OP5 – web-workers.ch

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Category: OP5

Why does Postfix deliver mails locally instead of relaying them?

23.10.2017

Tom Huerlimann

We get the following error message if the OP5 host tries to deliver emails: Oct 23 02:23:44 thuop5 postfix/qmgr[2690]: 8F98A1020C3: from=<monitor@xyz.ch>, size=1041, nrcpt=1 (queue active)</monitor@xyz.ch> Oct 23 02:23:44 thuop5 postfix/pickup[5959]: […]

How to fix OP5 monitor execution time warning

07.01.2017

Tom Huerlimann

In case you have a lot of monitors configured and/or monitors who will take some time until they are executed, it can happen that the OP5 internal monitor throws a […]

How to fix non working RRD graphs after uncontrolled OP5 shutdown

02.01.2017

Tom Huerlimann

Check if data files are updated Goto RRD data directory # cd /opt/monitor/op5/pnp/perfdata Goto the host’s RRD data directory and check if the files are outdated # cd /opt/monitor/op5/pnp/perfdata/gepacsdb.health.root.loc # […]

How to configure OP5 to send SMS via Telit HT910G

02.12.2016

Tom Huerlimann

Connect Add your SIM card to the Telit GSM modem and attach it via USB port to your server. To find the port where your GSM modem is attached, execute the […]