The best 24 free tools for troubleshooting

Here are 24 great free tools to help you troubleshoot almost any issue!

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Security 101: Introductions and vocabulary

With security being such an important part of every task a sysadmin undertakes, and with the stakes so high, we are starting a new series on the GFI Blog that deals with Security 101. The last week of every month, we will cover something along the lines of a “Security 101” topic to help those who need security, but don’t have the background, to improve their skills.

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The 24 funniest server naming conventions you’ve ever seen

Some sysadmins do like to have a bit of fun even when naming servers so we’ve put together some very cool and funny server naming conventions that we’ve come across. It’s just a server name, but why be boring when you can be witty (or weird).

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25 tricks every IT support pro should know

If you can’t dazzle them with brilliance, baffle them with shortcuts and tricks!

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10 hacks that will make your sysadmin life easier

Here’s a list of 10 hacks that will make your sysadmin life easier. Have a look at these and see how many work wonders for you.

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Troubleshooting DNS resolution

Being able to quickly troubleshoot DNS is a key skill, and one that every IT pro should have. Here are some tools and methods to get you started.

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The 21 most common misconfigurations that will come back to haunt you!

Sometimes poking at things with a sharp stick can get us into trouble, and this list describes the 21 most common misconfigurations that will come back to haunt you, because poking at things randomly means trouble if you don’t pay attention to the outcome!

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Troubleshooting networks with PSPing

You can use PSPing to perform simple “is it up” tests for services, or when ICMP is blocked by a firewall, but you can also perform much more complex network troubleshooting for problems caused by latency, or related to bandwidth. More in this post!

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Troubleshooting networks with TCPing

If you’d like to learn how to evaluate firewall connectivity, check on service restarts, and determine if servers are up even when ICMP is being blocked, read on for more on TCPing.

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How to resolve ADFS issues with Event ID 364

One common error that comes up when using ADFS is logged by Windows as an Event ID 364-Encounterd error during federation passive request. There are three common causes for this particular error. If you encounter this error, see if one of these solutions fixes things for you.

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