On Tue, Dec 6, 2016 at 7:30 PM, René J.V. Bertin <rjvber...@gmail.com> wrote:
> On Tuesday December 6 2016 18:13:18 Brandon Allbery wrote: > >Unless things are configured to log to wtmp by IP address, these stopped > >working when hostnames got too long. OS doesn't matter. (wtmp has to set a > > Possible that it's that, but this has never been a very standardised > thing; my code is full of #ifdefs (then again, my fault I ran it on HPUX, > A/UX, IRIX etc :)) > Different OSes have altered utmp/wtmp in various ways, some of them trying to grow it and then giving up, others never bothering and using a short width that only works for hostnames on the local network (or did 20 years ago...). Regardless, I regularly get hostnames that won't fit in *any* utmp/wtmp record. > >length limit, and good luck reconstructing from a prefix. It's been tried > >many times and is pretty much impossible.) > > It would seem SSH_CONNECTION contains the remote IP, so there's that... > For ssh, sure. And ideally that's the only thing that would matter --- but, sometimes reality (or lame network vendors, etc.) has other ideas. -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net
