#!/usr/bin/python#auto change gateway created by mickelfengimport osimport random,reg='gateway 192.168.1.'rand=random.randint(1,3)test='www.baidu.com'command='/etc/init.d/networking restart'gw = %s%d%(g,rand)pingtest = 'ping -c 3 ' + testtry: result=os.system(pingtest) print result if result!=0: data = open('/etc/network/interfaces').read() data = re.sub('gateway 192.168.1.*',gw, data) open('/etc/network/interfaces', 'wb').write(data) os.system(command) os.system(command)except: pass