Special offer: Discounts on many dedicated servers!

The summer is coming to an end here in Germany and the vacation time is over as well. This can be frustrating for some and in order to not to let it get that far, we currently have some special offers for our Dedicated Servers, which hopefully will make you feel good. The best thing: Of course you can benefit, no matter where you are from! 😀

From now on and for a short period of time only, we offer you four of our six Dedicated Server models without a setup fee and we have added special discounts for longer contract periods.

You can save cash with one of our starter models, the Dedicated Server Quad and the Dedicated Server Core i7 as well as with our two most powerful servers, the Dedicated Server Dual Xeon and the Dediacted Server 10-Core (plus the upgrade to the 2 x 10-Core): If you go for a one month contract, no setup fee will be charged! If you opt for a longer contract period, you can save up to one additional monthly fee (in case of an annual contract, applies to the basic price of the respective server).

In other words: We credit you up to 110 Euro to your customer account after finishing the setup of your new server!

For more details, please click on "Customize & Order" below the above mentioned servers on our dedicated server overview page.

dedicated server discount

The offer is valid for a short period of time only, so our suggestion is: Go get one (or more!) as long as they are available!

In case of any inquiries, our customer support is available every day - just contact us!

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SRV Records – How do I use them correctly?

Definition of an SRV record

With a Service Resource Record (short: SRV record) you can make services, which are usually available via an IP:PORT combination, reachable using a DNS host name. Important to note regarding SRV record is the fact, that they only work if an application has been specifically programmed to make use of them. Examples for this are TeamSpeak3 or Minecraft. SRV-Records can not be used to point a DNS name to an IP address/port combination for arbitrary use by any application.

Example - Teamspeak:
Usually TeamSpeak is using the protocol UDP over port 9987. If you are running a TeamSpeak instance with the IP every client that wants to connect has to enter the IP:port combination of If you change the port or the server IP, you have to inform everyone about the new combination. With SRV records it is possible to connect to TeamSpeak using a DNS host name like ts.mydomain.com

In general every SRV record contains the same information:


In this example:

_ts3._udp.ts.mydomain.com 86400 IN SRV 0 5 9987 ts.mydomain.com

Values for priority and weight can usually be left at their defaults, they are only used if two or more SRV records with the same name exist. Please note that for the data field, you cannot simply add an IP address here. Instead, you will have to add a valid DNS host name which in turn resolves to an IP address by using an A record, so make sure that the host name you set there exists.

How to create an SRV record at Contabo

  1. Log in into your Contabo customer control panel using https://my.contabo.com
  2. Using the menu item "DNS Zone Management" you can edit a DNS zone and create a new record
  3. The type has to be SRV
  4. Fill in the form. An example can be seen below (please click on the picture in order to increase its size):
  5. The finished record should look like this:

From now on your users can connect to TeamSpeak using only the subdomain ts.mydomain.com

For Minecraft, the record may look like this:

_minecraft._tcp.mc.mydomain.com 86400 IN SRV 0 5 25565 server01.mydomain.com

Please make sure to consult the documentation of your service or application regarding whether SRV records are supported and what scheme they should use.

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Full Monitoring

The optional upgrade Full Monitoring from Contabo is an extensive monitoring tool for your VPS and Dedicated Servers. We are going to present the features of this tool in this tutorial.

Why Full Monitoring?

By the help of Full Monitoring, outages can be detected quickly.

The key benefit of this tool is the immediate notification via SMS (text message) and/or e-mail, should an outage of a server or of only a running service on a server happen. It is like an alert which signals a need for action! We all know and are aware, that a downtime is always a very unpleasant scenario. You can surely understand, that in such a situation it will be beneficial, if you are aware of it immediately. Full Monitoring enables you to react and to take necessary appropriate actions in order to recover all services as soon as possible. In addition other measures can be started, as informing your important customers, for instance.

The administration of services and functions is separated. The contacts - it does not matter if they are e-mail or SMS contacts - can be assigned to the services  which are going to be monitored in any combination.

Furthermore the traffic graphs for VPS and Dedicated Servers can be displayed.

How does Full Monitoring work?

You will receive special login data for Full Monitoring. After logging into Full Monitoring, the screen could look as follows:

We already added two contacts who should be notified. It is only necessary to click on „Add contact“ under „Alert contacts“. Then you can choose the type of contact, with „E-Mail“ and „SMS“ (text message) being the two available options. Please choose the appropriate form of communication depending on your requirements. Under „Services“ you can add services after protocol and port. Particularly, you can assign different contacts to the corresponding services.

