我正在尝试连接到 nfs 服务器。我在哪里看到以下问题。
mount.nfs: timeout set for Mon May 11 19:27:01 2020
mount.nfs: trying text-based options 'nfsvers=3,addr=IP'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: portmap query retrying: RPC: Timed out
mount.nfs: prog 100003, trying vers=3, prot=17
mount.nfs: portmap query failed: RPC: Unable to receive - Connection refused
nfs-utils 已安装并在客户端中运行。rpcbind 正在客户端机器上运行。端口 111、2049 和 892 对 NFS 服务器开放。但是，我不确定我是否缺少任何解决此问题的方法。