linux for all

NFS mount in ubuntu

2012-02-14T23:47:00.004-08:00

Ubuntu Linux: NFS Client Configuration To Mount NFS Share

NFS (Network File System) client allows you to access shared directory from Linux client. The computer sharing the directory is called the NFS server (it can be NAS server too) and the computers or devices connecting to that server are called clients. The clients need to use the mount command to access the shared directory.
Ubuntu NFS

You need to install nfs-command package as follows (open terminal and type the following command):
$ sudo apt-get update
$ sudo apt-get install nfs-common
Sample outputs:

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
libgssglue1 libnfsidmap2 librpcsecgss3 portmap
The following NEW packages will be installed:
libgssglue1 libnfsidmap2 librpcsecgss3 nfs-common portmap
0 upgraded, 5 newly installed, 0 to remove and 0 not upgraded.
Need to get 333kB of archives.
After this operation, 1,126kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Get:1 http://archive.ubuntu.com/ubuntu/ lucid/main libgssglue1 0.1-4 [22.4kB]
Get:2 http://archive.ubuntu.com/ubuntu/ lucid/main libnfsidmap2 0.23-2 [29.1kB]
Get:3 http://archive.ubuntu.com/ubuntu/ lucid/main librpcsecgss3 0.19-2 [33.1kB]
Get:4 http://archive.ubuntu.com/ubuntu/ lucid/main portmap 6.0.0-1ubuntu2 [37.2kB]
Get:5 http://archive.ubuntu.com/ubuntu/ lucid/main nfs-common 1:1.2.0-4ubuntu4 [212kB]
Fetched 333kB in 3s (95.3kB/s)
Preconfiguring packages ...
Selecting previously deselected package libgssglue1.
(Reading database ... 161647 files and directories currently installed.)
Unpacking libgssglue1 (from .../libgssglue1_0.1-4_i386.deb) ...
Selecting previously deselected package libnfsidmap2.
Unpacking libnfsidmap2 (from .../libnfsidmap2_0.23-2_i386.deb) ...
Selecting previously deselected package librpcsecgss3.
Unpacking librpcsecgss3 (from .../librpcsecgss3_0.19-2_i386.deb) ...
Selecting previously deselected package portmap.
Unpacking portmap (from .../portmap_6.0.0-1ubuntu2_i386.deb) ...
Selecting previously deselected package nfs-common.
Unpacking nfs-common (from .../nfs-common_1%3a1.2.0-4ubuntu4_i386.deb) ...
Processing triggers for man-db ...
Processing triggers for ureadahead ...
Setting up libgssglue1 (0.1-4) ...
Setting up libnfsidmap2 (0.23-2) ...
Setting up librpcsecgss3 (0.19-2) ...
Setting up portmap (6.0.0-1ubuntu2) ...
portmap start/running, process 4193
Setting up nfs-common (1:1.2.0-4ubuntu4) ...
Creating config file /etc/idmapd.conf with new version
Creating config file /etc/default/nfs-common with new version
Adding system user `statd' (UID 116) ...
Adding new user `statd' (UID 116) with group `nogroup' ...
Not creating home directory `/var/lib/nfs'.
statd start/running, process 4416
gssd stop/pre-start, process 4441
idmapd stop/pre-start, process 4469
Processing triggers for libc-bin ...
ldconfig deferred processing now taking place

Task: See The List Of All Shared Directories

Type the following command:
$ showmount -e server-Ip-address
$ showmount -e 192.168.1.1
Sample outputs from my 192.168.1.1 NFS server:

Export list for 192.168.1.1:
/viveks
/Web
/Usb
/Recordings
/Public
/Network Recycle Bin 1
/Multimedia
/Download

Task: Mount Shared Directory

Now mount /Public directory as follows>:
$ sudo mkdir /nfs
$ sudo mount -o soft,intr,rsize=8192,wsize=8192 192.168.1.1:/Public /nfs
$ df -h
Sample outputs:

/dev/sda5 477G 25G 428G 6% /
none 4.2G 398k 4.2G 1% /dev
none 4.2G 377k 4.2G 1% /dev/shm
none 4.2G 230k 4.2G 1% /var/run
none 4.2G 0 4.2G 0% /var/lock
none 4.2G 0 4.2G 0% /lib/init/rw
192.168.1.1:/Public 491G 208M 491G 1% /nfs

How do I Access My Files Using NFS?

