Important Linux Interview Questions with Answers
What are the main differences between RHEL4 & RHEL5?
Difference between RHEL 4 and RHEL 5 :
1) In RHEL 4 SELinux Block only 13 services, But on RHEL 5 SElinux
Block 80 services.
2) RHEL 4 have ext2 filesystem, but RHEL 5 we have ext3 filesystem that
3) RHEL 4 have no virtualization Feature, but in RHEL 5 we have virtualization
4) In RHEL 4 we have no Yum, But in RHEL 5 we have Yum available.
Any many more....... need more time to describe it
no yum server
mim 256 mb ram
better support for
Red Hat Directory
Ext4 (on latest version)
What is the difference between Telnet and SSH?
SSH using PORT 22 and telnet using Port 23 ssh is a secured shell,
where telnet is not a secured one.when you ssh to trasnfer data between
a system, the data will be send in the encrypted form, where the hacker
cannot encode or decode it. While you telnet,the data send between the
system is alphabetical format(ASCII), where every one can understand. More
over as per network security, telnet and ftp are prohibited. Always, trust
SSL based data transfer.
How to recover a deleted file in linux ?
Determine the partition in which the file you wish to recover was located
by using the command pwd (present work directory) and unmount the current
directory by using the command umount. Use the "debugfs" command. The "debugfs"
command is used to handle most major errors and bugs that can occur in
Linux by using #debugfs /usr/directory name.Use the "lsdel" once you have
begun the debug of the file system. Recover those files you wish
to undelete and take backup of that file.
What is the difference between home directory and working directory?
Home directory is one over which user have complete control and it
is its default working directory when its logs in. While the working
directory is the users current directory which may or may not be his home
What is the minimum number of partitions you need to install Linux?
Well in my opinion is case if minimum nukber of partition is asked
then better answer would be
You can install linux with minimum of three partitions.
Have a Linux Problem
Linux Forum - Do
you have a Linux Question?
Certification, System Administration, Programming, Networking Books
Linux Home: Linux
System Administration Hints and Tips
(c) www.gotothings.com All material on this site is
Every effort is made to ensure the content integrity.
Information used on this site is at your own risk.
All product names are trademarks of their respective
The site www.gotothings.com is in no way affiliated
with or endorsed by any company listed at this site.
Any unauthorised copying or mirroring is prohibited.