Firefox 16, a treat for developers http://t.co/cnd27CzT
NFS Server installation and configuration in CentOS 6.3, RHEL 6.3 and Scientific Linux 6.3
NFS, Network File System, is a server-client protocol used for sharing files between linux/unix to unix/linux systems. NFS enables you to mount a remote share locally. You can then directly access any of the files on that remote share.
Scenario
In this how-to I use two systems running with CentOS 6.3, but it will work on any based distros.
NFS Server IP Address : 192.168.1.250/24 NFS Client IP Address : 192.168.1.251/24
1. Install NFS in Server system
[root@nfs ~]# yum install nfs* -y
2. Start NFS service
[root@nfs ~]# service rpcbind start Starting rpcbind: [ OK ] [root@nfs ~]# service nfs start Starting NFS services: [ OK ] Starting NFS mountd: [ OK ] Starting NFS daemon: [ OK ] [root@nfs ~]# chkconfig rpcbind on [root@nfs ~]# chkconfig nfs on
3. Install NFS in Client System
[root@client unixmen]# yum install nfs* -y
4. Start NFS service
[root@client unixmen]# service rpcbind start [root@client unixmen]# service nfs start [root@client unixmen]# chkconfig rpcbind on [root@client unixmen]# chkconfig nfs on
5. Create shared directories in server
Create a shared directory named ‘/var/unixmen_share’ in server and let the client users to read and write files in that directory.
[root@nfs ~]# mkdir /var/unixmen_share [root@nfs ~]# chmod 755 /var/unixmen_share/
6. Export shared directory on NFS Server
Open /etc/exports file and add the entry as shown below
[root@nfs ~]# vi /etc/exports /var/unixmen_share/ 192.168.1.0/24(rw,sync,no_root_squash,no_all_squash)
where,
/var/unixmen_share – shared directory
192.168.1.0/24 – IP address range of clients
rw – Writable permission to shared folder
sync – Synchronize shared directory
no_root_squash – Enable root privilege
no_all_squash – Enable user’s authority
7. Restart the NFS service.
[root@nfs ~]# service nfs restart Shutting down NFS daemon: [ OK ] Shutting down NFS mountd: [ OK ] Starting NFS services: [ OK ] Starting NFS mountd: [ OK ] Starting NFS daemon: [ OK ]
8. Mount the share directory in client
Create a mount point to mount the share directory ‘var/unixmen_local’ which we created in the earlier step 5.
[root@client unixmen]# mkdir /var/nfs_share
Mount the share from server to client as shown below
[root@client unixmen]# mount -t nfs 192.168.1.250:/var/unixmen_share/ /var/nfs_share/ mount.nfs: Connection timed out
Probably it will show a connection timed out issue which means the firewall is blocking NFS server. To allow NFS server to access from the outbound, goto NFS server system and add the as shown below in the ‘etc/sysconfig/iptables’ file.
[root@nfs ~]# vi /etc/sysconfig/iptables # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter -A INPUT -m state --state NEW -m udp -p udp --dport 2049 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 2049 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 111 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 111 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 32769 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 32803 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 892 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 892 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 875 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 875 -j ACCEPT -A INPUT -m state --state NEW -m udp -p udp --dport 662 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 662 -j ACCEPT :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT
Now restart the iptables service
[root@nfs ~]# service iptables restart iptables: Flushing firewall rules: [ OK ] iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Unloading modules: [ OK ] iptables: Applying firewall rules: [ OK
Again mount the share in client system
[root@client unixmen]# mount -t nfs 192.168.1.250:/var/unixmen_share/ /var/nfs_share/ [root@client unixmen]#
Now the NFS share will mount without any connection timed out error.
9. Verify NFS
Verify the share from the server is mounted or not using ‘mount’ command.
[root@client unixmen]# mount /dev/mapper/vg_client-lv_root on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0") /dev/sda1 on /boot type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
nfsd on /proc/fs/nfsd type nfsd (rw)
192.168.1.250:/var/unixmen_share/ on /var/nfs_share type nfs (rw,vers=4,addr=192.168.1.250,clientaddr=192.168.1.251)
10. Automount the Shares
To mount the shares automatically instead of mounting them manually at every reboot, add the following lines shown in bold in the ‘/etc/fstab’ file of client system.
