I've just updated my DIY secure pseudo-DDNS setup using ssh article/HOWTO a bit, in order to make it simpler to set up (no more extra scripts required) and a bit more secure (by using command= and no-port-forwarding,no-X11-forwarding,no-agent-forwarding in the /home/user/.ssh/authorized_keys file, for instance).

If you've considered employing such as solution please revisit the article for updated instructions.

Here's a quick HOWTO for setting up your own secure pseudo-dynamic DNS (DDNS) server.

It's not a "real" DDNS service, i.e. you won't be able to use standard DNS tools or protocols to talk to the server, but it covers 98% of all functionality I expect from a service such as DynDNS or similar ones: It tells me the IP address of a certain box which doesn't have a static IP address (e.g. my home-server).

Requirements

You'll need:

I’ve recently been tasked on implementing a linux vpn client for our IPSEC/L2TP based vpn. This task would have been extremely difficult if not for the efforts of Jacco de Leeuw (for his “Using Linux as an L2TP/IPsec VPN client” documentation) and Scott Myron et al. from Indiana University (“Linux L2TP over IPsec VPN Script for IU”).

Nuovo kernel nuova patch per il Cisco VPN Client che grazie ancora ad Alexander torna a funzionare senza problemi, ecco i passi da seguire per patchare il vostro client:

1. Untar the VPN Client

# tar xzf vpnclient-linux-4.8.01.0640-k9.tar.gz

2. Download the patch

# wget -q http://projects.tuxx-home.at/ciscovpn/patches/vpnclient-linux-2.6.24-final.diff

3. Change to the vpnclient diretory

# cd vpnclient

4. Apply the patch