Test websocket connections
You can use wscat:
sudo apt-get install node-ws
#
wscat -c ws://echo.websocket.org
connected (press CTRL+C to quit)
> foo
< foo
> bar
< bar
>
Related cards:
swaks - Swiss Army Knife SMTP, the all-purpose smtp transaction tester
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To measure the time of your HTTP request with curl, you can use the -w (--write-out) option:
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...
GitLab: Test Mailing from the Rails Console
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sudo gitlab-rails console
Note
This takes some minutes to start
Send a mail
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Useful PostgreSQL commands
on the bash (issued as postgres user)
Start/Stop/Restart PostgreSQL
pg_ctl -D $configdir start|stop|restart
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If you want to perform a failover on another haproxy backend server this is the way you should do it:
Gather information
Via hatop
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