Verified Commit e58de2bd authored by anarcat's avatar anarcat 💥
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favor the nc approach to debugging, reduces complexity and POLA 

POLA: principle of least astonishement. for an admin not familiar with
the blackbox exporter, that `curl` is a huge WTF. so we instead show
the more familiar nc command, and also explain what it does.

*then* we introduce the blackbox stuff.
parent a844c2f7

service/donate.md

+9 −5
Original line number Diff line number Diff line
@@ -410,14 +410,18 @@ strongSwan. See also the [IPsec documentation](howto/ipsec) for more 
troubleshooting tricks.



If the tunnel is up, you can check that you can reach the service from the

frontend server:

frontend server. Redis uses a simple text-based protocol over TCP, and

there's a PING command you can use to test availability:



    curl 'http://localhost:9115/probe?target=crm-int-01-priv:6379&module=redis_banner&debug=true'

    # The following is equivalent but with less debugging info:

    echo PING | nc -w 1 crm-int-01-priv 6379



If you can't reach the service, check on the crm-int-01.tpo server that the

redis service is correctly running.

Or you can try reproducing the blackbox probe directly, with:



    curl 'http://localhost:9115/probe?target=crm-int-01-priv:6379&module=redis_banner&debug=true'



If you can't reach the service, check on the [CiviCRM server](howto/civicrm)

(currently `crm-int-01.torproject.org`) that the Redis service is

correctly running.



## Disaster recovery