So, after the Nginx update on Debian some of the business functions of the portal Bitrix stopped working.
It turned out: the problem is that there was a previos nginx version where the necessary module was compiled manually.
1. rebuild fresh nginx with the push-and-pull module (nginx-push-stream-module)
2. configure that it is not updated
 The following sequence of commands makes it clear what to do:
Download Nginx and nginx-push-stream-module sources:
apt-get build-dep nginx
apt-get source nginx
mkdir nginx-1.8.1/debian/modules && nginx-1.8.1/debian/modules
! at the moment, you can not put the module version 0.5 and higher on Bitrix – it will not work, Bitrix developers limited to these versions
Add next under the last “–with-http” in the rules for building the package:
Compile and install deb package:
dpkg -i nginx_1.8.1-1~wheezy_amd64.deb
 Now we need to make the hold on the package – so that we will not update
(for example, go to aptitude and click on the name of the package “=”)
On a note. It is always important for a freelancer or a remote employee to profitably exchange electronic money , for this it is better to use the trusted monitoring of exchange points of electronic currencies