Questions tagged [headers]
Probably not the tag you want, please use something more specific like http-headers or smtp-headers.
71
questions
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14
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Remove 'Server' header in IIS 10 [duplicate]
Our compliance department wants us to remove the 'Server' header when someone hits our server via IP address. I don't know how to accomplish that, can someone help? To be clear, I know how to do this ...
- 167
0
votes
1
answer
85
views
Multiple issues with Nginx configuration
I am quite new to Nginx and I just can't make it work. I have a web app hosted in Azure. It's a WordPress website.
Here is the Nginx file:
server {
#proxy_cache cache;
#proxy_cache_valid ...
- 103
0
votes
1
answer
161
views
Postfix header_checks with multi-line headers and capture group
We have a header_checks regexp passed to the "cleanup" process, but it's not processing the header as a single header if it's on multiple lines.
header_check (pass value of header to FILTER):...
- 103
1
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0
answers
236
views
Configuring postfix to use SendGrid SMTP relay with fixed FROM address but need to append REPLY-TO of original sender
I have been trying to resolve for a couple of months using multiple different configurations.
The local delivery to a Dovecot mailbox ([email protected]) keeps the original sender (sender@gmail....
- 11
0
votes
0
answers
54
views
Multi-Prefix (CORS Header)
How can I make this so it handles both https/http?
add_header Access-Control-Allow-Origin "https://sub.example.com";
What is happening, is specific resources rely on http traffic (//api....
- 101
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votes
0
answers
196
views
Can't modify header Content-Type in PHP with Nginx
I have a
nginx/1.18.0 and
php-fpm 7.4.19 (fpm-fcgi)
PHP code header('Content-Type: text/css',true) doesn't modify the header,
the same for application/javascript or image/jpg,
files are sent with ...
- 1
1
vote
1
answer
517
views
NGINX 302 redirect / proxy
I have an icecast server that runs on port 8000 however when I set up a proxy using NGINX I seem not to be able to make it look like it is the original server.
I am wondering is there anyway to kinda ...
- 185
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0
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152
views
Postfix: Rewrite header FROM sender based on sasl login username
Lets say I got a sasl login user called myloginuser. The user owns the domain: example.org and has set up following email address: [email protected]
myloginuser is authenticated and wants to send an ...
- 101
0
votes
1
answer
148
views
From "Display Name" not working - Postfix/Dovecot
Working with Dovecot, Postfix and MySQL to send email from my web server (at [email protected]) but what shows up in the inbox is example instead of the display name I put into the email client (...
- 11
0
votes
1
answer
942
views
Strange issue with forwarding auth headers from apache to nginx - Non empty header(se_custid/ein) not found in the request to proceed
On the setup describe below, Looks like apache is not able to forward required headers to nginx or nginx while forwarding initial request is not forwarding full URL but just relative path.
The idea ...
0
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1
answer
3k
views
How to access X-Forwarded-For header on HAProxy behind AWS Loadbalancer
On HAProxy instances running on K8S I need to block certain IP addresses manually on HAProxy. Currently I am failing already to log them. Per the AWS docs the loadbalancers set the X-Forwarded-For ...
- 85
0
votes
2
answers
13k
views
How to add http host header in URL?
I have web app deployed in K8 in aws & configured LoadBalancer to call the same from internet.
In the Postman I call like ,
GET https://myteams.myorg.net/config
Headers: Host doom.myteams.myorg....
- 1
0
votes
1
answer
97
views
Dovecot sieve concatenate heqders
Setup
postfix forwards all mails to an archive@domain user via always_bcc,
postfix saves all the RCPT TO in X-Envelope-To headers to perserve the bcc recipients,
postfix deletes X-Envelope-To for ...
- 31
0
votes
1
answer
150
views
Multipart text/html email from Invision Community not parsing correctly [closed]
First of all, yes I have contacted Invision Community support. Yes, I am a paying user with an active license. We went back and forth for several hours and all they have to say is there's nothing ...
- 11
1
vote
1
answer
2k
views
Linux header 4.9.0-11-amd64 is missing in debian
I am a software developer and have only a basic understanding about Linux systems. We are in a migration phase from GCP to AWS and found that the Linux headers are missing while installing Cloud ...
1
vote
0
answers
363
views
Apache: Setting response headers based on the existence of multiple response headers
We are attempting to enforce a set of non-cache headers in cases where a reverse proxy does not return any cache headers, in an effort to allow independent backend developers to set headers as they ...
