Eric Geier

Author Archives: Eric Geier

8 free Wi-Fi stumbling and surveying tools for Windows and Mac

There is enterprise-level software for surveying Wi-Fi networks, but even in large wireless networks, simple freeware tools are handy for a quick peek at the airwaves during design, deployment or troubleshooting.Here is a look at eight free tools – some for Windows and some for Mac OS X – that provide basic details about nearby Wi-Fi signals: SSIDs, signal strength, channels, MAC addresses and security status. Some can even reveal “hidden” or non-broadcasted SSIDs, display the noise levels, or display statistics on successful and failed packets of your wireless connection. One of them includes Wi-Fi password-cracking tools that are useful for educational or penetration testing purposes.To read this article in full or to leave a comment, please click here

8 free Wi-Fi stumbling and surveying tools

Stumbling and surveyingHere are 9 tools that provide important details on known and unknown aspects of your Wi-Fi network. Each of these tools gives you the basic wireless details: SSIDs, signal strength, channels, MAC addresses and security status. Some can even reveal “hidden” or non-broadcasted SSIDs, display the noise levels, or display statistics on successful and failed packets of your wireless connection. Two of the tools include Wi-Fi password cracking tools as well, useful for educational or penetration testing purposes.To read this article in full or to leave a comment, please click here

5 Ways to Secure Wi-Fi Networks

Wi-Fi is one entry-point hackers can use to get into your network without setting foot inside your building because wireless is much more open to eavesdroppers than wired networks, which means you have to be more diligent about security.But there’s a lot more to Wi-Fi security than just setting a simple password. Investing time in learning about and applying enhanced security measures can go a long way toward better protecting your network. Here are six tips to betters secure your Wi-Fi network.Use an inconspicuous network name (SSID) The service set identifier (SSID) is one of the most basic Wi-Fi network settings. Though it doesn’t seem like the network name could compromise security, it certainly can. Using a too common of a SSID, like “wireless” or the vendor’s default name, can make it easier for someone to crack the personal mode of WPA or WPA2 security. This is because the encryption algorithm incorporates the SSID, and password cracking dictionaries used by hackers are preloaded with common and default SSIDs. Using one of those just makes the hacker’s job easier.To read this article in full, please click here

5 Ways to Secure Wi-Fi Networks

Wi-Fi is one entry-point hackers can use to get into your network without setting foot inside your building because wireless is much more open to eavesdroppers than wired networks, which means you have to be more diligent about security.But there’s a lot more to Wi-Fi security than just setting a simple password. Investing time in learning about and applying enhanced security measures can go a long way toward better protecting your network. Here are six tips to betters secure your Wi-Fi network.Use an inconspicuous network name (SSID) The service set identifier (SSID) is one of the most basic Wi-Fi network settings. Though it doesn’t seem like the network name could compromise security, it certainly can. Using a too common of a SSID, like “wireless” or the vendor’s default name, can make it easier for someone to crack the personal mode of WPA or WPA2 security. This is because the encryption algorithm incorporates the SSID, and password cracking dictionaries used by hackers are preloaded with common and default SSIDs. Using one of those just makes the hacker’s job easier.To read this article in full or to leave a comment, please click here

5 Ways to Secure Wi-Fi Networks

Wi-Fi is one entry-point hackers can use to get into your network without setting foot inside your building because wireless is much more open to eavesdroppers than wired networks, which means you have to be more diligent about security.But there’s a lot more to Wi-Fi security than just setting a simple password. Investing time in learning about and applying enhanced security measures can go a long way toward better protecting your network. Here are six tips to betters secure your Wi-Fi network.Use an inconspicuous network name (SSID) The service set identifier (SSID) is one of the most basic Wi-Fi network settings. Though it doesn’t seem like the network name could compromise security, it certainly can. Using a too common of a SSID, like “wireless” or the vendor’s default name, can make it easier for someone to crack the personal mode of WPA or WPA2 security. This is because the encryption algorithm incorporates the SSID, and password cracking dictionaries used by hackers are preloaded with common and default SSIDs. Using one of those just makes the hacker’s job easier.To read this article in full or to leave a comment, please click here

