Change-Id: I91bfb8e2a06fc0499addd376db9e38483a6756d0

* CIS 1.5.1 Ensure core dumps are restricted
* CIS 1.5.3 Ensure address space layout randomization (ASLR) is enabled
* CIS 3.1.2 Ensure packet redirect sending is disabled
* CIS 3.2.1 Ensure source routed packets are not accepted
* CIS 3.2.2 Ensure ICMP redirects are not accepted
* CIS 3.2.3 Ensure secure ICMP redirects are not accepted
* CIS 3.2.4 Ensure suspicious packets are logged
* CIS 3.2.5 Ensure broadcast ICMP requests are ignored
* CIS 3.2.6 Ensure bogus ICMP responses are ignored
* CIS 3.2.7 Ensure Reverse Path Filtering is enabled
* CIS 3.2.8 Ensure TCP SYN Cookies is enabled

All sysctls are valid for Ubuntu 14.04, Ubuntu 16.04.

Change-Id: I48f34c55d97a78c253d4810db46b2a04ff5c0c1a

This reverts commit d87f461319.

Change-Id: If175b29f2e130ecf5041e7b0be20f15485089ffa

* CIS 1.1.1.1 Ensure mounting of cramfs filesystems is disabled
* CIS 1.1.1.2 Ensure mounting of freevxfs filesystems is disabled
* CIS 1.1.1.3 Ensure mounting of jffs2 filesystems is disabled
* CIS 1.1.1.4 Ensure mounting of hfs filesystems is disabled
* CIS 1.1.1.5 Ensure mounting of hfsplus filesystems is disabled
* CIS 1.1.1.6 Ensure mounting of squashfs filesystems is disabled
* CIS 1.1.1.7 Ensure mounting of udf filesystems is disabled
* CIS 1.1.1.8 Ensure mounting of FAT filesystems is disabled
* CIS 3.5.1 Ensure DCCP is disabled
* CIS 3.5.2 Ensure SCTP is disabled
* CIS 3.5.3 Ensure RDS is disabled
* CIS 3.5.4 Ensure TIPC is disabled

Related-Prod: PROD-20756
Related-Prod: PROD-20757
Related-Prod: PROD-20758
Related-Prod: PROD-20759

Change-Id: I719984829978caf0401e78daaabf1adfb0d1cfdf

Related-Prod: PROD-20755

Change-Id: I44cc3bdb4a0436ff17f790a828d03697b89d3520