North American Network Operators Group|
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Re: SSH on IOS (was RE: ABOVE.NET SECURITY TRUTHS?)
>Careful on this. There are a number of systems out there (Sun's in particular) >that equate toggling on the serial line to a halt/shutdown command. Imagine >your surprise when you reboot your cheap terminal server only to discover your >vendors routers/switches/BSD-based load balancers/etc. employ this feature >too...Ughh. you'd think i'd know by now that powercycling one particular box of mine will always kill the egress router. i never learn. it took me about a year of "wtf?!" to actually get used to remembering that powercycling the box with the serial console on it will send a "break" to the router and i need to boot as fast as possible, tip in, and "c" it. later i just pulled the cable off. it was easier and i ended up accessing the router less than i was rebooting it because i hadn't recalled yet exactly what i'd done wrong. brain slow. but i can also appreciate the statement from the angle of one who plugs and unplugs sun keyboard cables as well: that's also a break signal. at least...until we upgraded to e450s and left the keys (removed, but) in the locked position so that the machine would ignore the standard set of break signals. -- |-----< "CODE WARRIOR" >-----| [email protected] * "ah! i see you have the internet [email protected] (Andrew Brown) that goes *ping*!" [email protected] * "information is power -- share the wealth."