Questions tagged [hetzner]

Hetzner Online AG is a major German web-hosting provider and data-centre operator.

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Having some issues with proxmox bridge on Hetzner

So, i'm having 1 main IP and 1 addition IP that I've ordered for the server. Main IP: xxx.xxx.200.200/27 Additional IP: xxx.xxx.202.175/27 This is my bridge configuration: auto lo iface lo inet ...
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42 views

Virtualizor Hetzner IPV6 subnets

I am trying to configure a Virtualizor instance on a Hetzner machine but I can't make it to work since I need to "nat" the IPV6 subnets. I divided my /64 subnet by multiple /80 subnets and I added a ...
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166 views

set private name server on Hetzner cloud

Default robots dns info is this and it works: $TTL 86400 @ IN SOA ns1.first-ns.de. postmaster.robot.first-ns.de. ( 201208 ; serial 86400 ; refresh 10800 ; retry ...
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105 views

IPv6 connectivity suddenly disappears

In the environment specified below IPv4 purrs like a cat, but IPv6 vanishes after a short time – i.e. even the host can't reach its container via IPv6 over the Docker network. Did I miss something? ...
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1answer
82 views

How is it possible to have a default gateway outside of the network range of any interface?

I always thought that the default gateways has to be on the same network as the server/client trying to connect to the internet. However today I rented a server from Hetzner and the server is able to ...
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1answer
427 views

Proxmox Routed Network Configuration on Hetzner Server

I have a server from Hetzner with Proxmox installed My host machine has an IP address like xx.xx.69.241 I requested some additional IP addresses from Hetzner and these are my additional IP ...
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146 views

Lost connection to the server after adding new bridge to network configuration

In a Proxmox server (Debian), I changed my network config from this: source /etc/network/interfaces.d/* auto lo iface lo inet loopback auto enp0s31f6 iface enp0s31f6 inet static address 88....
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49 views

Is it considered “safe” to run a task with high I/O on a server for 3 days straight, or would you add pauses in it?

I want to hash the contents of 4 million JPEG files taking up 32TB of a 48TB RAID6 partition in CentOS 7. It's a Hetzner SX131 10 x 6TB box. Having run a test on 10,000 files I think the full job is ...
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1answer
393 views

Can I connect a servers from Hetzner cloud to a vswitch

I have some dedicated root servers at Hetzner wich are connected via a VLAN using the vSwitch. Now I would like to know if you can connect servers from the Hetzner Cloud to the same vSwitch so they ...
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142 views

IPv6 routing between Host and Guest

I am currently facing an issue about my current setup. I basically have a dedicated server to which a /64 IPv6 subnet have been assigned (2a01:4f8:221:1e81::/64). Connectivity on the host is working ...
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372 views

How to allow Linux networking into the internet on Hetzner cloud server while the routing table contains only 169.254.0.0 IP?

i am having virtual server from Hetzner and after installing the CentOS 6 linux, i do not know how to make the default installation available from the internet, how to setup the routing. The Hetzner ...
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136 views

Hetzner's installimage uses only one disk

I have a Hetzner server with 7 SSD drives as the following: /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg I am trying to do a Volume Group on it named vg00 that contains Physical ...
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137 views

Hetzner server crash time?

Has anyone noticed that most server crashes at Hetzner occur roughly at 8:00 GMT+3? Like example here What we've got last month at this time: docker "Segmentation fault" Network connection ...
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29 views

VPN connection between distinct cloud instances

What is the recommended architecture for establishing a virtual "local" area network across many servers located in many geographically distinct datacenters and clients (all running linux) through the ...
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379 views

How is preferred_lft set by default for an IPv6?

