kernel.printk = 1 4 1 7
vm.swappiness=0
vm.mmap_min_addr = 4096
+vm.min_free_kbytes = 8192
+
+# Disable IPv6 by default.
+net.ipv6.conf.all.disable_ipv6 = 1
+net.ipv6.conf.default.disable_ipv6 = 1
+
+# Enable netfilter accounting
+net.netfilter.nf_conntrack_acct=1