5 Wi-Fi analyzer and survey apps for Android

Wi-Fi networks have many variables and points of frustration. Different types of walls, materials and objects can impact the Wi-Fi signal in varying ways. Visualizing how the signals move about the area is difficult without the right tools. A simple Wi-Fi stumbler is great for quickly checking signal levels, but a map-based surveying tool helps you visualize the coverage, interference and performance much more easily. They allow you to load your floor plan map, walk the building to take measurements and then give you heatmaps of the signals and other data.Most Windows-based Wi-Fi surveying tools offer more features and functionality than Android-based tools provide, such as detecting noise levels and providing more heatmap visualizations. However, if you don’t require all the bells and whistles, using an app on an Android-based smartphone or tablet can lighten your load. (And in case you’re wondering why we're not discussing iOS apps, it’s because Apple won’t allow developers access to the Wi-Fi data, thus there can’t be any legit Wi-Fi surveying apps without jailbreaking the device.)To read this article in full or to leave a comment, please click here

How to rescue your PC from ransomware

With  nasty malware like Locky making the rounds—encrypting its victims’ files, and then refusing to unlock them unless you pay up—ransomware is a serious headache. But not all ransomware is so difficult.You can remove many ransomware viruses without losing your files, but with some variants that isn’t the case. In the past I’ve discussed general steps for removing malware and viruses, but you need to apply some specific tips and tricks for ransomware. The process varies and depends on the type of invader. Some procedures involve a simple virus scan, while others require offline scans and advanced recovery of your files. I categorize ransomware into three varieties: scareware, lock-screen viruses, and the really nasty stuff.To read this article in full or to leave a comment, please click here

How to rescue your PC from ransomware

With  nasty malware like Locky making the rounds—encrypting its victims’ files, and then refusing to unlock them unless you pay up—ransomware is a serious headache. But not all ransomware is so difficult.You can remove many ransomware viruses without losing your files, but with some variants that isn’t the case. In the past I’ve discussed general steps for removing malware and viruses, but you need to apply some specific tips and tricks for ransomware. The process varies and depends on the type of invader. Some procedures involve a simple virus scan, while others require offline scans and advanced recovery of your files. I categorize ransomware into three varieties: scareware, lock-screen viruses, and the really nasty stuff.To read this article in full or to leave a comment, please click here

Review: Manage desktops remotely with these 5 tools

Remote monitoring and management (RMM) can be a great way to keep tabs on workstations, servers, and other IT infrastructure and also automate some maintenance and remediation tasks. This can help save time and resources in the IT department.To read this article in full or to leave a comment, please click here(Insider Story)

How to identify and resolve double-NAT problems

The digital world is all about IP (internet protocol) addresses. Every device needs an IP in order to communicate on the internet or within a private network. Given there’s not enough public IP addresses out there for every internet-connected device (at least with IPv4), this little thing called NAT becomes extremely important. It stands for network address translation (NAT) and is a function provided by routers to enable multiple devices to access the internet via a single public IP address.Behind each public IP, there can be hundreds of devices with their own private IP addresses, thanks to NAT. And almost all equipment that provides the NAT function includes a firewall to protect the private IPs and devices from public IPs and devices on the internet. Other network services are also typically offered, like DHCP (dynamic host control protocol) to give out the private IP addresses to devices that connect to the local network.To read this article in full or to leave a comment, please click here

How to identify and resolve double-NAT problems

The digital world is all about IP (internet protocol) addresses. Every device needs an IP in order to communicate on the internet or within a private network. Given there’s not enough public IP addresses out there for every internet-connected device (at least with IPv4), this little thing called NAT becomes extremely important. It stands for network address translation (NAT) and is a function provided by routers to enable multiple devices to access the internet via a single public IP address.Behind each public IP, there can be hundreds of devices with their own private IP addresses, thanks to NAT. And almost all equipment that provides the NAT function includes a firewall to protect the private IPs and devices from public IPs and devices on the internet. Other network services are also typically offered, like DHCP (dynamic host control protocol) to give out the private IP addresses to devices that connect to the local network.To read this article in full or to leave a comment, please click here

