La verdad es que si combinamos un lanzador de aplicaciones como QuickSilver con unos cuantos scripts útiles, podemos obtener un ahorro de tiempo altamente considerable a la hora de realizar nuestras tareas más cotidianas.
El script que os dejo hoy lo ví en Mac OS X Hints, y es muy útil, eso sí, para tenerlo corriendo siempre. En función de la red a la que nos conectemos, activa o desactiva automáticamente el firewall, por lo que es muy útil si tenemos el mismo ordenador para empresa y casa, por ejemplo.
Os dejo el script tras el salto.Primero guarda esto en /Library/LaunchAgents:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>KeepAlive</key>
<false/>
<key>Label</key>
<string>com.yourcompany.autofirewall</string>
<key>ProgramArguments</key>
<array>
<string>/Library/Scripts/yourcompany/autofirewall.sh</string>
</array>
<key>RunAtLoad</key>
<false/>
<key>WatchPaths</key>
<array>
<string>/var/run/resolv.conf</string>
</array>
</dict>
Y luego esto en /Library/Scripts/Elnombrequequieras:
#!/bin/bash
#Written by Nate Walck and Clint Armstrong
#Liberty University 2009
#This Script will automatically enable or disable the firewall depending upon which network it is on.
#This function turns the firewall on or off, depending upon which state is desired.
#If the firwall is already in the state desired, the script will leave it in that state.
function firewall {
#Reads the current state of the firewall and stores it in variable fw
fw=$(defaults read /Library/Preferences/com.apple.alf globalstate)
#This compares the option passed to function firewall to its current state.
if [ "$1" != "$fw" ]
then
#If the option pased is different from current state, it changes it to the passed value.
defaults write /Library/Preferences/com.apple.alf globalstate -int $1
#For troubleshooting purposes, you can put in 'say $1' to see which state is being set.
fi
}
#Determines if resolv.conf exists.
if test -e /var/run/resolv.conf
then
#This stores the domain line of resolv.conf into variable NETWORK.
NETWORK=$(cat /var/run/resolv.conf | grep domain | awk '{print $2}')
#This case looks at $NETWORK for specific domains and runs commands accordingly
case "$NETWORK" in
#If on VPN, function firewall turns the firewall on.
vpn.yourcompany.com
firewall 1
;;
#On any other company domain, function firewall turns firewall off.
*.yourcompany.com)
firewall 0
;;
#On any other domain, function firewall turns firewall on.
*)
firewall 1
;;
esac
else
#If no network connection exists, function firewall turns the firewall on.
firewall 1
fi
</plist>
(sin puntuar)
[...] Un script para manejar el Firewall (0) [...]
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[...] Un script para manejar el Firewall (1) [...]
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[...] Un script para manejar el Firewall (2) [...]
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