HTTP stands for Hyper Text Transfer Protocol and is the protocol used to transfer information around the World Wide Web.

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What is the Wireshark display filter expression to display ALL HTTP related packets?

What is the Wireshark display filter expression that displays ALL HTTP related packets? For quiz
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Timer_EntityBody, Timer_ConnectionIdle and Connection Closed Unexpectly

We have a windows application, it connects to a web service (XML web service hosted on a Windows 2008 Server IIS 7.5, no antivirus) and fetches some data to the client. But sometimes (around 5%-10% of ...
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2k views

How to properly use nginx echo support to respond with a 504 inline page?

I am trying to reply with a custom 504 page by using nginx echo support but for some strange reason when this is active the browser downloads the response instead of opening it. server { ...
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Websocket proxy with nginx: Error about POST request in server log, but works in browser

The situation I am running Etherpad, which is proxied via nginx. Etherpad uses Websockets with Socket.io. My nginx config is more or less this one. The location block for socket.io is this: rewrite ...
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1answer
290 views

Diagnosing a 2-minute delay in HTTP GET request

Under narrow circumstances, I get a 100% reproducible delay of approximately 2 minutes when I request a public web page. The page in question: https://id.openjdk.java.net/console/login Splicing ...
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2answers
95 views

How can I configure IIS on Azure to stream chunked data from a Node.js app?

I have a Node.js app that uses Transfer-Encoding: Chunked to stream data over HTTP continuously until the client disconnects. When running a local instance of Node, it works fine, but when deployed to ...
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2answers
7k views

How To Enable URL Filtering With Just Squid & C-ICAP

Before I posted this question, I read several set up guides online, the squid docs, c-icap docus, and also the ICAP RFC (3507). Unfortunately, the documentation for SQUID and C-ICAP does not provide ...
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1answer
3k views

301 redirect Rule For Load Balance F5 BigIp

I have a load balancer F5 Big ip for my website. Currently, I am having 302 redirect in place; however, I wanted to apply 301 but dont know how. For example: My website (abc.com) when typed 302 ...
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1answer
3k views

Retrieving kickstart and other .img file in pxe remote installation in CentOS

I am trying to installation CentOS through pxe tftp installation. Installation starts but it fails to download image files from the http server. but file are accessible on the http server. Logs from ...
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1answer
17 views

Creating a RFC 1123 compliant date for HTTP header creation on the CLI

I'm trying to create a HTTP 1/1 compliant date header using standard unix date(1) in order to post this to a RESTful server using curl or similar. Any ideas what format to pass to date(1) to get this ...
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1answer
8 views

Using awstats to monitor/graph visitors on a server that only serves images?

I have an apache webserver that serves up images. Lots of machine generated images (i.e. not static files). It doesn't serve any serious amount of html etc. files. A user might request many images one ...
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4answers
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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 ...
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1answer
19 views

xinetd read post data

I'm trying to write a simple handler for a webhook using xinetd and bash. I have the trivial case working with this config for xinetd: service github-hooks { port = 61000 ...
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34 views

Unable to open www.debian.org

I have a problem with a Debian virtual machine that cannot reach the debian website. The virtual machine have a public ip address directly assigned on the eth0 interface. HTTP/1.0 root@web1:~# curl ...
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1answer
15 views

IIS 7 WCF Webservices giving 404 error over HTTPS

I have some WCF webservices running under IIS 7.5 which are responding correctly to http requests but respond with 404 (Not Found) errors when methods are called using SSL. The binds for the site are ...
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1answer
23 views

How is Cache-Control: max-age affected by intermediate caching?

