Mo's Blog - Security & Stuff

Tagged: bash

My Beautiful Home Network

Projects

My Beautiful Home Network

My beautiful home network is an ongoing project that was inspired by my needs, as a network security professional and as someone who is looking at packets for a living, whenever i had any issues with my home network like having no internet, before calling the ISP, it came like second nature to ping the local gateway first (which was my router at the time, then evolved into a Sophos UTM running on an Oracle Virtualbox Virtual Machine on Ubuntu Linux on an Intel NUC located somewhere at home), then check the status of the ADSL modem, the physical line and the status of the router connected to the ADSL modem, check whether the DNS is working correctly and maybe take some packet captures on the router.

Chrome Dinosaur No Internet

Sophos / UTM

Sophos UTM WAN Link Failover Fix

If the primary ADSL connection fails, the failover succeeds to the standby interface with no issues, what doesn’t work as intended is falling back to the primary connection when it is back up…It can be argued that the monitoring for the primary connection is not setup as intended which is not the case… I actually configured the UTM to monitor the default gateway for the WAN connection (the first hop in the traceroute of the primary ADSL connection ISP) because if i monitor the router itself or any public IP it’s going to be up anyways regardless of the WAN connection being used.