Over the holidays, I had a user experience and attempted browser hijacking. It appeared to have bypassed my squid proxy. My updated configuration now sends all web access via squid. The old firewall rules, that allowed direct access to the Internet, have been replaced with a transparent Squid proxy. This runs on my existing Squid Proxy using another port.
As the IPv4 addresses begin to run out I finally invested the time to investigate and implement IPV6. As my ISP has not yet announced the availability of IPV6 addresses I chose to implement a 6to4 tunnel. This is simple to implement, and currently well supported. My external firewall is an ASUS wireless router running… Continue reading Implementing IPv6 6to4 on OpenWRT
I found the networking configured by libvirt (KVM) did not allow me to firewall the network as I desired. I use Shorewall for firewalling, and DNSMasq for internal DNS and DHCP. After a little experimentation, I found that I could configure Ubuntu to create the network. This allows me to get a reliable firewall configuration with a… Continue reading Manual networking for KVM
To enable for Internet chat I set up Google Chat and Skype. My firewall rules have been extremely restrictive with only known and approved services allowed to connect. Google Chat installed with no noticeable impact to the firewall. Things did not go so well with Skype. The installation of Skype resulted in lots of warnings… Continue reading Firewalling Google Chat and Skype