Questions tagged [uptime]
The uptime tag has no usage guidance.
102
questions
6
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2
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Is there a locally hosted service (similar to Pingdom) for monitoring uptime/response time? [duplicate]
Possible Duplicate:
What tool do you use to monitor your servers?
I'm looking for something to monitor intranet apps and internal web services, and provide logs of historical response times, ...
-1
votes
1
answer
919
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What is the most stable AWS EC2 region? [closed]
I'm wondering if anyone has compiled any stats about which region in AWS has experienced the fewest outages, and/or has the best uptime percentage? From my very anecdotal experience US-East-1 (the ...
2
votes
1
answer
140
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Considering no website/service is 100% up, how do systems measure web downtime with precision?
I think the title speaks for itself.
But, to give an example: In a recent post, 37 signals show it's real downtime and compares with other web services. They get very few down time and probably most ...
3
votes
8
answers
4k
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How to protect power strips from accidental shut-offs/"cleaning lady" attack?
Are there any power strips or products designed to defend against a "cleaning lady" attack (cleaning crew is vacuuming the floor and bumps the power strip switch, turning off all the connected ...
0
votes
1
answer
632
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Is there a pingdom-like service that has hosts in Asia and South America [closed]
I am looking for a remote monitoring service, similar to pingdom, that has more global reach. Right now pingdom only has coverage for North America and Europe. Does anyone know of a competing service ...
1
vote
3
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214
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Do these server uptime 'pinging' services really do anything special?
Other than pinging a particular endpoint like to see if my website server is returning, do these server monitoring (ping) type services offer anything else?
I'm just thinking it is cheaper to get a ...
0
votes
1
answer
3k
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Fake Server Uptime (Linux/Windows) [closed]
Is it possible to fake the server uptime in any way (throttling the time).?(Linux/Windows). I guess it will cause serious troubles, still just wondering.
-Cheers
0
votes
2
answers
74
views
Check status of links to pages posted on my site
When people post links on my site, I kinda want to just make sure that the website they link to is active and not dead. How can I check this?
I was thinking to use meta data or title but I don't ...
4
votes
3
answers
468
views
How do I handle post-mortems/incident reporting with Nagios?
I just started using Nagios and I like that my team can acknowledge problems, but I haven't yet found a way to log the solutions that are used to correct the problems. Is there a tool that logs ...
2
votes
3
answers
3k
views
DNS Round Robin only if one goes down?
I've got two servers, equal capabilities in terms of processing power and load. What I am trying to accomplish is this: (I already own and run DNS servers so this shoudln't be a problem).
Server A ...
2
votes
1
answer
2k
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What does the suffix 'w' and 'd' mean with 'TIME+' in top?
Here's a chunk of the top from my server:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
18878 www-data 20 0 200m 13m 4704 S 0 0.2 0:00.07 apache2
12374 ...
0
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4
answers
13k
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Difference between a ping and a GET request? [closed]
What is the difference between a ping and a get request? The goal is to see if the site is up.
2
votes
5
answers
267
views
Reinstalling Linux: how to avoid downtime?
My website runs on a dedicated Debian LAMP server . I would like to update the system (let's say I have a pretty old Debian version and I want to reinstall everything from scratch)
What strategy can ...
0
votes
2
answers
353
views
How Can Linux Top Show 2% Idle, but Load Say 1.20?
On CentOS5, I'm seeing the 'top' command showing a hover between 20% and 2% idle, but then the load says 1.20. How can that be possible? When I type 'uptime', as well, I see 3 load numbers that are ...
36
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7
answers
78k
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Determine process uptime
Is there a way to determine the 'uptime' of a process in Windows. Disappointed to find that it is not one of the attributes available when using the Task Manager.
1
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2
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302
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Uptime Monitoring solution that opens a constant socket connection?
I want to monitor some servers and some of them have the potential of having very unstable connectivity.
This is because they are located in office locations that only have consumer internet access.
...