On Hetzner Cloud with Debian and Ubuntu, I noticed that the default IPv6 has a preferred_lft of 0 second. It is thus "deprecated" and that leads to issues when adding another inet6, because non-...
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467 views

Standard ports for web server

I'm using Hetzner for a server which only needs 80/443 and 22 accessible to the outside world. When I use the Hetzner firewall template, it also adds: protocol icmp, which I think is for ping ports ...
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497 views

Hetzner reported not allowed MAC addresses in subnet

We had email from Hetzner network team asking us not to use MAC addresses belonging to the Virtual Machines belonging to the subnet. We configured Xen server host as a router using this guide. ...
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271 views

KVM host with GNS3 LAB

This is for SDN LAB in the GNS3 with Asterisk. I have KVM physical host in Germany (everyone knows where I guess). I have a GNS3 lab running on Debian VM with some more VMs inside Vbox there. I'm ...
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53 views

KVM guest cant fetch packages thus it's reachable from ssh

I am a bit lost regarding my kvm setup. I rented a root server at hetzner.de and now wanted to setup virtualization using libvirt & kvm. I created a bridge br0 which now holds the static server ...
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2answers
2k views

How to add Hetzner Cloud Disk Volume to extend /var partition?

I have a new Hetzner cloud server and added an extra 50GB disk volume (CEPH) to my server. The default disk is only 40GB. I thought it would be added to the default storage like the traditional ...
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117 views

Debian stuck without any records in syslog

I am having problem with dedicated server I am hosting on Hetzner. I had similar problem few years before with other dedicated one and I am worried if this thing is my fault or someone other's. It ...
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604 views

PfSense(on ESXi) on hetzner, IP Subnet not working

i have one primary IP of Hetzner DS(with ESXi on it, and pfsense). i got a subnet of /29 from hetzner. they say that the subnet IPs must route through Primary IP address of server, like if server IP ...
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378 views

OfflineUncorrectableSector & CurrentPendingSector emails - what should I do?

Running Centos 7: I've just done a yum update followed by a reboot on one of my servers, and when it came back up I got two emails: First: OfflineUncorrectableSector Device: /dev/sdb [SAT], 28 ...
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300 views

KVM: guest with FQDN DNS resolution / no bridge

I have a (Hetzner) server with a public IP of eg. 123.123.123.123, and an additional IP of eg. 456.456.456.456. I want to serve some private webspace apps on 123.123.123.123, including a hidden ...
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472 views

Raid 5 the hard disks on Hetzner

Hi ordered a server from Hetzner and added a 500GB SSD to the server. Ran the installerimage and Im not sure Software Raid is working on all three Hard Drives of mine. How can I add Soft Raid to the ...
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1answer
361 views

Frequent Proxmox server interruptions in Hetzner

Unfortunately, there is a problem with server access at hetzner datacenter for some time. When we connect to the server with a KVM, we find that the server has not crashed, as if the server's network ...
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340 views

KVM public ip setup with subnet /29

I have a dedicated server from hetzner with one additional /29 subnet i have configured a bridge network which looks fine to me 2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq ...
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461 views

Hetzner IP Subnet on Windows 10 VM

I have created a brouter (bridge router) on my CentOS 7 KVM Host machine. I am trying to assign an IP from an addon subnet that Hetzner has provided. The following is the working configuration for a ...
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1answer
197 views

Is it possible to change the IPv6 address of docker0 bridge?

I'm trying to set up a docker based application on a virtual server running Ubuntu. The application is supposed to work with IPv6. No problem, I got a /64 network from my server provider, it is ...
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1answer
245 views

Google Domains & Hetzner

I have a server with Hetzner, and a few domains with Google Domains. I have an Apache server running on port 80, and a Node server running on port 8080. If my server's IP is 192.0.2.4 and my domain ...
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3k views

Hetzner's installimage script, RAID1 hard drives + SSD

I just purchased a server from Hetzner, with two 4TB hard drives and one 1TB SSD. I want to setup the two hard drives (/dev/sda & /dev/sdb) in RAID1 and install the OS on them, and have the SSD (/...
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442 views

Hetzner netscan abuse [duplicate]

A few days back I have received the abuse notification from Hetzner datacenter. There seems to be a netscan going on my server. What I don't understand is that why the destinations are the local ...
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3answers
1k views

Ubuntu full disc encryption on Hetzner Cloud adding add static route in initramfs

I try to setup Ubuntu with full disc encryption on top of Hetzner Cloud. I got everything to work except the network connection in initramfs. Thanks to the UI console its possible to unlock, but I ...
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1answer
3k views

Port can't open on Ubuntu 16.04

I have a Ubuntu 16 installed on a Hetzner's VPS. I want to open port 11121 which I did it several times before on other VPSs. I've tried ufw & iptables but when I check, I see the port is still ...
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1answer
741 views

How to install RDO (OpenStack) in Hetzner?