0
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1
answer
1k
views
Postfix header_check regex with if conditional not matching - change sender address when recipient domain matches
I have a header_check that should match when the RECIPIENT address is domain.com and if it matches, then it changes the SENDER address to [email protected]
Scratching my head a little on this....
- 13
0
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0
answers
612
views
Compile ModSecurity 3.3 with YAJL
anyone could help? I'm stucked on this.
I already compiled ModSecurity 3.3 on this machine (followed these instructions). Now I'm trying to compile with YAJL (Yet Another JSON Library) to be able to ...
- 1
1
vote
0
answers
586
views
Apache2 - Header directives are not working
I would like to enhance the security of my server, so I'm following a guide regarding server security. I'm new to the subject, therefore there are many things I struggle to understand and there is ...
- 113
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0
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833
views
Specify header set depending on the HTTP referer
I am working on two separete ReactJS project which are both making use of the PHP API. Both react project are running from the dev server on port 3000 and one on 3001. Because the ReactJS on these ...
- 268
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0
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3k
views
Why doesn't nginx proxy_hide_headers directive work in this case?
I have an nginx server block like this, and I am trying to use the proxy_hide_header directive to hide the Content-Security-Policy response header from the proxied server because I am not running an ...
- 243
1
vote
1
answer
3k
views
Removing one cookie in proxy_pass of nginx
I'm trying to proxy_pass the whole request coming to my nginx to certain base URL to another upstream server removing server cookie. All other cookies, HTTP headers, the URL itself should be kept as ...
- 49
1
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1
answer
6k
views
setup SameSite=none value in Nginx webserver
I need to setup SameSite=none value in Nginx webserver
In case of using Nginx as main webserver and non reverse proxy will the below configuration work?
Inside server block
location {
...
- 11
0
votes
1
answer
3k
views
Alter Nginx reverse proxy cache header from Public to Private
I have an Nginx cache server getting content from an origin server, the origin server sets Cache-Control to Public so my Nginx cache server can cache the content and make less requests to origin. But ...
- 1,107
1
vote
1
answer
932
views
set header in .htaccess not working if REQUEST_URI contains a word
I need to set some headers if REQUEST_URI contains the "compile" word.
My uri is:
http://myurl/compile/123456/123456?token=myvalue
This is the code in the .htaccess that DOES NOT work:
Header ...
- 131
0
votes
1
answer
156
views
Strict-Transport-Security header, specific questions regarding adding to my Apache 2.4 setup
I have several IP-based virtual hosts that I want to add the Strict-Transport-Security header on. I'm using Apache 2.4 custom compiled.
Currently I have two <VirtualHost> containers for each ...
- 1,426
0
votes
2
answers
917
views
Block all requests except certain header
I'm using CloudFlare in a shared environment and I'm trying to help block non-CloudFlare users who circumvent to my origin IP. Loading up the web page I see the header server: "cloudflare". So I ...
- 11
-1
votes
1
answer
598
views
I can see HTTP/2 headers with curl. But, if this protocol works with frames and binary numbers: shouldn't these headers be "invisible"?
HTTP/2 has several differences with respect to HTTP/1.1. One of them is the use of frames, binary numbers and compression to optimize the headers. However, when I use "curl -v --http2" against a ...
- 51
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0
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177
views
Embedding 3 bytes custom data in IPv4 header and then filter by iptables
In my modified OpenVPN server process, as an intermediate node, I'd need to embed my custom 3 bytes data in the header of every IP packet and then in the same machine (after going through tun) filter ...
- 103
1
vote
1
answer
159
views
X-XSS-Protection header not set for the HTML document even that it is enabled in config file
I enabled the X-XSS-Protection header in the web.config file:
<httpprotocol>
<customheaders>
<remove name="X-Powered-By" />
<add name="X-XSS-Protection" ...
- 11
0
votes
0
answers
639
views
My Postfix is rewriting From: header for incoming emails with bad From headers
I received some phishing emails, and the From: header contained ONLY a display name. Like :
From: Timmy Tester
Postfix then delivered the email, but appended its hostname to FIRST PART of the ...
- 371
1
vote
1
answer
1k
views
Users with Google Proxy IPs
On my website, we log user IPs to ensure we're able to properly moderate and prevent abuse.
We are aware of Proxies, such as Opera VPN, Tor, and others.
However, I am not aware of Google itself having ...
- 573
0
votes
1
answer
599
views
Exim: how to rewrite a header to remove a string like +1234+?
Hi sorry for a bit of a newbie exim question.
For historic reasons we have email going through a smart host addressed to something like: johnsmith+1[email protected] (where 12345 can be any ...
