The DNS (Domain Name System) is a naming system for computers, the service that does that is called DNS server which translates an IP address to a human readable address. This process is the backbone of the internet and a very important service in your server, so from that point, we will discuss DNS server […]
In this post, we will talk about Linux Syslog Server and how to manage your logs. If you want your system to be secured and hardened, you have to know what’s going on in that system, you can do that using logs. With logs, you can diagnose problems and determine the health of your system […]
Two days ago, one of the website visitors was searching on the website for LDAP and found nothing, that drives me to make a post about LDAP server, so we fill the gaps and bring the loved content to the visitors. What is LDAP? We know that Linux keeps registered users on /etc/passwd […]
In the previous post, we talked about Linux iptables firewall, and some people asked about authentication. Today we will talk about the powerful framework in Linux used for authentication which is Linux-PAM. PAM or Pluggable Authentication Modules are the management layer that sits between Linux applications and the Linux native authentication system. Linux-PAM Benefit There […]
In the previous post, we talked about how to Secure Linux Server Using Hardening Best Practices, some people asked me about the firewall section which was a brief introduction about iptables firewall. Today we will discuss in detail the Linux iptables firewall and how to secure your server traffic using that awesome firewall. […]
In the previous post we talked about some Linux security tricks and as I said, we can’t cover everything about Linux hardening in one post, but we are exploring some tricks to secure Linux server instead of searching for ready Linux hardening scripts to do the job without understanding what’s going on, However, the checklist […]
In the previous post, we talked about Linux network commands and we saw some useful examples used to troubleshoot your network, today we will talk about some Linux security commands that you will need to harden your system. New vulnerabilities are discovered a lot these days, exploits are immediately built on those vulnerabilities after being […]
In the previous post, we talked about Linux process management. In this post, we will talk about Linux network commands and how to troubleshoot your network. Once you have confirmed that the physical network is working, the next step is to troubleshoot your network and here we come to our topic which is Linux network […]
In server administration, it is very important to understand how the running processes work in detail, from high load to slow response time processes. When your server becomes so slow or fails to respond, you should understand the process management or Linux process management. When it is the time to kill a process or renice […]
The Linux NIS server (Network Information Service) is a server used for sharing critical data stored in flat files between systems on a network, it is often ideal to have a common repository (such as NIS) for storing user and group information that is traditionally stored in flat files like /etc/passwd. So what is the […]
