Nginx – Password Protect Web Directories

Managers of web projects often need to protect their work one way or another. Often people ask how to password protect their website while it is still in development. On an Apache web server, it’s possible to password protect a directory using .htaccess and .htpasswd files. However, .htaccess files are not supported on Nginx. Read More …

Linux – scp transfer files (passwordless) between systems

SSH (Secure SHELL) is a network protocol that is used to login into remote servers for execution of commands and programs. It is also used to transfer files from one computer to another computer over the network using secure copy (SCP) Protocol. Let’s see how to automate, passwordless, using Public/Private keys, file transfers between systems. Read More …

CentOS / RHEL – Managing Networking Service

One of the most common activities on a Linux system is, usually, modify some networking parameters to adapt the system to the actual network; so how can we restart networking service using command line options without restarting the whole system? How can I start / stop and restart networking service on a CentOS/RHEL 7 based system? Read More …

Segment a LAN into VLANs

VLANs or virtual LANs, are a great tool to segment LANs without having to build a complex and costly network infrastructure. Even with only a unique switch you can build a network with multiple broadcast domains. Read More …

DNS Poisoning

Send Us a Sign! (Contact Us!) Show More Info This article has total words. (Including header) DNS cache poisoning, also Read More …

Previous authentication no longer valid on WiFi – Cisco Aironet 1240AG

During the usage of a Cisco Aironet 1240AG there could happen that in Event Log of the access point we Read More …