type: txt
help: Specifies the available MAC (message authentication code) algorithms. The MAC algorithm is used in protocol version 2 for data integrity protection. Multiple algorithms must be comma-separated. See 'man sshd_config' for supported MACs.

create: sudo sed -i -e '$ a \
MACs $VAR(@)' /etc/ssh/sshd_config

delete: sudo sed -i -e '/^MACs $VAR(@)$/d' /etc/ssh/sshd_config

update: sudo sed -i -e '/^MACs/c \
MACs $VAR(@)' /etc/ssh/sshd_config