Just go to mount point i.e. /nfs directory with the cd command:
cd /nfs
ls
gedit file.c
How Do I Mount NFS Automatically After Reboot?

Edit /etc/fstab, enter:
$ sudo vi /etc/fstab
OR use gui text editor such as gedit:
$ sudo gedit /etc/fstab
Append the following line:

192.168.1.1:/Public /nfs nfs soft,intr,rsize=8192,wsize=8192

Save and close the file.
How Do I Remove Mounted NFS Directory (unmount NFS)?

Type the following command:
$ cd
$ sudo umount /nfs
$ df -H

2009-05-30T01:08:00.000-07:00

FRANCIS FLORIANO FERNANDES
RHCE CCNA MCTS CERTIFIED
EMAIL:fernfrancis@gmail.com

The post here are with respect to Centos or fedora core

INDEX

1- Dspace Installation through scripts
2- Installing FTP server through script
3- Installing and configuring DNS server through scripts
4- Some Useful linux commands
5- Mounting a NTFS partition on linux
6- Shell Scripting
7- rpm commands for system admin
8- Jboss Installation

some useful linux commands

2009-04-08T03:35:00.000-07:00

linux geeks check out these are some useful commands
System information commands
Archive
Backup tools
CDROM support
Character set
DEB packages
Disk Space
files and directories
File search
File system Analysis
Filesystem SWAP
Format a Filesystem
IPTABLES
Monitoring and debugging
Mounting a Filesystem
Networking
Others useful commands
Permission on Files
RPM Packages
samba
Shutdown, Restart
Special Attributes on files
Text Manipulation
Users and Groups
View file content
yum

for further reference check out this site
hope this is of help to you guys out there

Setting up a DNS Server

2009-02-14T02:14:00.000-08:00

buddies use this script for DNS installation on a fedora core8 system.the script is based on a classful subnet mask ie only class C (255.255.255.0)I am still working on a dns script for RHEL 5 and a general script for all valid subnets.current script is avail here
the necessary rpms for fedora8 can be obtained here

rpm command system admin

2009-02-11T23:02:00.000-08:00

These are some rpm commands a system Admin must know for daily use ,i too did not know the proper useage of these commands learnt this from a friend and Internet i have put up these commands for quick reference for some linux beginners, hope someone finds them useful.

1-Install a RPM
rpm -ivh package-name.rpm
eg: epel-release-5-3.noarch.rpm

2- Update a RPM
rpm -Uvh package-name.rpm
eg: rpm -Uvh epel-release-5-3.noarch.rpm

3- List contents of installed RPM
rpm -qvl package-name
eg: rpm -qvl epel-release

output is as follows
-rw-r--r-- 1 root root 1698 Apr 3 2007 /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
-rw-r--r-- 1 root root 1054 Apr 25 2008 /etc/yum.repos.d/epel-testing.repo
-rw-r--r-- 1 root root 954 Apr 25 2008 /etc/yum.repos.d/epel.repo
drwxr-xr-x 2 root root 0 Apr 25 2008 /usr/share/doc/epel-release-5
-rw-r--r-- 1 root root 18385 Apr 3 2007 /usr/share/doc/epel-release-5/GPL

4-List contents of a RPM

rpm -qlp package-name.rpm
eg: rpm -qlp epel-release-5-3.noarch.rpm

output is as follows
/etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
/etc/yum.repos.d/epel-testing.repo
/etc/yum.repos.d/epel.repo
/usr/share/doc/epel-release-5
/usr/share/doc/epel-release-5/GPL

