查看/etc/passwd 文件发现奇怪的用户：

valueoflife

查看/etc/passwd 文件发现奇怪的用户：
radvd:x:75:75:radvd user:/:/sbin/nologin
这个用户是做什么的？

7dehao

Linux IPv6 Router Advertisement Daemon (radvd)
The router advertisement daemon (radvd) is run by Linux or BSD systems acting as IPv6 routers. It sends Router Advertisement messages, specified by RFC 2461, to a local Ethernet LAN periodically and when requested by a node sending a Router Solicitation message. These messages are required for IPv6 stateless autoconfiguration.

This release includes support for Mobile IPv6, 6to4 addressing, and non-broadcast multiple-access links such as ISATAP. Both Linux and BSD are supported. For more information about recent modifications, please see the CHANGES file included with the latest release of radvd.
http://v6web.litech.org/radvd/