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Netstat Cheatsheet

To view the total number of connections to a port, run the following command in ssh netstat -tuna |...

Hypervisor KVM

Have you ever wondered how a cloud works? It is the most fast-growing IT-trend which attracts billions...

How To Backup Mailbox Daily, Weekly and Monthly

For backup mailbox, i am usually using zmmailbox command who has been provided by Zimbra. The command...

Installing PHP 7 on CentOS 6

Installing PHP 7 on CentOS 6 1. To install latest PHP 7, you need to...

How To Find Folder or File Older Than x Days and Move Them To Other Directory or Path

– Create folder /var/www/old_www-7days/ as destination path – Run find and move (in this case older than 7 days) to old_www-7days

How to Install JAVA 8 on Ubuntu 18.04/16.04 using PPA

There are two standard types of installation available are JDK and JRE. JDK (Java Development Kit) provides...
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Proxmox 5x “e1000 driver hang” fix

Problem: I started to experience proxmox servers going up and down, an intermittent response on the network (SSH),...

How To Fix “Device eth0 does not seem to be present, delaying initialization” Error on Centos

check network: # ifconfig lo        Link encap:Local Loopback           inet addr:127.0.0.1  Mask:255.0.0.0           inet6 addr: ::1/128 Scope:Host           UP...

Create Blocking Bad Bots Through Apache in WHM/cPanel

we see a lot of traffic from 'bad robots', these bots cause problems such as high server load, server instability and can...

Tools for load-testing HTTP servers

Knowing how much traffic your web server can handle when under stress is essential for planning future grow of your website or...