--- Johnathan Bailes <johnathan.bailes@xxxxxxxxx> wrote: > On Sat, 19 Mar 2005 08:07:42 -0500, Jim Buchanan > <jbuchana@xxxxxxxxx> wrote: > > On Fri, 18 Mar 2005 13:08:31 -0500, M.Rudra > <dr.rudra@xxxxxxxxx> wrote: > > > So I googled "fork bombing" and after reading > them, I have some doubts : > > > > > > 1] Is this applicable to newer version of FC3/4 > or will this affect > > > > I just tried a fork bomb on a reaonably updated > fc3 box. Locked it up > > tight, I had to use the power switch. > > > > The default ulimit for user processes was set at > 4095. > > > > As many said, if you are worried, it is trivial to > reduce this. > > > > ulimit -a > core file size (blocks, -c) 0 > data seg size (kbytes, -d) unlimited > file size (blocks, -f) unlimited > pending signals (-i) 1024 > max locked memory (kbytes, -l) 32 > max memory size (kbytes, -m) unlimited > open files (-n) 1024 > pipe size (512 bytes, -p) 8 > POSIX message queues (bytes, -q) 819200 > stack size (kbytes, -s) 10240 > cpu time (seconds, -t) unlimited > max user processes (-u) 2045 > virtual memory (kbytes, -v) unlimited > file locks (-x) unlimited > > Weird my fairly stock Fedora Core 3 has a ulimit of > 2045? > > Is that enough to grind a box to its knees? > > I put the ulimit to 1000 in the iptables script for > my next kernel > update reboot. > > ulimit -u 1000 > > Is that is all that is needed? > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: > http://www.redhat.com/mailman/listinfo/fedora-list > I did the same and I get another number greater than 4095. I am not concerned about this, but I would like to share my data [olivares@localhost ~]$ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited pending signals (-i) 1024 max locked memory (kbytes, -l) 32 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 7677 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited [olivares@localhost ~]$ Regards, Antonio __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/
