The operating system is where many attacks are targeted, which makes OS-level security just as important to your organization as network security. OS security is also a key component of the Microsoft Technology Associate (MTA) Security Fundamentals exam (98-367). In this course, instructor Lisa Bock details what’s actually involved in securing an operating system. Lisa reviews user authentication, the structure of Active Directory, and how to assign permissions and create audit policies. In addition, she covers various cryptographic techniques, as well as how to protect servers and email.
Author - Ethical Hacking: Penetration TestingSince 2004, Lisa Bock has been teaching IT, everything from forensics to network security.
Lisa is an associate professor in the Information Technology department at Pennsylvania College of Technology, in Williamsport, PA. Courses she has taught during the past 13 years include: networking, security, biometrics, technical support, protocol vulnerabilities (using Wireshark), CCNA Security, and VoIP and Unified Communications. She holds an MS from University of Maryland University College (UMUC) along with numerous other certifications. She has had training in forensics, networking, steganography, and network security. She is involved with various volunteer activities, has evaluated professional journals, and is an award-winning speaker. Lisa and her husband Mike enjoy bike riding, watching movies, and traveling.
Skills covered in this course
Ensure system security“
- [Teacher] Domain Name System maps a host name to an IP address. It's essential on any network. DNS records are also important for email delivery and spam protection. In order to properly send and receive email, it's important for proper DNS configuration so that other mail servers can send mail to your users and other mail servers will trust you to receive your mail. DNS has several records. When dealing with email, here are a few. An A record maps a name to an IPv4 address. A AAAA record maps a name to an IPv6 address. An MX record is the mail exchange record for the server that accepts email messages for a domain. A PTR record is a reverse lookup which maps the IP address to the name. PTR records are important for email delivery and are another tool for spam filters. Some mail servers will not allow an email to come from a server unless they can perform a reverse DNS lookup. The reason is that spammers will most likely use a bogus domain name and will not likely have a legitimate…
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