It's no surprise that Linux makes a great router and firewall. A lesser-known fact is that you also can use Linux as an Ethernet bridge and VLAN switch, and that these features are similarly powerful, ...

For years, we used to have a plain-old ADSL in the office—fast download speeds, slow upload, high latency—all that at the cost of $1/GB. We have had so many problems with performance and reliability ...

The subinterface can then be managed using standard Linux tools (e.g. ip), as any other network device. In Linux, it's not possible to create a subinterface that sends and receives only untagged ...