The Linux Juggernaut

Today I found some interesting hack about Mozilla/Firefox. I am in need of java in my Ubuntu machine. I have installed java, but I am not able to see any java related sites in my browser So when I have started searching for related topics, I found my answer how to check java is configured in your browser or not. I came to know about Firefox hidden “about protocol”. Though my browser is showing … Continue Reading

Webmin is a web based administration tool to do daily admin activities.
by using this tool we can configure.
1. User management
2. Disk management such as RAID, LVM etc.
3. Disk Quotas
4. Services/Servers such as apache, DNS, PHP, Mysql etc
5. Will allow us to confgire/controll many systems through single interface(ie through a web browser).

For example you want to controle your linux machine remotly through no Linux machines such as windows or … Continue Reading

Its long time back I have learnt Heartbeat clustering around March-2008, but still this point I never implemented for production servers. This is my first attempt to do it and I am successful in implementing it for two node fail-over Cluster. Clustering is very complex and very advanced topic which I cannot deal with in one post. In this post I will give you some basics of Clustering, advantages of Clustering and configuration … Continue Reading

How to view/list only directories in Linux?
Ans : This can be achieved in two ways
1. Through ls command
2. Through find command

With ls we have to use grep to get the directory listings.
Ls –l grep ^d

Example :
[root@test surendra_a]# ls -l grep ^d
d——— 2 surendra_a surendra_a 4096 Sep 8 09:54 HTWFAIP
drwxrwxr-x 2 surendra_a root 4096 Nov 27 12:30 LinuxCBT – RHEL5
drwxrwxr-x 2 surendra_a root 4096 … Continue Reading

How to mount NFS(Network File System) on a Local Ubuntu?
Ans : As Ubuntu will not install most of the tools by default. In that NFS tool is also one.

When you try to mount NFS share using mount command, with out a client you will get the following error
mount -t nfs v-itig41:/var/data /mnt
mount: wrong fs type, bad option, bad superblock on v-itig41:/var/data,
missing codepage or helper program, or other error
(for … Continue Reading