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CompTIA A+ Certification Core 2 (220-1102) - Virtual Private Networks (VPNs)
In this video, Author shows how Virtual Private Networks (VPNs) work and why people use VPN connections. He discusses the types of protocols and clients that make this work today and walks through a generic VPN setup. This clip is from...
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CompTIA A+ Certification Core 2 (220-1102) - Proxy Servers
In this video, the author describes how proxy servers work to block certain websites and filter outgoing or incoming content. The video shows how to set up a browser to connect to a proxy server. This clip is from the chapter "The...
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CompTIA A+ Certification Core 2 (220-1102) - File Transfer Protocol (FTP)
In this video, the author tackles one of the earliest and most common protocols for moving files, File Transfer Protocol (FTP). He explores how FTP works, including passive mode and active mode, and port triggering. This clip is from the...
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CompTIA A+ Certification Core 2 (220-1102) - The World Wide Web
The web puts a graphical face on the Internet. You access it via a web browser, connecting with HTTP (insecure) or HTTPS (secure). Certificates give you a resource for whether a website can be trusted. This clip is from the chapter "The...
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CompTIA A+ Certification Core 2 (220-1102) - Remote Desktop Connections
The Remote Desktop Protocol (RDP) enables you to connect to a remote Windows system and control it using the graphical user interface. Virtual Network Computing (VNC) enables you to connect to all sorts of computers, including Windows,...
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CompTIA A+ Certification Core 2 (220-1102) - Telnet and SSH
The Telnet and SSH protocols enable techs to access and control hosts remotely using the command-line interface in Windows. Telnet offers no security. SSH connections are encrypted for better security. This clip is from the chapter "The...
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CompTIA A+ Certification Core 2 (220-1102) - Troubleshooting Wireless Connections
There are few worse feelings than a wireless connection that just doesn't…connect. In situations like this, good tech will have the right tools and skills to diagnose and repair the issue. This clip is from the chapter "Wireless...
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CompTIA A+ Certification Core 2 (220-1102) - Enterprise Wireless
There's a big difference between the 80 2.11 networks in your home and small office vs. 802.11 in larger organizations such as businesses, schools, and government offices. Multiple SSIDS, advanced technologies, and more aggressive...
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CompTIA A+ Certification Core 2 (220-1102) - Connecting to a Wi-Fi Network
The best 80 2.11 network is useless unless your users can connect to it. Smartphones, desktops, IoT devices, and other networked gizmos need to be individually configured to access your 802.11 networks. This clip is from the chapter...
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CompTIA A+ Certification Core 2 (220-1102) - Wireless Encryption
Everything on an unencrypted (open) wireless network is easily intercepted by anyone with the right capture tools. Over the years, 80 2.11 has developed three different encryption standards, each with its own idiosyncrasies, strengths,...
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CompTIA A+ Certification Core 2 (220-1102) - Basic WAP Setup
The standard wireless access point (WAP) doesn't just work out of the box. It's important to understand how to perform a basic setup for a WAP to make sure it operates properly in your network. This clip is from the chapter "Wireless...
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CompTIA A+ Certification Core 2 (220-1102) - Virtual LANs (VLANs)
Virtual LANs (VLANs) are common features built into almost all switches. VLANs provide superb control of your LAN but have their own quirks that a good tech understands. This clip is from the chapter "Local Area Networking" of the series...
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CompTIA A+ Certification Core 2 (220-1102) - Advanced Router Configuration
Even the most basic router has settings beyond the basic setup. Protocols such as Quality of Service (QoS), Universal Plug and Play (UPnP), and Simple Network Management Protocol (SNMP) give extra features to enhance the capabilities of...
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CompTIA A+ Certification Core 2 (220-1102) - Port Forwarding
NAT is a handy tool but comes with a huge drawback: no servers behind the firewall are accessible to the outside world. Port forwarding allows opening specific ports on your NAT-enabled router to provide access to servers behind it. This...
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CompTIA A+ Certification Core 2 (220-1102) - Windows Firewall
Like all operating systems, Windows comes with a built-in software firewall. Unlike the firewall on your router, this firewall only protects a single system. It's important for techs – and the users they support – to understand how to...
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CompTIA A+ Certification Core 2 (220-1102) - Firewall Configuration
Setting up a hardware firewall is an obvious first step to making sure your network is protected. Even the most basic router has several different types of firewall settings – without proper configuration, you will either leave your...
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CompTIA A+ Certification Core 2 (220-1102) - Basic Router Configuration
All routers share some basic configuration steps every tech must know. From router passwords to LAN IDs, this is the place to learn about these settings. This clip is from the chapter "Local Area Networking" of the series "CompTIA A+...
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CompTIA A+ Certification Core 2 (220-1102) - Routers
The CompTIA A+ exams challenge test takers to perform many configurations of a typical home router. But what does a router do for a SOHO network? This clip is from the chapter "Local Area Networking" of the series "CompTIA A+...
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CompTIA A+ Certification Core 2 (220-1102) - The net Command
The Windows net command has so many features that it deserves its own video. We use the net command for everything—from querying the network to accessing shares. This clip is from the chapter "Local Area Networking" of the series...
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CompTIA A+ Certification Core 2 (220-1102) - Windows Sharing with macOS and Linux
Both macOS and Linux systems know how to use Windows naming functions to connect using Workgroups and Domains and share resources using Samba. The trick is to understand how they do it and to configure them to work with an existing...
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CompTIA A+ Certification Core 2 (220-1102) - Working with Active Directory
More advanced Windows networks use Active Directory Domains instead of Workgroups. These Domains, especially Microsoft's Active Directory-enabled Domains, provide powerful services for larger networks. This clip is from the chapter...
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CompTIA A+ Certification Core 2 (220-1102) - Working with Workgroups
Microsoft developed the concept of Workgroups for small networks to work with their naming system. Workgroups are simple and provide no security, but they're a part of every small Windows network. This clip is from the chapter "Local...
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CompTIA A+ Certification Core 2 (220-1102) - Windows Naming
Microsoft introduced a series of naming protocols, some of which predate the Internet. Interestingly, these protocols (or at least their modern versions) are still alive and well not only on Windows systems but on Linux and macOS systems...
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CompTIA A+ Certification Core 2 (220-1102) - Working with DNS
When a user complains the Internet is down, what's often happening is that DNS isn't working. There are a few simple tools and procedures to diagnose and repair DNS problems. This clip is from the chapter "Local Area Networking" of the...