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I am looking for a visual tail tool that can monitor several local or remote log files.

Optional features that interest me: color highlight based on log error level, coloring for special words, filtering of messages and/or notifications on new activity.

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You may try to use a combination of multitail and ssh.

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I forgot to say that I am looking for something that I could use as a dashboard. – sorin Jul 1 '11 at 14:24

I found a tool that can do this GeekTool, it even has a version that works on Lion (see the forum).

It can be used to do just simple tails, without filtering or other stuff, so maybe someone has a better alternative.

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Survlog ($)

Costs money but they do not say a thing about this on their web. I tried to install the app but it told me that it expired. Something is fishy...

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PostRemoteLog (free)

PostRemoteLog has Growl notifications support and it is free.

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While I haven't used it myself yet, I recently discovered Log.io. It appears to meet all your criteria.

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Only for the sake of completeness it shall be said, that there is a tool for Mac OS X with highlighting on keywords and some other features. It's called Logtastic

I know, this is an old post, but maybe someone finds this useful?! :)

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OS X has a Tail utility built right in.

Open a Terminal window, and the format would be tail -f filename.log

The -f option would make sure to keep displaying new entries to the file as it's written to.

Of course, this is the basic Linux tail utility, so there aren't coloring options and the like... however you can open multiple terminal windows / tabs to monitor different log files as needed.

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I was looking for something similar a few months back and discovered and excellent Linux appliance distribution called Security Onion: https://security-onion-solutions.github.io/security-onion/

I pretty much ignore the IDS and packet capturing (for now) and just use it for log analysis. It was pretty simple to set up virtual box and then load the Security Onion image. Other than being a little RAM hungry it's a great way to get some pretty sophisticated log analysis from several really good open source packages that are already integrated in a read-to-use solution. Now that I have logging pretty much taken care of, I might start playing with some of the IDS features built into it - but that takes even more RAM...

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