Squid unable to load single website.

  • For some weeks now my Squid proxy is unable to load the website https://community.openhab.org but all other websites seam to work. The website worked before and I didn't change anything in the settings. Now I'am getting a timeout from the proxy every time. If I enable the access log I can only find this line from the website:

    07.02.2019 15:19:24 TCP_TUNNEL/200 community.openhab.org:443 -

    I'm running pfSense 2.4.4-RELEASE-p2 (amd64) and squid version 0.4.44_7. Has maybe something changed in one of the latest pfSense or Squid updates?

  • It works fine for me with squid 0.4.44_7.

  • @kom I've just tested this with the internet explorer and there the page loads after about 1 minute. I guess this takes to long for the Chrome browser and is recognized as a timeout.

    So it is not the problem that the website is not working at all, but it loads very slowly. But without the proxy the page loads in a few seconds. What could cause such a delay on the proxy?

    Edit: The hardware the firewall is running on cannot be the problem. I have a Dell server only for pfSense with an Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz and 4 GB ram. CPU load is only 1% most of the time and memory usage is at 17%, so it is totally overpowered for my needs.

    Edit2: I just found a solution to my problem here: https://serverfault.com/questions/644604/squid-https-tunnelling-using-connect-very-slow
    After I've enable to option to try DNS IPv4 first the website was very fast again. It seams as there is a 60 second timeout on IPv6 resolution in squid.

  • Glad you got it sorted out.