The usual / canonical sysadmin book might work, there is a lot of security related material in there as well. https://www.amazon.com/Practice-System-Network-Administration-Second/dp/0321... And this updated for enterprise / devops and other such new fangled things https://www.amazon.com/Practice-System-Network-Administration-Enterprise/dp/0321919165/ref=pd_lpo_sbs_14_t_0?_encoding=UTF8&psc=1&refRID=2N4F09FPM9FG9VQNT433 On 23/07/18, 6:55 PM, "NANOG on behalf of Ramy Hashish" <nanog-bounces+ops.lists=gmail.com@nanog.org on behalf of ramy.ihashish@gmail.com> wrote: Hello All, I am planning to build up a security team of fresh engineers whom are "network oriented", any advice on the knowledge resources we can start with? We are looking forward to building a concrete foundation of a well-rounded security engineer, we are looking for vendor/operator agnostic resources. Thanks, Ramy