Tagged Questions

HTTP is just one communications protocol on the web. Others include: Transmission Control Protocol (TCP) tcp User Datagram Protocol (UDP) udp Internet Control Message Protocol (ICMP) icmp Post Office Protocol (POP3) pop3 File Transfer Protocol (FTP) ftp Internet Message Access Protocol (IMAP) imap ...

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0
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1answer
23 views

Inspecting http traffic

I'm running a CentOS 5 with plesk 10 and problems with slow website loading, now my provider tells me i'm excedding my bandwith. I've been monitoring the bandwith with iftop and it showed me some ...
1
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0answers
33 views

A tool to measure overhead of establishing TCP connections

I need a tool which would while doing port forwarding measure how much time was spent establishing TCP connections vs total time passed. Charles debugging proxy has the port forwarding feature and ...
0
votes
1answer
16 views

curl cookie and cookiejar trouble

I've got a script that curls a site using a specific cookie value in a cookie file. When I run this on my local system, the server returns the same value to my cookie jar, as per my expectations. When ...
0
votes
1answer
25 views

use iptables for transparent access to 2 proxies depending on domain

I have a setup where I have 2 proxy servers. One is a socks proxy which I wish to use for ALL connections by default. The second proxy is an http proxy which I wish to use for http connections to ...
0
votes
1answer
27 views

Access Control Allow Origin of Openfire XMPP server

I'm running an Openfire XMPP server on a virtual hosting service. When I sent an XmlHttpRequest to that server by Javascript, I got the error from Chrome's dev console: "XMLHttpRequest cannot load ...
-1
votes
1answer
34 views

User http does not have write permissions directory?

I have a bit of an odd set up, I think. I have groups for each domain my server hosts, and I add the user http to each domain group along with the users that should have access to the groups' domains. ...
0
votes
1answer
26 views

Why httpd running as root and the rest as apache in ps -aux?

When I do ps -aux, why do I have one copy of httpd running as root and the rest as apache? ps -aux | grep httpd Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ root ...
2
votes
1answer
33 views

Web page hangs on reload/refresh

I'm experiencing a strange problem with my website. If I navigate through links inside the website everything is fine, and pages load fast. If I hit the refresh button on the browser on any page, the ...
0
votes
1answer
25 views

HTTP resource caching / fetching

I'm trying to optimise a page, and I'm seeing some strange behaviour. Each time I click on a link to the page, all resources are fetched from the server, responding with 200s. However, when I refresh ...
0
votes
1answer
35 views

How can I block HTTP while allowing FTP using htaccess under Apache?

I can easily block requests to a directory using a .htaccess file with "deny from all". However, I allow want to allow FTP access via clients and browsers alike. Is there a way I can restrict the ...
0
votes
2answers
210 views

Google SPDY - Has anyone used it on Apache?

Just wondering if anyone has had any experience with Google SPDY on Apache? http://code.google.com/p/mod-spdy/ I run a couple of web servers and am interested to know if there have been any issues ...
1
vote
0answers
6 views

Mimicking file requests on my web server

I haven't been able to test this extensively yet, so bear with me. The scenario is like so: I created a temporary file on my web server, downloaded the file, deleted the file. About 3 minutes later I ...
-2
votes
0answers
65 views

Why http request are ignored? [migrated]

I have the following network: · openbsd 5.0 web server (LAN) · windows 7 (LAN) · router provided by my ISP (LAN, WAN) · cell phone not conected to the network (WAN) UPDATE As LAN I mean a home ...
1
vote
1answer
34 views

Wireshark - Filter for Inbound HTTP Requests on Port 80 Only

We are integrating with an outside company in which we have had to make certain IP and port restrictions. First, I am novice at network administration, so If I butcher anything, please forgive me. ...
1
vote
1answer
40 views

An attack? What are the second status codes(286, 289) for in the log (a web scan)?

