Hi Harald

Were they ok originally, and stopped working properly, or are you just trying 
to setup OSAD for the first time? Either way if you work through my personal 
notes (for OSAD), below, it may help to identify your problem. If everything 
has been done correctly it may be an infrastructure problem though ie 
un-reliable network connection or NTP?

By default, the rhnsd daemon on a client system connects to the Spacewalk 
server every four hours (see /etc/sysconfig/rhn/rhnsd) and performs any updates 
or actions that have been scheduled. If you install the OSA daemon, you can 
apply updates and actions to client systems immediately from the Spacewalk 
server.

osa-dispatcher
Server-side service that determines when an osad client instance needs to be 
pinged or run rhn_check and sends a message telling them to do so. This is 
installed when Spacewalk is installed.

Open Source Architecture Daemon (OSAD)
Client-side service that responds to pings and runs rhn_check when told to by 
osa-dispatcher.

See official documentation, at the following link, for more details:

https://github.com/spacewalkproject/spacewalk/wiki/OSADSetup

Install OSAD and related RHN/Spacewalk packages
# yum -y install osad rhncfg rhncfg-actions rhncfg-client

Spacewalk Actions Control - Enable Scheduled Actions
# rhn-actions-control --enable-all

Spacewalk Actions Control - Show Status
# rhn-actions-control --report

Start OSAD
# systemctl start osad.service OR service osad start

Enable OSAD
# systemctl enable osad.service OR chkconfig osad on

OSAD Log File
/var/log/osad


Hope this is of help
Phil

From: spacewalk-list-boun...@redhat.com <spacewalk-list-boun...@redhat.com> On 
Behalf Of harald.wacha...@akm.at
Sent: 14 February 2019 08:22
To: spacewalk-list@redhat.com
Subject: Re: [Spacewalk-list] Spacewalk 2.8 | Offline Clients

Hi, Jonathan,

Looks good:

[root@vie-srv-log02 ~]# netstat -tn|grep 5222
tcp        0      0 172.21.0.181:46018      172.21.0.166:5222       ESTABLISHED


Nerveless the client is offline in spacewalk.

Warm regards,

Harald


Von: 
spacewalk-list-boun...@redhat.com<mailto:spacewalk-list-boun...@redhat.com> 
<spacewalk-list-boun...@redhat.com<mailto:spacewalk-list-boun...@redhat.com>> 
Im Auftrag von Jonathan Horne
Gesendet: Mittwoch, 13. Februar 2019 21:48
An: spacewalk-list@redhat.com<mailto:spacewalk-list@redhat.com>
Betreff: Re: [Spacewalk-list] Spacewalk 2.8 | Offline Clients


all your clients should have established traffic to the spacewalk server on 
port 5222.  it should stay in an established state.


[jhorne@dlp-log01 ~]$ netstat -tn|grep 5222
tcp        0      0 10.12.59.52:38718      10.12.59.64:5222       ESTABLISHED

________________________________
From: 
spacewalk-list-boun...@redhat.com<mailto:spacewalk-list-boun...@redhat.com> 
<spacewalk-list-boun...@redhat.com<mailto:spacewalk-list-boun...@redhat.com>> 
on behalf of Wachauer Harald 
<harald.wacha...@akm.at<mailto:harald.wacha...@akm.at>>
Sent: Wednesday, February 13, 2019 10:17:45 AM
To: spacewalk-list@redhat.com<mailto:spacewalk-list@redhat.com>
Subject: [Spacewalk-list] Spacewalk 2.8 | Offline Clients

Hi  all,

I have the problem that most of my systems (CentOS 6 & 7) are going offline 
after approximately one day.
Only if I run rhn_check the systems come online again, but only for short time.

I have tried to install osad service, the service is running but nerveless the 
client is going offline.

Any help would be very appreciated.


Best regards,

Harald






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