# Random 502 Bad Gateway **URL:** \ **Category:** Rails\ **Created:** [January 31, 2006, 5:51pm UTC](https://www.ruby-forum.com/t/random-502-bad-gateway/53298 "2006-01-31T17:51:55Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Bogdan\_I](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/ea666f/32.png) [@Bogdan\_I](https://www.ruby-forum.com/u/Bogdan_I)\ **Post date:** [January 31, 2006, 5:51pm UTC](https://www.ruby-forum.com/t/random-502-bad-gateway/53298/1 "2006-01-31T17:51:55Z")
I have moved my project to a dedicated server and I am getting a very annoying behaviour. I am able to view the site just fine when using the ip. The name is properly resolved on my computer, however I am getting “Bad Gateway The proxy server received an invalid response from an upstream server.” This is simply random. The site works for several minutes, then i get this message for some time. I get nothing in any of the logs, and I get the same behaviour on both apache2 and lighttpd. Using directly the IP works with no problems at all. I would really appreciate some clues on how to deal with this (well, other than getting drunk and forgetting about 😉 ) Thanks, Bogdan ---
**Author:** ![Bogdan\_I](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/ea666f/32.png) [@Bogdan\_I](https://www.ruby-forum.com/u/Bogdan_I)\ **Post date:** [January 31, 2006, 6:16pm UTC](https://www.ruby-forum.com/t/random-502-bad-gateway/53298/2 "2006-01-31T18:16:16Z")
On Jan 31, 2006, at 8:50 AM, Bogdan I. wrote: > Using directly the IP works with no problems at all. > > I would really appreciate some clues on how to deal with this > (well, other than getting drunk and forgetting about 😉 ) > Thanks, > Bogdan Bogdan- ``` I have seen that error before when I was using an apache vhost with ``` proxypass and proxypassreverse to proxy to a lighty server on a high port. I have a slight mis-configuration in the proxy vhost and it made every request to the server give that same error until I fixed it. ``` Are you using mod_proxy for anything with apache? If so I can send ``` you a good known working vhost to use. Let me know. Cheers- -Ezra Z. Yakima Herald-Republic WebMaster > **[yakimaherald.com | Yakima, Washington - We Tell Your Stories](https://www.yakimaherald.com/)** 509-577-7732 removed\_email\_address@domain.invalid ---
**Author:** ![Bogdan\_I](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/ea666f/32.png) [@Bogdan\_I](https://www.ruby-forum.com/u/Bogdan_I)\ **Post date:** [January 31, 2006, 6:31pm UTC](https://www.ruby-forum.com/t/random-502-bad-gateway/53298/3 "2006-01-31T18:31:35Z")
No, no mod\_proxy. Also I was getting the same thing with lighttpd. This seems to somehow be dns related. It appears that the ip of the new machine fluctuates randomly. The admin of the network hosting the server says everything is alright there, but the ip just seems to go back and forth. At the same time, i’ve stopped the web server on the original machine, and the error is still Bad gateway 😛 Now it seems to be better, so I am hoping that this will fix by itself 😉 ---
**Author:** ![Bogdan\_I](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/ea666f/32.png) [@Bogdan\_I](https://www.ruby-forum.com/u/Bogdan_I)\ **Post date:** [January 31, 2006, 9:53pm UTC](https://www.ruby-forum.com/t/random-502-bad-gateway/53298/4 "2006-01-31T21:53:34Z")
r u sure it is not a problem of ur DNS server Check with ur hosting company On 1/31/06, Bogdan I. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > "Bad Gateway The proxy server received an invalid response from an > > > Bogdan > > > Are you using mod\_proxy for anything with apache? If so I can > > Rails mailing list > removed\_email\_address@domain.invalid > [http://lists.rubyonrails.org/mailman/listinfo/rails](http://lists.rubyonrails.org/mailman/listinfo/rails) – Rgds, –Siva J. [http://www.varcasa.com/](http://www.varcasa.com/) My First Rails Project. Powered by Typo and soon by RForum too