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Centos7, The service is no longer started using init-style scripts, Instead, the unit file is used, Therefore, commands like service iptables start can no longer be used in centos7, Therefore, service iptables save cannot be executed. At the same time, firewall is used to replace the original iptables service in centos7, but don't worry, we just need to install iptables and iptables-services through yum source (iptables are usually installed by default, but iptables-services are not installed by default in centos7). After installing iptables-services in centos7, the rules can be saved by the service iptables save command, as in centos6, and the rules are also saved in the/etc/sysconfig/iptables file.For the new retail, Osaka Weaving House "all in" has also maintained its consistent caution. This brand, which is good at offline, said when looking online, "We cannot forget offline thinking and ways."(5) When the towing length exceeds 200m, a diamond shape is displayed at the most obvious place.天地伊始，万象皆新，巫族所镇守的九转玲珑石，集天地之气运，能颠倒日夜乾坤，其中的月华石更是有活生魂，药死人的奇效。我想借着这个机会，在山里历练些日子。A long time later:-Displays the wait dialog box in command line mode;