Construction and configuration of NFS server under Linux

I. SYSTEM environment

# cat/etc/redhat-release CentOS Linux release 7.3.1611 (Core)

Two. Installing NFS Services

1. See if the System has NFS installed

Rpm-qa | grep Nfsrpm-qa | grep rpcbind

2. Install NFS

Yum-y Install Nfs-utils Rpcbind

3. Server-side configuration

Mkdir  /nfs-datachmod 666 /nfs-data editing the main profile:/etc/exportsvim /etc/exports / NFS-DATA  192.168.101.128/24 (Rw,no_root_squash,no_all_squash,sync) Common parameter description: RW ro  -- The permissions shared by this directory are read-write (read-write)   or read-only   (read-only), but can eventually be read or written, or file system  rwx  and identity related. Sync async --sync  means that data is written synchronously to the memory and hard disk,async  the data is staged in memory, not directly to the hard disk. No_root_squash root_squash --Client Use the  NFS  file system if the account is  root , how can the system determine the identity of this account? By default, the identity of the client  root  will be compressed by the  root_squash  settings  nfsnobody,  the system will be more secure for the server. But if you want to open the client to use the  root  identity to operate the server's file system, then this will have to open  no_root_squash ! all_squash  --regardless of the identity of the user who is logged in  NFS ,  His identity will be compressed into anonymous users, usually  nobody (nfsnobody)  .    configuration Effective  exportfs -r     start Rpcbind, NFS services  systemctl start   rpcbind.service systemctl start  nfs.service   Check the registration status of  RPC  services  rpcinfo -p localhost    Test:# showmount -e localhostexport list for  Localhost:/nfs-data 192.168.101.128/24

4. Client Configuration

Installing the Nfs-utils client yum-y install nfs-utils create mount directory mkdir/data View server-side Mount information: # SHOWMOUNT-E 192.168.101.128Export list for 192.168 .101.128:/nfs-data 192.168.101.128/24 to improve the stability of NFS, using TCP protocol Mounts, NFS defaults to UDP Protocol mount-t NFS 192.168.101.128:/nfs-data/data- o Tcp,nolock

5. Fixed NFS service port (This step is ignored if the firewall is turned off for ease of configuring the firewall)

When NFS starts, it randomly launches multiple ports and registers with RPC, which makes it a bit cumbersome to use iptables to restrict NFS ports, and you can change the configuration file to fix NFS service-related ports. #rpcinfo  -p localhost   program vers proto   port   service    100000    4   tcp     111  portmapper    100000    3   tcp     111  portmapper    100000    2    tcp    111  portmapper    100000     4   udp    111  portmapper     100000    3   udp    111  portmapper     100000    2   udp    111   Portmapper    100024    1&nbSp;  udp  59175  status    100024    1    tcp  36247  status    100005     1   udp  20048  mountd    100005     1   tcp  20048  mountd    100005     2   udp  20048  mountd    100005     2   tcp  20048  mountd    100005     3   udp  20048  mountd     100005    3   tcp  20048  mountd     100003    3   tcp   2049  nfs     100003    4   tcp   2049  nfs    100227     3   tcp   2049  nfs_acl    100003     3   udp   2049  nfs    100003     4   udp   2049  nfs    100227     3   udp   2049  nfs_acl     100021    1   udp  43725  nlockmgr     100021    3   udp  43725  nlockmgr     100021    4   udp  43725  nlockmgr     100021    1   tcp  45552   Nlockmgr    100021    3   tcp  45552  nlockmgr     100021    4   tcp  45552  nlockmgr                Edit configuration file:    vim /etc/ sysconfig/nfs    rquotad_port=30001    lockd_tcpport=30002     lockd_udpport=30002    mountd_port=30003    statd_port= 30004       Restart Service:     systemctl start   nfs.service  Check again, the port is fixed:         rpcinfo -p  localhost

This article is from the "Hello World" blog, so be sure to keep this source http://nxyboy.blog.51cto.com/10511646/1933615

Construction and configuration of NFS server under Linux