2012-01-08 06:06
Checking Free Space: In order to check the free and usage space per file system and directory and each sub directory we have two command df du the ‘df’ command reports o… Read More
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2012-01-08 06:01
Symbolic links: A symbolic link point to another file. We can display the link name and the referenced file by ‘ls –l’ #ls –l pf lrwxrwxrwx 1 root root… Read More
2012-01-08 06:00
Redirecting Input /Output The standard Output of command , which normally display on the terminal can be redirected into a file. Similarly standard error, which normally display on th… Read More
2012-01-08 05:44
User and Group Administrator There are three type of user account in Red hat Linux Super user or Administrative account Regular user account service account Su… Read More
2012-01-03 14:57
Vi, vim Editor Vi is the standard file editor for Unix and Vim is the standard file editor for Linux For Red hat Linux vi and Vim both are same There are three mode of vi editor comm… Read More
2012-01-03 14:54
Representation Of Media Devices: All the device file are stored in /dev/ Hard disk ; /dev/hdx Where x is a : /dev/hda : Primary master b… Read More
2012-01-03 14:52
Linux file system: Figure Root : it is an home directory of super user (root) administrator Etc : it is the location of all configuration file and dir… Read More
2012-01-03 14:50
File and Directory: ‘ll’ is used to display the information about the files and directory including date, time, users,group, size, name and permission. Four symbols are use… Read More
2012-01-03 14:47
Getting Help: The command that are used to get the help are discussed as : Whatis Display a short description of command , it uses a database that is updated nightly. Often not avail… Read More
2012-01-03 14:46
Moving and Renaming File and Directory Syntax: # mv : move /rename files and directory Example: # mv [option] file destination example: # mv t.txt /home/rohan/ more than one f… Read More
2012-01-03 14:44
Copying File and Directory: Copy file: Syntax: # cp [source]filename [destination] Copy directory #cp –r [source]directory [destination] to copy a directory into… Read More
2012-01-03 14:39
Creating file and Directory: Creating file: The ‘cat’ command is used to create a file Syntax: # cat > filename example: # cat > abc.txt (Ctrl +D) is used to… Read More
2012-01-03 14:34
Common Command Some of the Common system command are as follow: 1. Date : to display date and time 2. Cal : to display the calendar 3. Cal 11 2006 : display the calendar of Month 1… Read More
2012-01-03 14:32
Mode of Login There are two mode of login Text Mode (Alt+ctrl+F1) Graphical Mode (Alt+Ctrl+F7) In case of Text Mode Station2 Login : root Password : redhat [root@station2~]#… Read More
2012-01-03 14:30
Introduction: Unix is the first Operating system in the world, developed by Kem Thompson and Dennis Ritchie in 1969 at Bell Lab by AT&T Company IBM : AIX… Read More
2011-04-27 11:54
' this program converts Microsoft SQL Server databases to MySQL databases' (c) 2001-2005 Michael Kofler' http://www.kofler.cc/mysql' mssql2mysql-at-kofler.cc' LICENSE: GPL (Gnu Publi… Read More
2011-04-27 11:49
Mysql Startup TutorialCommon Required PackagesFollowing RPM are required to setup a normal Mysql database server.1. mysql-server2. mysql3. php-mysql (if php is going to access mysql)Use rpm… Read More
2011-04-27 09:43
/etc/iptables.up.rules# Generated by iptables-save v1.4.4 on Tue Jul 6 19:02:33 2010*nat:PREROUTING DROP [0:0]:OUTPUT ACCEPT [0:0]:POSTROUTING ACCEPT [0:0]-A PREROUTING -d 8.8.8.8 -i eth1 … Read More
2011-04-27 09:40
Editing file /etc/network/interfaces# This file describes the network interfaces available on your system# and how to activate them. For more information, see interfaces(5).# The loopback ne… Read More
2010-09-09 15:33
Relational Database - Codd's Rules !!!A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. C… Read More
2010-09-05 05:42
Apt-Get command line tool (Ubuntu's Advanced Packaging Tool) !!!The apt-get command is a powerful command-line tool used to work with Ubuntu's Advanced Packaging Tool (APT) performing suc… Read More
2010-09-05 05:38
PORTS NUMBERS : Just as the physical address (MAC address) and the logical address (IP address) helps to route the traffic to a particular machine on a network, it is the port that identi… Read More
2010-07-11 06:34
WEBMINWebmin is a web-based interface for system administration for Unix. Using any modern web browser, you can setup user accounts, Apache, DNS, file sharing and much more. Webmin remove… Read More
2010-03-14 08:20
How to break root password !!!Method 1: One of the advantages of single-user mode is that you do not need a boot CD-ROM; however, it does not give you the option to mount the file sys… Read More
2010-02-25 12:31
Privacy Policy for rhel5certs.blogspot.com/If you require any more information or have any questions about our privacy policy, please feel free to contact us by email at [email protected]… Read More
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