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Questions tagged [web-server]

Refers to the software or hardware that make up a webserver, delivering content on a private or public website.

3296 questions
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How to fix Image Swapping Issue in iOS 8 with keep-alive + HTTP Pipe-lining?

Ever since iOS8, the sites I managed are experiencing an intermittent problem in which images are swapping locations with other images. This has been mentioned in a number of places, but with no apparent…
David
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What is Thin and why do I need it

This is a very noob question, and since I never really understood it, I would like an explanation: What is Thin (or Passenger or other alternative)? What is the purpose of Thin (or other alternative)? Why do I need Thin (or other alt.) with Apache…
agent provocateur
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How much free memory should I have on my webserver?

I have a webserver that's currently hosting two Wordpress sites and some java-based collaboration software. The server has 2G of memory and is currently using about 1.8G of the available memory. Right now what's on here is pretty much a pilot…
neanderslob
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Is there a big difference between CentOS 6.4 to 6.2 and should I up/down-grade?

We have two separate managed web servers. One is running CentOS 6.2 and is used as a production environment for a number of sites. The second one runs CentOS 6.4, and hosts some internal applications, such as our wiki, gitlab and issue tracker. I…
charliefortune
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How do CDN (Content Delivery Networks) server work?

There are many CDN (Content Delivery Networks) for hosting mainly static content. How do they work? How they handle http requests?
Manthan Desai
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Handling errors in nginx in a reverse proxy configuration

I'm using nginx as a reverse-proxy over my existing web server. I only want to manage a single set of custom error pages, and ideally within nginx as this is the level closest to the client. Now I'm fine with using the error_pages and…
isNaN1247
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How to achieve 500K requests per second on my webserver?

I recently gifted myself a new dedicated server and I am trying to squeeze maximum performance out of it, for fun and learning. I am trying to achieve maximum possible requests per second this server can handle and aiming for 500K requests/sec as…
Arpit Tambi
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How to get nginx to redirect from www to non-www domain?

Let's say I want to redirect from www.example.com to example.com and I want to do this using nginx. I looked around and did not see any good documentation on this so I figured I would ask and answer my own question.
Jauder Ho
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My server setup for a heavily used API

I will soon be buying a bunch of servers for an application that I am about to launch but I have concerns about my setup. I appreciate any feedback I get. I have an application which will make use of an API that I wrote. Other users/developers will…
Abs
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Is there a way to turn off client browser caching for specific websites?

This is a browser agnostic question but we're testing with IE9. One of the web apps our users visit is being randomly cached and changes aren't showing up when they should. No other site has this issue and we've worked with the vendor who claims it…
GollyJer
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Change how Nagios determines if server is offline?

I'm new to nagios and my server is on a network which does not allow the server to be pinged. Is it possible for me to check if the server is up another way? e.g via SSH or HTTP? How would I do this so on my nagios report it doesn't show the server…
Ulkmun
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What causes a 400 Bad Request error for null ("") and why would our nginx logs have so many?

Daily logs from Logwatch regularly report 400 Bad Request, null: 1744 Time(s) from our nginx logs. The log entries look like: 123.123.123.123 - - [25/Jan/2011:14:44:19 -0500] "-" 400 173 "-" "-" Can anyone explain how these are generated and why…
johnml
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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 alert when the site goes down. Should not be hard to…
Zitrax
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What is the difference between a cache, a primed cache and an empty cache?

Can someone explain the following concepts to me as the relate to measuring the data transfer of data from my web site. Whats the difference between a cache, a primed cache and an empty cache? Can you give a a definition for each?
Enrique
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Do you use different wallpaper or background colors for dev, production servers?

I want to make it easier to distinguish between server's connected via rdp, without draining resources too much. Do any of you use any wallpaper, and if so, can you show any examples? Or do you use a custom desktop background color? Or do you use…
crosenblum
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