Posts By: jonny

CLI RAID Disk Layout on Dell Servers

Newer iDRAC web interfaces show the physical and virtual disks on a PERC controller but for older servers with an old iDRAC use openmanage on the command-line. To view a list of the physical disks: omreport storage pdisk controller=0 To view a list of the virtual disks: omreport storage vdisk controller=0 To check which physical… Read more »

check_mk: Monitor Nginx Status

On the Check_mk web UI visit:WATO menu > Monitoring Agents In the list on check agents you should find the nginx_status. Clicking on it shows the code for the check. Copy that code to the client server. The location on web001 for the check (for me anyway) was: /usr/share/check-mk-agent/local/nginx_status Make sure it is executable. On… Read more »

check_mk: Add Custom Notes to Services

The scenario here is that I would like to add a ‘custom notes’ link to any services with the word ‘postfix’ in the name of the service. I started by visiting WATO and drilling down to a host and one of the services I was interested in adding notes to: Then scroll down and click… Read more »

check_mk: Customise Icon Visibility

By default check_mk places icons under a ‘hamburger’ icon as shown below. I wanted the ‘Custom Notes’ icon to be visible at all times rather than being located under the actions icon. To do that visit the ‘Global Settings’ menu item and under the ‘User Interface’ section find the option for ‘Builtin icon visibility’: Then… Read more »

Reboot Linux Server

On a server where normal reboot commands such as ‘shutdown -r now’ are not working and if you don’t have access to an iDrac or similar the following worked: echo 1 > /proc/sys/kernel/sysrq echo b > /proc/sysrq-trigger

Accessing iDRAC 6 with IE Compatibility Mode

Had difficulty accessing an old iDRAC 6 interface with a more recent release of a web browser. Some of the drac interface shows but you get 404 error messages. The solution was accessing it via the compatability mode on IE: Then add the address of the iDRAC interface:

Bash to Python – Playing with CSV

In the past I have been too willing to use bash scripts for grepping and awking CSV files. The code snippet below is a starter for doing similar with python and while far from perfect, demonstrates calling another system command and manipulating strings:

Laravel Passport Oauth

With a basic CRUD Laravel app containing API routes I wanted to protect the API behind Oauth. So I followed the instructions on the Laravel documentation and a great video by Andre Madarang on Youtube. After following the steps of requiring passport in composer, migrating and adding the routes I was testing the oauth endpoints… Read more »