6
votes
7
answers
5k
views
Detecting restart since last run in a shell script on Linux?
What's the best way to tell from a shell script if the host has restarted since the last time the script was run? I can think of storing the uptime in a file on each run, and checking if it has ...
11
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7
answers
2k
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Uptime Monitoring Every Second - Bad For the Server?
I'm wondering if there's avantages of checking if a server is UP by doing a "HTTP GET Request" every second?
Can any server handle it?
3
votes
2
answers
664
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Exposing server uptime a potential security vulnerability?
I run a browser-based game and as part of a page with a bunch of game statistics, I have the server uptime listed. It's currently at 177 days and so someone mentioned to me that I shouldn't do this ...
2
votes
4
answers
316
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Question regarding uptime strategy for website
I'm working on a website where we need to have a good deal of uptime. Specially in the short bursts (15-day periods) that the website's events happen.
The page is dead simple and can be served ...
8
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6
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60k
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Ping Equivalent For Checking If A Port Is Open
How do I check if a port is consistently alive? For example, I could use
ping 192.168.1.1 -t > results.txt
This will ping 192.168.1.1 continuously so that I could monitor it.
Is there an ...
0
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3
answers
254
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requirement for monthly uptime and system performance
Management wants uptime and system performance data monthly (CPU) for our systems which consist of a mixture of linux/unix/windows machines. Anything out there that might provide this information?
...
1
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3
answers
144
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Should I leave my hosting provider
I have my website hosted with a hosting provider and they have recently had a serious outage. So at the moment it is at 48 hours and counting where I can't access email, http or ftp. I'm obviously ...
0
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1
answer
72
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What problems can I have by pinging or making a HTTP request to a website every minute?
What problems do I have to think before creating a monitoring system like pingdom, etc?
2
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3
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279
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Is reading the HTTP GET response enough to know if the server is up?
I want to make sure the site is UP and running. Is reading the HTTP GET Response enough?
What does services like PingDom test?
1
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1
answer
3k
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May I use CDN for whole website (PHP, Apache, MySQL) or just for images and CSS, JS files?
May I use CDN for whole website (PHP, Apache, MySQL) or just for images and CSS, JS files?
What's the best choice > cloud-hosting or dedicated-hosting? Does CDN has that support?
Witch hosting you ...
2
votes
3
answers
2k
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Is there a Ruby, Python or open source way to monitor uptime?
Is there a Ruby, Python or open source uptime monitor like PingDom, etc?
2
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3
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303
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"uptime" and "who" disagreeing
I've got an Ubuntu server that's exhibiting a somewhat strange behavior. uptime reports the following:
07:48:10 up 627 days, 21:19, 3 users, load average: 0.04, 0.01, 0.00
w reports:
21:59:25 up ...
0
votes
2
answers
176
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Verifying hosted VOIP PBX uptime
For the second time, I'm outsourcing my VOIP hosting to a provider, whom I have to trust their sales pitch of 45 minutes down per 365 days. Is there an automated way I can test their server(s) ...
0
votes
2
answers
275
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service uptime guarantee calculation
I have a web system. I need to calculate the up time of the whole system.
I have load balance (in the moment without virtual ip and redundant load balance), one database. Two servers as cluster. ...
3
votes
3
answers
14k
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Method to calculate downtime percentage
I need a calculation to work out the downtime percentage of a server.
I am making a script that runs via cron every minute to check the uptime of a remote server.
The two values I have to play with ...
2
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4
answers
16k
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nginx: how to load a new conf file witout restarting nginx
I made a new conf file in sites-available (and linked it in sites-enabled) and now I want to "install" that conf file without resetting the nginx server.
As root, I can run nginx -c file.conf since ...
9
votes
8
answers
17k
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Simple web server monitoring (alive)
Any tip about software to monitor if a web server is up and running on linux ? It should be able to run with not knowing anything more than the URL. And it must have functionality to send an email ...
