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You are here: Home » Change Nginx Server Header After Installation

By Abhishek Ghosh June 22, 2015 9:29 pm Updated on June 29, 2015

Change Nginx Server Header After Installation

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What You Will Do if You Use Nginx From Repository? Here is How To Change Nginx Server Header After Installation Which Reads Server: nginx. Yes, it is TRUE that we said before that changing server name in header response only possible while building from source. But actually there is a limited usage way to change nginx server header after installation.

 

Change Nginx Server Header After Installation : What The Hell The Limitation Is?

 

nginx is five worded thing, you have to use five words. If you do not limit your unique name within the 5 words, you will get Segmentation fault (core dumped). Thats a small limitation. Unfortunately the word server is not 5 worded.

 

Change Nginx Server Header After Installation : How it is possible?

 

Like awk, sed is very powerful tool. The command is simple, not very difficult :

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Vim
1
sed -i 's/nginx\r/CHaNG\r/' `which nginx`

nginx to CHaNG. If I want to change from CHaNG to nginx, then it will be :

Vim
1
sed -i 's/CHaNG\r/nginx\r/' `which nginx`

Warning : BE CAREFUL ABOUT COPY-PASTING – the ‘ sign can change before s/ in the command and throw error! Copy-Paste in textedit or vim and check the punctuations first, then copy to ssh screen!

First after running, run :

Vim
1
nginx -t

then restart nginx :

Vim
1
service nginx restart

Like at this moment, after running curl -I our web server appears to be Cloud :

Change Nginx Server Header After Installation

Actually it is a bad idea to use a custom name. Because the hackers might get inspired to find out what kind of server it is! CloudFlare uses this kind of name – nginx-cloudflare. But if you run :

Vim
1
sed -i 's/nginx\r/nginx-cloudflare\r/' `which nginx`

After running nginx -t you’ll get Segmentation fault (core dumped). It is quite scary looking. You need to the opposite command to make the dog’s tail straight :

Vim
1
sed -i 's/nginx-cloudflare\r/nginx\r/' `which nginx`

Again read the read the previous guide on changing server name in header response and uncomment that server_tokens off. The version number has character – like 1.7.1; you can use more 4 character to make it better. Actually we can not switch the Server: part off, that is the problem.

Tagged With paperuri:(e5fbbe970427bc02977a8f82bbafa39f) , server: nginx chang name

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Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Orthopaedic Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

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About This Article

Cite this article as: Abhishek Ghosh, "Change Nginx Server Header After Installation," in The Customize Windows, June 22, 2015, January 17, 2021, https://thecustomizewindows.com/2015/06/change-nginx-server-header-after-installation/.

Source:The Customize Windows, JiMA.in

 

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