Recently I stumped upon the following error while creating GPG keys for signing self-created RPM packages :

1can't connect to `/home/su-rpmdev/.gnupg/S.gpg-agent': No such file or directory
2gpg-agent[14392]: command get_passphrase failed: Operation cancelled
3gpg: cancelled by user
4gpg: Key generation …

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OpenVPN …

nslookup and ifconfig are two well-known tools for configuration the network of Unix/Linux hosts and checking whether DNS is working properly.

ifconfig was part of the 4.2BSD distribution in 1983 for the first time and quickly became the standard tool for network configuration - even commerical Unices like Solaris or …

It's doubtless that Ubuntu is one of the most innovative Linux distributions - it made Linux desktops becoming more user-friendly and - thanks to this - raised the acceptance for end users in the last years.

Currently the gossip factory is working overtime again - some reliable sources announced that some big strategy …

If you install and configure a Postfix mail server for relaying mails using an external smarthost you might be puzzled about the following error message:

1Mar 19 17:00:22 hostname01 postfix/smtp[2003]: warning: SASL authentication failure: No worthy mechs found

The reason for this issue can be really trivial - in my …

Recently I had problems with installing Oracle 11gR2 Express Edition on CentOS 6.4.

The installation of the RPM package worked but the database configuration crash with the following error:

1# service oracle-xe configure
2...
3"Database Configuration failed.  Look into /u01/app/oracle/product/11.2.0/xe/config/log …

Currently I'm implementing a IPSec tunnel between my and another flat. After my first plan, using an already existing Raspberry Pi as IPSec gateway, fizzled after plently of failed tries I decided to implement a router-to-router solution.

The center of my network is a ALIX.2D13 which is used as IPCop to offer DNS, NTP …