Server Administration

If you want to send or receive an email, you should have a mail server capable of sending and receiving emails across the Internet. In this post, we will discuss Linux mail server and how the SMTP (Simple Mail Transfer Protocol) works as well as other mail-related protocols, like Post Office Protocol (POP) and Internet […]

Linux proxy server or proxy server generally is a server that caches the internet. The client connects to the proxy server with a request, the proxy server will connect to the internet or another caching server and cache the pages retrieved, then return the cached pages to the client. A proxy server has many advantages. […]

Linux Samba server is one of the powerful servers that helps you to share files and printers with Windows-based PCs and other operating systems, it’s an open-source implementation of the Server Message Block/Common Internet File System (SMB/CIFS) protocols.   How SMB Works To understand Linux/Samba/Windows relationship, you need to understand the relationships of the operating […]

The Linux virtual file system or virtual file system generally is a layer that sits on the top of your actual file system which allows the user to access different types of file systems, you can think of virtual file system as an interface between the kernel and the actual file system. That means you […]

In this post, we will talk about Linux web server and how to install it and configure it to serve you content to others. A web server is a system that manipulates requests via HTTP protocol, you request a file from the server and it responds with the requested file, which might give you an […]

File Transfer Protocol (FTP) is a network protocol used to transfer files between computers, one act as a client, the other act as a server. In this post, we will talk about the FTP server in Linux systems, specifically Very Secure FTP Daemon (vsftpd). The vsftpd program is a very popular FTP server that is […]

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 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 or […]

In this post, we will talk about Linux Syslog Server and how to manage your logs, since Syslog format being the closest thing to the universal logging standard that exists. 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 […]

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 file, […]

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 […]