Hi,

our OTRS instance (5.0.9 on CentOS 6) has a proxy configured in SysConfig Core::Package::Proxy


In the OTRS System Log I can see:

Fri Jun 3 18:31:23 2016 error OTRS-CGI-47 Can't perform POST on https://cloud.otrs.com/otrs/public.pl: 500 Can't connect to cloud.otrs.com:443 (Connection refused)


The package manager reports for every package:

SomeOTRSpackage 1.2.3 - Package not verified due a communication issue with verification server!


The Dashboard reports:

Can't connect to OTRS News server!


`tcpdump host cloud.otrs.com` reports (on each opening of the PackageManager):

18:33:43.833030 IP OUR_OTRSSERVER.45467 > portal.otrs.com.https: Flags [S], seq 3033083959, win 14600, options [mss 1460,sackOK,TS val 195676033 ecr 0,nop,wscale 7], length 0 18:33:43.833259 IP portal.otrs.com.https > OUR_OTRSSERVER.45467: Flags [R.], seq 0, ack 3033083960, win 14600, length 0 18:33:43.862154 IP OUR_OTRSSERVER.45468 > portal.otrs.com.https: Flags [S], seq 3311162058, win 14600, options [mss 1460,sackOK,TS val 195676062 ecr 0,nop,wscale 7], length 0 18:33:43.862399 IP portal.otrs.com.https > OUR_OTRSSERVER.45468: Flags [R.], seq 0, ack 3311162059, win 14600, length 0


This is the same pattern I see, when I do a `curl` to https://cloud.otrs.com *without* proxy. When accessing cloud.otrs.com through the proxy, there should no traffic be reported by `tcpdump host cloud.otrs.com`.


It doesn't make a difference if I define the proxy in Core::WebUserAgent::Proxy or in Core::Package::Proxy or in both.


Any thoughts or pointers on how to solve this issue?

Cheers
Frank


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