The reason and solution were not simple and obvious at first glance. I have two providers accessing the gateway, the main and backup channels, and automatic switching is configured when the connection on the main channel is lost. To check, I switched the proxy server to the second channel and the problem with partial unavailability of Google services was solved.
I returned it back, used a simple formula in the configuration file with subsequent partial adjustment of ipfw. # Google via ISP2 acl google dstdomain .google.com tcp_outgoing_address REAL_IP_ISP2 google сб, 21 дек. 2024 г. в 20:26, A. Pechenin <alexm...@gmail.com>: > This week, when connecting users through a proxy server, some Google > services became inaccessible, such as Calendar, Translator, user profile. > > When clicking on the services section in the browser on the Google portal, > the page does not open and then a connection error is displayed. When > directly going to the calendar section, the connection also hangs for a > long time without loading the page. At the same time, the Google home page, > mail, search work. > > Transparent proxying is not used. > Viewing the proxy server logs did not add any understanding, all requests > are processed correctly and no errors or prohibitions are observed. There > are no other problems with the unavailability of any sites. > > When connecting directly (bypassing the proxy server), all Google services > work completely correctly. > The platform on which the problem was suddenly discovered: > FreeBSD 13.2-RELEASE-p9 > Squid 6.6 > > A new separate server was deployed for objectivity and finding the cause, > but the problem was also reproduced there, its platform. > FreeBSD 13.4-RELEASE-p2 > Squid 6.10 > > I tried using the default configuration file (recommended minimum > configuration) to eliminate the problem in my working squid.conf, but the > problem remained > > I repeat, the problem reproduced suddenly, no changes were made to the > proxy server configuration on our side, no problems with Google have arisen > for many years. What should I pay attention to in the Squid configuration? > Any idea >
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