check_memory unable to read output Nagios nrpe While setting up the nagios Monitoring system in my new network.I decided to use check_memory plugin. I downloaded the plugin from exchange.nagios.com Here below one is given link. check_mem_avail While working I got this error from check_memory plugin “NRPE : unable to read output” . After debugging I […]
Linux
Change default editor of crontab in Ubuntu
Change default editor of crontab in Ubuntu When you first time open the crontab with command crontab -e it will ask you to set the default editor. In this tutorial we will see how to set default editor of crontab as well as how to change it to other default editor. I usually work with […]
how to deny root ssh access in linux server
how to deny root ssh access in linux server For security point of view we generally restrict root direct ssh access in server.But keep in mind you also must have user who can access the server other than root. So before doing this practical ,check if you have access to server with other user or […]
send email after mysql backup through bash script in simple way
send email after mysql backup through bash script in simple way In Facebook group one of the user asked this question “how to send email after mysql backup through bash script”. If you know bash scripting a bit it is just a one liner. It can be write in more advanced form but here I […]
How to run django with nginx
In this tutorial we will learn how to configure nginx with django project in Ubuntu 12.04 LTS . Here in this scenario I have already putted the Django Project code in /opt and before this I installed django from its source code. Actually in this scenario the code was developed in staging machine and I […]
Allow wget and yum in iptable
Allow wget in iptable Today when I was trying to do wget from my server I found it did not allow me to do it. Then I check with yum command also and found the error message “Couldn’t resolve host ‘some.domainname.com'”. It seems the iptables rule in Server is not allowing to wget and yum. […]
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