jeffe@uoregon.UUCP (jeffe) (05/01/85)
ukma!david (David Herron) states: > > > > . . . (quotes discusion of dump competing with getty on console) > > > I have a similar set of shell scripts (which I like better). But I had > this same problem with competing with getty. So I fixed init so it > would keep the console logged in. (Actually....it was ANY line who's > /etc/ttys entry had 'c' in the first column) So now It doesn't compete > with getty, any time I need to do something quick, I've got a terminal > already logged in, etc. (We can only do this here because the machine > is kept locked with limited access.) > > Ok, I'll offer a set of diffs to anybody wanting them. Please note > that this is for 4.2BSD, on a 11/750. > > . . . > This will solve your problem, however, it may cause others. For instance, I know a security hole in 4.2BSD that is fairly simple that will crack your system so fast your head will spin. Of course this assumes you leave the console logged in as root. I won't broadcast what the hole is, as I haven't gotten around to fixing it yet. It's subtle, so you're probably safe, but you won't catch me leaving the console logged in! Jeff Eaton University of Oregon, Computer and Info Science ..!tektronix!uoregon!jeffe
david@ukma.UUCP (David Herron, NPR Lover) (05/06/85)
In article <237@stc-a.stc.UUCP>, shimell@stc.UUCP (Dave Shimell) writes: > - If the dumps require more than a single tape, the > last dump must be aborted and manually restarted. > (I guess the script could keep track of the amount > of tape used in previous dump run.) As the script > is reading /dev/console, you have to compete with > getty to talk to dump. > I have a similar set of shell scripts (which I like better). But I had this same problem with competing with getty. So I fixed init so it would keep the console logged in. (Actually....it was ANY line who's /etc/ttys entry had 'c' in the first column) So now It doesn't compete with getty, any time I need to do something quick, I've got a terminal already logged in, etc. (We can only do this here because the machine is kept locked with limited access.) Ok, I'll offer a set of diffs to anybody wanting them. Please note that this is for 4.2BSD, on a 11/750. Oh, how do I run the backup program? Simple. I wrote a quickie that would use that ioctl() that forced characters into a terminal's input buffer. This one takes the text from the command line. So my crontab entry looks like: 30 04 * * 1 force /dev/console "cd /backup; daily 2" (The '2' is the dump level to use.) -- --- David Herron --- ARPA-> ukma!david<@ANL-MCS> or david%ukma.uucp@anl-mcs.arpa --- Or even anlams!ukma!david@ucbvax.arpa --- UUCP-> {ucbvax,unmvax,boulder,oddjob}!anlams!ukma!david --- cbosgd!ukma!david "The home of poly-unsaturated thinking".