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Feb 22, 2018 · I got all of the log files from IIS. But now I'm looking for a way to filter spam like /wp-admin Brute-Force stuff and to monitor just the 'real' visitors data without bots and internal refferers. Is there any better tool for that kind of log reporting or is there a way to achieve that goal in Deep Log Analyzer?
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iis log file analyzer online free iis log file analyzer linux iis log file analyzer tool free iis log file analyzer - SolarWinds Loggly. SolarWinds Loggly is a cloud-based IIS log analyzer tool designed to streamline log management tasks. It offers advanced features teams can use to organize and visualize IIS logs for faster error resolution.
- SolarWinds Security Event Manager. Another great IIS log analyzer from the same team as Loggly is SolarWinds Security Event Manager (SEM). SEM is designed to automatically collect, normalize, and parse your IIS log data to help make it easier than ever to keep your web server performance at its highest level.
- WebLog Expert. WebLog Expert is a powerful log analyzer with the ability to analyze logs generated through Apache, IIS, and NGINX web servers. The tool aggregates logs and provides crucial information about website visitors’ activity statistics, search engines, web browsers, and referrals.
- Deep Log Analyzer. Deep Log Analyzer is a log analytics solution designed to monitor and analyze logs generated from Microsoft IIS, Apache, and NGINX web servers.
- Overview
- Tools and knowledge used in this Troubleshooter
- Scenario
- Data collection
- Data analysis
- Reporting
- Help
- Conclusion
- GeneratedCaptionsTabForHeroSec
Applies to: Internet Information Services
This article describes the troubleshooting steps to identify performance issues by using Microsoft LogParser to analyze Internet Information Services (IIS) logs.
•Microsoft LogParser
•Command Prompt
•Basic knowledge of IIS HTTP Status Codes
•Basic knowledge of SQL queries
As a system administrator you begin to hear reports from users of your system hosted on IIS that the responses are slow. Some of them mention that Web browsers simply time out or stop responding completely when they are accessing your website.
You jump into action and recycle the worker process. All appears to be working again, as normal.
However, you can't accept that as a solution and need to know why it happened, but don't know where to start. You have no details from the users, such as error codes, screen shots and worse, you have no performance data to compare what just happened to normal performance. In many cases, other new issues take you away from any serious root cause analysis.
Microsoft LogParser is a good tool that is quick and easy to use. In many situations, the tool will help you quickly get to a deeper understanding of what happened on the server and may help you identify problems. You can take the information you gather with LogParser and pass it along to your database team, your network team or to your developers for more analysis.
By default, IIS log files are located in the following directories:
•IIS 7 and later: %SystemDrive%\inetpub\logs\LogFiles
•IIS 6 and earlier: %WinDir%\System32\LogFiles
In this troubleshooter, I will be using IIS 8. Open IIS Manager and select Sites, as shown in Figure 1. This will show you the ID of each website hosted on your server. You will need this ID to determine which W3SVC* directory to analyze.
Figure 1: Getting the ID of your website
Open Windows Explorer and navigate to the directory that contains the IIS log files of the website that experienced the performance problem. Figure 2 shows how that might look like.
Your first step is to determine which log files may contain errors. For example, if customers were complaining about performance on the 3rd of June, 2012, the log file might be u_ex120603.log, where:
•12 is the abbreviated year for 2012
•06 refers to the sixth month (June)
•03 is the 3rd day of the month
Note: The above example assumes that IIS logging is configured to rotate log files on a daily basis, which is the default. If you have changed the settings for IIS to rotate log files on a different time interval, such as weekly or hourly, then the log files names would be different. For more information about the syntax for IIS log file names, see IIS Log File Formats.
Once you have identified the IIS log files that contain errors, you should copy them to a location where they can be analyzed. This step is optional, but it is not recommended that you analyze your logs on your IIS server since your LogParser queries may take a long time to run, and if your log files are large then Log Parser may compete for system resources.
Screenshots of a command window containing LogParser queries and their results may be fine during the analysis phase of a performance problem; however, if you need to go in front of managers or directors to explain what happened, it may not meet the mark.
Note
In order to get charting to work via LogParser, you will need to install the Office Web Components. The following articles explain how to do this:
Figure 9 shows the LogParser query to create a 3D pie chart containing the number of requests and their associated HTTP Status code. I removed status 200, as those are successful. What I am after here are the requests which are something other than OK. Figure 9: LogParser Query (Create a 3D pie chart)
The result of the query is illustrated in Figure 10. There are a number of additional parameters which you can pass to LogParser that affect the image. For example, legend, groupSize, config, etc... To get a complete list enter: LogParser -h -o:CHART for a list of all parameters. This command will also provide a list of the different chart types.
Figure 10: LogParser 3D pie chart
When you install LogParser 2.2 on your machine, it installs into the C:\Program Files (x86)\Log Parser 2.2 directory by default. Navigate to that location and review the Samples\Queries and Samples\Scripts directories for an abundant supply of pre-written code that will get you moving fast.
You will also realize a great benefit by reading through the contents within the LogParser.chm file.
LogParser is a small but powerful tool to analyze a number of different system log types. This article focused on queries applicable to IIS Logs. When performance problems or errors are experienced in your IIS environment, it is sometimes difficult to know where to start.
LogParser can be used as a starting point, because a system administrator who has some SQL skills can quickly build some very sophisticated LogParser queries. These queries can be used to further the root cause analysis of the problem.
Learn how to use LogParser to analyze IIS logs and identify the cause of application failures or performance problems. See examples of LogParser queries, data collection and analysis steps, and tools and knowledge required.
Oct 15, 2020 · With the IIS Log Analyzer, log files from all of an organization’s IIS web servers can be consumed, parsed, and analyzed in one centralized location. This provides full visibility into the IIS infrastructure as well as insight into the performance of all applications running on these servers.
Apr 25, 2017 · HttpLogBrowser is a Windows desktop application that helps analyze HTTP logs of web sites hosted in IIS or Azure. It provides statistics, charts, filters, profiles, and custom fields to monitor and troubleshoot web activity.
The definitive guide to getting better insights from your website’s IIS logs. Plus, a tool to super-charge your IIS logs with custom fields to take your analysis to the next level. If your IIS website is like thousands of others, it generates hundreds of megabytes (or gigabytes) of IIS log files every day.
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Search IIS logs in real time to speed up troubleshooting. Receive alerts and notifications in Slack, PagerDuty, or via custom web hooks. Aggregate, monitor, and analyze all your logs in one place. Get the most out of your IIS logs with a free cloud-based IIS log file analyzer.