Going through my assess-logs today, I found so many entries trying to access pages. (that were not present). Like robots.txt (I know what this is used for) apply favicon.ico(I know what ...
-1
votes
2answers
79 views

20 000 000 hits; simple PHP/MySQL server using NGINX [closed]

I am hosting a big campaign that is going to launch tomorrow. The expected avg. number of visits on the first day is +200 000 users. Assuming everyone is going to visit 5 pages on avg., this makes 1 ...
0
votes
2answers
68 views

HTTP Proxy for Windows server

I am sorry that the question is probably not what you thought it is. I have a box in US on colo which is collecting some data but is fairly easy on the resources. it runs w2008r2. and it has one NIC ...
0
votes
1answer
60 views

Forward Http Request to different machine

I am working on a MAC machine and expected to use some of the Webservices which are present on a different network. The general way to access these webservices is through VPN to that network and then ...
1
vote
1answer
66 views

Redirecting users who have come from the wrong Referer

Ignoring the merits of whether we should make this change or not (the circumstances are slightly complex and probably covered by my NDA), our client would like us to require that visitors to the site ...
3
votes
4answers
530 views

Hiding non-standard ports in the address bar?

Some applications (such as Plone) default to serving http on ports other than 80 (eg 8080). Typically, to view those webapps you need to load http://mysite.tld:8080 instead of just http://mysite.tld ...
1
vote
1answer
45 views

Configure Apache2.2 as http to https encrypter/converter

I am using Apache 2.2 on SUSE 10 with mod_ssl. My problem: I want to connect a client(supporting only http) to a Server(supporting only HTTPS). So I thought of deploying Apache as a proxy to convert ...
0
votes
1answer
21 views

IIS7 HTTP Redirect - Change Site1 Content and Removes Site2 Redirect

We had two sites setup in IIS7.5 for a long time. They were named (not real name but you get the point).... "domain.com" and "www.domain.com" The purpose was to set "HTTP Redirect -- Redirect ...
1
vote
2answers
51 views

Using curl to request URL that redirects to relative URL with anchor tag

I'm using curl to request a URL that redirects to a different URL using a Location: line like: Location:/path/to/resource#name As I understand it, that line in the redirect response is invalid per ...
1
vote
0answers
59 views

PXE Boot PCLinuxOS ISO

I'm in the process of trying to convert some computers at my local school to be diskless browser stations. We've identified PCLinuxOS as the OS we'd like to use due to it's easy interface for ...
0
votes
2answers
84 views

IIS Configuration with HTTPS

I have 2 servers I am setting up. They are both Windows Server 2008 R2. They are both getting IIS setup as web servers. I have set up other servers that we currently have in production. I did the ...
0
votes
1answer
38 views

Windows 2003 Std HTTP issues (also affects windows updates)

I have 3 Windows 2003 servers in a domain. Server 1 is running the AD and VPN roles. Server 2 is running Exchange 2003. Server 3 is running some third party network apps and was supposed to be running ...
0
votes
0answers
25 views

Home server not responding to HTTP [migrated]

I have a home server running Ubuntu 11.10. It is currently configured to have a static IP address via my router. I also use a Dynamic DNS service built into the router to update my domain name to ...
5
votes
1answer
92 views

.htaccess rewrite http to https results in loop

On an apache 2.2 server running varnish, I am trying to redirect http -> to https for an entire Drupal Commons (http://commons.acquia.com/) site. Since varnish caches some redirects (R=301, but not ...
0
votes
3answers
53 views

http or https for file download?

I am going to be distributing a file to people after they purchase it. I'm trying to determine whether I should use http or https to deliver the actual file. My hosting plan is pay-as-you-go. Will ...
9
votes
1answer
144 views

Stop IIS 7.5 From Sending Out Cache-Control Max-Age on Error Codes

I have some static content with cache control Max-Age headers attached to it so clients will cache the static content. However, IIS 7.5 still sends this header out when there are error responses ...
-1
votes
2answers
38 views

HTTP request after resolving DNS

I'm looking at a device wireshark recording and see something weird. After I completed the DNS resolve transaction (query + resonse), I immediately get an HTTP response (200 OK) from the responding ...
2
votes
2answers
207 views

What sort of magic is my ISP doing?

While trying to setup OpenDNS, and failing to make website filtering actually work, I realized my ISP is doing something nefarious with all HTTP requests. To make a long story short, if there's a ...
0
votes
2answers
34 views

HTTP / Redirecting to a URI on the server

I want to redirect a certain URI to a new one on the same server. This can be done by sending a response with a 3xx code, and a 'Location' header. Now the HTTP/1.1 standard dictates that this should ...
0
votes
3answers
73 views

Secure tunnel between two Windows Server 2008 R2 hosts

I'm looking for a way to set up a secure tunnel for HTTP traffic between two hosts on separate networks/domains over a single port. The caveat is that I have no control over the physical aspects of ...
0
votes
1answer
42 views

How to check http errors with Windows 2008 Server?

