我有我的nfs服务器运行在192.168.1.99框，我有我的/ etc / exportsconfiguration使用
/myshare 192.168.1.*(rw,sync,no_subtree_check)
我能够从192.168.1.50客户端安装nfs。
但是我无法从192.168.1.49安装！ （“mount.nfs mount（2）权限被拒绝”，后面跟着“mount.nfs访问被服务器挂载时拒绝”）
然后我发现我可以连接，如果我更改客户端的IP到192.168.1.48
最后，我能够通过使用192.168.1.0/24而不是192.168.1.*来使它工作192.168.1.*
有谁可以解释为什么192.168.1.0/24为192.168.1.49 ，但192.168.1.*不？
netmask 255.255.255.0 network 192.168.1.0
…我不是pipe理员，我对子网了解不够… Ubuntu64,12.04 …
请参阅exports(5) ：
Machine Name Formats NFS clients may be specified in a number of ways: [...] IP networks You can also export directories to all hosts on an IP (sub-) network simultaneously. This is done by specifying an IP address and netmask pair as address/netmask where the netmask can be specified in dotted-decimal format, or as a contiguous mask length. For example, either `/255.255.252.0' or `/22' appended to the network base IPv4 address results in identical subnetworks with 10 bits of host. [...] Wildcard characters generally do not work on IP addresses, though they may work by accident when reverse DNS lookups fail. wildcards Machine names may contain the wildcard characters * and ?, or may contain character class lists within [square brackets]. This can be used to make the exports file more compact; for instance, *.cs.foo.edu matches all hosts in the domain cs.foo.edu. As these characters also match the dots in a domain name, the given pattern will also match all hosts within any subdomain of cs.foo.edu.
这只是意味着你正在configuration错误的行
/myshare 192.168.1.*(rw,sync,no_subtree_check)
通配符可用于主机名，用于指定IPnetworking，您需要使用点分十进制IP地址和可选的子网大小。 上面的反向IP查询故事可以解释为什么它为一个特定的地址工作。