Earlbert Mercado

what is mesh wi-fi and how does it work?

Mesh WiFi is a whole home WiFi system built to eliminate dead zones and to provide uninterrupted WiFi throughout your home. Mesh routers enable devices in your network to have faster speeds, greater coverage, and a more reliable connection. While traditional routers broadcast WiFi from a single point, mesh WiFi systems have multiple access points. …

what is mesh wi-fi and how does it work? Read More »

7 Useful Windows Networking Commands

1. Ping Command The ping command is one of the most often used networking utilities for detecting devices on a network and for troubleshooting network problems. When you ping a device you send that device a short message, which it then sends back (the echo). The general format is ping hostname or ping IPaddress. Example ping www.google.com 2. ipconfig …

7 Useful Windows Networking Commands Read More »

How to change directory permissions in Linux

To change directory permissions in Linux, use the following: chmod +rwx filename to add permissions. chmod -rwx directoryname to remove permissions. chmod +x filename to allow executable permissions. chmod -wx filename to take out write and executable permissions. Note that “r” is for read, “w” is for write, and “x” is for execute.  This only changes the permissions for …

How to change directory permissions in Linux Read More »

How to Open or Close a Port in Windows 10 Firewall

1. Open the Windows Firewall app in Windows 10 Press the Start button and type “Windows Defender Firewall”. Click the top result to open it. 2. Open advanced iFrewall settings In the left side-bar of the Firewall, click the “Advanced settings” header and press “Yes” to any admin prompts. 3. Click ‘Inbound Rules’ in the sidebar 4. Press ‘New Rule…’ in the …

How to Open or Close a Port in Windows 10 Firewall Read More »

How to configure postfix to use Gmail SMTP on Ubuntu

If you do not have postfix installed before, postfix configuration wizard will ask you some questions. Just select your server as Internet Site and for FQDN use something like mail.example.com Then open your postfix config file: and following lines to it: You might have noticed that we haven’t specified our Gmail username and password in above lines. They …

How to configure postfix to use Gmail SMTP on Ubuntu Read More »

How to Create an App Password for Gmail

If you use 2-Step-Verification and are seeing a “password incorrect” error when trying to access your Google Account, an App password may solve the problem. An App Password is a 16-digit passcode that gives an app or device restricted access to your Google Account without having to divulge your personal password and complete access to your Google …

How to Create an App Password for Gmail Read More »