Problem with Activesync

[_arno_]

Hello,

I installed open-xchange on a Debian 8 Jessie server. But, I have a problem with the connexion by Activesync. I read the documentation en find response everywhere.

When I go to the URL https://domain/Microsoft-Server-ActiveSync I have the error "Proxy Error / DNS lookup failure for: localhost_sync".

Open-Xchange Server version : 7.8.0-Rev12
Operating system : Debian 8 Jessie
Java version : OpenJDK Runtime Environment (build 1.8.0_66-internal-b17) / OpenJDK 64-Bit Server VM (build 25.66-b17, mixed mode)
I have valid licenses Key of Openxchange.

Packages installed :
- open-xchange 7.8.0-12
- open-xchange-admin 7.8.0-12
- open-xchange-appsuite 7.8.0-13
- open-xchange-appsuite-backend 7.8.0-12
- open-xchange-appsuite-help-common 7.8.0-13
- open-xchange-appsuite-help-fr-fr 7.8.0-13
- open-xchange-appsuite-l10n-en-us 7.8.0-13
- open-xchange-appsuite-l10n-fr-fr 7.8.0-13
- open-xchange-appsuite-manifest 7.8.0-13
- open-xchange-authentication-database 7.8.0-12
- open-xchange-authorization-standard 7.8.0-12
- open-xchange-core 7.8.0-12
- open-xchange-dav 7.8.0-12
- open-xchange-documentconverter 7.8.0-6
- open-xchange-documentconverter-api 7.8.0-6
- open-xchange-documents-backend 7.8.0-6
- open-xchange-documents-fonts 1.0.1
- open-xchange-documents-templates 7.8.0-6
- open-xchange-documents-ui 7.8.0-6
- open-xchange-documents-ui-common 7.8.0-6
- open-xchange-documents-ui-editors 7.8.0-6
- open-xchange-documents-ui-static 7.8.0-6
- open-xchange-drive 7.8.0-12
- open-xchange-drive-comet 7.8.0-12
- open-xchange-drive-restricted 7.8.0-7
- open-xchange-eas 7.8.0-6
- open-xchange-eas-provisioning-core 7.8.0-12
- open-xchange-eas-provisioning-mail 7.8.0-12
- open-xchange-file-distribution 7.8.0-12
- open-xchange-freebusy 7.8.0-12
- open-xchange-grizzly 7.8.0-12
- open-xchange-guard 2.2.1-4
- open-xchange-guard-backend-plugin 2.2.1-4
- open-xchange-guard-ui 2.2.1-4
- open-xchange-guard-ui-static 2.2.1-4
- open-xchange-halo 7.8.0-12
- open-xchange-imap 7.8.0-12
- open-xchange-l10n-en-us 7.8.0-12
- open-xchange-l10n-fr-fr 7.8.0-12
- open-xchange-mailfilter 7.8.0-11
- open-xchange-meta-mobility 7.8.0-12
- open-xchange-meta-ui-appsuite 7.8.0-12
- open-xchange-oauth 7.8.0-12
- open-xchange-osgi 7.8.0-12
- open-xchange-outlook-updater 7.8.0-7
- open-xchange-realtime-core 7.8.0-12
- open-xchange-realtime-json 7.8.0-12
- open-xchange-rest 7.8.0-12
- open-xchange-smtp 7.8.0-12
- open-xchange-system 7.8.0-12
- open-xchange-updater-drive 7.8.0-7
- open-xchange-usm 7.8.0-6
- open-xchange-xerces-sun 7.8.0-12

There is no error on open-xchange logs. But there is an error in apache "error_ssl.log".
[Fri Jan 15 17:10:22.509300 2016] [proxy:error] [pid 1040:tid 117145115772672] [client 81.53.239.73:55513] AH00898: DNS lookup failure for: localhost_sync returned by /Microsoft-Server-ActiveSync

Is someone can help me please. Thanks a lot.
_arno_

Ps: sorry for my bad english

[Wolfgang Rosenauer]

Hmm in case you have a license you might be able to contact support as well.

Anyway when I check the quick installation guide for Jessie I find this comment in the Apache configuration:

# NOTE for Apache versions < 2.4:
# When using a single node system or using BalancerMembers that are assigned to other balancers please add a second hostname for that
# BalancerMember's IP so Apache can treat it as additional BalancerMember with a different timeout.
#
# Example from /etc/hosts: 127.0.0.1 localhost localhost_sync

So first check if your proxy_http.conf looks like this

http://oxpedia.org/wiki/index.php?title=AppSuite:Open-Xchange_Installation_Guide_for_Debian_8.0#Configure_services

and if applying the change to /etc/hosts like in the example above helps.
I'm a bit confused about the Apache versions < 2.4 and if this should not be >= 2.4 instead. Please confirm.

[_arno_]

Thank you very much for your response. I'm confuse, I jumped this line in the proxy_http.conf file. Activesync is working fine now. My version of Apache is 2.4.10.

And, about the support with license, I don't know because the society who sold me licenses didn't explain me anything about that. I'll find out.

Again, thank you very much.