HTG Asks: VPN Setup, PC Power & Digital Comics - How-To Geek

Reader Mailbag: Tech Questions Answered

Each week, we address the most pertinent technical inquiries received from our readership. This installment focuses on VPN creation, the implications of continuous PC operation, and methods for enjoying comics digitally.

Creating a VPN

A frequently asked question concerns the establishment of a VPN (Virtual Private Network). Setting up a VPN involves configuring a secure connection to another network, masking your IP address and encrypting your internet traffic.

There are several approaches to this. You can utilize a commercial VPN service, which offers ease of use and a wide range of server locations. Alternatively, you can build your own VPN server, providing greater control but requiring more technical expertise.

Running Your PC 24/7

Another common inquiry revolves around the practice of leaving a personal computer powered on continuously. The decision to run a PC 24/7 depends on your specific needs and tolerance for potential drawbacks.

While constant operation allows for immediate access to files and services, it also increases energy consumption and potentially shortens the lifespan of hardware components. Consider the benefits against these factors before adopting this practice.

Reading Comics on Your Computer

Many readers have inquired about the best ways to read comic books on a computer. Several options are available, ranging from dedicated comic book reader applications to simply viewing image files.

Popular software choices include CBR (Comic Book Reader) and similar programs designed to handle compressed comic book formats. These applications often offer features like page turning, zoom, and library management.

Alternatively, standard image viewers can display individual comic book pages, though they may lack the specialized features of dedicated readers. The optimal method depends on your preferred reading experience and the format of your comic book files.

Establishing a VPN for Remote File Connectivity

A recent how-to guide concerning the configuration of an SSH server for secure remote browsing has prompted a question regarding the implementation of a VPN for comprehensive remote file access.

The core need for a VPN is understood, but the practical steps for its setup remain unclear.

Understanding the VPN Advantage

While SSH excels at creating secure tunnels for specific applications, a VPN provides broader, secure access to your entire home network.

This makes it ideal for accessing all files and resources remotely.

VPN Setup Guides Based on Your Router Firmware

The appropriate setup procedure will depend on the firmware currently running on your router.

• Tomato Firmware: For routers utilizing Tomato firmware, a detailed guide for configuring OpenVPN is available.
• DD-WRT Firmware: If your router operates on DD-WRT firmware, a dedicated tutorial is designed to assist you.
• Debian Linux: Linux users can leverage a specific VPN tutorial focused on establishing a PPTP VPN server on Debian Linux.

These resources will provide the necessary steps to initiate secure remote access to your files.

Successfully implementing one of these guides will enable secure and convenient remote file connectivity.

Should You Leave Your PC Running 24/7 or Shut it Down Each Night?

A common debate exists regarding whether it’s preferable to power down a computer after daily use or allow it to run continuously. Differing viewpoints are prevalent, leading to uncertainty about the optimal approach.

The Core of the Debate

One perspective suggests that constant operation minimizes stress on the system. The argument centers on the idea that the startup process – involving drive activation and component power-up – constitutes the most demanding phase for the hardware. Conversely, another viewpoint emphasizes the energy waste associated with around-the-clock computer usage.

Both arguments hold merit, yet one proves more pragmatic. While repeated shutdowns and startups do impose a degree of stress on hardware components, the impact is often overstated. The hard drive is generally considered the most susceptible component to premature failure.

Cost Considerations

Currently, a large capacity hard drive (750GB-1TB) can be acquired for approximately $50. This cost should be considered when evaluating the expenses of continuous operation.

Conversely, powering down a computer during periods of inactivity results in significant cost savings. A typical desktop computer may consume between 300-400 watts while operating.

If the computer is used for 12 hours daily and switched off for the remaining 12, substantial energy savings are realized. These savings, potentially amounting to hundreds of dollars annually, easily cover the cost of replacing components that might experience wear and tear. Modern computers are designed for frequent power cycles.

Situations Where 24/7 Operation is Beneficial

There are specific scenarios where leaving a PC running continuously is advantageous. These include:

• Distributed Computing: If participating in projects like protein folding or gene sequencing, uninterrupted operation is essential.
• Remote Backups: Utilizing a remote backup service with large data volumes makes off-peak hours ideal for data transfer.
• Workplace Policies: For work computers, it’s crucial to consult the IT department to ensure that overnight updates and backups aren't scheduled during usage hours.

Important Note: Always verify company policies regarding computer shutdown procedures before making a decision about your work computer.

Enjoying Comics on Your Desktop

Dear How-To Geek,

I’ve recently acquired some digital comic books, but I’m unsure how to open them. They are saved in the CBZ file format. Could you advise me on how to view these files?

Sincerely,

Comic Confused in Connecticut

Dear Comic Confused,

There are a couple of approaches you can take. Initially, understand that a CBZ file is essentially an archive format. It’s designed to simplify the process of loading comic book files within specialized viewing applications.

In reality, a CBZ file is simply a ZIP file that has been renamed. You can easily access the contained images by changing the file extension to ZIP and then extracting the contents.

Utilizing a Dedicated Comic Book Reader

However, before resorting to extraction, it’s worth considering the benefits of a dedicated comic book reader. These applications typically offer a range of features designed to enhance the reading experience.

These features can include panel viewing, zoom capabilities, and optimized page turning. They provide a more immersive and enjoyable way to consume your comics.

For further details on how CBZ files are structured and a review of available comic book readers, you might find our guide to reading web comics helpful.

Do you have a challenging tech issue? Send your questions to ask@howtogeek.com, and we will endeavor to provide a solution.