Nfs server and client configuration

Nfs server and client configuration overview: Server: oracle11g: 10.80.11.202 client: oracle10g: 10.80.11.1771. Configuration Server: NFS is installed by default in RedhatLinux, check whether the rpm package has been installed again. prerequisite: rpm... nfs server and client configuration overview: Server: oracle11g: 10.80.11.202 client: oracle10g: 10.80.11.177 1. Configure Server: NFS is installed by default in Redhat Linux, re-confirm whether the appropriate rpm package has been installed prerequisite check: rpm-qa | grep nfsnfs-utils-1.0.9-16.el5nfs-utils-lib-1.0.8-7.2 configuration/etc/exports: [root @ oracle11g etc] # vi exports/tmp 10.80.11.177 (rw, Sync) "exports" 1L, 28C written start nfs service: [root @ oracle11g etc] # service nfs startStarting NFS services: [OK] Starting NFS quotas: [OK] Starting NFS daemon: [OK] Starting NFS mountd: [OK] ----- # chkconfig -- level 35 nfs on // -- Optional ---- sets the NFS automatic start mode. make sure that the server service has been configured: [root @ oracle11g etc] # exportfs/tmp 10.80.11.177 2. client configuration: Select the nfs mount Directory: [root @ ora10g/] # cd/tmp [root @ ora10g tmp] # mkdir nfs [root @ ora10g tmp] # l Skeyring-v0IRux mapping-root nfs vmware-tools-distrib mount nfs: [root @ ora10g tmp] # mount-t nfs 10.80.11.202: /tmp/nfs [root @ ora10g tmp] # mount | grep nfssunrpc on/var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) 10.80.11.202: /tmp on/tmp/nfs type nfs (rw, addr = 10.80.11.202) [root @ ora10g tmp] # cd nfs [root @ ora10g nfs] # ll --------- check the content of the remote server/tmp total 56drwx ------ 3 root 4096 Jul 8 gconfd-rootsr Wxr-xr-x 1 root 0 Jul 8 23:44 gedit. root.2863163862-rw-r -- 1 54321 54321 59 Jul 9 hc_trace_name.lstdrwxr-xr-x 2 54321 54321 4096 Jul 9 56 hsperfdata_oracledrwx ------ 2 root 4096 Jul 8 keyring-iHRbxR ..... [Root @ ora10g nfs] # Modify the/etc/fstab file to automatically mount the nfs directory at startup ----------- optional ---------- modify/etc/fstab to automatically mount the nfs directory at startup [root @ ora10g nfs] # vi/etc/fstab [root @ ora10g nfs] # vi/etc/fstabLABEL = // ext3 defaults 1 1 LABEL =/boot ext3 defaults 1 2 tmpfs/dev /shm tmpfs defaults 0 0 devpts/dev/pts devpts gid = 5, mode = 620 0 0 sysfs/sys sysfs defaults 0 0 proc/proc defaults 0 0 LABEL = SWAP-sda3 swap defaults 0 010.8 0.11.202:/tmp/nfs defaults 0 0 ~ FYI: The NFS configuration file sets the NFS service configuration file to the content format of the etc/exportsexports file: <输出目录> [Client 1 option (access permission, user ING, others)] [client 2 option (access permission, user ING, others)] 1. output Directory: the directory to be shared to the client in the NFS system. 2. client: client is a commonly used method for computer clients that can access the NFS output directory in the network. • host 192.168.0.200 with the specified IP address • All hosts in the specified subnet, 192.168.0.0/24 • host a.liusuping.com with the specified domain name • all hosts in the specified domain * .liusuping.com • All hosts * 3. option: it is used to set the access permission and user ING of the output directory. NFS has three main options: access permission options • set output directory read-only ro • set output directory read/write rw user ing options • all_squash maps all common users and groups remotely accessed to anonymous users or user groups (nfsnobody); • no_all_squash and all_squash are reversed (default). • root_squash maps root users and groups to anonymous users or user groups (default). • no_root_squash and rootsquash are reversed; • anonuid = xxx maps all remotely accessed users to anonymous users and specifies the user as a local user (UID = xxx ); • anongid = xxx maps all remotely accessed user groups to anonymous user group accounts, and specifies the anonymous user group account as the local user group account (GID = xxx ); other options • secure limits the client to be able to connect to the nfs server from a TCP/IP port smaller than 1024 (default setting); • insecure allows the client to connect to the server from a TCP/IP port larger than 1024; • sync writes data to the memory buffer and disk synchronously, which is less efficient but ensures data consistency. • async saves data in the memory buffer and writes it to the disk only when necessary; • wdelay checks whether there are related write operations. If yes, the write operations can be executed together to improve the efficiency (default setting). • no_wdelay performs the write operation immediately, it should be used with sync; • If the subtree output directory is a sub-directory, the nfs server will check the permissions of its parent directory (default setting); • no_subtree even if the output directory is a sub-directory, the nfs server does not check the permissions of its parent directory, which improves the efficiency.