud - Init - KVM template

    Hi, there! I would like to migrate from shared webhosting via CPanel to CyberPanel VMs for each customer. I need some help to figure out steps to achieve this result. What I've found out, are those tutorials: https://whattheserver.com/proxmox-cloud-init-os-template-creation/...
  13. OVH Failover / WTF?

    Hello! I have few OVH subclasses of 16 IPs each. I've configured some KVM machines with DHCP setted up like this # Bind IP by MAC host VM16 { hardware ethernet MAC_ADDRESS; option routers 213.32.6.254; option subnet-mask 255.255.255.255; fixed-address 51.210.XXX.56; option domain-name-servers...
  14. Cloud-init FreeBSD

    #Please move to correct cattegory, I was asleep when I wroted here. Hi, guys! I use cloud-init as KVM template source and it works very well with Linux distributions buth with FreeBSD (from multiple sources) I encounter this problem: /usr/bin/qemu-img resize -f qcow2...
  15. Proxmox + SyS (OVH) Game - Connection drop

    Hi, guys! I've rented an Sys Game dedicated server and It happens few times every day to have network disconnects for every IP addresses (at least tested for failover IP-addresses). Did anyone encountered this kind of situation ? It happens since about 1 month ago, I dont remember if I've...
  16. Selling KVM machines. SWAP on SSD or not?

    Hi guys! I'm preparing my environment to sell KVM machines and I have a small question regarding RAM. I can achieve at same price, one dedicated with 64 GB RAM and 2x 480GB SSD or another one with 32GB RAM and 4x 480GB SSD. Which one will be better to sell as much as possible RAM memory? I was...
  17. [Stuck]GRE Tunnel

    /etc/network/interfaces ### Hetzner Online GmbH installimage source /etc/network/interfaces.d/* auto lo iface lo inet loopback iface lo inet6 loopback iface enp0s31f6 inet6 static address 2a01:4f8:10a:2f8c::2 netmask 64 gateway fe80::1 iface enp0s31f6 inet manual auto vmbr0 iface...
  18. Tunnel: Is it possible?

    Hi guys! Me and my stupid questions are back! I would like to know if is possible to use this situation: Dedicated Server 1 Public IP address Multiple KVM instances (connected to internet with local IP address) VPS Server (other provider) Multiple IP addresses I would like to know if is...
  19. GRE Tunnel for AntiDDoS ?

    Hi guys! I'm totally confused those days about routing/nat and other similar. What I have into GRE tunnel: - Dedicated Server with 1 IP address (minimal AntiDDoS) - 192.168.168.1 - VPS Server with 1 IP address (powerful AntiDDoS) - 192.168.168.2 My requirement it's to route all traffic from...
  20. FreeBSD + CentOS + Windows = LAG?

    Hi guys! I have an dedicated server with: Ryzen 3600X 64 GB DDR4 2x 512 NVMe DC Edition 1Gbps connection I use it for game hosting on FreeBSD and webserver on CentOS. Due of my slow network connection at home, I've installed also a KVM machine with just 4GB RAM, 2x Cores and 200GB NVMe with...

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