Jeremy Huntwork wrote: > On 5/9/11 1:57 AM, Bryan Kadzban wrote: >> Right, but you have no way to know (in the static config, or the >> DHCP config, for instance) whether a pppd was running and needs to >> be killed, or whether DNS needs to be unregistered (unlikely, but >> not impossible), or whether a wireless card needs to be >> disassociated. > > There has to be ways to check in the running system how a device is > configured if it's active.
Yeah, but a single "everything goes down this way" script would need to know about all the possibilities. (But see DJ's recent mail.) >> I can see that logic, I suppose. But bootscript config (which is >> what both /etc/sysconfig/rtc and friends, and >> /etc/sysconfig/network*, are today) seems different enough from >> systemwide defaults for new users, to warrant a different >> directory. Maybe the useradd defaults file should have been stuck >> somewhere near /etc/skel or something. But at least in my mind, >> separating the two makes sense. >> >> (Then again, my mind is a scary place. :-P) > > The /etc/sysconfig/network* have already been moved to /etc/network. > What is now /etc/default/rc as per the changes is really just > default configurations for how the bootscripts run. Right, but the former /etc/sysconfig/network* was also default configuration for how the bootscripts run. Well, the network script anyway. :-) >> What happens if the machine shuts down with ssh sessions active, >> without this? Do they just hang and eventually time out? Or do >> they die when the NIC gets taken down? (...Is the kernel that >> smart?) Or does something log all users out earlier? (What about >> killall5, run from sendsignals? That might be too late though?) > > Without this, the terminal hangs until the timeout is reached and > then the session closes and the terminal becomes active on the > localhost again. So networking goes down before the per-client sshd processes, and the kernel isn't smart enough to kill those connections at interface-down time. :-( In that case, this should work. Maybe with a comment explaining why it's necessary though.
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