Pound reverse proxy for windows

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You may never hear of Pound before. According to the developers, Pound was developed to enable distributing the load among several Web-servers and allow for a convenient SSL wrapper for those Web servers that do not offer it natively.

If you face any issues, feel free to ask us. So either you can stop Apache if you are not using it or change the Apache port to something else. Now you are all set to install Pound Proxy. Please follow the below steps. While Apache has proven remarkably exploit free, I wouldn't wish to go into a security audit for the tens of thousands of lines of code involved, not to mention all the additional modules.

Squid: great caching proxy, but even should load-balancing features become available in the future, do you really need caching on the load-balancer? After all, Pound can easily run on a disk-less system, whereas with Squid you'd better prepare a high throughput RAID. Squid is still perfectly usable as a caching proxy between Pound and the actual Web server, should it lack its own cache which Zope happily has. Pound fails to start; HTTPS is enabled and the message "can't read private key from file xxx" appears in the log.

The file should be in PEM format. The OpenSSL command to generate a self-signed certificate in the correct format would be something like In chroot mode logging may stop functioning. Alternately you can have syslog or syslog-ng listen on another socket - see the man page for details.

In chroot mode name resolution and especially redirects may stop functioning. Solution: make sure your resolver works correctly in the jail. Depending on your system additional files may be required check your resolver man page for details. Should name resolution fail the translation of host names to IP addresses would fail, thereby defeating the mechanism Pound uses to identify when should a Redirect be rewritten. Linux-specific: some people use various redundant Pound solutions for Linux which require Pound instances on separate machines to bind to the same address.

The default configuration of Linux does not allow a program to bind to non-local addresses, which may cause a problem. Solution: add. David Couture found some nasty, lurking bugs, as well as contributing some serious testing on big hardware. Abner G. Jacobsen did a lot of testing in a production environment and contributed some very nice ideas.

Ken Lalonde contributed very useful remarks and suggestions, as well as correcting a few code errors. Phil Lodwick contributed essential parts of the high-availability code and came up with some good ideas. In addition, did some serious testing under heavy loads. Gurkan Sengun tested Pound on Solaris, contributed the Solaris cc flags and makes a Solaris pre-compiled version available on his Web-site www.

Shinji Tanaka contributed a patch for controlling logging to disk files. The result is that on setting-up a new SSL connection, the server replies not with "I am www. If the browser is capable of processing this type of certificate then the connection is set up and normal HTTPS with www. Pound supports these certificates and you can use virtual hosts in the normal way.

Update June starting with the 2. Basically you supply Pound with several certificates, one for each virtual host wild card certificates - as described above - are allowed. On connecting the client signals to which server it wants to talk, and Pound searches among its certificates which would fit.

An additional option is to use a semi-official TLS extension, the so called alternate subject name. If your version of OpenSSL supports it you may specify in one certificate several alternate server names. This requires support for a special TLS feature, and nor all clients accept it. From this moment on any request to that host will be mapped back and forth by Zope to the required URL.

This works weather you access Zope directly or via any number of proxies on the way, Pound included. All requests are mapped correctly, and the URLs in the pages such as base or absoluteURL are translated correctly in the response. Unfortunately, HTTP is defined as a stateless protocol, which complicates matters: many schemes have been invented to allow keeping track of sessions, none of which works perfectly.

Even worse, sessions are critical in order to allow web-based applications to function correctly - it is vital that once a session is established all subsequent requests from the same browser be directed to the same back-end server. The value indicates what period of inactivity is allowed before the session is discarded.

Make sure all your servers support the same authentication scheme! Please note the following restrictions on session tracking: - session tracking is always associated with a certain Service. Thus each group may have other methods and parameters. If your application has alternative methods for sessions you will have to define a separate Service for each method. A note on cookie injection: some applications have no session-tracking mechanism at all but would still like to have the client always directed to the same back-end time after time.

Some reverse proxies use a mechanism called "cookie injection" in order to achieve this: a cookie is added to the back-end responses and tracked by the reverse proxy. Pound was designed to be as transparent as possible, and this mechanism is not supported. If you really need this sort of persistent mapping use the client address session mechanism Session Type IP , which achieves the same result without changing the contents in any way.

There are two exceptions to this rule: Pound may add information about the SSL client certificate as described below , and it will add an X-Forwarded-For header. The general format is: X-Forwarded-for: client-IP-address The back-end server s may use this extra information in order to create their log-files with the real client address otherwise all requests will appear to originate from Pound itself, which is rather useless.

In addition, Pound logs requests and replies to the system log. This is controlled by the LogLevel configuration variable 0 - no logging, 1 - normal log, 2 - full log, 3 - Apache combined log format, 4 - Apache combined log format without virtual host. Please note that this mechanism allows forgeries: a client may maliciously send these headers to Pound in order to masquerade as an SSL client with a specific certificate. If this is a problem for your application make sure to deny these requests.

Please keep in mind the following requirements: - on most System V derived Unices of which Linux up to 2. This means that when doing a 'ps' you will see as many processes with the name 'pound' as there are active threads. Each such process uses only two file descriptors, but the system needs to support the required number of processes, both in total and per user possibly also per process group.

In bash, this is 'ulimit -u', in csh this is 'limit maxproc'. Do a ps and you see a single 'pound' process. In very rare cases very high load and long response times you may run into this limitation - the symptom is log messages saying "can't create thread". What tools integrate with HAProxy? What tools integrate with Pound?

No integrations found. Sign up to get full access to all the tool integrations Make informed product decisions. How px serves up over TB of high res photos. What are some alternatives to HAProxy and Pound? According to Netcraft nginx served or proxied A modern HTTP reverse proxy and load balancer that makes deploying microservices easy.

Traefik integrates with your existing infrastructure components and configures itself automatically and dynamically. Squid reduces bandwidth and improves response times by caching and reusing frequently-requested web pages.