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Super Dimension Fortress (SDF-1)
■ BUSY the port opens and the board says nothing · checked
on The Vortex’s BBS list
- address
- sdf.org
- listed by
- sysop
- runs
- NetBSD · Telnet
- where
- Austin, TX, USA
- added by
- bbs hq on The Vortex, not yet verified as its sysop
prove it is yours - listed
we hold no picture of this board · it answered and sent almost nothing
Super Dimension Fortress (SDF, also known as freeshell.org) is one of the oldest and largest nonprofit public access UNIX systems on the Internet.
is it answering
answered 59 of 62 checks · reliability 94% · answered in 80ms last time · 1 miss in a row
one mark a dial, oldest first — green answered, red did not. 62 kept, since ; the directory calls every board every night and remembers six months of them.
the score
nobody has scored it yet
six axes, one to ten, rated here or inside the BBS list on The Vortex — one score, either way. a rating fades with age, so come back and rate it again in a season.
sign in to rate it here — with a BBS HQ account, or your Vortex handle.