In the screenshot you can see that the VPS is online. The services RDP 3389 and http 80 are online, too.

In the following screenshot we reproduce the worst-case scenario when the server is down.


In this example, we would send an e-mail to max.mustermann@contabo.com to alert him. In addition we would send a text message to 4912345678.

As a consequence, the services rdp and http would be down, too. We would inform max.mustermann@contabo.com via e-mail and would send a second text message to 4912345678 that RDP is down. In addition we would text a person at 497654321 that the service http is not working.

Given only the webserver is down, but the server is online, we would only send a
text message to 498754321 in this example.


For Dedicated Servers already known, we can provide traffic graphs for VPS now as well! In this screenshot you can see the graph for different periods: Daily, weekly, monthly and yearly. For each period you can see the consumed bandwidth for in- and outgoing traffic.

We hope we could introduce this upgrade well and you can see the advantages it has. Could we awake your interest in Full Monitoring? Our whole team would be very pleased to answer your questions. You can find this upgrade during your online order under „Services and upgrades“. You can order the upgrade together with your server online, but it is also possible to order it at any time later by e-mail. For any inquiries, please do not hesitate to contact our customer support team.

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We have doubled our data center connectivity to the AMS-IX

Back in February, we have informed you about our new uplink to the AMS-IX. Now in July, we are happy to let you know that we have doubled the connectivity. From now on, we are connected with two 10 Gbit/s uplinks to the AMS-IX!

Located in Amsterdam, it is one of the biggest Internet exchange hubs in the world. Through the AMS-IX, we are connected to the networks of hundreds of Internet service providers worldwide. Doubling the uplink means that the exchange of data between your servers in our data centers and users all over the world is faster and even more direct. Besides of a better routing, the redundancy is improved as well.

Our two data centers in Munich and Nuremberg are now connected to the Internet with 130 Gbit/s. But we do not stop here! In the future, we will continuously add more uplinks in order to keep up with the growth of our data centers!

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Mounting local HDDs via RDP

With RDP it is not only possible to connect to a Windows server. You can also mount local HDDs on the remote Windows server in order to directly transfer data. In this tutorial this process is described step by step.

By the way: In a separate tutorial, we explain how you can connect to your Windows server via RDP. Please read this first in case you are not familiar with RDP yet.

Open your Windows remote desktop connection:

In the sub-menu "Local Resources" you will find the "Local devices and resources" part. Using the "More" button you can choose the HDDs you want to mount on your remote Windows session.

After that you can connect to your server in the way you are used to. During the connection you have to confirm that you really want to allow remote desktop connections to access your local discs.

Once connected you can see the chosen discs directly in the Windows explorer:

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How do I connect to my Windows server via RDP?

This tutorial will show you how to connect to your Windows VPS or dedicated server at Contabo via RDP from different operating systems.

The following scenarios will be covered:

Connections from desktop operating systems:

  • Establishing a RDP connection from WindowsOS (e.g. Windows 7, 8, 10)
  • Establishing a RDP connection from LinuxOS (e.g. Debian, Ubuntu)
  • Establishing a RDP connection from MacintoshOS (e.g. Apple MacBook)

Connections from mobile devices:

  • Establishing a RDP connection from Android based systems (e.g. Samsung Galaxy)
  • Establishing a RDP connection from iOS based systems (e.g. Apple iPhone)


RDP connections from Windows
  • on Windows 7: Please navigate to the "Start icon" of the taskbar and search for "Remote Desktop Connection"
  • bei Windows 8/10: Please navigate to the "Windows icon" of the taskbar and search for "Remote Desktop Connection"

The RDP client should start as follows:

Now you should be able to connect to your server using its hostname (e.g. "vmiXXXXX.contaboserver.net" for VPS or "mXXXX.contaboserver.net" for dedicated servers) or the IP address (e.g. "173.xxx.xxx.xxx"). The RDP session will be established within a few seconds automatically.

Alternatively, you might choose a few options beforehand (e.g. screen resolution and audio settings). Therefore, please click on the "Show Options" button:


  • The screen resolution can be individually modified using the slider
  • If you would like to pass through the audio signal to your local PC, you have to set the "Remote audio playback" function to "Play on this computer"
  • If you would like to make your local printer available on your server, please enable the "Printer" option at the "Local devices and resources" section (Important: The printer device driver must be compellingly installed on your server!)
  • The clipboard is enabled by default, so STRG + C / STRG + V will always work. It can be disabled by disabling its checkbox



If you determine issues while connecting to your server, please find enclosed some information about how to fix them:

1. "Remote Desktop can't connect to the remote computer for one of these reasons":

Causes / Solutions:

2. "The remote session was disconnected because there are no Remote Desktop Licence Servers available to provide a license. Please contact the server administrator."

