Linux

Preferring IPv4 over IPv6 for apt-get

As more and more hosts are moving over to IPv6, you might encounter DNS A records with IPv6 entries. That’s all fine, but sometimes networks or firewall filters are not well configured and you loose connectivity. Sadly, modern GNU/Linux systems prefer IPv6 addresses over IPv4 when being presented with a Read more…

By francois, ago
Linux

NAT with iptables on Linux

Just trying to configure NAT on a Linux Backtrack with two ethernet cards (eth1 is inside and eth0 is outside) and I would like to share here the configuration I made: Activation of the IP Forwarding on the machine Activation of the NAT with itables To display the NAT statistics Read more…

By francois, ago
Linux

Free DNS Servers

I was looking for free DNS Seconday Server to manage some of my domains. It is at that time difficult to find a provider that gives for free such service and that it support DNSSec and/or IPv6 ! Here are some sites with reference to such provider: Frank B. Free Read more…

By francois, ago