diff --git a/Makefile b/Makefile
index a11d8529..81d9a5d0 100644
--- a/Makefile
+++ b/Makefile
@@ -61,7 +61,7 @@ MANFILES := $(man1)uptime.1 $(man1)tload.1 $(man1)free.1 $(man1)w.1 \
 
 TARFILES := AUTHORS BUGS NEWS README TODO COPYING COPYING.LIB \
             Makefile procps.lsm procps.spec v t README.top CodingStyle \
-            minimal.c $(notdir $(MANFILES)) dummy.c \
+            sysctl.conf minimal.c $(notdir $(MANFILES)) dummy.c \
             uptime.c tload.c free.c w.c top.c vmstat.c watch.c skill.c \
             sysctl.c pgrep.c top.h pmap.c slabtop.c
 
diff --git a/sysctl.conf b/sysctl.conf
new file mode 100644
index 00000000..9cb38d4a
--- /dev/null
+++ b/sysctl.conf
@@ -0,0 +1,39 @@
+# /etc/sysctl.conf - Configuration file for setting system variables
+# See sysctl.conf (5) for information.
+
+#dev.cdrom.autoeject = 1
+#dev.cdrom.autoclose = 1
+
+net/ipv4/tcp_syncookies=1
+net/ipv4/conf/all/log_martians=1
+net/ipv4/conf/all/accept_redirects=0
+net/ipv4/conf/all/accept_source_route=0
+net/ipv4/icmp_echo_ignore_broadcasts =1
+#net/ipv4/ip_forward=1
+#net.ipv4.tcp_ecn = 0
+#net.ipv4.ip_local_port_range = 32768    61000
+
+#vm.vfs_cache_pressure = 100
+#vm.laptop_mode = 0
+#vm.swappiness = 60
+
+#kernel.printk_ratelimit_burst = 10
+#kernel.printk_ratelimit = 5
+#kernel.panic_on_oops = 0
+
+# Reboot 600 seconds after a panic
+#kernel.panic = 600
+
+# enable SysRq key (note: console security issues)
+#kernel.sysrq = 1
+
+# Change name of core file to start with the command name
+#kernel.core_pattern = %e.core
+
+# NIS/YP domain (not always equal to DNS domain)
+#kernel.domainname = example.com
+#kernel.hostname = darkstar
+
+# This limits PID values to 4 digits, which allows tools like ps
+# to save screen space.
+kernel/pid_max=10000