Tags » Sysctl

Using Odroid as IP Router

I purchased an Odroid-XU4 for ca. 80 EUR including power-supply and case from Pollin. The original manufacturer is hardkernel. I intended to use this small… 3,043 more words


HPOM (xpl-394) semget operation failed.

Creating directories under OvDataDir
Directory creation under OvDataDir completed.
Creating configuration files.
Updating XPL configuration.
(xpl-394) semget operation failed.
(RTL-28) No space left on device…

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Linux freeze on high memory consumption

Sometimes working with virtual images, R or python, I can see that the memory load is really high and then the system becomes completely irresponsible. This post will show you how to optimize memory management in linux so the system does not freeze. 833 more words


Setup HA-Proxy with Keepalived

Two Ubuntu 14.04 servers

hostnames and IP addresses:

    haproxy1 (
    haproxy2 (

We’ll also need to allocate a third IP address to use as the virtual IP address (VIP).   402 more words