I am currently serving an HTML page to users with a Cache-Control: max-age=600 header. I believe this allows the users' browsers to cache the page for a maximum of 10 minutes. I am considering adding ...
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2answers
1k views

Getting a chunked request through nginx

First some background: We have an embedded device that uploads a lot of small events to a web server. Chunked encoding is used to post this information. Every event is send as a seperate chunk, so the ...
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1answer
32 views

Serve 200 without reading the request

I have a system where Server receives large files from clients Files are unused and deleted immediately Clients cannot be updated to stop sending files There are a known number of clients (required ...
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1answer
2k views

Apache tomcat server win8 cannot be accessed outside of local host

I have installed the apache-tomcat server on my local win7. The port I specified is 9999. Additionally, I use the distributed binary version of apache tomcat. Not installing as a windows service. I ...
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1answer
2k views

Apache: Allow only certain http requests, deny all else

We have an Apache server, on a Windows Server 2008 machine, that is used for specific secure traffic for our customers, like a gateway. Now, I only want to allow traffic for a certain range of secure ...
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1answer
29 views

Is it possible to redirect VPN traffic by Apache

There is a web server in my lab with Apache. Only 80 port is opened. I can install software on it. Is it possible to install some VPN tools and redirect the VPN traffic by Apache? In another words, ...
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1answer
1k views

Can I tail an http resource?

Is there a way to tail a resource such as http://someserver.com/logs/server.log ? This is what I would do for a local file. tail -F /var/logs/somefile.log I would like something similar to that ...
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1answer
1k views

Apache: Force HTTP 1.1 or Persistent/KeepAlive connections for HTTP 1.0 requests

I want to force Keep Alive or Persistent connections for all HTTP requests on my Apache 2.2.3 server running on RHEL 5.8. A lot of web crawlers are using HTTP 1.0 for some reason, and I would like to ...
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Proxy video from GCS through nginx to prevent CORS problems

I have videos hosted on Google Cloud Storage. Since I have some trouble with CORS on iOS I want to proxy my hosted videos through nginx. The idea is that a client requests https://foo.bar/abc.mp4 and ...
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1answer
3k views

Setting HTTP proxy in OpenVPN client

I'm having trouble configuring my OpenVPN client to use an HTTP proxy. If I don't enter any proxy information in the client.ovpn file I get the following output: Mon Jun 29 14:30:07 2015 OpenVPN ...
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1answer
2k views

HTTP proxy - expect 100 and authentication

I have an issue with Apache2 which I use as a proxy. My software sends HTTP PUT for protected resource with Expect: 100-continue Transfer-Encoding: chunked And instead of getting '401 ...
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2answers
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Squid throws error, The requested URL could not be retrieved

Sometimes I am getting the following error The requested URL could not be retrieved While trying to retrieve the URL: http://groups.google.com/ The following error was encountered: Unable to ...
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1answer
1k views

Hudson authentication via wget is return http error 302

I'm trying to make a script to authenticate in hudson using wget and store the authentication cookie. The contents of the script is this: wget \ --no-check-certificate \ --save-cookies ...
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8 views

Jetty : server is getting redirected to 302 instead of HTTP 500

We are doing a service call running on Jetty which has a expected behavior to fail with HTTP response=500 and gives a redirection url in the response location ( header ). In the subsequent call, ...
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18 views

Loading Flash Content while opening an Image link

The following image is hosted at puu.sh (http://puu.sh/k0Hki.jpg), apparently it loads a swf with a .jpg extension in the url. The following is what chrome/firefox shows as the source (while using ...
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1answer
42 views

Nginx Https issue http automatically redirected to https

I have a config file and have a site up and running. But there is an issue if we go to the non-SSL page then also it redirects back to https. I have a site in Magento and it has base URL as ...
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How to prevent malicious injection in argument to php “exec” (webhook -> bash script) [migrated]

I've written a webhook to integrate into chat (slack / mattermost api). The simplest way to get it up and running was a quick php script, which looks like this: <?php $token = $_POST["token"]; ...
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28 views

Can access server via SSH/FTP but other protocols won't work

I followed this guide to setup an "Upside-Down Ternet." Everything was fine up until the part where I configured IPTABLES then I lost SSH connection. Now I expected that because I'm messing with ...
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1answer
2k views

Request Entity Too Large mod_jk

I have setup where there is apache (httpd) and apache tomcat both are connected with ajp and in my http.conf LimitRequestLine 65536 LimitRequestFieldSize 65536 under <VirtualHost> and ...
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1answer
26 views

