I have encountered a poorly documented issue regarding HP network printers on Linux. Symptoms The printer will be discovered and installed normally through the HPLIP installation tools. However, printing and other operations on the printer won’t work. When attempting to print, HP Device Manager will report a Device Communication Error code 5012. Troubleshooting with the…
Firewalls aren’t as special as they’re made out to be in the business sphere. Sometimes salesmen will try to convince you otherwise, claiming their network appliances use application specific hardware, but teardowns often disappoint. This teardown of the IBM Proventia GX4004 is no different, as the firewall appliance turns out to be a very ordinary…
As smartphones came to be, many common portable devices such as netbooks, palmtops and pocket organizers became obsolete. Today I will present to you one such device – a Tidalwave palmtop computer from 1992.