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Monitoring Cisco ASA Firewall With Nagios Web Application

1. Overview Nagios performance monitoring application or a SNMP network monitoring tools and server monitoring tools can be used...

Reading and Understanding the exim main_log

Reading and Understanding the exim_mainlog​ At cPanel, we get a variety of tickets asking about different types of mail...

How to Fix Moodle error backup_controller_dbops_nonexisting

This error occurs when you duplicate an activity or import activities. I recently implemented...

How to fix Ceph error states “oldest is osd_failure(failed timeout osd.xx)

Hi, If your Ceph cluster encounters a slow/blocked operation it will log it and set the cluster health into...

Monitor site to site tunneling health for Cisco ASA using Zabbix

Requirement : - Zabbix server ( Zabbix 2.4 in this post)- Cisco ASA with tunnel site to site configured-...

List of Free E-Commerce

E-COMMERCE/SHOPPING CART: OpenCart (Download)PrestaShop (Download)Magento (Download)OS Commerce (Download)CubeCart (Download)TomatoCart (Download)Axis (Download)Avactis (Download)Quick.Cart (Download)AlegroCart (Download)Zen Cart (Download)Freeway (Download)phpShop (Download)PHP Point...

How to Backup view and events only in MariaDB/MySQL

As a part of a migration, We need to export MySQL events from a MariaDB 10.2 and import them to another MariaDB...

SaaS vs PaaS vs IaaS: What’s The Difference

The cloud is a hot topic for small businesses all the way to global enterprises, but remains a broad concept that covers...

How to Resize tmpfs on Linux

tmpfs is a temporary file system that stores data in virtual. It does not create an file or directory on your hard...

Proxmox 6.0 Bug, hung kernel and how to fix it.

We have been running Proxmox 6.0 in some servers and after a few weeks, they were having a hung issue. one-by-one all...

SSH Error Invalid Format – Ubuntu 18.04

This article is a troubleshoot documentation about problems with SSH Server on the Ubuntu Server 18.04 operating system.

How to Change the WordPress site URL using MySQL command line

In this case, We would like to share the common issue how to change the main URL in WordPress when you are...
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How To Import QCOW2 Image Into Proxmox

In this guide, we will see how to import QCOW2 into Proxmox hypervisor and how to create a virtual machine using the QCOW2 image...

Remove frozen emails from mail queue – Exim

Emails can build up for a variety of different reasons but mainly results from emails which were undelivered.  When...

Safe Reboot Of Linux Using Magic SysRq Key

If you are working on kernel development, or device drivers, or running a code that could cause a kernel panic, the SysRq...

How to set a MySQL database to read-only mode

When we need to set the database as read-only on the fly (such as rebuild MySQL replication purpose) and we will use...