Archive for the 'Debian' Category

Internet Super Server

super-server

Inetd listens for connections on certain sockets. When a connection is found on one of its sockets, it decides what service the socket corresponds to, and invokes a program to service the request. The server program is invoked with the service socket as its standard input, output and error descriptors.

Essentially, inetd allows running one daemon to invoke several others Continue reading ‘Internet Super Server’

Verifying Private Key matches a Certificate

Certificate

If you get a certificate from a customer and you should implement it in some piece of software (for example nginx). The first step is to compare the received files.
After this check the displayed hash should Continue reading ‘Verifying Private Key matches a Certificate’

Alternative SSH-Server – Dropbear

Dropbear is a relatively small open source SSH 2 server. It runs on a variety of POSIX-based platforms.

The perfect environment for this server could be a little low-end system like your mobile phone or BeagleBone.

Installation:

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apt-get install dropbear

Configuration
vim /etc/default/dropbear

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NO_START=0
DROPBEAR_PORT=22
# Alternative dropbear login banner
DROPBEAR_BANNER="/opt/dropbear-banner"

Upgrade Debian squeeze to wheezy

Attention this tutorial was written for ARM-Based systems in my case it was a Trim-Slice system, without MBR (without grub). It was a plain Debian without Kernel and boot loader
Continue reading ‘Upgrade Debian squeeze to wheezy’

Roundcube remove server field

Roundcube is web based open source multiuser IMAP client, yesterday I upgraded my older installation to a new stable version 0.8.2.

After successfully installation I was able to see a new redesigned login window with stupid server field. Continue reading ‘Roundcube remove server field’