How to forcefully send mail from mailq in sendmail MTA Sendmail is one of the open source MTA (Mail Transfer Agent) which is widely use in linux operating system. Many times because of high load average of Mail Server and also due to high no. of deffered emails in mail queue, many emails are not […]
Linux
How to change the frontend of Nagios with VShell in Ubuntu and Debian
How to change the frontend of Nagios with VShell in Ubuntu and Debian Here in this tutorial we will learn How to install Nagios V Shell to change the frontend. This is continue of my last post on Installing Nagios in Ubuntu. Kindly read the post. To install Nagios V Shell follow these steps : […]
find command to search keyword in files recursively in linux
find command to search keyword in files recursively in linux Find command is one of the system command which is useful to search files and directory. It has many used and you can modify your search by using -exec flag. Here I am using exec with grep command. By below given command you can find […]
make command not found in linux CentOS Red Hat ubuntu Debian
bash: make: command not found Make command is generally used while installing the package from source code. make utility helps to maintain groups of programs There are four types of lines in a makefile: file dependency specifications, shell commands, variable assignments, and comments. In general, lines can be continued from one line to the next […]
How to use grep command to get fixed pattern or exact keyword
How to use grep command to get fixed pattern or exact keyword In this post this is a small trick about How to use grep command to get fixed pattern or exact keyword in files. grep command is useful in searching the keyword in files. Without using any flag the grep command will show the […]
How to find when Operating system was installed in linux CentOS and Red Hat
How to find when Operating system was installed in linux CentOS and Red Hat This is a short video to know how you can find out on which date the linux was installed. It is applicable to Red Hat based linux distro. Step 1 : First find out the basesystem rpm. rpm -qa|grep basesystem Step […]
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