apt update
# host
apt install bind9-host
# route, netstat
apt install net-tools
# ping
apt install iputils-ping
# telnet
apt install telnet
# tracepath
apt install iputils-tracepath
# traceroute
apt install traceroute
# ss, ip a
apt install iproute2
# dig
apt install dnsutils
# ps, top, free
apt install procps