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[单选题]
linux中如果主机的IP地址是192.168.1.255,通过sendmail转发邮件,需要修改文件/etc/mail/access,添加命令()
A.192.168.1.255 REJECT
B.192.168.1.255 RELAY
C.192.168.1.1 REJECT
D.255.255.255.0 RELAY
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、192.168.1.255 RELAY
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.192.168.1.255 REJECT
B.192.168.1.255 RELAY
C.192.168.1.1 REJECT
D.255.255.255.0 RELAY
B、192.168.1.255 RELAY
A./etc/hostname与/etc/hosts都存储主机名与主机的ip地址
B./etc/hostname与/etc/hosts都存储主机的ip地址与默认网关
C./etc/hosts中存放的是主机名,/etc/hostname存放的是域名与ip的对应关系
D./etc/hostname中存放的是主机名,/etc/hosts存放的是域名与ip的对应关系
下列IP地址中,属于A类地址的是 ()
A. 65. 10. 12. 137
B.128. 110. 121. 37
C. 192. 168.0.1
D.240. 25. 30. 56
A.两者是同一个IP地址
B.BMC系统IP地址用于在FusionCompute中添加CNA节点主机时使用
C.主机管理网口IP地址用于给物理主机远程安装操作系统时使用
D.BMC系统IP地址可以添加到FusionCompute中,方便主机自动上下电
A.不确定
B.139.25.37.6
C.192.168.1.56
D.202.113.16.10
A.192.552.5.5255
B.192.168.9.255
C.192.16.15.255
D.192168.255.255
A.127.0.0.1
B.255.255.255.255
C.0.0.0.0
D.169.254.2.33
A.127.0.0.1
B.255.255.255.0
C.0.0.0.0
D.169.254.2