- 3
0
votes
1
answer
816
views
Why does all my sites inherit the HTTP header from the main site?
I have two sites on the same Nginx server.
The site www.example.com contains HTTP headers, but not the analytics.example.com
When I go to the analytics.example.com site there is an error message in ...
- 91
4
votes
1
answer
1k
views
HTTP Debug method reveals Server header on IIS
Stuck with really weird problem and can't figure out how to handle it. So, I have asp web api application hosted in IIS 10. I use IIS Rewrite module with outbound rule which removes any Server header:
...
- 141
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0
answers
2k
views
IIS Reverse Proxy: Too Many Redirects and Header Code of 302
[This is a cross post from ESRI's GIS site; I am not getting any luck there]
I have not been able to find step by step directions for ArcGIS for Portal and Reverse Proxy which uses IIS as a server. I ...
- 111
1
vote
2
answers
3k
views
Is it possible to fix corrupt LUKS header?
I just accidentally overwrote the LUKS metadata of my volume with a new LVM header. I have copy of the original LUKS header but can't find it. Just in case, I made a dd image of the first 10MB of the ...
- 11
1
vote
0
answers
51
views
Office365 removes mail headers before send
We're sending mails using c# Mail library, we need to send specific headers to track them through external providers. We've tried some months ago and it worked, but now trying again before deploying ...
- 111
0
votes
2
answers
577
views
LiteSpeed ignore PHP header 404 status
After moving my website to a webhost which uses LiteSpeed it seems PHP header is ignored.
I have tried these variations:
$s = "HTTP/1.1 404 Not Found";
$s = "HTTP/1.0 404 Not Found";
$s = "Status:...
- 97
0
votes
2
answers
4k
views
add_header not working in Nginx location
So, I've been trying to figure this out for the past 8 hours, but it seems I'm stuck...
I have the following Nginx config file:
server_tokens off;
upstream php-handler {
server unix:/var/run/php5-...
- 269
1
vote
1
answer
4k
views
add_header 'Cache-Control' working only without location context
I've installed nginx/1.10.3 (Ubuntu) and changed the original config file so that it is only slightly different at the top of the http context:
http {
add_header 'Cache-Control' 'no-cache';
and ...
- 11
0
votes
1
answer
111
views
Is it possible to identify a proxy sever (IP & other headers) as the user who originated the request?
Is it possible to identify a proxy sever (IP & other headers) as the user who originated the request?
Example 1 (Standard use case):
I have a proxy server a.com that proxies all requests to b....
- 161
4
votes
1
answer
6k
views
HAProxy - Add response header based on request host
I have a HAProxy set up to redirect traffic to a few internal servers.
What I'm trying to do is to set some response headers, based on the request host. Unfortunately I can't get it to work.
Current ...
- 55
0
votes
1
answer
807
views
How do I filter tcpdump results based on a missing header?
My HAProxy adds 'X-Proto: SSL' as a header to requests that are over HTTPS.
I'd like to use tcpdump to see the 'Host:' header of all requests that do not have that 'X-Proto: SSL' header.
Here's what ...
- 921
1
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1
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514
views
Which headers take precedence -- the ones set by Nginx or the application server's?
I'm using Nginx on CentOS with a Rails server. I'm confused about how headers get set. If Nginx sets headers and the applicatino server (Ruby on Rails in this case), which one wins out? I have this ...
- 184
1
vote
2
answers
5k
views
Redirect real IP client nginx
How to send to proxied server the real ip of client?
My settings are:
server {
listen 80;
server_name foo.example.com;
location / {
proxy_pass http://someip;
proxy_set_header Host $host;
...
9
votes
1
answer
20k
views
Chrome DevTools - Request Header Size
Is there a way to get the total size (in bytes) of the request header that the browser is sending to the server for each request?
- 191
3
votes
1
answer
4k
views
Nginx on CentOS: How can I change the "Server" header?
I'm running Nginx on Centos6.
For security reasons I'd like to change/remove the Server HTTP header contained in the response headers.
For instance,nginx's default Sever header looks like:I'm ...
- 31
1
vote
2
answers
2k
views
Postfix swallows Bcc header
I use the postfix 2.9.6 and use a milter to read the contents for my application. I am seeing Postfix swallows Bcc: header from the incoming emails and my milter missed just that Bcc header. Is there ...
- 149
2
votes
0
answers
1k
views
Nginx proxy_pass loses headers when using http2
I've encoutered a problem with nginx losing headers to backend when using http2 protocol on nginx(regular http to Wildfly 10 backend). The below config works when taking the http2 parameter away and ...
- 21