Causes / Solutions:

Obviously, a terminal service was installed on your server and no active licence server has been assigned yet. After the grace period of 90 respectively 120 days, all temporarily licences will be deleted and all further RDP logins will be rejected.

To fix this issue, you either have to delete the terminal service or the affected Windows Registry key

  • If you rent a VPS, you can connect to your server through VNC to perform the required steps:


  • If you use a dedicated server and you do not have a KVM device attached to your server yet, please get in contact with us at support@contabo.com

* The required server role "Remote Desktop Services" can be deleted at the server manager ("Remove roles and features")
* The affected Registry key can be deleted at the following path:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\RCM\GracePeriod

Important: Please be careful while changing settings at the Windows registry! Please create a full backup of the registry beforehand.

* Now please perform a reboot of your server and you should be able to login to your server afterwards again


RDP connection from Linux

Alternatively, you can also connect from Linux to your Windows server via RDP. There is a command line based program called "rdesktop" and it is usable for all available linux distributions.

  • Installation:

sudo apt-get install rdesktop

  • Start the RDP connection:

rdesktop <IP address>

Now the RDP connection has been established and you can login to your server using the initial login credentials.

Important information:

  • In order to be able to establish a RDP connection, your Linux system must have an X11 server available. It should be installed by default if you already use a GUI (graphical desktop environment - e.g. "Gnome" or "KDE")
  • Please note, it is generally not recommended to establish a RDP connection through SSH
  • Alternatively, there is another program called 'freeRDP', which can be used instead of 'rdesktop'. Please find more information about it at http://www.freerdp.com/


RDP connection from MacOS

In order to be able to establish a RDP connection from MacOS based systems (e.g. Apple MacBook), a RDP client is also required. Please find enclosed a download URL to get the latest RDP client version:


Afterwards, you can start the RDP client following by entering the Windows login credentials (at the "Domain:" field, you can either use the server's IP address or the hostname):

Please always use the latest RDP client version from iTunes, so it is ensured that no connection issues occur!


1. "Remote Desktop Connection cannot verify the identity of the computer that you want to connect to":

=> This kind of error message is mostly caused by an old respectively outdated RDP client version

Causes / Solutions:

  • Please make sure, that you are currently using the latest RDP client version (download-URL above)


RDP connection from Android-based systems

To establish a RDP connection from Google-Android-based systems (e.g. Samsung Galaxy) please use the following RDP client directly from the Google App store. You can always download the latest RDP client version here:



RDP connection from iOS-based systems

Last of all, we would like to inform you about the possibility of how to connect to your Windows server via an iOS-based system (e.g. Apple iPhone).

Please find enclosed the download URL to get the latest RDP client version:


Very important: In order to use the latest RDP client above, iOS version 8.0 is required at least!

If you have any further questions about connecting via RDP to your server or need help, please do not hesitate to contact us at support@contabo.com.


Establishing a connection to your server via SSH

In this tutorial you will find a guide on how to establish a connection via SSH to your Linux server.

Please note that you will have to replace the place holder <IP Address> in the complete tutorial with the IP address of your server.


In case you are using a Linux operating system on your local machine you will just have to start a terminal.

To establish the connection to your server please type the following command:

The option -l defines the user which will be connected to. In this case we will use "root".
The option -p defines the port which will be used for the connection. Here we will use the standard SSH port 22.

Should this be the first time you connect to the server, you will have to accept its SSH certificate by typing "yes".

Please insert your password, which you can find in our e-mail "Your Login Data". Kindly note that SSH will not display any letters or symbols when typing the password. You can also copy and paste your password by using the right mouse key (please make sure not to copy your password with blank characters at the end - you can check so by pasting the password into an empty editor file before using it).

Now, click the ‚Enter‘-key. Once done, you should get access to your server via SSH:

The connection has now been established successfully.


In case you are using a Windows operating system on your local machine, you will have to install a suitable SSH client first.

We recommend to use PuTTy as SSH client:


After installing PuTTy, open the client and enter the IP address of your Server. The port, in this case the standard SSH port 22, can be changed as well if needed.

