How to upgrade SOLR 4.10.4 to SOLR 6.1.0? Download solr-5.0.0 and start it. From the GUI  create all collections copy index data fr...

Manage you elasticsearch Cluster through KOPF 1. install KOPF. The kopf plugin provides a GUI for Elasticsearch. You can find out t...

While configuring the clients for the nagios monitor, we get these errors. This error means the nrpe daemon is communication with nagios se...

 Midnight Commander  Midnight Commander is a visual file manager, licensed under GNU General Public License. This text mode application t...

How to Set targets in RHEL/CentOS 7? Previous versions of RHEL, which were distributed with SysV init , implemented a predefined set o...

How to Install GNOME Desktop On RHEL/CentOS 7? 1. Configure the Repository or register to subscription-manager. 2. Install the GNO...

OSticket : Thank you Page is not Displaying? Solution : Checked the Admin Panel and Found that there is a SMTP error. Connection to ...

zabbix 3.2 -- Delaying  sending alert e-mails? Issue: Alerts are delayed from Zabbix. it was arround 30 mins late arriving to the Ad...

New zone record not getting published in bind? 1. Checked the general.log and found that zone file has a Ownership issue. zone exam...