The uptime tag has no wiki summary.
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2answers
107 views
How can you tell if a server is down?
Let's say I am getting no connection to a website over http, ie. "Oops! Google Chrome could not connect to x" returns in a browser. What steps can I take to determine if the server is completely ...
0
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2answers
50 views
Command / Method to find the up-time of SSH server daemon & Nginx
I am looking for a method / Linux command to get the up-time of the open-ssh server and Nginx server running on my Ubuntu system. I want to know the up-time for calculating some internal statistics. I ...
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0answers
31 views
Routing Websites and Emails to Backup Server in case of Outage
I'm sure this question has been asked many of times before, but I don't know where to start to begin to uncover the solution.
I host 40+ websites on my dedicated server. A handful of these, let's say ...
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0answers
51 views
Linux - incorrect Idle time values from /proc/uptime
I am curious as to why I am getting an incorrect Idle Time from the /proc/uptime on my server.
Output of cat /proc/uptime from my server:
$> cat /proc/uptime:
1218960.08 15958635.85
$> ...
0
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0answers
42 views
How do to refer to server “push” based alerting/monitoring features I am looking for [duplicate]
I have searched here & StackExchange and read about many products like Nagios but am having trouble finding solutions specific to our need and I would like some help getting the terminology right ...
2
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3answers
97 views
Achieving Five Nines
I am building a web application where uptime is key. I understand that 100% uptime is not realistic but I would like to achieve five nines. I'm unsure as to the most prudent way to accomplish this.
...
1
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2answers
85 views
How to verify promised uptime before hiring a server?
I've been bitten by this too many times. You find a well known hosting provider, read comparative reviews (and pass by on any company that has influence in those review), they promise 99.99% uptime, ...
0
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2answers
85 views
Maintain uptime in the face of required reboots [closed]
I'm researching setting up a dedicated server to run some virtual private servers on (for my friends, hosting some websites, etc.). However, I am stuck as to how to maintain uptime of the guest ...
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2answers
141 views
DNS no longer works after server reboot [closed]
Strangely enough, when I reboot my Ubuntu 12.04 server, the DNS no longer works, which makes the domain unavailable to access to my site. Normally the DNS should be working after a reboot, but this ...
0
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6answers
100 views
Monitor Windows workstation uptimes
I need a simple setup to monitor the usage of several Windows 7 machines in our office. Nothing fancy, I just need to know when they are turned on and off, and ideally have an overview of daily uptime ...
1
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1answer
223 views
How does Heartbeat determine when to switch to the secondary? Can you force it to switch?
I've been trying to understand exactly how Heartbeat works - I understand how when one server dies, it switches to the backup. But, for me, it also switches when the primary has a large increase in ...
1
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2answers
633 views
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 ...
-1
votes
1answer
246 views
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 ...
1
vote
1answer
85 views
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 ...
0
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6answers
441 views
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
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1answer
226 views
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 ...
2
votes
3answers
132 views
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
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1answer
427 views
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
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2answers
56 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
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3answers
244 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 ...
1
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3answers
338 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
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1answer
390 views
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 ...
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4answers
263 views
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
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5answers
176 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
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2answers
232 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 ...
1
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2answers
807 views
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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2answers
100 views
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.
...
4
votes
7answers
910 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
votes
7answers
631 views
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
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2answers
109 views
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
4answers
188 views
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 ...
2
votes
4answers
692 views
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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3answers
163 views
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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3answers
125 views
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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1answer
58 views
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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3answers
241 views
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
vote
1answer
838 views
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 ...
1
vote
3answers
858 views
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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3answers
223 views
“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 ...
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2answers
114 views
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
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2answers
194 views
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
3answers
2k views
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 ...
1
vote
4answers
745 views
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 ...
4
votes
6answers
3k views
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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5answers
217 views
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
3answers
345 views
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
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2answers
829 views
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
votes
1answer
43 views
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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3answers
409 views
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?
2
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6answers
1k views
reaching 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 ...