0
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5
answers
279
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suggest web server monitoring service [closed]
Please, suggest web server(web site, web hosting) monitoring service.
It should :
- be online
- monitor from different locations
- monitor uptime, response time etc.
- have alerts
4
votes
3
answers
399
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Reasonably-priced, multiple endpoint heartbeat software
We've got four servers in use for a mission-critical application that all need constant connectivity to each other--six always-up connections in total. I need a way to monitor these connections and ...
1
vote
2
answers
1k
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Keeps "SSH timeout" error in our AWS instance- how do i diagnose?
I am befuddled by this error. We keep failing to SSH into our AWS instance, whether it is is deployment or via console. I have tried rebooting a few times, but it does not seem to be helping.
Here ...
0
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1
answer
53
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How to add a string to every file opened in Apache
I have a lot of domains and it's getting hard to manage so I want to add a string to the end of every file opened in Apache so I can request any domain if check if the string is there so I will know ...
2
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3
answers
1k
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Is it possible to guarantee 100% uptime in redundant hosting servers inside a cloud computing structure?
I'm interested in find a hosting that can offer really 100% of uptime.
Is it possible in hosting servers inside a cloud computing structure?
3
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6
answers
3k
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How to transfer a domain name with 99.9999% uptime?
I am currently developing a project which is mission-critical. The actual domain name is registered with 1 & 1 and I plan on purchasing DynDNS Custom DNS service (which has 5 different ...
0
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3
answers
1k
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Help, my CentOS servers keep going down , No route to host after a random uptime
I have a couple of Centos linux servers, that have a very simple task, they run nginx + fastcgi for php , and some NFS mounts between them, readonly
They have some RPC commands to start some ...
0
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2
answers
253
views
How To Perform Distributed Website Monitoring?
I would like to know how sites like the following perform distributed website monitoring (from multiple checkpoints/countries).
pingdom.com, site24x7.com, uptrends.com, siteuptime.com, etc, etc.
To ...
2
votes
1
answer
2k
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php APC uptime problem
I am on LAMP with Alternative PHP Cache. It worked fine until yesterday when I updated the website and changed a few mySQL queries (I don't see the how it would affect APC opcode cache)
Today I see ...
0
votes
4
answers
354
views
System Uptime Monitors
I am looking for reviews and suggestions a an online service such as http://www.alertmefirst.com/
I need a service or system that can monitor the following and provide me daily emails and monthly ...
2
votes
2
answers
3k
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Lifetime of IIS worker process or AppDomain
I have an ASP.NET app hosted in IIS, and I have automatic worker process recycling/shutdown disabled. I'd like to have a rough idea of how long the app has been running continuously without being re-...
3
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0
answers
470
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How to monitor Flash applets?
We created a fancy Flash application for a customer and deployed it. The server itself is monitored by the hosting company, but is there any external monitoring service that works well with Flash ...
1
vote
3
answers
482
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Self uptime monitor?
Is there an app or a technique i can use to self monitor a server?
For a technique i was thinking of writing a log file every minute and clearing them every hour marking down every minute my app did ...
3
votes
5
answers
4k
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Storing / calculating historical load averages
When I run uptime, I get output similar to the following:
07:50:39 up 13 days, 5:00, 1 user, load average: 0.00, 0.02, 0.00
Is there a way, other than by running uptime every X-many minutes, to ...
0
votes
3
answers
581
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Converting a non-raid linux box to Raid, with minimal downtime
I want to convert a non-raid linux system to RAID1, using two new disks. I would like to do this with minimal downtime.
Rather than adding the disks and shutting down to single user mode to copy ...
0
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8
answers
3k
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Server Uptime before a reboot
I was just visiting a server at the datacenter and notied that it has been up(without a reboot) since last October (11 months). It is a VMHost running Windows Server 2003.
Even if something has ...
0
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3
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1k
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Apache uptime question
I've been doing web development for some time, but server admin has never been part of my job. I'm finding that more and more I need to learn about what is going on under the hood. Looking at server ...