ACOnet is the acronym for "Austrian Academic Computer Network" and represents the austrian national research an education network (NREN). ACOnet provides a powerful and resilient backbone network infrastructure with a special focus on good national and international connectivity. see the profile

At the moment there are about 100 ACOnet participants in Austria: univeristies, universities of appied sciences, dormitories, regional school-networks, research facilities, libraries, museums, hospitals, Austrian Federal Computing Centre, Federal Chancellery, ministries, magistrates etc. participants list

ACOnet is situated at 17 locations in Austria. An overview of these locations is given in this table. A graphical view of the ACOnet Backbone with the ACOnet PoPs (Points of Precence) is shown in the topology.

The ACOnet participance includes a number of services for example TLS/SSL Certificates, Closed User Groups, eduroam, ACOnet-CERT, etc. more details at Services

• fail-safe high-performace infrastructure
• unlimited data transfer between ACOnet participants and participants of the international reserach network association
• support and cooperation with individual projects of participants
• VPN and Closed User Group-Services (e.g. govIX)
• global IPv4/IPv6 Connectivity
• not overbooked, flatrate-premium-internet service, 200% oversubscription possible

Find the requirements of an ACOnet participance in the german documents ""Grundsätze für die Teilnahme" und "ACOnet Acceptable Use Policy". to the documents

To become ACOnet participant, please read first the "Grundsätze für die Teilnahme" and the "ACOnet Acceptable Use Policy". In addition please fill in the form "Verienbarung fuer Teilnahme" and send it via snailmail to ACOnet. Find the postal address here. to the documents incl. more information about the participance

Yes, the federal ministry of Science and Research funds Austrian dormitories. For this purpose the dormitory agency has to apply for an ACOnet connection including commercial internet bandwith depending on the number of beds. More about this can be found on the german page Studierendenheime.

The VCampus-NightLine allows dormitories connected to ACOnet, to use a higher bandwidth during night hours and on weekend, without any extra costs. more information about the NightLine (german only)

There is a list of all dormitories connected including their agencies.

Class of Service (CoS) is a mechanism to mark data packets depending from where they come from. Data packets coming from commodity sources are limited to the subscribed bandwidth (+ max. 200% burst capacity). Data packets marked as scientific are not limited by ACOnet, but only by the capacity of the last-mile link to the participant. more information about COS

Either per e-mail at noc(at)aco.net or during our office hours (Mo-Fr 6:00 AM - 3:00 PM UTC) under the phone number +43 1 4277 14030. Out of working hours exclusively in case of emergency you can leave a message which will inform the ACOnet-Operators. In sufficiently urgent cases an operator will get back to you. contact information

If your question concerns .ac.at domains, please ask the domain administration department of the University of Vienna: domain-admin(at)univie.ac.at. In case your question concerns an .at domain, you can not ask ACOnet, but the registrar nic.at.

To apply for a certificate fill in the online form. A portal account is not necessary. Assistance can be found at: TCS-Help (german only). After sending this request a TSC Administrator of your organization will decide about acceptance or denial of your certificate. You will be notified via e-mail.

To be listed there a supplemental agreement has to be signed by the ACOnet participant and ACOnet.
If you are not staff member of the IT department of your organization, please ask first there whether such an agreement has been sigend.
For IT-Staff:
If you have already sent the agreement to ACOnet and didn't get a reply for several days, please contact admin(at)aco.net or: +43-1-4277-14030

In case a certificate is expiring, the requester will be notified by e-mail. To ensure that this mail will reach the right contacts (eg. the e-mail address of the requester is out of use) this groupaddress gives us the possibility to inform a group of people about the expiration.

ACOnet TCS Certificates are exclusively for ACOnet Participants. For that purpose a supplemental agreement is necessary. This agreement (ACO-Certificates_v2.pdf) has to be filled in and signed by an authorized person of the ACOnet participant. In addition it has to be send by mail to ACOnet. Our postal address can be found on the contact page. To fill in this form completely 2 people of the ACOnet participant have to own a portal account or apply for one to become TCS Administrator. (see the next question: What is a TCS Administrator?)

TCS Administrators have a special site in the ACOnet Portal where they can accept oder deny applied certificates of their ACOnet participant. To use the Certificate Service an ACOnet participant has to nominate 2 TCS Administrators in the supplemental agreement.

No, to apply for a TCS certificate a portal account is not necessary. The webform is situated in the public area of the ACOnet website at: webform

Most probably you have forgotten to link the intermediate certificates. Please follow the instructions in the TCS-Help (german only). it is essentially important that both intermediate certificates are linked on the server.

Browsers do cache various certificates in various ways. In this case it is most probable, that firefox had the intermediate certificates in the cache already and therefore it could verify the certificate. (view TCS-Help - german only)

Thats described in the TCS-Help (german only)

Comodo has provided a guide to solve this problem: Comodo Support

No. The TCS does not support wildcard certificates.

The web portal provides ACOnet participants exclusive access to technical and administrative Information. It contains connection statistics and a network monitor. more information about the web portal

The login area is only accessible for ACOnet participants. Staff members of an ACOnet participant can apply for a personal account. Also network operators of dormitories conntected to ACOnet can apply for a restricted access. Group accounts are not possible.

Please fill in the portal account request form and send it exclusively per e-mail to webmaster(at)aco.net