[squid-users] Issue with Citrix sessions and squid

[Stephen Borrill]

On 08/07/2015 19:26, David Touzeau wrote:
> Dear
>
> I would like  to share a strange behavior.
>
> We have servers that stores Citrix application.
> Each Citrix server run about 10 users/session
> Each session execute browsers connected to squid 3.5.6 or 3.3.13.
>
> After opening 10 tabs, browsers generates error about Connections broken
> or connection unavailable from Proxy.
> So next tabs cannot be opened correctly.
> Both HTTP/HTTPS destination websites meet this behavior.
> if we wait several seconds , refresh the browser tab that generate the
> error, website can be opened.
> No Squid error page can be seen on the browser error.
>
> Using the same test without Squid ( in direct mode ) and inside a Citrix
> Session did *not* reproduce this issue
> Using the same test on a physical machine did *not* reproduce this issue.
> Using the same test on a server "Without Citrix" inside a TSE session
> did *not* reproduce this issue.
>
> Using the same test on  with Chrome and Internet Explorer and FireFox
> *reproduce* the issue
> Using Squid without any ACL, without any caching system, with only one
> worker *reproduce* this issue
>
> This issue can only be reproduced on a server with Citrix installed or
> inside a Citrix Session with Squid as proxy.
>
> It seems/like that Squid refuse connections from a Citrix Server.
>
> Can anybody have already reproduced/fixed this issue ?

I've been running squid + Citrix in a number of large installations 
since the 1990's. I've never seen a problem like you describe.

Are you using virtual IP addressing in your session?

-- 
Stephen