I've got two problems here.

1) Cloud based. No, no, no, absolutely not, no way, no how. I am not hooking up server farms to the internet. Monitoring systems stay behind the firewall. Please come up with a self-hosted version.

Moreso when:

2) They log directly into the system. Unprivileged user or not, if you've got shell on my box, "you" being a random company on the internet, it's not my box anymore. Someone hacks you and by extension they've hacked me.

Immediately interested by the title of this post as I'm using a competing product (Scout App) right now, clicked through and subsequently left the site within 10 seconds.

That is a terrible website considering your target market are UNIX geeks.

I've been a pretty big fan of Scout (ScoutApp) for this. To me, Scout's killer feature is the ease with which you can write a custom plugin. And, if that's too much trouble, just use the Generic JSON URI plugin and have your code/cron/whatever dump a json file with whatever you want to track.

This is quite a bit cheaper though.

tl;dr this tool is a cron for your monitoring scripts that reports to a cloud service which then gives you dashboards

Product information that I wish was on one page but instead is spread across five:

  - by default, agent only collects these [linux] stats
    - 1/5/15 min load average
    - cpu usage per cpu
    - memory usage (total,res,virt,cached)
    - network reads per second (RX?)
    - network writes per second (TX?)
    - disk reads per second (only #, so probably iops)
    - disk writes per second (only #, so probably iops)
  - collects output from monitor scripts [that you have to write]
  - sends output to sealion cloud via ssl
  - 'Your password is encrypted' (???)
  - have to edit a couple of files to make it collect info as root
  - have to create your own alerts
  - all data is erased after 3 (free) 15 (paid) or 45 (paid) days
  - features:
    - Dashboard & Charts
    - Alerts
    - Daily Digest
    - Raw output [from your monitor scripts]
    - Quick Setup
    - Enterprise Scale (???)
    - Time Machine (Server data is recorded for a week)
      (this is diff than 3/15/45 days reported above???)
    - Side-By-Side Server Comparison
    - Teams [access controls]
  - Pricing
    - FREE    2 servers  3 days data retention
    - $29/m   5 servers  15 days data retention
    - $49/m   10 servers 15 days data retention 
    - $249/m  50 servers 15 days data retention
    - $499/m  unlimited  45 days data retention
  - agent runs on your servers as unprivileged user
    - made with python 2.6
    - https://github.com/webyog/sealion-agent

I come from using New Relic for our server monitoring, and there are a couple things that I can see that I already love about Sea Lion, their realtime stats, and ad-hoc commands really opens up to allow any kind of monitoring. I would like to see the ability to rename servers instead of using their hostname.. as well as multiple stats on the page at once.. Other than that, this is really awesome!

Considering going on one of their paid tiers

Sorry to be the negative-nancy, but did Nagios (specifically XI) suddenly become hard or something?

Maybe I'm just an old neckbeard by now, but what's with this trend with cloud-hosted middle-man applications (read: expensive web 2.0 frontends) for standard software? If you can't install and configure your own server monitoring, what are you doing hosting your own servers? Am I missing something obvious here?

What if you're using AWS already? I couldn't find any word on CloudWatch integration.

Love the simplicity and the extensibility of running ad-hoc commands. Pricing looks okay, especially the unlimited tier as I hate per server pricing but $500 cap seems reasonable.

Spelling mistake in the very first screenshot in the very first visual when I clicked your link. Seperate -> Separate.

Was very easy to install. But could not figure out how to monitor more than one indicator at the same time.

How does this work? Do I need to upload some a file on my server or do any special configuration?

Can you explain little bit more on "Debugging Tool"? How to use as Debugging tool?

The scroll thing is very annoying. Can't you just have a list of product features?