CompTIA A+ 1101 2.6 Exam Course Objectives скачать в хорошем качестве

CompTIA A+ 1101 2.6 Exam Course Objectives

Compare and contrast common network configuration concepts. • #DNS #Address M A M AAAA Mail exchanger (MX) Text (TXT) M Spam management (i) DomainKeys Identified Mail (#DKIM ) (ii) Sender Policy Framework (#SPF ) (iii) Domain-based Message Authentication, Reporting, and Conformance (#DMARC ) • #DHCP Leases Reservations Scope • Virtual LAN (#VLAN ) • Virtual private network ( #VPN ) #comptia #comptiaa #networking Here is the script: sudo apt update sudo apt upgrade sudo apt install unbound sudo nano /etc/unbound/unbound.conf #Key Config File server: verbosity: 1 interface: 0.0.0.0 access-control: 127.0.0.1/8 allow access-control: 192.168.1.0/24 allow do-not-query-localhost: no hide-identity: yes hide-version: yes sudo systemctl enable unbound sudo systemctl status unbound ########################################### i had an issue solved it via sudo nano /etc/default/unbound #add DAEMON_OPTS="" #save and exit #### check to see if ubound is being used cat /etc/resolv.conf sudo nano/etc/resolv.conf nameserver 127.0.0.1 sudo chattr +i /etc/resolv.conf #flush DNS cache sudo systemctl restart unbound sudo systemd-resolve --flush-caches ########################## #trouble shooting sudo netstat -tulnp | grep :53 sudo systemctl status unbound dig google.com @127.0.0.1 #how to block a website example local-zone: "google.com." static local-data: "google.com A 0.0.0.0"