Ports and Services
/etc/services
Uitzoeken welke service op welke poort draait
service --status-all (laat alle services zien)
sudo netstat -lptu # show all named services
sudo netstat -tulpn # show all named (numeric)
sudo lsof -i
lsof -i :22 # which process bound to port 22
ls -l /proc//exe # gives the process' path
nc — arbitrary TCP and UDP connections and listens
whatis mysqld
pwdx
WiFi
Ubuntu wireless network Wifi via the command line
ifconfig
iwlist scan - shows wireless networks
lshw -C network - interface and driver associated with networking devices
lspci -nn
lsusb
lshw -C usb - Additional info on USB related hardware (good for USB dongles)
cat /etc/modprobe.d/blacklist<...> - modules not loaded at boot time
route -n
netstat -rn
sudo route add default gw 192.168.1.1
sudo route del default gw 192.168.1.1
sudo ifup/ifdown
sudo ifconfig up/down
sudo dhclient - Request IP address from DNS server for specified interface
sudo dhclient -r - Release IP address associated with specified interface
sudo iptables -L - Lists firewall rules
/etc/resolv.conf - DNS servers associated with network connections
/etc/dhcp3/dhclient.conf - set or modify dns settings