Short tip: Changed Owncloud CardDAV/CalDAV URLs

Recently I had issues with configuring CardDAV-Sync and CalDAV-Sync along with Owncloud after a fresh Android installation. Specifying the well-known URLs just produced several error messages inside the app: https://my-server.tld/owncloud/remote.php/caldav/principals/USER/ https://my-server.tld/owncloud/remote.php/carddav/principals/USER/ In the logs I saw a lot of messages about missing sub folders. After searching on the internet, I had a deeper look at the Owncloud web interface and
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Compile Python applications automatically for Windows using GitLab CI

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Some time ago I wrote about GitLab Continuous Integration and explained how code changes can be catched up to create or update software packages on remote systems. In order to communicate with the development systems, GitLab utilizes agents that are availble for plenty of platforms – including Microsoft Windows, we will focus on in this
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vSphere HTML5 Web Client Fling

A couple of days ago, VMware developers announced a new fling called vSphere HTML5 Web Client. Basically, this is a virtual appliance based on SUSE Linux Enterprise Server 12 serving a completely rewritten Web Client. In comparison with the well known Web Client, this client only uses HTML5 and JavaScript – beelzebub Flash isn’t required
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IPFire hardware upgrade

2016 seems to be the year of hardware upgrades for me. After replacing my ESXi host with a VSAN cluster recently, I also had to replace the D.I.Y. router after upgrading my internet connection. At maximum data throughput, CPU load and temperatur are increasing so heavily that other network traffic is slowing down unacceptably. Last
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Restore the MBR of a Linux installation

As preparation for a restore test, I removed the master boot record (MBR) of a Linux system recently: # dd if=/dev/zero of=/dev/sda bs=512 count=1 This command fills the first 512 bytes (containing the partition table and bootloader) of the first hard drive (/dev/sda) with zeroes (/dev/zero). The problem is when you discover that the restore
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Configure LACP under CentOS along with Cisco

If a host has multiple physical network adapters, it is a common procedure to combine the particular links. Mostly, this configuration is chosen to enhance the maximal throughput. Another reason for this is to make network connections more reliable by defining alternative network paths. LACP (Link Aggregation Control Protocol, 802.3ad standard) combines those two approaches
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Forgot vCenter Server Appliance root and SSO administrator password

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Loosing the SSO administrator password of vCenter Server Appliance (vCSA) is really bad. Anyhow, this password can be reset, as far as you still have access to the appliance console – this requires the root password. If you also forgot this one, this is really, really, really bad – but also this happens sometimes in
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