New guide: NSD Authoritative DNS

[neelchauhan]

Author checklist (Completed by original Author)

• Good fit for the Rocky Linux project? Title and Author Metatags inserted ?
• If applicable, steps and instructions have been tested to work
• Initial self-review to fix basic typos and grammar completed

Rocky Documentation checklist (Completed by Rocky team)

• 1st Pass (Document is good fit for project and author checklist completed)
• 2nd Pass (Technical Review - check for technical correctness)
• 3rd Pass (Detailed Editorial Review and Peer Review)
• Final approval (Final Review)

[github-actions]

Test results for 02ce22d:

Number of broken URLs: 5

URL,RESULT,FILENAME
 http://www.gnu.org/software/hello/hello.html,failed,labs/systems_administration_I/lab7-software_management.md
 https://azuremarketplace.microsoft.com/en-us/marketplace/apps/resf.rockylinux-aarch64,failed,guides/cloud/migration-to-new-azure-images.md
 https://www.gnu.org/software/sed/manual/,failed,books/sed_awk_grep/3_sed_command.md
 https://www.gnu.org/software/gawk/manual/,failed,books/sed_awk_grep/4_awk_command.md
 https://www.gnu.org/software/grep/manual/,failed,books/sed_awk_grep/2_grep_command.md

[sspencerwire]

Thanks again @neelchauhan Another contributor and I were commenting the other day about your documents and how they offer a completely different perspective from those contributed so far. We are appreciative!!