This is the best I can describe my problem... I am running a search engine scraper essentially on Windows 2008 Server. Constantly accessing millions of random domain names and following their links ...
1
vote
0answers
81 views

Making mod_proxy_http send back response asynchronously (w/o 100 Continue)

A servlet engine (Jetty) is running behind an Apache Httpd server, forwarded using mod_proxy_http. This is running a small servlet that accepts PUT requests and is authenticated using HTTP Basic ...
3
votes
1answer
75 views

Image caching using HTTP_IF_MODIFIED_SINCE

I found that adding RewriteRule .* - [E=HTTP_IF_MODIFIED_SINCE:%{HTTP:If-Modified-Since}] RewriteRule .* - [E=HTTP_IF_NONE_MATCH:%{HTTP:If-None-Match}] To the bottom of my htaccess file (below all ...
0
votes
1answer
124 views

http -> https redirection with websockets

I have a Node.js app which is heavily reliant on websockets. I want to redirect anyone trying to access it via http (80) to https (443). I would use nginx however it does not play well with ...
0
votes
0answers
202 views

git push over smart HTTP fails with 403

This has been driving me nuts. I'm running git 1.7.8.rc4 with Apache/2.2.14 on Lucid Ubuntu, and set up LDAP authentication. The authentication seems to be working fine, and i can pull, but i can't ...
0
votes
1answer
92 views

Few requests/sec, but choke Apache and spike CPU

We have two load balancers running HAProxy which serve requests to an application server. We've recently been getting spikes of traffic from script kiddies running vulnerability checks against our ...
1
vote
1answer
48 views

Using curl to make a HEAD request with a hard timeout

I'd like to use curl to send a HTTP HEAD request to a URL to verify that it is working correctly (server is up and sends a successful response). At the end, I need the final HTTP response code ...
-1
votes
1answer
34 views

Lightweight Windows HTTP server for static content from CD/DVD

I need a very lightweight Windows HTTP server to put onto CD/DVD. I've tried just using “file:” “protocol”, but there're too many problems: IE disallows JavaScript by default. There's a workaround ...
0
votes
1answer
23 views

Apache mod_deflate only for files larger than 1000 bytes

Is it possible to use mod_deflate in Apache 2.2 only for files bigger than a certain size ? According to this article and common sense only files over 1000 bytes benefit deflate/gzip.
0
votes
2answers
68 views

Trying to set up SSL for a Ruby on Rails app, mac Lion says ports 80 and 443 are already in use.. how do I debug / solve?

In the above picture is my console output which occurs when I run sudo /usr/sbin/apachectl restart the console doesn't have any messages of syntax errors or anything when I manually start and ...
0
votes
1answer
59 views

What is the maximum file size that will be cached by a browser? [closed]

What is the maximum file size that will be cached by a browser? Note that I don't mean the maximum size of the browser cache. I mean, what is the maximum individual file that will be cached. If ...
0
votes
2answers
61 views

Why does ONLY MY server can't access another specific server files?

Here is the simplest action that works on my Ubuntu 11.10 laptop : $ wget mercurial.selenic.com/release/mercurial-2.0.1.tar.gz --2011-12-06 21:41:16-- ...
2
votes
2answers
116 views

When does a browser send HTTP payload separately from the HTTP request?

Under what circumstances would you expect a web browser split an HTTP request into two IP packets, even if the sum of the packet sizes is still less than the maximum segment size? I would assume that ...
0
votes
0answers
34 views

Apache 2.2 Change HTTP Request Method From POST to GET

Is there a way I can change the HTTP Request Method from POST to GET using apache modules such as mod_rewrite or 3rd party module ? The reason I'm doing this is to minimize server side changes as I'm ...
0
votes
1answer
78 views

What is responsible for Connect/Send/Wait in a HTTP request?

Services like pingdom and Google speed analyze the time consumed for reading a HTTP file. This includes DNS: Obviously, DNS management to interpret the namespaces is responsible. Connect: ??? Send: ...
1
vote
1answer
54 views

PHP script occasionally waits 20-30 minutes to start

I have a PHP script on my server that, primarily, takes files from an upload and moves them into place. It usually works fine, but occasionally, the script won't start for 20-30 minutes. The entire ...

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