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Using passwordless PostgreSQL login with ownCloud

I like PostgreSQL and ownCloud, but I do not like passwords, especially if they have to stored in plain text in a widely readable configuration file. So, I wanted to use PostgreSQL peer authentication with ownCloud as well.

2013-07-23
Ubuntu Apache update broke “Listen” command

[Updated 2013-07-28: Corrected “https” to “http” in Listen] After a recent Apache update, Apache 2.2.22 (on Ubuntu 12.04 LTS “precise”) the following message appeared in the Apache error log: [error] Server should be SSL-aware but has no certificate configured [Hint: SSLCertificateFile] ((null):0)

2013-07-23
Dealing with Apple .mobileconfig Configuration Profiles Quirks

During the preparation of the iOS/OS X SOGo autoconfiguration tool, I noticed a few quirks. In order to make it easier for others to use these profiles, I am documenting what is missing in the official documentation or does not work according to specs (i.e., which is broken), in the hope that .mobileconfig files will…

2013-07-08
Automatic SOGo configuration for iOS (iPhone/iPad) and MacOSX (and more)

Apple provides a lot of autoconfiguration for their groupware (Mail, Address Book/Contacts, iCal Calendar) on their Desktop OS X systems and their mobile devices. However, some of this autoconfiguration was there before there were agreed-upon standards, which especially plagues Contacts and Calendar when working with the excellent SOGo groupware. Especially the AddressBook on OS X…

2013-07-07
teachPress Enhancements for Publication Management (Updated)

TeachPress is a WordPress plugin for managing courses (which I do not need here) and publications with support for BibTeX and referencing publications from posts. The teachPress BibTeX database already contains most of the information about the publications in a structured format. So instead of manually replicating the information in a post, I decided to…

2013-06-30
How to create DNSsec DANE TLSA entries

Rationale One of the most promising features for DNSsec is the ability to tell a client which certificate to expect when connecting via Transport Layer Security (TLS). RFC 6698 specifies how TLS Authentication information can be put into DNSsec. So when you ask for the IP address of the server, you can simultaneously obtain the information which…

2013-06-19
Utilizing Cloud Storages for iSCSI: Is Security really expensive?

2013-03-03
Using a user database backend for Apache authentication

Would you like to use an existing database for Apache authentication, e.g. instead of the htpasswd file in your small WebDAV server?

2012-11-13
A fast and simple WebDAV server in Apache

Are you trying to create set up a WebDAV server with little effort, yet with high performance? Are you doing this for an SME, a small workgroup, or your family? Do you prefer control over your data, so Dropbox is not an option? Do you prefer raw upload and download speed to all the fancy…

2012-11-12
Installation früherer Versionen von Steuersoftware auf MacOSX

Viele (alle?) der kantonalen Steuerprogramme der Schweiz sind in Java programmiert. Leider ist der Installer und das Startprogramm für ältere Versionen unter Mac OS X nur unter PowerPC bzw. der Rosetta-Emulation ausführbar. Die stellt Apple seit vielen Jahren nicht mehr zur Verfügung. Wenn man nun ältere Steuerdaten nochmals auf einem neuen Mac, z.B. unter Mountain…

2012-10-28

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