blockquote for style.css applicable to wordpress and blogger sites Blockquotes are useful in blogging or any website because with the help of blockquote you can highlight the text in box with border or borderless as per your choice. Many readers of my blog have asked the question about how to have a common blockquote which…
The tac command shows the output of cat command in reverse manner hence the name of this command is also in reverse form that is tac . As we know cat command is used to see the content of file,creating the new file and concatenating the two file also (If you do not know soon…
How to put slider shortcode only in home page in WordPress My personal blog is running in wordpress CMS. Today I want to put header on home page only. For this first I installed the WP slider plugin and set the all slides which I need. I got the slide shortcode which can be easily…
WordPress host IP changed not able to open wp-admin and site page looks scattered Today I was working on my Virtual Machine in my laptop and was trying to check some theme options.In Virtual Machine I have set ip address to be taken dynamically from DHCP server.Today my wifi change the ip address of Virtual…
Error: Could not stat() command file ‘/var/lib/nagios3/rw/nagios.cmd’! While working on Nagios Server in Ubuntu 12.04 LTS,I was setting external command and stuck with this error message. To solve the problem follow these commands sudo /etc/init.d/nagios3 stop sudo dpkg-statoverride –update –add nagios www-data 2710 /var/lib/nagios3/rw sudo dpkg-statoverride –update –add nagios nagios 751 /var/lib/nagios3 sudo /etc/init.d/nagios3 start…
Sorry, but Nagios is currently not checking for external commands, so your command will not be committed! This message comes on nagios dashboard when externals commands are disable. To enable external commands.Edit the nagios.cfg file and enable the value of check_external_commands parameter. Change the value from 0 to 1 In Debian or Ubuntu: vi /etc/nagios3/nagios.cfg…
How to install nagios server in Ubuntu 12.04 LTS In this tutorial we will learn how to install server in Ubuntu 12.04 LTS. Nagios is one the robust and very good monitoring server which is highly used in corporate network either it is Small business Unit or big corporate. It also comes with Open source…
When you try to ssh the another remote Linux/Unix machine , you might have encountered with the WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! . This message we have often seen when we work in Linux machines. In this post we have provided the Reason and Solution on this Warning. root@tuxworld:/tmp# ssh 10.10.0.16 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING:…
Long time ago one of my U.S system admin was very security conscious. He asked me to create id_rsa.pub key in server. I created the key with ssh-keygen -t rsa command. And send it him through encrypted email. Next day he wrote me ,what is the ssh key fingerprint ? First let’s have some introduction….
Useful 3 Pastebin links which I mostly use This time I would like to share some information about pastebin which I use.Just take a very good definition from wikipedia : “A pastebin is a type of web application where anyone can store text for a certain period of time. This type of website is mainly…
Introduction When you work on Java or any Java based project , you might need to set JAVA environment variables JAVA_HOME and PATH in Linux. After installing new java (jdk or jre) or latest Java you may have usually find that the version of java is not exactly the same which you have installed. It…
In this tutorial we will learn about,how to install own git server with ssh and http access by using gitolite and gitweb in CentOS.For user management in Git Server,we will use the Gitolite.For showing the repository list on web interface,we will use Gitweb. And Smart HTTP is configured in Apache, to access the Git server…
In this tutorial we will learn how to create own git server.This time I have selected Gitolite for git server and gitweb to display git repositories. Why Gitolite ? Answer: Easy to setup,have user management through command line,very less memory and cpu usage. Why Gitweb? Answer: To display repositories in web interface and view can…
In new server today created a authorized_keys file in /root/.ssh/ directory. After doing ssh first time got the error – Agent admitted failure to sign using the key For solving this issue use the command ssh-add in client machine ssh-add Given below are the outputs from terminal. The solution pretty much straight simple. sharad@mypc:~$ ssh…
How to see system load average in terminal with graphical representation Few days back we wrote on 4 commands to find loadaverage of system. tload is the command through which we can find the loadaverage of system whereas it will show the loadaverage in Terminal with graphical representation. For more details read manpage of tload….