I have tried to install OpenStack on Hetzner (dedicated server), but it does not finish the installation correctly. I have followed this official guide: RDO Installation The same installation was ...
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2answers
449 views

How to access guest virtual with CentOS using additional ip?

I have a dedicated server in Hetzner. In which I have installed CentOS 7.4, inside it I have KVM with another CentOS 7.4. I have requested an additional ip from Hetzner that has a Mac separated for ...
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2k views

Forwarding traffic with one ip proxmox

I have a hetzner dedicated server, and i've installed proxmox. I have only one ip and i need to forward traffic and ports to VMs. I've followed proxmox network tutorial with no success: can't access ...
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2answers
2k views

Getting Ubuntu 16.04 on a ZFS root on a Hetzner dedicated server

By now, it's well possible to get Ubuntu 16.04 running on a ZFS root-fs. Ubuntu 16.04 has ZFS in the default package manager, and with guides like this, it's not hard to get started. However, all ...
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1answer
101 views

Migrate dedicated Windows server byte to byte

I have remote dedicated Windows Server hosted on Hetzner Online. I need to migrate the box as-is to the new dedicated server, while I will have access to both. I do not have BIOS access, but I can ...
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2answers
2k views

Instruct Hetzner installimage to use SSD as primary OS drive

Purchased a dedicated Hetzner server with 2x small SSDs and 2x large HDDs paired with hardware RAID. Running installimage from Rescue OS shows this as config: # Adaptec RAID (LD 0): no name DRIVE1 /...
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2answers
745 views

How to identify slow connection with IPv6

I'm a Hetzner customer, and I have twice had the same problem when using their standard Ubuntu 16 LTS image on a new server. When I try to download packages it is incredibly slow and will often sit ...
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105 views

Problems making outgoing connections on Debian 8.7

Please have patience, for I know not what I'm doing. I have a server (at Hetzner.de) that otherwise run fine - reachable from where it needs to be reachable from and so on. But - when I try to ...
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2answers
574 views

How do I block my server from performing port scans? [duplicate]

I have recently started renting a server from Hetzner.. I get continuous emails telling me that my server is performing scans on other servers: "Your server with the above-mentioned IP address has ...
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1k views

vmware esxi + pfsense + 2 subnets with hetzner

I have a root server at hetzner, where I got the following setup: Main IP (VMWare box): 78.xxx.xxx.107 WAN IP (PFSense WAN interface): 78.xxx.xxx.121 Subnet 5.xxx.xxx.144/29 Current setup of PFSense ...
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1answer
322 views

IPv6 in XenServer Guest stops working randomly

My XenServer 7.0 VMs running Ubuntu 16.04 with kernel 4.4.0 decide to cease receiving IPv6 packets shortly after restarting the whole machine or resetting the network interface. While everything ...
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2answers
744 views

Access to Guest VM via additional public IP

I have a CentOS dedicated server (Hetzner): IP: aa.bb.cc.16 Gateway: aa.bb.cc.1 Netmask: 255.255.255.255 and additional IP (guest VM (libvirt) with Debian installed): IP: aa.bb.cc.61 Gateway: aa.bb....
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1answer
109 views

How to investigate a server outage?

I know, the question is kinda generic, but I really can't be more specific because I simply have no idea what's going on: It has now happened twice (once on our live server and once on our test ...
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2answers
4k views

hetzner default nameservers not always resolving

I have couple of Hetzner 'root servers' (as they call it - dedicated co-located linux machines) and all of them experience the same problem (which i simply do not fully understand). The domain www....
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1answer
648 views

Setting up RAID monitoring on Hetzner server

We are using Hetzner server for our application which is build in Elixir Phoenix. when I do lspci | grep RAID then the results are 02:00.0 RAID bus controller: LSI Logic / Symbios Logic MegaRAID ...
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3k views

DNS issue with Failover IP from Hetzner

Assume we have two servers A and B with 'real' and external IPs and we can switch the so called 'failover ip' (W.X.Y.Z) to point to a specific external IP of A or B. This works from the 'outside' and ...