Nginx serving index.html fine, but requests for assets are bad

i have the following nginx config: server { listen 80; listen [::]:80; listen 443; listen [::]:443; server_name oreqizer.com; ...
4
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1answer
54 views

Understanding Chart from Google SRE Book

While reading Site Reliability Engineering, I read the following: I don't understand how to read this chart. As I understand the purple region represents the 50th percentile (half of all traffic). ...
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1answer
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Mod_cache is not logging or caching

Apache 2.2 on RedHat 6.3. I have a virtual host that is setup like so: <VirtualHost xxx.xxx.xxx.xxx:80> ServerAdmin some@email.com DocumentRoot /home/xxxxx/Sites/xxxxxxx.com/htdocs ServerName ...
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2answers
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PUT and DELETE methods in nginx

Is there anyway how to enable such http methods like PUT and DELETE for specific virtual host in nginx ? I need it for my RESTfull server application.
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3answers
37 views

UFW: How to block http requests on another port than 80?

I am running an application on port 7000 which is part of a network. So it has to communicate over port 7000 with all other servers of the network (not LAN, dynamic IPs). It has also a web frontend ...
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1answer
50 views

Apache refuses HTTP CONNECT over SSL on non default virtual host

I have an apache 2.4.18 server running with multiple vhosts. /etc/apache2/sites-enabled/000-default.conf: <VirtualHost *:80> DocumentRoot /var/www/html Redirect 400 / ...
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3answers
3k views

What's the difference between 301 and 302 in HTTP?

I see all tinyurl like sites use 302 But what's the difference?Seems both are working for me
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Apache HTTP Server+Tomcat: Which file generates mod_jk.conf, how to modify generated stuff, and how does httpd reach it?

I'm using XAMPP with Apache HTTP Server and Tomcat Add-On installed. There's a default mod_jk.conf which is generated by Tomcat when starting it. But which file generates this mod_jk.conf file? How ...
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39 views

Unable to get Nginx/Apache + FastCGI + PHP-FPM + HTTP/1.0 to use Keep-Alive

For a reason beyond my control (an app that cannot be modified), I need to get a server that processes HTTP requests for PHP pages over FastCGI, to honour "Connection: Keep-alive" (sent by said ...
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1answer
38 views

Why does Apache (and other browsers) throw 403 due to file system permissions? [closed]

To forestall any confusion, I am not asking for help with a technical issue debugging my web server. I am asking about the history and logic behind Apache (and other web servers) throwing 403 when ...
0
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1answer
22 views

some http packets not reaching host

we are experiencing a very strange issue with http traffic between 2 machines on the same network: when sending an HTTP request there are some packets not reaching the other host as you can see from ...
5
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2answers
2k views

Monit monitor http status with 404 page

I am trying to monitor HTTP status with 404 or 403 page. As you all know Monit takes those pages as failed connection, but how could I change that. I just want to monitor that it shows the 404 or 403 ...
5
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2answers
4k views

What is the difference between using upstream and location for php-fpm?

I've been searching around but couldn't find a straight answer, if someone could please clarify this, would be greatly appreciated, thanks! location ~ \.php$ { try_files $uri = 404; ...
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1answer
35 views

Is it normal to have HTTP 499 errors in 1 out of 4000 requests?

I made a website, behind CloudFlare, and sometimes I get an early terminated (nginx 499) request, which is really hard to work around in the codebase. This happens in about 1 out of 4000 requests. ...
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NGINX not recognizing $request

Well.. NGINX or me guess.. something that I'm not doing OK. The point is, I'm getting some request from bots of this type: 91.123.1.56 - - [04/Apr/2016:12:13:39 +0200] ...
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3answers
6k views

How to make ftp over http?

Ftp can be accessed by ftp://example.com but I have seen people accessing ftp using http://ftp.example.com How can I achieve this kind of functionality? Is there a way I can do this by installing ...