How to provide DNS server addresses to IPv6 clients using Router Announcements.
Back up Windows PCs and Laptops using BackuPC. Includes installing rsycnd on Windows.
Set up a BackupPC Server on Ubuntu. Includes configuration of Linux and OpenWrt clients using rsyncd.
Replacing 6to4 tunnel with 6in4. IPv6 enabling Bind, Exim, SPF, Squid, and updating Databases containing IP addresses.
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 […]
As the IPv4 addresses begins to run out I finally invested the time to investigate and implement IPV6. As my ISP has not yet announced 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 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 […]
I find it useful to have a remote desktop to my Ubuntu systems. On secure connections I have been using VNC via xinetd. Connections with xrdp where possible, but it wasn’t launching the desktop for the connection. For secure terminal connections, I stick with with ssh. All these connection have a login at the start […]
Cfengine is a declarative system configuration tool. This helps apply standards to system configuration. The configuration files specify the desired configuration and the engine applies these specifications to the system. It is useful to: Distribute configuration files; Install standard packages (including on Debian and Ubuntu with code provided here); Cleanup old files; and Ensure certain […]
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 […]