cat /etc/security/limits.conf :
#* soft core 0
#* hard rss 10000
#@student hard nproc 20
#@faculty soft nproc 20
#@faculty hard nproc 50
#ftp hard nproc 0
#@student - maxlogins 4

ulimit -a :

core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
pending signals (-i) 32623
max locked memory (kbytes, -l) 32
max memory size (kbytes, -m) unlimited
open files (-n) 8000
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) 32623
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited