Subnet configuration on a Hetzner dedicated root server (EX40) is a bit tricky than a normal additional single ip addresses that you can buy for 1EUR. So I wrote the configuration down: [Read more…]
Since Debian 6 (squeeze) this is the working method to disable permanent IPv6 implementation. This method is also reboot safe.
cat /etc/sysctl.d/disable-ipv6.conf net.ipv6.conf.all.disable_ipv6=1
If you have no possibility to restart your system yet, this change can be made immediately work by executing:
sysctl -p /etc/sysctl.d/disable-ipv6.conf
Anothe method – perfect for firewall scripts:
echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
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 [Read more…]
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 [Read more…]
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.
apt-get install dropbear
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NO_START=0 DROPBEAR_PORT=22 # Alternative dropbear login banner DROPBEAR_BANNER="/opt/dropbear-banner"