= tcp/ip (on Linux)
== información
  * ''cat /etc/services''
  * [[https://wiki.debian.org/es/NetworkConfiguration]]
  * VLAN: [[https://nosololinux.es/todo-lo-que-necesitas-saber-sobre-vlans-en-redes/]]

== configuración
  * [[linux:tcpip:ips]]
  * [[linux:tcpip:dns]]
  * [[linux:tcpip:dhcp]]
  * [[linux:tcpip:rutas]]
  * [[linux:tcpip:nfs]]

== utilidades
  * [[linux:tcpip:dig]]
  * [[linux:tcpip:whois]]
  * [[linux:tcpip:ss|]]
  * [[linux:tcpip:netstat|]]


== firewall
  * [[linux:tcpip:iptables]]
  * [[linux:ufw:start]]

== comandos
  * averiguar servidores DNS en conexto DHCP:<code bash># averiguar ubicación fichero .lease
ps aux | grep dhclient
cat /var/lib/NetworkManager/dhclient-*-<interface>.lease</code>
  * geolocalización: <code bash>curl -s https://ipvigilante.com/$(curl -s https://ipinfo.io/ip) | jq '.data.latitude, .data.longitude, .data.city_name, .data.country_name'</code>