Questions tagged [hetzner]

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

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Kubernetes load balancer on Hetzner Cloud

I have a kubernetes cluster running on hetzner (using calico with hcloud-cloud-controller-manager/v1.6.1), and I am trying to expose it so I can access it from outside. I added a load balancer to the ...
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53 views

Can we use Indian Server as CDN for German Server?

My client is using Hetzner Cloud Hosting. But his most of the users are from India. So in order to improve the speed we are planning to use $5 Digital Ocean droplet (Indian Data Center) as Proxy with ...
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1answer
130 views

boot from cdrom !! kvm -machine pc-i440fx-2.1 [closed]

I am trying to follow the instructions in the following article https://docs.j7k6.org/vmware-esxi-hetzner-install-kvm-linux/ I start the VM by the following command kvm -machine pc-i440fx-2.1 \ -cpu ...
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Grub2-install: warning: Couldn't find physical volume in Centos 7

After replacing the disk with raid 1, I have this problem: grub2-install --recheck /dev/nvme0n1 Installing for i386-pc platform. grub2-install: warning: Couldn't find physical volume `(null)'. Some ...
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1answer
64 views

Openstack add public IP to an instance

I've got a new server from Hetzner. I installed Ubuntu 18.04 on top of it and then installed Openstack with Devstack. Assume that the server IP address is 88.198.33.30. And, the ISP/Hetzner gives me ...
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207 views

Hetzner vswitch with public addresses using router - how to get to the internet?

I am using a Hetzner vswitch with some public IP addresses and I want to use them on some virtual machines. The whole config is as described in my larger question where I say that it feels like data ...
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40 views

Nginx/Apache2 serves content to IP address but not to domain name, using Hetzner

I've tried this with both apache and nginx servers (separately, not at the same time). Both default servers have served content properly to the IP address but not to the domain name "b-t.dev"...
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1answer
725 views

MySql crashes randomly Out of memory: Kill process 24978 (mysqld) score 99 or sacrifice child

I am running a LEMP server. 2Core Processor, 4GB RAM on Hetzner Cloud. Ubuntu 18.04, PHP7.4, MySql 5.7, Nginx 1.16 But my MySql server randomly gets crashed even when traffic is negligible. It happens ...
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114 views

Cannot mount XFS volume on Hetzner vps

After a volume a resizing i cannot mount an attached volume on Hetzner cloud vps root@MONITOR-BACKUP /mnt # mount -o discard,defaults /dev/disk/by-id/scsi-0HC_Volume_1552045 /mnt/BACKUP-STORAGE mount: ...
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1answer
652 views

Adding ssh keys to a new server without having previously set up users on that server

I've setup a clean new VPS running Ubuntu 20.04 LTS with Hetzner and would like to access it via ssh. Here is what I've tried to do: I have added my public ssh key (passphrase-less) in Hetzner's ...
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261 views

How can i find what generates a NetScan Abuse and how to prevent it?

I have a VPS, on which i have some docker containers running. From time to time i receive a message, similar to the one below, from my VPS provider that a NetScan abuse was detected from my server. As ...
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58 views

How to set up connectivity between virtual machines on different VMware dedicated servers?

I have 3 dedicated servers at Hetzner with VMware vSphere. vmware01: 192.168.2.0/24 vmware02: 192.168.3.0/24 vmware03: 192.168.4.0/24 All servers use Pfsense and have WAN and LAN IP-addresses. Some ...
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31 views

very different apache benchmark results from different locations?

I've got two rather decent dedicated servers from Hetzner.de, in seemingly different datacenters. When I run this on SERVER2: ab -n100 -c5 'https://<SERVER1>/my_script.pl' I get about 25 ...
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349 views

Fedora 32: KVM routed Bridge Network

I'm fighting with the following problem. I got an Hetzner dedicated Server with multiple additional IPs which I want to use for KVM VMs. (MainIP = 1.1.1.1, First additional IP: 2.2.2.2) Before my ...
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68 views

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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1answer
130 views

hetzner private network, 1 docker host, 1 pfsense, I keep getting “TCP Previous segment not captured” from my containers

this is the network design https://imagebin.ca/v/5NNDpuDwq9PT it's hosted on hetzner, 1 firewall with a public facing interface, pfsense. 1 docker host with two interfaces, one connected to the ...
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1answer
476 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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582 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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1answer
268 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
150 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
988 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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350 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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60 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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2k 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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1answer
341 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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1answer
995 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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1answer
423 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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1answer
1k 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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1answer
1k 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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1answer
749 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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317 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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1answer
58 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
4k 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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1answer
200 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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0answers
780 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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1answer
1k 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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1answer
448 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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1answer
614 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
423 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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1answer
408 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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1answer
596 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
294 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
344 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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2answers
5k 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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1answer
849 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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4answers
2k 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
4k 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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3answers
1k 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
509 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 ...