7 Wi-Fi vulnerabilities beyond weak passwords

To keep private Wi-Fi networks secure, encryption is a must-have -- and using strong passwords or passphrases is necessary to prevent the encryption from being cracked. But don’t stop there! Many other settings, features and situations can make your Wi-Fi network as much or even more insecure as when you use a weak password. Make sure you’re not leaving your network vulnerable by doing any of the following.1. Using a default SSID or password Your Wi-Fi network’s name, called the service set identifier (SSID), can make your network less secure. If you leave the default SSID for your router or wireless access point (AP), such as linksys or dlink, it can increase the chances of someone successfully cracking the Wi-Fi password. This is because dictionary-based cracking depends upon the SSID, and a default or common SSID makes it a bit easier. So do not use any default SSID; instead, carefully choose your own.To read this article in full or to leave a comment, please click here(Insider Story)

7 Wi-Fi vulnerabilities beyond weak passwords

To keep private Wi-Fi networks secure, encryption is a must-have -- and using strong passwords or passphrases is necessary to prevent the encryption from being cracked. But don’t stop there! Many other settings, features and situations can make your Wi-Fi network as much or even more insecure as when you use a weak password. Make sure you’re not leaving your network vulnerable by doing any of the following.To read this article in full or to leave a comment, please click here(Insider Story)

7 Wi-Fi vulnerabilities beyond weak passwords

To keep private Wi-Fi networks secure, encryption is a must-have -- and using strong passwords or passphrases is necessary to prevent the encryption from being cracked. But don’t stop there! Many other settings, features and situations can make your Wi-Fi network as much or even more insecure as when you use a weak password. Make sure you’re not leaving your network vulnerable by doing any of the following.To read this article in full or to leave a comment, please click here(Insider Story)

Four lesser-known Wi-Fi security threats and how to defend against them

It’s common knowledge that the best way to protect your home Wi-Fi network is by using a strong password. This will keep uninvited guests away and protect your network so eavesdroppers can’t intercept your communications. And we’ve known for more than a decade now that the old Wired Equivalent Privacy (WEP) is so insecure that cracking it is practically child’s play.ALSO ON NETWORK WORLD: 9 tips for speeding up your business Wi-Fi Once you’ve protected your network with Wi-Fi Protected Access 2 (WPA2), here are four other vulnerability scenarios you should guard against.To read this article in full or to leave a comment, please click here

Four lesser-known Wi-Fi security threats and how to defend against them

It’s common knowledge that the best way to protect your home Wi-Fi network is by using a strong password. This will keep uninvited guests away and protect your network so eavesdroppers can’t intercept your communications. And we’ve known for more than a decade now that the old Wired Equivalent Privacy (WEP) is so insecure that cracking it is practically child’s play.ALSO ON NETWORK WORLD: 9 tips for speeding up your business Wi-Fi Once you’ve protected your network with Wi-Fi Protected Access 2 (WPA2), here are four other vulnerability scenarios you should guard against.To read this article in full or to leave a comment, please click here

Four lesser-known Wi-Fi security threats and how to defend against them

It’s common knowledge that the best way to protect your home Wi-Fi network is by using a strong password. This will keep uninvited guests away and protect your network so eavesdroppers can’t intercept your communications. And we’ve known for more than a decade now that the old Wired Equivalent Privacy (WEP) is so insecure that cracking it is practically child’s play.ALSO ON NETWORK WORLD: 9 tips for speeding up your business Wi-Fi Once you’ve protected your network with Wi-Fi Protected Access 2 (WPA2), here are four other vulnerability scenarios you should guard against.To read this article in full or to leave a comment, please click here

8 tech dangers every novice can avoid with these tips

Tech novices need our help. They tend to run into the same pitfalls, and some of them make the same mistakes over and over. A novice friend may have cost you hours of informal tech support. Here's something you can show them before that next desperate phone call. To the novices out there: Get smarter by reading this.To read this article in full or to leave a comment, please click here(Insider Story)

Windows 10 tips and tricks for Wi-Fi and networking

There have been many changes in Windows 10, especially since the first anniversary update last August, officially called version 1607. Here are some of the most important changes related to the Wi-Fi and networking aspects of Windows 10, along with some tips and tricks on using the new and improved features and navigating the revamped GUI.To read this article in full or to leave a comment, please click here(Insider Story)

REVIEW: Early Wave 2 Wi-Fi access points show promise

There’s a lot to like about Wave 2 802.11ac products, including theoretically faster speeds than Wave 1 products and cool new features, such as multi-user MIMO (MU-MIMO.) In this review, we look at five Wave 2 wireless access points, comparing prices and features, looking at usability and doing some performance testing.To read this article in full or to leave a comment, please click here(Insider Story)