It is common case when modem hangs with carier on but don't
receive anything from another side.
This thing commonly healed with hangup and redialing.
Enhancements below allows to determine when such action
is needed and inform attach program with SIGURG signal.
There two ioctls set: outfill and keepalive, used from both
sides of connection. Outfill repeatedly sends FRAME_END with
specified timeout (i.e. 40 seconds). It is needed to get input on
other side even if no user activity on slip line currently.
Keepalive checks FRAME_ENDs from other side, and if no one
got in specified timeout (i.e. 60 seconds, max modem retrain time),
send SIGURG to attach program.
I plan to add code to slattach to handle this thing too.
Reviewed by: wollman
restore but really didn't do it.
Restore message from old rc about configuring syscons whith
echo added before it to go to new line after "echo -n xtend" f.e.
and similar stuff.
changes to it based upon other outstanding bug reports and commits made
after his work.
Comments:
(a) sysconfig is still used to do all configuration. I was not going to
change that out from under you.... a user never need edit netstart
or rc* unless they're being very weird.
(b) rc.maint has been folded back into rc. It is just unworkable as
a separate chunk because of ordering bogosities
(c) netstart does what it says... it starts up enough of the network to
get up, it doesn't start every bloody daemon that might talk to a
socket... netstart ifconfig's the devices and sets up routing if
configured to do so.
(d) nfs disks are mounted immediately after netstart completes
(e) syslog is started as early as possible (right after nfs) so that error
messages can get logged to remote syslog servers properly
(f) named is started (there is an argument that says that named should be
started before syslogd because if you are the dns server for your domain,
you'd like named to resolve remote hosts in syslog.conf, but this is
a minority case and the trivial workarround is to put the syslog host
in /etc/hosts or use an /etc/resolv.conf -- why? because you want syslog
to catch named errors, which is a MUCH more important and likely occurance)
(g) NOW all of the rest of the network daemons such as the time stuff, RPC,
NIS, NFS, Kerberos and inetd are started
(h) the rest of the generic stuff is done (cron/printer/sendmail)
(i) shared libraries are set
(j) /etc/rc.i386 is run (this does FreeBSD/386 specific stuff like ibcs2,
xtend, and all of the syscons stuff
(this is actually started as /etc/rc.`uname -m`
(k) the syscons stuff has gotten a serious cleaning to make it consistent
with rc conventions
(l) rc.local has had the comments about syscons removed (they are not relevant
to this file now) and the full name of the kernel has been restored to
/etc/motd
Submitted by: pts
NIS maps (get rid of extraneous slash a la /var/yp//domainname).
Have ypxfr log all output to /var/yp/ypxfr.log if stdin is not a
tty. This should allow logging to be done when ypxfr is called from
inside ypserv in response to a yppush request.
Update man page to reflect the change (and fix a typo).
update what has actually been touched. This should speed up
screen access on slow hardware.
Introduced setting of "destructive" cursor size, much like
the old hardware cursor.
on a "NQNFS" kernel config option. NQNFS is a 4.4 wart and the performance
penalty of the lease checks on the client/server for _local_ I/O is too high
to have this occur all the time - especially when most people will never
use it.
date: 1995/03/26 18:18:59; author: wpaul; state: Exp; lines: +23 -17
Make syslogd work again: in needs to be started in netstart right
before the rest of the system daemons are brought up and *after* the
network interfaces have been configured.
Also fix one other potential problem: the NIS services need to be started
relavively early since some of the other daemons might need them. The
automounter is a good example: if you use amd with NIS-based maps, you'd
better have NIS running before you start it. :) I think mountd might
need it too, now that netgroups can be read via NIS as well.
date: 1995/03/23 01:25:18; author: jkh; state: Exp;
Another pass through our rc files in an attempt to eliminate historical
crufy and generally make all of this easier to understand and modify.
