How to setup cloudflare for your domain!

Most of the people know cloudflare is a tool to speed up their site and protect them from DDOS attacks, its true. How ever we can easily manage our DNS through cloudflare as well. Let see how to setup cloudflare for your domain. Step 1: Register on their site Note : If you already have […]
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5 Steps to secure newly installed web server

Linux is most popular operating system to be used as web server. Because it servers the purpose very well because it is light weight, secure and can serve a lot of user requests easily. But still their is a room for improvement in case of  security since web server is a public service and their […]
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How to setup NAT on Proxmox

Proxmox uses bridge networking to provide Internet access to virtual machines, but in a bridge networking you need a public IP for each machine. If you have limited IPs you can use NAT to access Internet on your machines. How ever it is preferable to have a static public IP if you are running public […]
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Packet sniffing using Snort

I’ve explained in my last tutorial that how you can install snort on Ubuntu, if you have not installed it yet you can click here. In my article where I explained how to install snort, I mentioned that snort have two running modes,  today we will see how we can do packet sniffing using snort. […]
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How to install snort intrusion detection system on Ubuntu!

Snort is a signature based intrusion detection system, it either drop or accept the packets coming on a certain interface depending on the rules you have used. In a signature based intrusion detection system packets headers and their payloads are matched against specific predefined rules/strings to see if they contain a malicious content. Snort can […]
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Use rsync and SSHFS to create incremental backups!

Good system administrator always keeps their critical data backed up, their are various ways you can backup your data, but some times it can be a hectic job, how ever we can use rsync and sshfs to create incremental backups (and automate the backup using cron jobs). What is SSHFS? SSHFS can mount a remote […]
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How to install/un-install packages using yum and apt-get in Linux

Installing packages on linux was a biggest mystery to me when I started learning unix/linux, so I thought to write a complete guide on how to install/un-install packages using yum and apt-get in Linux. In Linux softwares or applications that execute on machine is called packages.  We will go through: RPM (Red hat package manager). […]
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