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systemd的登陆程序为systemd-logind.service,配置文件/etc/systemd/logind.conf DESCRIPTION systemd-logind is a system service that manages user logins. It is respon 阅读全文
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linux内核/proc/sys/net/ipv4/conf中下面会有各网卡的配置参数其中arp_ignore和arp_annouce与arp相关 arp_ignore 取值为integer 0 (default) :reply for any local target IP address con 阅读全文
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fuser identify processes using files or sockets fuser displays the PIDs of processes using the specified files or file systems. In the default display 阅读全文
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lsof list open files Linux一切皆文件,通过文件不仅可以访问常规数据,还可以访问网络连接(套接字)和硬件,该文件描述符为应用程序与os之间提供了接口.lsof需访问各种特权文件,故需root运行 COMMAND contains the first nine characte 阅读全文