If you're in the IT business, even if you're not a security administrator, you want to keep up with the latest security news. In the age of the internet, that's easy to do.
First, there are quite a few websites that specialize in network security news. Examples include Packet Storm Security and The Hacker News. Regular tech news sites and Linux news websites, such as The INQUIRER, The Register, ZDNet, and LXer also carry reports about network security breaches. And, if you'd rather watch videos than read, you'll find plenty of good YouTube channels, such as BeginLinux Guru.
Finally, regardless of which Linux distribution you're using, be sure to keep up with the news and current documentation for your Linux distribution. Distribution maintainers should have a way of letting you know if a security problem crops up in their products.
- Packet Storm Security: https://packetstormsecurity.com/
- The Hacker News: http://thehackernews.com/
Links to general tech news sites are as follows:
- The INQUIRER: https://www.theinquirer.net/
- The Register: http://www.theregister.co.uk/
- ZDNet: http://www.zdnet.com/
- LXer: http://lxer.com/
- BeginLinux Guru on YouTube: https://www.youtube.com/channel/UC88eard_2sz89an6unmlbeA
(Full disclosure: I am the BeginLinux Guru.)
One thing to always remember as you go through this book is that the only operating system you'll ever see that's totally, 100% secure will be installed on a computer that never gets turned on.