Linux

ITIL history

CCTA - Central Computer and Telecommunications Agency

Describe ITIL history. How does the ITIL started. What is the History of ITIL. In the late 1980's, the British govt. asked the Central Computer and Telecommunications Agency (CCTA) to structure the IT organisations of the British government agencies. This resulted in the IT Infrastructure Library, a library of books describing best practices  ..

Acronym n terms abbreviations

ITIL Terms and acronyms

ACD Automatic call Distribution AM Availabilty Management AMIS Availability Management Information System ASP Application Service Provider BCM Business Capacity Management BCM Business Continuity Management BCP Business Continuity Plan BIA Business Impact Analysis BPO Business Process Outsourcing BRM Business Relationship Manager BSI British Standards Institution BSM Business Service Management CAB Change  ..

What is RASCI

What is RACI

How to use RACI chart? RACI Model a model used to help define who is responsible / accountable; The RACI model is built around a simple 2-dimensional matrix which shows the involvement of Functional Roles in a set of Activities. Involvement can be of different kinds: Responsibility, Accountability, Consultancy or Informed. R -  ..

Force fsck on next reboot

Force fsck using forcefsck file

I want to force fsck on the next reboot? How do I force fsck? Is there any configuration file that I need to alter to force fsck? fsck is used to check and optionally repair one or more Linux file systems. It is good practice not to disable the fsck filesystem scan.  ..

Ps what is process status D

Can I kill the process D

What does the status D indicate when i run ps aux command? Can I kill the process D? PROCESS STATE CODES D uninterruptible sleep (usually IO) R runnable (on run queue) S sleeping T traced or stopped Z a defunct ("zombie") process For  ..

Error xlib connection refused by server

Xlib: No protocol specified

Error: Xlib: connection to "xx.xx.xx.xx:0.0" refused by server Xlib: No protocol specified This error seems to be a x-terminal problem. In order to resolve this issue, please check the xauth package is installed in it. check the x-terminal is configured properly. check whether you are able to run xclock. # rpm -qa |  ..

How to install chrome

Google browser for linux

How to install chrome browser in linux? Google chrome browser can be simply installed in linux just by using yum command. In some cases you may not succeed with "yum" command, when there is no repo file. To "Enable Google YUM repository", Add following to /etc/yum.repos.d/google.repo file or create new google.repo  ..

Sudo or sudoers permission for start stop service

Visudo permission for accessing command service

How do I give new admin only permission to start and restart Apache web server? How do I setup sudo for the same via sudoers file? In redhat Linux or RHEL, the sudo command allows a user to execute the specified command as a superuser or as a specified user. The  ..

Change keyboard layout command line

Change keyboard language

How to change keyboard layout in linux terminal? To change the keyboard layout (e.g. to Spanish) in the Linux command line, type the following command # loadkeys es How to change keyboard language? To change keyboard language just press "alt+shift" keys together. when pressing the keys together the keyboard language gets changed.   ..

Find the pid of a running script

Return PID using ps and awk

Today when I was running my firefox, I ran into an issue and I thought to find the PID of the firefox and the command it was using. I'm sure it's totally overkill and there is a much easier way I didn't find to do this, but after some scouring  ..

Port forwarding using iptables 80 to 8080

Forward apache request to tomcat

How to forward all the request from apache to tomcat? How to do port forwarding using iptables? The applicaton developers run both apache and apache tomcat on same machines, The tomcat runs on port 8080 and it is used to serve Servlets and JSP Pages. The Servlets and JSP pages are not  ..

How to set date and time

Change date and time usind date command

How to change the date in linux operating system using date command? How can I set command from shell or command prompt? # date Sat Oct 15 00:08:09 IST 2011 The date command will just print the date. The -s along with date command is used to set the date. The below command  ..

How to filter filenames in ftp filezilla

FTP Client - filter filenames in ftp

How to filter file or directories in filezilla? How to restrict particular files from uploading into file server / FTP server? Use "Filename filters" option to filter the files like '.svn','.cvs','thumbs.db',etc,. from uploading/downloading. 1) Open Filezilla. 2) Go to View->Filename filters. Or use the shortcut "Ctrl+i". 3) You will get the "Directory listing filters" window  ..

Who is user nobody

What is the user nobody does

Who is the user nobody? Why linux use, the user nobody for security reasons? When you check mysql folder permissions which is under /opt/lampp/var/, you can see it is owned by user called "nobody". So, now you will be much interested to know about the user nobody. So atlast who is nobody? "nobody"  ..

How to install cassandra on centos

Second generation distributed database

Cassandra is a highly scalable, eventually consistent, distributed, structured key-value store. It's an alternative to SQL if you don't need relational data structures. The best part is it's super fast, and distributed. 1.Necessary Modules For cassandra server. yum -y install gcc-c++ make cmake python-devel bzip2-devel zlib-devel log4cpp-devel git git-core cronolog google-perftools-devel yum  ..

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