by Farooq Ahmed | Oct 18, 2017 | RHEL / CentOS
There are instances wherein you want to generate random passwords for setting up credentials. There is a very simple random password generator in-built into Linux. Just run the below command. # cat /dev/urandom | tr -dc ‘a-zA-Z0-9’ | fold -w 24 | head -n24...
by Farooq Ahmed | Jun 8, 2017 | Red Hat IDM
When you come across this error “LDAP Error: Connect error: TLS error -8054:You are attempting to import a cert with the same issuer” enrolling a client to FreeIPA/IDM server, it means that the existing certificate does not match the one on the IDM server...
by Farooq Ahmed | Feb 5, 2017 | VMWare
Follow these simple steps to resize a Virtual machine disk (vmdk) and then extend the volume using LVM. Make sure that you have/make a backup before carrying out these steps. First go ahead and extend the vmdk from ESXi/vCenter. I increased the disk size from...
by Farooq Ahmed | Jan 5, 2017 | PNP4Nagios
When trying to get the custom time range for PNP4Nagios graphs, it might result in an error “application/models/data.php [664]:”. It can easily resolved by editing “system.php” in PNP4Nagios controllers folder. To start with first make a...
by Farooq Ahmed | Dec 30, 2016 | Puppet
It’s now possible to install both Puppet Master and Agent on the same host with different certs for each, to avoid future conflicts when managing master server with puppet. You need to have 2 seperate entries on puppet.conf, one in [master] and one in [agent] so...
