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View Full Version : Free uptime monitor

michaelfoo
07-02-2003, 21:47
Why not post some GOOD + FREE uptime monitor (hosted) that you'd like to recommend to the others?

Easymonitor (http://easymonitor.com)
Pros:
1. Checks uptime availability every 15 minutes
2. Sends a notification email to your mailbox if there's any downtime and also email you when your site is up again.
3. Downtime history

Cons:
1. Monitors only 1 web site
2. Records only 10 downtime history
jameslieow
08-02-2003, 13:51
they shoudl try mointoring their own site -_-

However, this is a good service! :)
michaelfoo
08-02-2003, 14:05
Yes, this what I am trying to recommend to my clients to monitor their own site. However, the results are not very accurate since it monitors once every 15 minutes. Anyway, at least it is better than nothing! :D
fred
08-02-2003, 15:03
I think 15 minutes interval is pretty enough, unless you want to promise 99.99% uptime :D
jameslieow
09-02-2003, 11:29
Server
Address http://www.jameslieow.net

Status OK

Uptime 100.00%

:D
michaelfoo
09-02-2003, 11:35
You must monitor your server for at least 1 month before you can know the uptime of your server. As I have said before, it checks every 15 minutes, so the uptime is not really accurate. There might be 1-2 minutes downtime between each checks and you won't be able to notice that.
Zoomer
09-02-2003, 11:53
Anyone tried alertra?

The report is like
this (http://www.reverac.com/support/uptime/26jan.png).
michaelfoo
09-02-2003, 13:57
IMHO, Alertra is not one of the free one :)
fred
09-02-2003, 19:22
Originally posted by jameslieow
Server
Address http://www.jameslieow.net

Status OK

Uptime 100.00%

:D

hope a few months latter we still able to see such nice figure.

Fortunately my clients didnt have anything that 1,2 minutes down time will cost alot for them. So normally i just recommend eazymonitor. Well, you can always do a raid 5, but is it really worth it? Define your business first.
boston
11-02-2003, 00:29
check out Big Brother. it 's a freeware less you use it for commercial purposes
fred
11-02-2003, 09:58
opss... not sure Linux can be considered as a freeware or not
michaelfoo
11-02-2003, 21:54
Oh... I heard another version for Big Brother was called Big Sister or Big Queen... Worth a try too :)
Glenn
14-02-2003, 14:33
Server
Address http://www.opnex.com

Status OK

Uptime 99.85%

For 43 days, 17 hours

Next Test 12 mins

The only error being a HTTP 500 error due to poor PHP scripting by our webmasters.
On the whole, it is pretty good.
michaelfoo
14-02-2003, 14:53
Erm... excuse me guys... please stay in topic. This thread is not created for you guys to post your server uptime... Thanks.
Glenn
15-02-2003, 16:07
Well, I wasn't really posting for the sake of posting? I was just trying to tell SGWHT members that although at 15 minutes intervals, we are still able to see that it is able to track down downtimes. Usually more than 15 minutes if it is really a breakdown etc and not due to restart which usually is less than 3 minutes.
michaelfoo
15-02-2003, 17:13
Of course it is still able to track downtime for downtime that is more than 15 minutes.
seowbin
24-02-2003, 15:57
Originally posted by jameslieow
Server
Address http://www.jameslieow.net

Status OK

Uptime 100.00%

:D :D ur webby is down now..
michaelfoo
24-02-2003, 17:53
Same situation here too :p
DMA.USX
24-02-2003, 23:57
Originally posted by michaelfoo
You must monitor your server for at least 1 month before you can know the uptime of your server. As I have said before, it checks every 15 minutes, so the uptime is not really accurate. There might be 1-2 minutes downtime between each checks and you won't be able to notice that.
If you have downtime - it can't be just 1-2 minutes, believe me - only if someone pulled the network wire from your server, and then installed it back. Servers are usually not go down-and-up on themselves. They usually stabilize in the "down" state without human intervention :)
If you have overload - it will last that 15 minutes for the uptime monitor to come and spot it :) Because the overloads don't come from nowhere - they can be spotted in advance (unless you got slashdotted) and planned for. If you wish to know the server load - you should use other tools.

It isn't wise to use the uptime monitor as a load percentage test. It's more like putting a laser printer into UPS to test it's capacity. Most likely it will end in fried UPS.
The uptime monitor checking every minute is more of an extra burden on the server, than anything else.
fred
25-02-2003, 15:07
true... unless is minor problem and you just need to restart a particular service. And provided you can discover it right after the service is dead.
DMA.USX
25-02-2003, 15:19
Originally posted by fred
true... unless is minor problem and you just need to restart a particular service. And provided you can discover it right after the service is dead.
If you need to restart service on the unix-based server - the problem isn't minor. It needs investigating and curing the cause of it. Usually such problems don't cure by themselves either - so the monitor will definitely spot it, in 7.5 minutes on average. This is acceptable for normal sites, because if you have real mission-critical site - you usually have your own server monitor on it, which notifies you right away about malfunctions - and usually you do have a dedicated persons to look for the server. External monitor is useful in this case only to test the external connectivity to your site. Which you can do yourself, with less resource usage than generating a frontpage of the dynamic site. And - if it's misson-critical and you absolutely want the _external_ uptime monitor - you can afford to pay for it and tell them what to monitor and at what frequency.