一,查看本地centos的版本:
[root@localhost lib]# cat /etc/redhat-release CentOS Linux release 8.1.1911 (Core)
说明:刘宏缔的架构森林是一个专注架构的博客,地址:https://www.cnblogs.com/architectforest
对应的源码可以访问这里获取: https://github.com/liuhongdi/
说明:作者:刘宏缔 邮箱: 371125307@qq.com
二,查看服务端输出的目录时报错:
[root@localhost liuhongdi]# showmount -e 192.168.3.172 clnt_create: RPC: Unable to receive
说明:报错的原因:
因为服务端开启了防火墙导致rpc无法连接到服务端
三,使nfs客户端可以通过防火墙连接nfs服务器
1,在nfs所在服务端防火墙增加nfs service:
[root@localhost liuhongdi]# firewall-cmd --add-service=nfs success [root@localhost liuhongdi]# firewall-cmd --add-service=rpc-bind success [root@localhost liuhongdi]# firewall-cmd --add-service=mountd success
2,生产环境中常用的做法:
把nfs客户端的ip加入到nfs服务端的防火墙
[root@localhost liuhongdi]# firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="43.229.53.61" accept' [root@localhost liuhongdi]# firewall-cmd --reload success