Click 'Open' to initiate the connection. You can leave all options to default.

Should this be the first time to connect to the server, you will have to accept its SSH certificate:

Afterwards, you will see the following:

Please insert root (login as:) and your password, which you can find in our e-mail "Your Login Data". Kindly note, SSH will not display any letters or symbols when typing the password. You can also copy and paste your password by using the right mouse key (please make sure not to copy your password with blank characters at the end - you can check so by pasting the password into an empty editor file before using it).

Now, click the ‚Enter‘-key. Once done, you should get access to your server via SSH:

The connection has now been established successfully.

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Results of the customer survey 2018

At the end of April, we have asked you - our existing customers - to answer a few questions about us and our services in a survey within your customer control panel. First of all, we would like to take the chance and thank all of you for the huge participation: Even though the survey was online for just a couple of days, 7.148 customers took part in it - an outstanding number of participants!

The survey revealed that 94% of you are very satisfied or satisfied with our services and the recommendation ratio is just as high. We are very happy about that! At the same time, we will work hard in the coming months in order to convince those of you who are not yet fully satisfied with Contabo. We will thoroughly evaluate the results of the survey and consider your suggestions for improvement. After all, it is our company goal to put you, our valued customers, in the center of our attention!

As you also know, we have raffled 3 x 100 Euro among all participants, as a credit note in your Contabo customer account, which will be used to pay for your registered services with us. The winners have been drawn in the meantime and notified by us. Happy about the prize are:

Frank B. from Troisdorf (Germany)
Dragan T. from Skopje (Macedonia)
Matt B. from Warsaw (Poland)

Congratulations to our winners!


New Operating Systems available: Fedora 28 and Ubuntu 18.04

Good news: From now on, we offer you the brand new Fedora 28, it replaces the previous version 27. Furthermore, Ubuntu 18.04 (LTS) is available at Contabo!

Both operating systems can be combined with Software RAID 1 and Webmin. Additionally, Ubuntu 18.04 can also be ordered together with LAMP and Webmin+LAMP. An installation via VNC / SSH is possible for both OS as well.

As an active customer, you can easily install one of these new versions through your customer control panel.

It is especially noteworthy for all of you interested in purchasing our services:
We always offer you a large selection of Linux distributions (as well as Windows Server 2012 and 2016). Just click on "Customize & Order" below your desired (virtual) server model in order to get a detailed overview and select the operating system of your choice!

Please note: You can find further information and a product overview on our website!

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Contabo wins German Data Center Award 2018

Last year Contabo was already honored and received the German Data Center Award 2017 for the modernization of its data center in Nuremberg. Now we took part in this year’s contest as well and faced the competition with our modernization measures that have been recently performed at our data center in Munich.

This year’s ceremony was held on April 24th 2018, and the winners of the “Deutscher Rechenzentrumspreis 2018” (German Data Center Award 2018) were honored. Again, and just like last year, an independent jury of data center experts and planners decided which of the 51 submitted data center projects would receive the award. The jury placed particular emphasis on the innovative to visionary character of the data center projects as well as on the energy efficiency which can be achieved in data center operations.

Once again, we have won the first place in category 6 – “Increase in energy efficiency through reconstruction in an existing data center” – this time with our data center located in Munich, and consequently received the German Data Center Award 2018.

This means that both of our data centers have received the German Data Center Award – a huge acknowledgement of all our modernization efforts in recent years and we are very happy about that.

In the course of the energetic optimization of our now award-winning data center in Munich all chillers which had been in use for cooling the data center were replaced by a groundwater cooling system. Now only a few pumps with a low power consumption are sufficient in order to reliably supply the entire data center with cooling – thanks to groundwater which is cool all year long.
Not only you, our valued customers benefit from this measure due to decreasing energy demand and thus rental costs for the server operation: Due to the low power consumption for the data center cooling, the environment is best protected and the groundwater flows back to the soil unchanged.
All this work was carried out without any interruption of the operation of your servers, thanks to extensive planning and project scheduling as well as precautionary activities. We have thousands of servers online in our data center in Munich, and all these actions were performed noiseless.


The PUE value (PUE = “Power Usage Effectiveness”) of our data center in Munich could be reduced from 1.4 to less than 1.1 and at the same time, the cooling power was increased. Power capacity which was up to now reserved for peak loads of the chillers in midsummer could be used to accommodate hundreds of new servers in the data center. The electricity requirement for cooling the entire data center is thus negligible for us for the first time – throughout the whole year.