5-Print information about an installed RPM

rpm -qi package-name
eg: rpm -qi epel-release

output is as follows
Name : epel-release Relocations: (not relocatable)
Version : 5 Vendor: Fedora Project
Release : 3 Build Date: Fri 25 Apr 2008 10:16:23 PM GST
Install Date: Wed 04 Aug 2010 10:02:08 PM GST Build Host: ppc2.fedora.redhat.com
Group : System Environment/Base Source RPM: epel-release-5-3.src.rpm
Size : 22091 License: GPL
Signature : DSA/SHA1, Sat 26 Apr 2008 04:03:47 AM GST, Key ID 119cc036217521f6
Packager : Fedora Project
URL : http://download.fedoraproject.org/pub/epel
Summary : Extra Packages for Enterprise Linux repository configuration
Description : This package contains the Extra Packages for Enterprise Linux (EPEL) repository GPG key as well as configuration for yum.

6-Print information about a RPM
rpm -qpi package-name.rpm
eg rpm -qpi epel-release-5-3.noarch.rpm

output is as follows
Name : epel-release Relocations: (not relocatable)
Version : 5 Vendor: Fedora Project
Release : 3 Build Date: Fri 25 Apr 2008 10:16:23 PM GST
Install Date: (not installed) Build Host: ppc2.fedora.redhat.com
Group : System Environment/Base Source RPM: epel-release-5-3.src.rpm
Size : 22091 License: GPL
Signature : DSA/SHA1, Sat 26 Apr 2008 04:03:47 AM GST, Key ID 119cc036217521f6
Packager : Fedora Project
URL : http://download.fedoraproject.org/pub/epel
Summary : Extra Packages for Enterprise Linux repository configuration
Description : This package contains the Extra Packages for Enterprise Linux (EPEL) repository
GPG key as well as configuration for yum.

7-List all installed RPM on your system

rpm -qa

8-Search for a installed RPM

rpm -qa | grep package-name
rpm -qa | grep epel-release

9-Print which package a file belongs

rpm -qf /path/to/file
eg : rpm -qf /usr/share/doc/epel-release-5

10-List out configuration file for a RPM

rpm -qc package-name
eg: rpm -qc epel-release

11-List package dependencies

rpm -qpR package-name.rpm
eg: rpm -qpR epel-release-5-3.noarch.rpm

12-Integrity check
rpm -V package-name
rpm -V epel-release

13-Integrity check for a RPM

rpm -Vp package-name.rpm
eg: rpm -Vp epel-release-5-3.noarch.rpm

14-Extract files from a RPM into current directory
rpm2cpio package-name.rpm | cpio -idv
eg: rpm2cpio epel-release-5-3.noarch.rpm | cpio -idv

15-To compile a rpm

rpmbuild -ba something.spec

16- compile a rpm from its source file
rpmbuild --rebuild package-name.src.rpm

Installing FTP server

2009-02-11T22:03:00.000-08:00

To run the code on RHEL5 please edit the first line in the code,ie the proper rpm for the version must be installed. for any clarification please contact me at Email

The script here is mainly for installing a simple ftp server,its tested on a fedora core 8 system
the script can be downloaded from HERE

Also for anonymous upload from remote use this link, all the uploads should be done in the folder userbox in the pub folder when u open the ftp transaction

Jboss Installation

2009-02-11T00:58:00.000-08:00

What is Jboss ?
JBoss is an open source project, sponsored by Red Hat, aimed at building a Java-based middleware application server.
Middleware is a piece of software that connects two or more software applications so that they can exchange data.

In short " jboss is nothing but multiple instances of tomcat "

so let c how we can install jboss on centos 5.4

First of all you need to check the java version installed

to check the java version on the terminal just type java -version

now corresponding to the version of jboss to be installed the exact version of java need to be installed
for example jboss-5.1.0.GA-jdk6.zip version of jboss required jdk6

The verison for java can be obtained from this website
http://www.oracle.com/technetwork/java/javase/downloads/index.html

