From the course: Cisco Certified Support Technician (CCST) Cybersecurity (100-160) Cert Prep

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System hardening

System hardening

From the course: Cisco Certified Support Technician (CCST) Cybersecurity (100-160) Cert Prep

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System hardening

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We can do a better job of securing our network just by following some best practices when it comes to network device hardening. And that's what we want to talk about in this video. One of the best practices that we can follow is to change default passwords. For example, you get a home Wi-Fi router, and maybe the password is linksys or admin or manager. You probably want to change that to something other than the default. When we talk about SNMP, Simple Network Management Protocol, we think about community strings, and a lot of those default community strings were public for read-only and private for read-write. Let's make sure we change those. And when we're setting those passwords, we want to avoid the really common passwords that might be subject to a dictionary attack. There are dictionaries of commonly used passwords out there. I was taking a look at a list of the 25 most popular passwords, and the most popular apparently is 1 2 3 4 5 6. That probably should not be our password…

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