Index: Linux-PAM-1.1.8/modules/pam_limits/limits.conf
===================================================================
--- Linux-PAM-1.1.8.orig/modules/pam_limits/limits.conf
+++ Linux-PAM-1.1.8/modules/pam_limits/limits.conf
@@ -47,4 +47,10 @@
 #ftp             hard    nproc           0
 #@student        -       maxlogins       4
 
+# harden against fork-bombs
+*               hard    nproc           800
+*               soft    nproc           700
+root            hard    nproc           900
+root            soft    nproc           850
+
 # End of file