JAVA Installation

In this post i am using jdk version jdk-6u16-linux-x64-rpm.bin

first give executable right to the file this can be done by the following command
chmod u+x jdk-6u16-linux-x64-rpm.bin

next begin the installation by ./chmod u+x jdk-6u16-linux-x64-rpm.bin

remove the previous version of java by issuing the following command
rm -rf /usr/bin/java

create a link to the java executable by doing the following
cd /usr/bin
ln -s /usr/java/jdk1.6.0_16/bin/java java

set the enviroment variable
JAVA_HOME=/usr/java/jdk1.6.0_16
export JAVA_HOME

command make entries in profile so the the enviroment variable are set on reboot

add the above two lines to /etc/profile

check the version of java again .
Jboss Installation

Download JBoss AS from http://jboss.org/jbossas/downloads
Here i have installed jboss JBoss AS 5.1.0.GA.zip

copy the file to /usr/local/

unzip the file issuing the command unzip JBoss AS 5.1.0.GA.zip

jboss must not be started as root ao adda user jboss or any other user
no add a user jboss using useradd jboss

change the ownership of jboss by chown jboss.jboss JBoss AS 5.1.0.GA

Switch user using su - jboss

jboss/bin/run.sh

next start jboss by the command

jboss AS 5.1.0.GA/bin/run.sh


by issuing this jboss is started on the localhost this is the same as issuing this command


jboss AS 5.1.0.GA/bin/run.sh -b 127.0.0.1 -c default

to start jboss on all interfaces use the following command

jbossAS 5.1.0.GA/bin/run.sh -b 0.0.0.0 -c default

to access jboss open a browser and enter th following url

http://your_ip_server:8080

2009-02-04T21:35:00.000-08:00

Google tricks

2009-02-02T23:23:00.000-08:00

1- To find a particular mp3 use the following code
?intitle:index.of? mp3 (song)(artist)
Example: ?intitle:index.of? mp3 jackson

2- Finding a file
inurl:microsoft filetype:iso
microsoft can be changed to adobe , iso to zip, rar etc

3- Searching a site
site:mediafire.com (file name)
mediafire.com cna be replaced by any other site

4- Find Free Anonymous Web Proxies
inurl:”nph-proxy.cgi” “start using cgiproxy”

sites frequently used

2009-02-02T22:06:00.000-08:00

Movies Music & Softwares
www.4shared.com
www.amaderforum.com
www.rapidshare.com
www.youtube.com

Proxy Server
https://flyproxy.com
https://www.server16.kproxy.com
http://www.hidemyway.com
http://www.hidemyass.com
http://surfshield.net
http://kproxy.com/index.jsp
http://www.proxifree.com
http://www.anonproxy.info
http://www.3proxy.com
http://www.google.com/translate?langpair=en|en&u=www.blockedwebsitesite.com

for orkut
http://www.power.com
http://proxy4orkut.com/
u94.exe

Books
www.ebookee.com
www.freebookspot.com
www.4shared.com

Administrator web tools
www.infosniper.net
www.whatismyip.com
www.selfseo.com

Administrators configuration help sites
http://www.qmailrocks.org/clamspam_rh.htm

Online contact form hosting
www.emailmeform.com

Informative sites
www.howstuffworks.com

Online Photo-editing sites
www.lunapic.com
www.splashup.com
www.picnik.com
www.fotoflexer.com

Dspace Installation

2009-01-20T20:12:00.000-08:00

hey guys i have made life easy creating scripts for dspace installation they can be found at the following URL

http://www.mediafire.com/?sharekey=0dec823c57d026a691b20cc0d07ba4d2ca740d89635e2746

These are tested scripts,but use it at your own risk

2008-09-24T21:28:00.000-07:00

These are the steps to be followedfor mounting a NTFS partition on linux, hope this is of any use to you all linux fans

step1:-
rpm -ivh dkms-* fuse-*

step2:-
useradd machbuild

step3:-
passwd -d machbuild

step4:-
mkdir /windows
fdisk -l (All drives will be displayed and select the appropriate drive from here (sda1 or sdc1)
mount -t ntfs-3g /dev/sda1 /windows

Shell Scripting

2008-02-02T08:39:00.000-08:00

In this post scripts are written which helps a lot

This script is used to mount a shared windows drive on a linux system. make sure you have samba installed before you run this script.the script is encoded and can be found here the same code is written in c for C Programmers C-CODE