3 ms·
once upon a time in another life it seems like, we had a modem hooked to a serial multiplexer in the "core room" in the library, and I swear once I used that to
by tingletech 6y ago
once upon a time in another life it seems like, we had a modem hooked to a serial multiplexer in the "core room" in the library, and I swear once I used that to reboot a solaris machine to single user mode, but I probably telnet'ed in (this was before ssh) and then did the init 1 or whatever and then dialed in to the serial multiplexer.
- wahern 6y agoI once had a second-hand Sun Sparc system, and several Sun amd64 systems (discounted for startups), and I remember Sun having a fairly sophisticated serial-attached firmware console. Though a fail-open default configuration that permitted trivially bypassing authentication seems more like something one would see w/ an x86 BIOS or bootloader. I wouldn't claim the serial-attached bootloaders on my x86 lab machines don't somehow permit bypassing login(1) authentication. But at least w/ EC2 and other hypervisors that element should be out of the equation.