Configuring NFS Server

[1]	It's the Configuration on the system you want to build NFS server.

[root@dlp ~]# yum -y install nfs-utils [root@dlp ~]# vi /etc/idmapd.conf # line 5: uncomment and change to your domain name Domain = server.world [root@dlp ~]# vi /etc/exports # write like below *note /home 10.0.0.0/24(rw,sync,no_root_squash,no_all_squash) # *note /home ⇒ shared directory 10.0.0.0/24 ⇒ range of networks NFS permits accesses rw ⇒ writable sync ⇒ synchronize no_root_squash ⇒ enable root privilege no_all_squash ⇒ enable users' authority [root@dlp ~]# /etc/rc.d/init.d/rpcbind start Starting rpcbind: [  OK  ] [root@dlp ~]# /etc/rc.d/init.d/nfslock start Starting NFS statd: [  OK  ] [root@dlp ~]# /etc/rc.d/init.d/nfs start RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. Installing knfsd (copyright (C) 1996 okir@monad.swb.de). Starting NFS services: [  OK  ] Starting NFS daemon: NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory NFSD: starting 90-second grace period [ OK ] Starting NFS mountd: [ OK ] [  OK  ] Starting RPC idmapd: [ OK ] [  OK  ] [root@dlp ~]# chkconfig  rpcbind on [root@dlp ~]# chkconfig nfslock on [root@dlp ~]# chkconfig nfs on Configuration on NFS clients [root@www ~]# yum -y install nfs-utils # install [root@www ~]# vi /etc/idmapd.conf # line 5: uncomment and change to your domain name Domain = server.world [root@www ~]# /etc/rc.d/init.d/rpcbind start Starting rpcbind: [  OK  ] [root@www ~]# /etc/rc.d/init.d/rpcidmapd start Starting RPC idmapd: RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. [ OK ] [root@www ~]# /etc/rc.d/init.d/nfslock start Starting NFS statd: [  OK  ] [root@www ~]# /etc/rc.d/init.d/netfs start Mounting other filesystems: [  OK  ] [root@www ~]# chkconfig rpcbind on [root@www ~]# chkconfig rpcidmapd on [root@www ~]# chkconfig nfslock on [root@www ~]# chkconfig netfs on [root@www ~]# mount -t nfs dlp.server.world:/home /home [root@www ~]# df -h Mounted on 192.168.xx.x:/var/spool/asterisk/incoming      272G   36G  222G  14% /var/www/html/recordings/incoming # home directory on NFS is mounted [root@www ~]# vi /etc/fstab # add at the lat line:  server mounts to the one on NFS /192.168.xx.x:/var/spool/asterisk/incoming  /var/www/html/recordings/incomin                                  g             nfs  hard,intr   0 0

Finding a File containing a particular text string in Linux server

You need to use grep command. grep searches the given input FILEs for lines containing a match or a text string.

grep command form (syntax)

grep “text string to search” directory-path or ip addtress

Examples

For example search for a string called redeem reward in all text files located in /home/guest/*.txt directory, use
$ grep "192.168.xx.xx" /home/guest/*.txt

Task: Search all subdirectories recursively

You can search for a text string all files under each directory, recursively with -roption:
$ grep -r "192.168.xx.xx" /home/guest

Task: Only print filenames

By default, grep command prints the matching lines You can pass -H option to print the filename for each match.
$ grep -H -r “192.168.xx.xx” /home/guest
Output:

...
filename.txt: 192.168.xx.xx
...

To just print the filename use cut command as follows:
$ grep -H vivek /etc/* -R | cut -d: -f1



Output: