apt install -y iputils-ping # for ping
apt install -y dnsutils # for dig, etc.
apt install -y net-tools # for netstat, etc.
apt install -y nmap

yum install -y bind-utils # for nslookup, etc.
yum install -y nmap # for ncat, etc.

ping example.com
traceroute example.com

dig <any_url>

netstat -ntpul

lsof -i -P -n
lsof -i -P -n | grep LISTEN

nc -l -p 1337 # the receiver
nc localhost 1337 # the sender
# then type something, then enter, it should be transfered to the receiver

telnet 15.0.0.93 4648

nmap -Pn -p 4648 15.0.0.93

nmap -sP <current_ip>/24

sudo arp-scan --interface=<current_interface> --localnet

tcpdump -i any host 10.0.5.37
tcpdump -i any port 443
tcpdump -i any port 443 and host 10.0.0.1 or host 10.0.0.2 or host 10.0.0.3
tcpdump -ni any port 443 and host 10.0.0.1 or host 10.0.0.2 or host 10.0.0.3

iptables -L -t nat

# pour faire un clean
iptables -F -t nat

• Linux networking tools
• Every Linux networking tool I know