• $ ping -c4 8.8.8.8
• $ ping router.linux.local
CONFIGURATION
• /etc/hosts
• /etc/hostname
• /etc/resolv.conf
• /etc/network/interfaces
• /etc/init.d/networking
• /etc/NetworkManager/system-connections/
• /etc/ssh/ssh_config
• # macchanger -r eth0
• # nm-connection-editor
• # hostname mars; cat /proc/sys/kernel/hostname
HOST
• $ inxi -i
• $ w3m myip.is
• $ w3m ifconfig.me
• $ curl ifconfig.me/all
• $ ip address show
• # ifconfig
• # ifconfig -a | grep -Po '\b(?!255)(?:\d{1,3}\.){3}(?!255)\d{1,3}\b' | xargs nmap -A -p0-
• # ifconfig eth0 down | up
• # netstat -tulpn
• $ netstat -ie
• $ netstat -a | less
• # clear; netstat -tupanc
• # clear; echo; netstat -i; echo; netstat -r
• $ sshfs name@server:/path/to/folder /path/to/mount/point
• $ nmap --iflist
• $ domainname
• $ dnsdomainname
• # iw dev wlan0 scan | egrep "SSID|signal" | awk -F ":" '{print $2}' | sed 'N;s/\n/:/' | sort
• $ speedometer -r eth0
LAN
• # arp-scan a.b.c.d/24
• $ ip neigh show
• $ ip route show
• $ ping -c4 8.8.8.8
• $ ping router.linux.local
• $ host 8.8.4.4
• $ nmap -A -T4 a.b.c.d
• $ nmap -sP a.b.c.d/24
• $ ssh -X [email protected]
WAN
• $ traceroute 8.8.8.8
• $ mtr --curses 8.8.4.4
SOURCES
• linuxhowtos.org/Security/understandssh.htm
• linux.die.net/Intro-Linux/chap_10.html
• file:///usr/share/doc/debian-handbook/html/en-US/index.html