[root@client unixmen]# vi /etc/fstab # # /etc/fstab # Created by anaconda on Sun Mar 3 22:10:15 2013 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info #
/dev/mapper/vg_client-lv_root / ext4 defaults 1 1 UUID=1aa7d041-056b-48f4-a773-f713759e981f /boot ext4 defaults 1 2 /dev/mapper/vg_client-lv_swap swap swap defaults 0 0 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 proc defaults 0 0 192.168.1.250:/var/unixmen_share/ /var/nfs_share/ nfs rw,sync,hard,intr 0 0
Reboot the client system and check the share whether it is automatically mounted or not.
[root@client unixmen]# mount /dev/mapper/vg_client-lv_root on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw,rootcontext="system_u:object_r:tmpfs_t:s0") /dev/sda1 on /boot type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) nfsd on /proc/fs/nfsd type nfsd (rw) 192.168.1.250:/var/unixmen_share/ on /var/nfs_share type nfs (rw,vers=4,addr=192.168.1.250,clientaddr=192.168.1.251)
Thats it. Now NFS server is ready to use.
Like us on Facebook
This week Top Posts 
Top Things to do After Installing Ubuntu 13.04 ‘Raring Ringtail’ : Ubuntu 13.04 Raring Ringtail final is almost out. The final release it scheduled for release on Apri...0 comment(s) |
Install lamp with 1 command in Ubuntu 12.10, 13.04 Raring Ringtail & LinuxMint13 : Updated: 10/09/2012 :LAMP (Linux, Apache, MySQL and PHP) is an open source Web development platform ...0 comment(s) |
Howto: Upgrade to Ubuntu 13.04 Raring Ringtail from 12.04, 12,10 | Desktop & Server : Updated 05-04-2013: Ubuntu 13.04 Raring Ringtail will be released Soon, If you have ubuntu 12,10, 12...0 comment(s) |
Install and Configure Samba share in Ubuntu 13.04 Raring Ringtail , 12.10, 12.04| Howto : Updated 05-04-2013: One of the most asked features for Samba is a graphical user interface to help w...0 comment(s) |
How to Find Default Gateway in Linux : A gateway is a node or a router that acts as an access point to passes network data from local netwo...0 comment(s) |
How to use Remote Desktop in Ubuntu : Sometimes, we need to access our computer from other locations when we’re not at home and such. This...0 comment(s) |
Recent Posts
- Setup the Raspberry Pi as a NAS
- How to Monitor Filesystem Events with incron
- Useful Commands for Linux Users – Episode 6
- Deadly Linux Commands
- Determine Your Specifications from Command-Line
- Automatically Change the Desktop Wallpaper Using Variety on Ubuntu/Linux Mint
- How to Find Default Gateway in Linux
- Setup Backup Server Using rsnapshot
- How to Disable/Change Default PDF Viewer in Mozilla Firefox
- Dictionaries in Python
Recent Comments



















cave
| #
it can be used to talk or chat through the internet,
it is using strong encryption.
but for example TOR is using some obfuscation because some countrys try to block all outgoing connections which can not be scanned with DPI
And the TOR Project is facing an arms race in obfuscation and encryption detection.
cave
| #
You can friend someone if you give him your public Certificate.
both peers must friend each other.
i suggest to not enter a valid e-mail address. it is not necessary, but pgp needs a mail addy. something@something.so fits perfectly… :)
http://redd.it/18vsq5 <– faq, featurelist, todo, howto, useful links to manual wiki etc, …
you can connect to chatservers, which will give you access to chatlobby, where always some people are lurking.
#1 https://www.f2f-fr.net/w2c/en/
#2 http://retrosharechatserver.no-ip.org/w2c/en/
and in this rooms, you can find other people to talk and friend.
cave
| #
http://redd.it/18vsq5
please have a look at this link. it is a FAQ, QuickTip, HowTo, etc etc etc …
If you want to make friends, please use the Chatservers.
#1 https://www.f2f-fr.net/w2c/en/
#2 http://retrosharechatserver.no-ip.org/w2c/en/
if you enter your certificate, the chatserver adds you as his friend and shows his certificate too add him to your friends.
After the connection to the chatservers is established, you can join a few chatrooms where the chatserver is lurking.
in this rooms are other people too help you and make first friends and get into the network.
add friends only with wisdom. if you friend some policeman, it will be problematic like in real life.
best is to add only people you trust in real life or trust from other communitys too. and not to add random unkown strangers.
If you have questions, ask them in the chatlobbys, there is always someone to answer them.
please read http://redd.it/18vsq5
or question me here :)
Ladi Oyekanmi
| #
Could you please assist in step by step on how to install nagios on solaris
Adhraa
| #
Greate tutorial :)